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Ministry of Energy Mines and Responsible for Core Review

GSB Publications Release Notifications for 2013

 

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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
Release Notification 2013-15  


December 17, 2013

 

Open File 2013-09: British Columbia Surficial Geology Map Index


by Holly Arnold and Travis Ferbey

 

This publication is released in PDF, ESRI Geodatabase, ESRI Map Package, Shapefile, and KMZ formats.

 

Open File 2013-09 is a surficial geology map index for British Columbia. The maps indexed were produced by the British Columbia Geological Survey, the Geological Survey of Canada (GSC), and Geoscience BC.  We included only those maps available for digital download.  Each map is represented by the actual map extent rather than a bounding box or NTS sheet that it falls within.  The index provides an accurate representation of the areal extent of surficial geology mapping for British Columbia.

 

The index is presented by map scale.  In the digital versions of this index, advanced searches can be conducted on fields such as author, source type (data available in digital or PDF form), or source series (Preliminary maps to A Series or Geoscience maps). Publication page URLs are supplied for each map from which the source files, PDFs or digital data can be downloaded.  Also included is supplemental information about where data were derived and/or used elsewhere. Instances of this would be when an author published a map that was then revised and published as a GSC A Series map or when a map was used in a subsequent compilation. In such cases, not only are the publication numbers provided for these other maps, but links to their publication pages as well. This enables users to see all sources of the same data. In some cases original mapping is only available as a PDF but a subsequent map or compilation has made it available as an attributed vector file (e.g., shapefile).

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/OF2013-09.aspx

 

Most provincial geoscience data can be easily accessed over the internet in map format at:

www.MapPlace.ca and through various thematic pages at www.empr.gov.bc.ca/geology

 

BC Geological Survey Publications are available online at

http://www.empr.gov.bc.ca/mining/geoscience/publicationscatalogue/

 

Questions or to update your contact info please contact the BC Geological Survey:

Email: Geological.Survey@gov.bc.ca

 

Tel: 250-952-0372    Fax: 250-952-0381

 
 
 
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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
Release Notification 2013-14  


December 2, 2013

 

Open File 2013-08:  A Review of Skarns in the Canadian Cordillera


by Gerald E. Ray

 

The Cordillera of western Canada has a long history of mining metal from skarn.  The British Columbia and Yukon MINFILEs and the NWT NORMIN databases contain details on more than 1000 occurrences of skarn, recording alteration and mineral assemblages, host-rock descriptions, the nature and age of associated intrusive rocks, and details of scientific investigations, exploration, and mining.  Open File 2013-08 compiles significant skarns and skarn deposits in the Canadian Cordillera, examining their distribution, age, tectonic setting, mineralogy, and chemistry.  With voluminous extent and high metal grades, some Cordilleran Au, Cu, Fe and W deposits can be classed as 'megaskarns'.  This paper presents a new model that considers the origin of megaskarns in terms of the diachronous migration of hydromagmatic and meteoric fluid cells, with prograde and retrograde alteration expanding through time and space.

 

  
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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
Release Notification 2013-13  


November 21, 2013

 

GeoFile 2013-07:  Geochemistry of Gossans and Float in the Kootenay, Slide Mountain, and Quesnel Terranes
(NTS 92P, 82M, 82L)


by Roger C. Paulen and Ray E. Lett

 

In 1997 and 1998, the British Columbia Geological Survey and the Geological Survey of Canada conducted till geochemistry surveys north of Kamloops.  Trace, minor, and major element analyses from 1513 till samples contributed to the Eagle Bay Project, an integrated regional exploration program that focused on Devonian-Mississippian rocks of the Eagle Bay assemblage and Permian to Devonian rocks of the Fennell Formation.  During the till geochemistry surveys, 60 grab samples were collected, 37 from gossanous outcrops and 23 from mineralized float.  GeoFile 2013-07 presents analytical data derived from these samples, with a report and three spreadsheets.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/GF2013-7.aspx

 

 
 
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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
  

October 25, 2013

 

Fiona Katay:  New Kootenay-Boundary Regional Geologist


Fiona Katay has recently been appointed Regional Geologist for the Kootenay-Boundary Region.  Based in Cranbrook, Fiona will:  monitor coal and mineral exploration, development, and mining activities; advise the sector on trends and opportunities; engage in technical marketing, provide in-house expertise, assist prospectors, interact with local exploration groups, represent mining interests in land-use planning, and conduct independent research.

