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Ministry of Energy Mines and Responsible for Core Review



NTS 114O/P - Yakutat/Tatshenshini

BCGS GF2006-4 /

Click Here To View 114P in MapPlace

The Yakutat/Tatshenshini River (NTS 114O/P) reconnaissance-scale stream sediment and water survey was completed in 1992 and the resulting field and analytical data were released in 2006. A total of 890 sediment and 873 water samples were collected from 839 sample sites.

BC Geological Survey GeoFile 2006-4 was published as part of the British Columbia Regional Geochemical Survey (RGS) Program.  This Geofile includes analytical data and field observations compiled from a reconnaissance-scale stream sediment and water survey conducted in NTS map sheets 114O - Yakutat and 114P - Tatshenshini during the 1992 field season.  A total of 890 sediment and 873 water samples were collected from 839 sample sites.

Analytical Data 
Sediments Sediments
element method detection limit element method detection limit
Zinc AAS 2 ppm Antimony AAS-H 0.2 ppm
Copper AAS 2 ppm Iron AAS 0.02%
Lead AAS 2 ppm Molybdenum AAS 1 ppm
Nickel AAS 2 ppm Vanadium AAS 5 ppm
Cobalt AAS 2 ppm Loss on Ignition GRAV 0.10%
Silver AAS 0.2 ppm
Manganese AAS 5 ppm Waters
Fluorine ION 40 ppm element method detection limit
Cadmium AAS 0.2 ppm pH GCE 0.1
Arsenic AAS-H 0.5 ppm Sulphate TURB 1 ppm
Mercury AAS-F 10 ppb Uranium LIF 0.05 ppb
Bismuth AAS-H 0.2 ppm Fluoride ION 20 ppb
INAA Data (thermal))
element detection limit element detection limit element detection limit
Gold 2 ppb Hafnium 1 ppm Scandium 0.1 ppm
Antimony 0.1 ppm Iron 0.01% Sodium 0.01%
Arsenic 0.5 ppm Lanthanum 0.5 ppm Tantalum 0.5 ppm
Barium 50 ppm Lutetium 0.05 ppm Terbium 0.5 ppm
Bromine 0.5 ppm Molybdenum 1 ppm Thorium 0.2 ppm
Cerium 3 ppm Nickel 10 ppm Tungsten 1 ppm
Cesium 1 ppm Rubidium 15 ppm Uranium 0.5 ppm
Chromium 5 ppm Samarium 0.1 ppm Ytterbium 0.2 ppm
Cobalt 1 ppm  


The 1992 survey was managed and funded by the British Columbia Ministry of Energy, Mines and Petroleum Resources (MEMPR) as part of the Regional Geochemical Survey Program and is a contribution to the Corporate Resource Inventory Initiative (CRII).


P.F. Matysek and W. Jackaman coordinated the operational activities of contract and MEMPR staff. W. Jackaman monitored the field program and coordinated the production of the data.

Contracts were awarded to the following companies for sample collection, preparation and analysis.

COLLECTION: McElhanney Engineering Services Ltd., Surrey, B.C.
PREPARATION: Rossbacher Laboratories Ltd., Burnaby, B.C.

Barringer Laboratories Ltd., Calgary, Alta. (Sediments)
Activation Laboratories Ltd., Ancaster, Ont. (Sediments)
Chemex Laboratories Ltd., North Vancouver, B.C. (Waters)