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Ministry of Energy Mines and Responsible for Core Review
The MapPlace - Bonaparte Lake Geophysical Survey NTS 92P and 93A
(GBC Maps 2007-3-1 to 9 and 2007-4-1 to 8 / GSC OF 5488 - 5504)

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Details:  A high-resolution aeromagnetic and airborne gamma-ray spectrometric geophysical survey in the Bonaparte Lake area (parts of NTS 92P and 093A) was completed in 2006. Funding for the survey was provided by Geoscience BC, Natural Resources Canada’s Targeted Geoscience Initiative (TGI3), Candorado Operating Company Ltd., GWR Resources Inc. and Amarc Resources Ltd. Project management was undertaken by the Geological Survey of Canada. The western portion of the survey area was surveyed with a fixed-wing by Sander Geophysics Ltd., while the eastern portion was surveyed with a helicopter by Fugro Airborne Surveys. This map, in UTM Zone 10 projection, features 2 magnetic parameters, residual total magnetic field and first vertical derivative of the magnetic field, and multisensor gamma ray spectrometric geophysical data.

 

The files are available for download in various formats. Details of the aeromagnetic survey can be found in the Fieldwork 2006 article by Miles, W.F., Shives, R.B.K., Carson, J., Buckle, J., Dumont, R. and Coyle, M: Airborne Gamma-Ray Spectrometric and Magnetic Surveys over the Bonaparte Lake Area (NTS 092P), South-Central British Columbia (PDF document, 208 Kb).

View Bonaparte Lake Geophysics Map


Bonaparte Lake Geophysics Map

 

* * *AEROMAGNETIC DATA GROUPED BY SURVEY AREA* * *

The file names consist of an abbreviated survey area followed by these Data Types: ADR - natural air absorbed dose rate (nGy/h)
K - Potassium (%)
eTh - equivalent Thorium (ppm)
eU - equivalent Uranium (ppm)
RThK - eTh/K ratio
RUK - eU/K ratio
RUTh - eU/eTh ratio
Trn - Ternary radioactive element map
RTF - residual total magnetic field
VD1 - first vertical derivative of the magnetic field

Analogue and Digital Download Table
All data in UTM Zone 10 and NAD83; PNG files are also in BC Albers.
File Downloads Bonaparte East Bonaparte West Murphy Rail Rayfield Amarc
Aircraft Type and Line Spacing Data Helicopter-borne 420 metres Fixed-wing 400 metres Helicopter-borne 210 metres Helicopter-borne 210 metres Fixed-wing 200 metres Fixed-wing 200 metres
Georeferenced TIFF files BLe_tif.zip (9.4MB) BLw_tif.zip (8.7MB) Mur_tif.zip (1.3MB) Rail_tif.zip (1.5MB) Ray_tif.zip (0.5MB) Ama_tif.zip (1.2MB)
Georeferenced PNG files BLe_png.zip (19.0MB) BLw_png.zip (18.6MB) Mur_png.zip (3.2MB) Rail_png.zip (3.7MB) Ray_png.zip (1.1MB) Ama_png.zip (2.6MB)
Original Geosoft data format (.grd) BLe_grd.zip 
(15.7MB)
BLw_grd.zip (15.1MB) Mur_grd.zip (2.5MB) Rail_grd.zip (2.7MB) Ray_grd.zip (1.0MB) Ama_grd.zip
(2.2MB)

 

REFERENCES

Miles, W.F., Shives, R.B.K., Carson, J., Buckle, J., Dumont, R. and Coyle, M
: Airborne Gamma-Ray Spectrometric and Magnetic Surveys over the Bonaparte Lake Area (NTS 092P), South-Central British Columbia in Geological Fieldwork 2006, British Columbia Ministry of Energy and Mines.


 

* * * FINAL PRODUCT RELEASE * * *

 

A joint publication of seventeen 1:50,000 total field magnetic anomaly and vertical derivative maps (GSC Open Files 5488-5500 and Geoscience BC Maps 2007-3-1 to 3-9 and 2007-4-1 to 4-8) were released on April 3, 2007, to coincide with the Kamloops Exploration Group KEG conference. Each open file consists of 10 maps.

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Additionally, the digital profile and gridded data are available on-line and at no cost via the Geoscience Data Repository for Aeromagnetic Data.

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Bitmap images and PDFs of the maps will be available on-line and at no cost via the Geoscience Data Repository.

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Bitmap images and gridded data sets are also available in the table above. The data can also be viewed in the Bonaparte Lake Geophysics map in MapPlace.

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Metadata from GEOSCAN: brief, full.

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An interpretation of the aeromagnetic data by Geological Survey of Canada was undertaken and the findings reported at KEG 2007.


Publication Table
GSC Open File links to GEOSCAN metadata and GBC Map links to downloads in SID or PDF formats.
NTS sheet Name
Bonaparte Lake East (helicopter)
Bonaparte Lake West (fixed-wing)
GSC Open File Geoscience BC Map GSC Open File Geoscience BC Map
92P/1 Louis Creek 5504 2007-3-01 5497 2007-4-01
92P/2 Criss Creek     5498 2007-4-02
92P/3 Loon Lake     5503 2007-4-03
92P/6 Green Lake     5502 2007-4-04
92P/7 Bridge Lake 5488 2007-3-02 5501 2007-4-05
92P/8 Chu Chua Creek 5489 2007-3-03    
92P/9 Clearwater 5490 2007-3-04    
92P/10 Deka Lake 5492 2007-3-05 5499 2007-4-06
92P/11 100 Mile House     5500 2007-4-07
92P/14 Lac La Hache 5493 2007-3-06 5491 2007-4-08
92P/15 Canim Lake 5494 2007-3-07    
92P/16 Mahood Lake 5495 2007-3-08    
93A/3 Eagle (Murphy) Lake 5496 2007-3-09    


Digital profile and gridded data, as well as associated maps in .pdf format, area available for download free of charge from Natural Resource Canada's Geoscience Data Repository.

Customized digital data will be available for a fee from the Geophysical Data Centre (Ottawa) Telephone: (613) 995-5326; Fax: (613) 952-8987; Email: infogdc@agg.NRCan.gc.ca.