 

For over 14 years, Fiona has worked for mineral exploration companies in the Kootenays, and as a basin analyst examining the sedimentology, stratigraphy, diagenesis, magmatic history, geophysics, and structure of Cordilleran continental, marine, and transitional deposits.  She has proposed and managed multi-year resource exploration projects including mapping, 3D modelling, resource evaluation, and grade control at a small gold mine.  A long-time resident of Kimberley, Fiona brings a wealth of industry and First Nations experience to bear on coal, industrial minerals, and metal deposits in the Kootenay-Boundary region.

 

Fiona.Katay@gov.bc.ca

250-426-1758

1902 Theatre Road

Cranbrook, BC

V1C 7G1

 

 
 
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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
  

September 20, 2013

 

2013 British Columbia Geological Survey Open House, and Canadian Tectonics Group Workshop November 14-16, 2013


Each year in Victoria, the British Columbia Geological Survey holds an open house co-sponsored with the Pacific Section of the Geological Association of Canada.  For 2013, the event will be held jointly with the annual Canadian Tectonics Group Workshop.

 

 

Marriott Hotel, Pacific Ballroom

728 Humboldt Street, Victoria

 

 

Thursday, November 14

BCGS Open House featuring presentations focused on the Cordillera by our staff and researchers from the School of Earth and Ocean Sciences (University of Victoria) and the Pacific Geoscience Centre (Geological Survey of Canada).

 

Friday, November 15

Canadian Tectonics Workshop (Structural Geology and Tectonics Division of the Geological Association of Canada), with talks and posters by researchers from across Canada.

 

Deadline for submission of abstracts to CTG workshop: October 14.

Submit abstracts to Stephen Johnston (stj@uvic.ca) indicating if submission is for a talk or a poster

 

Saturday, November 16

Field trip, Tectonics of southern Vancouver Island: A foot traverse along Victoria’s southern coast.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/Pages/registration.aspx

 

Registration

Please register using the attached form. Attendees are encouraged to register by November 1.

 

Registration ($75.00 for professionals; $25.00 for students) includes coffee breaks, and a social event on Thursday, November 14. It does not include lunch.

 

Field trip registration ($50.00 for professionals; $15.00 for students) includes coffee, snacks, lunch, transportation and guidebook. Please make payment onsite, once space has been confirmed.

 

Please submit registration forms by email, fax, or regular mail.

 

Email: Janet.Hughes@gov.bc.ca

 

Fax: 250-952-0381

 

Mail

BC Geological Survey,

PO Box 9333 Stn Prov Govt

Victoria, BC V8W 9N3

attn: Janet Hughes

 

Fees can be paid by cheque and mailed to the above address. Please make cheques payable to Pacific Section, Geological Association of Canada.

 

 

                           

   

 

   

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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
  

September 20, 2013

 

BCGS at Society of Economic Geologists Meeting in Whistler


The British Columbia Geological Survey will be participating at the Society of Economic Geologists International Meeting being held at the Whistler Conference Centre, September 24-27, 2013.

 

Please stop by our booth in the Exhibit Hall to learn more about our projects and programs.  Survey geologists will be presenting the results of their research and highlighting new activities.

 

Wednesday September 25, 9:30 – 10:00, Ballroom A

JoAnne Nelson and Maurice Colpron, Tectonics and metallogeny: The Cordillera of British Columbia, Yukon and Alaska

(keynote address)

 

Thursday, September 26, Poster Session (Exhibit Hall)

James M. Logan and Mitchell G. Mihalynuk

Slab breaks and Early Mesozoic paired alkaline porphyry deposit

belts (Cu-Au ± Ag-Pt-Pd-Mo) in the Canadian Cordillera

 

S. Paradis, G.J. Simandl, H. Keevil, M. Raudsepp

Carbonate-hosted non-sulphide Zn-Pb mineralization in glaciated regions of British Columbia, Canada

 

Friday poster, September 27, Poster Session (Exhibit Hall)

Matthew J. Manor, James S. Scoates, Graham T. Nixon, and Doreen E. Ames

Platinum Group Element geochemistry and platinum group minerals within ultramafic arc magmas: The Giant Mascot Ni-Cu(-PGE) deposit, Hope, B.C.

 

Sarah Jackson-Brown, James S. Scoates, Graham T. Nixon, and Doreen E. Ames

Platinum group element mineralization in the DJ/DB zone of the Turnagain alaskan-type Ultramafic Intrusion, North-central British Columbia

 

D.A. Mackay, and G.J. Simandl

Columbite-tantalite series and pyrochlore supergroup minerals-potential indicators in exploration for specialty metal deposits

 

G.J. Simandl, S. Paradis, K. Grattan, L. Simandl, R. Fajber, and S. Stone

Portable X-Ray fluorescence – an integral part of specialty metals

exploration strategies

 

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Most provincial geoscience data can be easily accessed over the internet in map format at:

www.MapPlace.ca and through various thematic pages at www.empr.gov.bc.ca/geology 

 

BC Geological Survey Publications are available online at

http://www.empr.gov.bc.ca/mining/geoscience/publicationscatalogue/

 

Questions or to update your contact info please contact the BC Geological Survey:

Email: Geological.Survey@gov.bc.ca    

 

Tel: 250-952-0372    Fax: 250-952-0381

 
 
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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
Release Notification 2013-12

  

August 23, 2013

 

Open File 2013-07

Map of Communities, Mineral and Coal Exploration Investment


by Jim Britton, Robin Chu, Dave Grieve, Wesley Harman, Paul Jago, Jeff Kyba, Bruce Madu and Bruce Northcote

 

Open File map 2013-7 provides a geographic representation of estimated expenditures by the mineral and coal exploration industries across British Columbia, allowing local communities to visualize investment in their regions.  The map, generated using Arc Map GIS software, is intended for anyone with an interest in mineral exploration activities, including government officials, political representatives, industry associations, students, resource planners, and the general public.

 

In contrast to previous versions, Open File 2013-07 includes data from grassroots and early stage projects, recorded in the Mineral Titles database, in addition to expenditures from major projects.  It also captures data from multiple years which, given the high annual variation in expenditures, may provide a better indication of mineral exploration interest.

 

To download high- and low-resolutions of the map, and infographic poster, and a readme text describing how the map was generated visit

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/OF2013-07.aspx

 

 

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British Columbia Ministry of Energy and Mines
Mines and Mineral Resources Division

BC Geological Survey E-NewsLetter
Release Notification 2013-11

  

July 23, 2013

 

Open File 2013-06

Ice-Flow Indicator Compilation, British Columbia


by Travis Ferbey, Holly Arnold and Adrian S. Hickin

 

This compilation consists of over 119,000 ice-flow indicators digitally captured from published and unpublished surficial geology, terrain, glacial features, and bedrock geology maps in British Columbia. Ice-flow indicators include outcrop-scale features such as striations and grooves and landform-scale features such as drumlins and flutes. These data illustrate ice-flow directions for the Cordilleran ice sheet during the Late Pleistocene.  This compilation will be of interest to those seeking to understand ice-flow histories, a critical parameter for interpreting geochemical and mineralogical data from glacially transported sediments typically collected in drift prospecting surveys.  These data will also benefit researchers who are more generally interested in landscape interactions of the Cordilleran ice sheet during the Late Pleistocene and the locations and evolution of ice divides.

 

Open File 2013-06 includes:

 

·         Sheet 1: Ice-flow compilation map; 1:1 650 000-scale

·         Sheet 2: Data sources

·         A datafile with a geodatabase of ice-flow indicators, a symbol set, and a Readme file explaining data fields in the geodatabase

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/OF2013-06_iceflow.aspx 

 

  
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

  

June 12, 2013

 

Society of Economic Geologists 2013 Conference

September 24-27, 2013


SEG & SEG Canada Foundation Conference, Whistler, BC:  Geoscience for Discovery

 

Join the Society of Economic Geologists and colleagues from industry, government and academia in Whistler to discuss exciting developments in mineral deposit research and discovery.  The conference will connect new regional and deposit concepts to the process of discovery around the northern Pacific and related regions.

 

Whistler 2013 will feature invited and submitted talks on topics that represent the leading edge of research and exploration as well as poster presentations, exhibits, numerous short courses and field trips.  Students and young professionals are encouraged to attend.

 

Society of Economic Geologists:  http://www.segweb.org/

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

  

April 3, 2013

 

Intra-oceanic subduction shaped the assembly of Cordilleran North America.  Nature, 496:50-56.  doi:10.1038/nature12019


by Sigloch, K., and Mihalynuk, M.G.

  

While developing a new tool for evaluating the evolution of resource-rich environments, Sigloch and Mihalynuk discovered a tuneable tomographic time machine capable of revealing the ancestry of the Canadian Cordillera. Work on applying the time machine to mineral exploration continues.

 

Abstract

The western quarter of North America consists of accreted terranes—crustal blocks added over the past 200 million years—but the reason for this is unclear. The widely accepted explanation posits that the oceanic Farallon plate acted as a conveyor belt, sweeping terranes into the continental margin while subducting under it. Here we show that this hypothesis, which fails to explain many terrane complexities, is also inconsistent with new tomographic images of lower-mantle slabs, and with their locations relative to plate reconstructions. We offer a reinterpretation of North American palaeogeography and test it quantitatively: collision events are clearly recorded by slab geometry, and can be time calibrated and reconciled with plate reconstructions and surface geology. The seas west of Cretaceous North America must have resembled today’s western Pacific, strung with island arcs. All proto-Pacific plates initially subducted into almost stationary, intra-oceanic trenches, and accumulated below as massive vertical slab walls. Above the slabs, long-lived volcanic archipelagos and subduction complexes grew. Crustal accretion occurred when North America overrode the archipelagos, causing major episodes of Cordilleran mountain building.

 

 

 

 

Seismic tomography of mantle structure beneath western North America in a bird’s-eye view looking northwest. This image, generated from wave data harvested from the USArray seismic experiment, portrays ancient Pacific Ocean crust extending eastward to depths of 1,800 km. Waves from over 600 earthquakes recorded by more than 1000 seismic stations were used to compute this 3D reconstruction of the deep subsurface. Colour boundaries represent depth contours of 200 km. The surface topography is rendered in shades of brown, green, and blue.

 

Online publication

http://www.nature.com/nature/journal/v496/n7443/full/nature12019.html

 

News and commentary

International Innovation, June 2013 issue, p6. Mountain building

http://www.research-europe.com/magazine/REGIONAL/NA13/index.html

 

CBC Radio: Quirks and Quarks interview (Bob McDonald) with Mitch Mihalynuk, first aired Saturday, April 6, 2013.
Podcast segment runs from 25:30 to 33:30 min.

http://www.cbc.ca/quirks/

 

Nature News: How the West was built, by Alexandra Witze

http://www.nature.com/news/how-the-west-was-built-1.12724

 

Nature News and Views: Western North America's jigsaw, by Saskia Goes

http://www.nature.com/nature/journal/v496/n7443/full/496035a.html

 

Science News: How the West was done, by Erin Wayman

http://www.sciencenews.org/view/generic/id/349343/description/How_the_West_was_done

 

Discover Magazine: How the West was formed, by Gemma Tarlach

http://blogs.discovermagazine.com/d-brief/2013/04/03/new-evidence-of-more-complicated-geology-for-the-really-old-west/#.UV3G-zePs1Q

 

Science Daily News: Rocky Mountains originated from previously unknown oceanic plate

http://www.sciencedaily.com/releases/2013/04/130403141402.htm

 

Earth pages: Cordilleran terrane accretion in western North America, by Steve Drury

http://earth-pages.co.uk/

 

Ludwig-Maximilians-Universität München: Constructive collisions

http://www.en.uni-muenchen.de/news/newsarchiv/2013/f-m-28-13.html

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-10

  

March 19, 2013

 

Open File 2013-5

Bedrock Geology between Thuya and Woodjam Creeks, south-central British Columbia

NTS 92P/7,8,9,10,14,15,16; 93A/2,3,6


by P. Schiarizza, S. Israel, S. Heffernan, A. Boulton, J. Bligh, K. Bell, S. Bayliss, J. Macauley, B. Bluemel, J. Zuber, R.M. Friedman, M.J. Orchard and T.P. Poulton

 

The Thuya Creek – Woodjam Creek map area encompasses about 5400 square kilometres, mainly in the Shuswap and Quesnel highlands and adjacent Fraser and Thompson plateaus. The geology is based on fieldwork conducted between 2000 and 2008, and integrates, with revisions, the interpretations presented in Open File maps 2002-4 (Nehalliston Plateau), 2002-15 (Clearwater-Bowers Lake), 2006-8 (Canim Lake), 2007-3 (Hendrix Lake), 2008-5 (Timothy Lake), and 2009-3 (Murphy Lake).

The area is underlain mainly by Mesozoic rocks of the Quesnel magmatic arc, including volcanic, volcaniclastic, and sedimentary rocks of the Nicola Group, which is separated into several regionally significant subdivisions. Associated plutonic rocks include a Late Triassic monzodiorite suite, Late Triassic to Early Jurassic calc-alkaline rocks of the Takomkane and Thuya batholiths, Early Jurassic Alaskan-type ultramafic-mafic complexes, and small stocks of Early Jurassic diorite, monzonite and quartz monzonite. The map area also includes Early Cretaceous granitic plutons, Eocene volcanic rocks of the Kamloops Group, Neogene basalt of the Chilcotin Group, and small exposures of Quaternary basalt that are part of the Wells Gray volcanic field.

 

Important mineral occurrences include porphyry Cu-Au deposits associated with the Late Triassic monzodiorite suite, porphyry Cu-Mo-Au deposits associated with Early Jurassic calc-alkaline plutons, Cu-Au skarns associated with Early Jurassic diorite, and Mo-W deposits associated with Early Cretaceous granitic plutons.

 

Sheet 1: Geological map; 1:100 000-scale.

Sheet 2: Cross sections; 1:100 000-scale.

Sheet 3: Map of mineral occurrences, geochemical sample locations, fossil dates and isotopic dates; 1:100 000-scale.

Sheet 4: Tables of mineral occurrences, geochemistry, fossil ages, and isotopic ages.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/2013-5.aspx

 

 

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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-9

  

March 6, 2013

 

GeoFile 2013-02

The Lonnie Niobium Deposit and its Relationship to Metamorphism, British Columbia, Canada

by H.M. Reid and G.J. Simandl, F. Ferri and J. Veltheer

 

The Lonnie Nb deposit is spatially associated with the Wolverine Fault, which is in turn related to the Manson Creek Fault system.  The Lonnie deposit is the third most developed Nb prospect in British Columbia.  In the larger Aley Carbonatite and Upper Fir deposits, the Nb and Nb+/- Ta zones are carbonatite-hosted.  Historical work done on the Lonnie deposit suggests that the highest Nb grades are associated with quartz-free feldspathic rocks; nevertheless, carbonatite (metacarbonatite) zones also contain significant concentrations of Nb.  Limited sampling, carried out in 2012, agrees with historical findings in these respects.  It also indicates that the metacarbonatites have similar chondrite-normalized REE patterns to quartz-free feldspathic rocks, fenites, and nearby outcropping limestone; however, they have the highest REE concentrations.  Fenitization extends for more than 30 metres from the complex southwestward into the host rock, perpendicularly to the strike of the Lonnie mineralization and the projection of the Wolverine Fault.  Carbonatite emplacement predates 4 periods of tectonic activity and the upper-amphibolite grade metamorphic climax.  Pyrochlore is the main Nb-bearing mineral within aegirine-bearing metacarbonatite; however, it is absent, or a trace constituent in quartz-free feldspathic rocks - suggesting that Nb mineralization is present as columbite-series minerals or fersmite.  Microprobe analysis is needed to confirm the presence and nature of these ore minerals.  The adjusted Wolverine Fault Zone, as shown here, is probably the main Nb metalotect in the area; it aligns with a recently-available magnetic survey.  Geochemical anomalies identified by Rara Terra Minerals Corp. at the Vergil carbonatite complex also appear to be located on the re-interpreted projection of the Wolverine Fault.

 

Poster presented at the annual Mineral Exploration Roundup Conference, sponsored by the Association for Mineral Exploration British Columbia (AMEBC) in January, 2013.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2013-2.aspx

 

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-8

  

February 21, 2013

 

Information Circular 2013-02

British Columbia Coal Industry Overview 2012

 

British Columbia's coal industry was busy in 2012. Production tonnages, exploration expenditures, and tenure applications all reached record levels. The estimated total coal output was over 30 million tonnes, which accounted for about $5.1 billion of the $7.4 billion in production revenues from all mines in the province. Major markets for British Columbia coal include Asian countries, notably Japan, China, South Korea and India, and countries in South America and Europe. Looking forward, new mine proposals are being evaluated, and several port facilities are planning to increase export capacity.

 

This booklet provides a snapshot of the coal industry in British Columbia, including sections on trends, resources, mining, exploration, the tenure system, sources of information, and contacts in government and industry.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/InformationCirculars/Pages/2013-2.aspx

 

British Columbia Geological Survey Coal Page

http://www.empr.gov.bc.ca/Mining/Geoscience/Coal/Pages/default.aspx

 

 

 

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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-7

  

February 18, 2013

 

GeoFile 2013-06:  Determination of major and trace element concentrations in Canadian sediment reference samples using portable energy-dispersive X-ray fluorescence (ED-XRF) spectrometer and implications for geochemical surveys


by A.S. Rukhlov

 

Concentrations of 24 elements (S, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Rb, Sr, Zr, Mo, Sn, Cs, Ba, W, Pb, Th, U) were determined in 12 Canadian sediment reference samples using a portable energy-dispersive X-ray fluorescence (ED-XRF) spectrometer and Compton scatter radiation for matrix correction. The reference samples represent till, stream sediments, and lake sediments that have been widely used as quality-control standards in geochemical surveys. A total of 11 international certified reference materials were analyzed to calibrate the ED-XRF spectrometer using error-weighted least-squares regression of the measured and the recommended data. The ED-XRF results are consistent with the published data within the uncertainties for V, Cr, Ni, Cu, Zn, As, Rb, Sr, Zr, Mo, W, and Pb in the reference sediment samples. Magnitude of bias for S, Ca, K and Ba concentrations appears to correlate with high loss-on-ignition (mainly H2O) contents (up to 44 wt. %) in these samples. Concentrations of Ti, Mn and Fe in all samples show small but significant systematic error, whereas Cs, Ba, Th and U concentrations may reflect spectral interferences in some samples. Concentrations of Co, Ag, Cd, Sb, Au, and Hg in the analyzed reference samples are all below the detection levels of the portable ED-XRF. Precision of the ED-XRF analyses is better than 6% (average 1.6%) at the 2σ level for most of the trace elements, except Cs. The portable ED-XRF spectrometer, with Compton scatter normalization for matrix correction, can be used for precise and accurate analysis of till, stream- or lake-sediment samples in mineral exploration, geochemical mapping and environmental monitoring. Compared to other analytical methods, the technique is fast, non-destructive, and requires less sample preparation.

 

Poster presented at the annual Mineral Exploration Roundup Conference, sponsored by the Association for Mineral Exploration British Columbia (AMEBC) in January, 2013.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2013-06.aspx

 

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-6

  

February 1, 2013

 

GeoFile 2013-01:  Geochemistry of Metabasalts from the Knob Hill Complex and Anarchist Group in the Paleozoic basement to southern Quesnellia


by N.W. Massey and J. Dostal

 

GeoFile 2013-1 supplements the geological synthesis in Massey and Dostal (2013), by providing spreadsheets containing a complete geochemical dataset from the Knob Hill Complex and Anarchist Group and additional geochemical plots.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2013-1.aspx

 

Massey, N.W.D. and Dostal, J., 2013. Geochemistry of Metabasalts from the Knob Hill Complex and Anarchist Group in the Paleozoic basement to southern Quesnellia.  In:  Geological Fieldwork 2012, British Columbia Ministry of Energy, Mines and Natural Gas, British Columbia Geological Survey Paper 2013-1, pp. 45-52.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/Fieldwork/Documents/2012_Fieldwork/04_Massey%20and%20Dostal.pdf

 

The Knob Hill Complex and Anarchist Group constitute part of the Paleozoic basement to southern Quesnellia.  These units occupy adjacent northward-dipping, south-vergent thrust sheets extending along the Canada-Washington State border.  Metabasalts in both units are tholeiitic to transitional or alkalic, comprising three magma types.  The ophiolitic Knob Hill Complex contains rocks of predominantly island arc affinity (IAT), with local MORB and E-MORB varieties.  They probably formed by subduction-related rifting processes, but the precise setting remains unclear.  The Anarchist Group metabasalts display predominantly within-plate E-MORB geochemical traits; local IAT and MORB signatures are indistinguishable from those in the Knob Hill Complex.  The basalt geochemistry suggests that the two units share a magmatic history and may have once been contiguous, with the Anarchist Group having formed off axis relative to spreading represented by the Knob Hill Complex.

 
 
 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-5

  

January 28, 2013

 

Open File 2013-04:  British Columbia Digital Geology

by Y. Cui, F. Katay, J.L. Nelson, T. Han, P.J. Desjardins, and L. Sinclair

 

Open File 2013-4 is the data source used to create the digital BC Geological Map, which is provided by the British Columbia Geological Survey to clients in mineral exploration, mining, land-use planning, and other areas.

 

This digital data release consists of integrated datasets including: geological contacts that delineate bedrock units and structures as linear features associated with descriptions or attributions; and bedrock as polygons formed from the geological contacts and attributed with descriptions of the geological units.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/2013-4.aspx

 

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-4

  

January 28, 2013

 

GeoFile 2013-05:  Lithogeochemical Data from Porphyry Environments between Princeton and Merritt

by M.G. Mihalynuk and J.M. Logan

 

GeoFile 2013-5 presents analytical results from samples collected during fieldwork conducted as part of an ongoing Porphyry Copper-Gold project.  This component of the project focused on the geological setting of porphyry and related mineralization between Princeton and McLure.  Included are a text document outlining the contents, and a datafile.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2013-5.aspx 

 

 
 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-3

  

January 28, 2013

 

Open File 2013-02: Regional to Property-Scale Drift Prospecting Surveys in British Columbia

Open File 2013-03:  Micro- to Macro-Scale Ice-Flow Indicators for the Interior Plateau, Central British Columbia

 

Open File 2013-02: Regional to Property-Scale Drift Prospecting Surveys in British Columbia

by Travis Ferbey


Presented here is a geographically referenced list of drift prospecting surveys that have been conducted in British Columbia.  A list of topical studies and special volumes that are relevant to drift prospecting in British Columbia have also been included.  These studies and geochemical data will be of interest to explorationists and researchers who are assessing the effectiveness of drift prospecting surveys for their own exploration or research program, who are preparing to design and implement their own survey, or who have generated geochemical data on drift samples and are looking for data from orientation surveys for comparison.

 

This map and list of references is intended to provide a way of quickly identifying drift prospecting studies and data that are either geographically or topically of interest to those working in British Columbia.  This publication will be updated annually; we would appreciate being notified of errors or omissions.

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/2013-2.aspx

 

Open File 2013-03:  Micro- to Macro-Scale Ice-Flow Indicators for the Interior Plateau, Central British Columbia

by Travis Ferby and Holly Arnold

 

This compilation consists of about 89,000 ice-flow indicators digitally captured from published and unpublished surficial geology, terrain, and glacial features maps for the Interior Plateau physiographic region.  Ice-flow indicators include micro-scale features such as striae and rat tails to macro-scale features such as drumlins and flutes.  These data illustrate major ice-flow directions for the Cordilleran ice sheet during the Late Pleistocene.  This compilation will be of interest to those seeking to understand ice-flow histories, a critical parameter for interpreting geochemical and mineralogical data from glacially transported sediments typically collected in drift prospecting surveys.  These data will also benefit researchers who are more generally interested in landscape interactions of the Cordilleran ice sheet during the Late Pleistocene and the locations and evolution of ice divides.


http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/2013-3.aspx

 

 
  
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

  

January 25, 2013

 

New Documents to Property File and New Occurrences to MINFILE

 

Property File

Property File is a collection of about 100,000 documents, most of which were donated by industry or collected by British Columbia Geological Survey (BCGS) staff.  These documents extend back over 150 years and include hand-drawn maps, drill core records, correspondence, thin sections, reports and prospectuses.  Given increasing commodity prices and expanding infrastructure, uneconomic past discoveries may become future exploration targets.

 

Since 2007, the British Columbia Geological Survey, through an ongoing project managed by Purple Rock Inc., has been updating and providing online access to the Property File database.  Recently, more than 14,000 new documents were added.  Notable additions include 3850 documents from collections donated by the estates of Dennis Gorc, W.G. Hainsworth, R.V. Kirkham, and W.M. Sharp.  Other recent contributions include scans of 875 RGS location maps (funded by Geoscience BC), more than 3000 documents from Tom Schroeter project files, 6000 more Rimfire documents and a collection of 680 University of British Columbia undergraduate theses and reports from the 1920s and 1930s.

 

Over 44,000 Property File documents are available for free download at

http://propertyfile.gov.bc.ca

 

Individuals and companies interested in donating to Property File, please contact Kirk Hancock.  

 

MINFILE

Recent review, indexing, and scanning of Property File documents identified over 60 new occurrences for the MINFILE database.  MINFILE contains geological, location, and economic information on more than 13,070 mines, deposits, and occurrences in BC, including metallic and industrial minerals and coal.  The BCGS has been allocated extra funding to update MINFILE and to add new discoveries by reviewing mineral assessment reports, recent publications, press releases, Property File and company websites.  In the last year, more than 1000 occurrences were updated and 780 occurrences were added by BCGS staff and contractors (Total Earth Science Services and Purple Rock Inc.).

 

To access MINFILE click:  http://minfile.gov.bc.ca

 

 
 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-2

  

January 25, 2013

 

British Columbia Geological Survey GeoFile 2012-09

Geological Survey of Canada Popular Geoscience 98E

 

Southern British Columbia: Geological Landscapes Highway Map

 

by Turner, R.J.W., Anderson, R.G., Franklin, R. Ceh, M., Hastings, N., and Wagner, C.L., 2012.  

 

British Columbia has a rich geological heritage extending back in time for over 2.3 billion years.  Because of a long history mountain-building processes that continue today, much of this geoheritage is well exposed.  The map is accessible to anyone with an interest in natural history.  With over a hundred photographs of roadside geological wonders throughout southern BC and many synoptic diagrams that illustrate basic processes and principles, the map is a self guide to many of the geological features of the southern Cordillera. 

 

   

 

The map can be downloaded in two parts (front and back) from http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2012-09.aspx

 

Digital copies can also be downloaded from the Geological Survey of Canada (GEOSCAN Natural Resources Canada)

 

French

http://geoscan.ess.nrcan.gc.ca/cgi-bin/starfinder/0?path=geoscan.downloade.fl&id=fastlink&pass=&format=FLDOWNLOADE&search=R=291881

 

English

http://geoscan.ess.nrcan.gc.ca/cgi-bin/starfinder/0?path=geoscan.downloade.fl&id=fastlink&pass=&format=FLDOWNLOADE&search=R=291880

 

Hard copies are available from:

Geological Survey of Canada

Natural Resources Canada Discovery Center,

1500-605 Robson Street

Vancouver, BC

V6B 5J3

gscvan@nrcan.gc.ca

604-666-0529

 

This map complements the Northern British Columbia Geological Landscapes Highway Map, which was released in 2007.  Turner, R.J.W., Franklin, R., Ceh, M., Evenchick, C., Hastings, N., Massey, N., and Wojdak, P., 2007.  GSC Popular Geoscience 94E; BCGS GeoFile 2007-1).  The northern map can be downloaded from http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/GeoFiles/Pages/2007-1.aspx

 

 

 
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British Columbia Ministry of Energy, Mines and Natural Gas
Mines and Mineral Resources Division
BC Geological Survey E-NewsLetter

Release Notification 2013-1

  

January 24, 2013

 

At 11:00 a.m., Monday, January 28th, the British Columbia Geological Survey will release four annual publications.

 

Please note:  the links provided below will not function until the specified hour of release.

 

Geological Fieldwork 2012: A Summary of Field Activities and Current Research

British Columbia Geological Survey Paper 2013-01

 

 

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/Fieldwork/Pages/GeologicalFieldwork2012.aspx

 

 

Provincial Summary Exploration and Mining in British Columbia in 2012
British Columbia Geological Survey Information Circular 2013-01.

by Britton, J., Chu, R., Grieve, D., Jago, P., Kyba, J., Madu, B., and Northcote, B., 2013.

 

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/InformationCirculars/Pages/IC2013-1.aspx

 

 

Operating Mines and Selected Major Exploration Projects in British Columbia, 2012

British Columbia Geological Survey Open File 2013-01.

by Britton, J., Chu, R., Grieve, D., Jago, P., Kyba, J., Madu, B., and Northcote, B., 2013.

 

 


http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/OpenFiles/2013/Pages/2013-1.aspx

 

 

Regional Geologist Summaries

Exploration and Mining in British Columbia 2012

 

 

http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/ExplorationinBC/Pages/2012.aspx

 

 

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Most provincial geoscience data can be easily accessed over the internet in map format at:

www.MapPlace.ca and through various thematic pages at www.empr.gov.bc.ca/geology 

 

BC Geological Survey Publications are available online at

http://www.empr.gov.bc.ca/mining/geoscience/publicationscatalogue/

 

Questions or to update your contact info please contact the BC Geological Survey:

Email: Geological.Survey@gov.bc.ca     Tel: 250-952-0372    Fax: 250-952-0381

  
  

 

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