Skip to main content

Skip to navigation

The access keys for this page are:

Ministry of Energy Mines and Responsible for Core Review



NTS 104N - Atlin
51 / GSC OF 517 / NGR 28 / GSC OF 733

The Atlin (NTS 104N) reconnaissance-scale stream sediment and water survey was completed in 1977 and the resulting field and analytical data were released in 1978. A total of 933 sediment and 933 water samples were collected from 882 sample sites. The survey also included the collection of lake sediment and water samples from 160 sites.

As part of the RGS Archive Program, 901 archived sediment pulps were re-analyzed by epi-thermal INAA and this new data along with original survey results were re-published in 1991.

Original Analytical Data 
Sediments Sediments
element method detection limit element method detection limit
Zinc AAS 2 ppm Iron AAS 0.02%
Copper AAS 2 ppm Molybdenum AAS 1 ppm
Lead AAS 2 ppm Uranium NADNC 0.5 ppm
Nickel AAS 2 ppm
Cobalt AAS 2 ppm
Silver AAS 0.2 ppm Waters
Manganese AAS 5 ppm element method detection limit
Tin AAS 2 ppm pH GCE 0.1
Mercury AAS-F 10 ppb Uranium LIF 0.05 ppb
Tungsten COLOR 2 ppm Fluoride ION 20 ppb
INAA Data 
element detection limit element detection limit element detection limit
Gold 2 ppb Hafnium 1 ppm Sodium 0.10
Antimony 0.1 ppm Iron 0.20 Tantalum 0.5 ppm
Arsenic 0.5 ppm Lanthanum 5 ppm Terbium 0.5 ppm
Barium 100 Lutetium 0.2 Thorium 0.5
Bromine 0.5 ppm Molybdenum 1 ppm Tungsten 2
Cerium 10 Nickel 10 ppm Uranium 0.2
Cesium 0.5 Rubidium 5 ppm Ytterbium 2
Chromium 5 ppm Samarium 0.5 Zirconium 200 ppm
Cobalt 5 Scandium 0.5  


The 1977 survey was conducted by the Geological Survey of Canada (GSC) in conjunction with the British Columbia Ministry of Energy, Mines and Petroleum Resources (MEMPR) under the Canada-British Columbia Uranium Reconnaissance Program.


E.H.W. Hornbrook directed GSC activities and N.C. Carter directed MEMPR activities. Contracts were let to the following companies for sample collection, preparation and analysis and were managed by staff of the GSC and MEMPR.


COLLECTION:  Stokes Exploration Management Company Ltd., Vancouver, B.C.
S.B. Ballantyne (GSC) and T. Kalnins (MEMPR)
PREPARATION:  Golder Associates, Ottawa, Ont.
J.J. Lynch (GSC)
ANALYSIS: Chemex Laboratories Ltd., North Vancouver, B.C. (Stream Sediments)
Atomic Energy of Canada Ltd., Ottawa, Ont. (Stream Waters)
J.J. Lynch (GSC) and W.M. Johnson (MEMPR)

Initiated in 1990, the RGS Archive Program was conducted by the MEMPR and was funded in part by the Canada/British Columbia Mineral Development Agreement (1985-1990). P.F. Matysek and W. Jackaman directed the activities of MEMPR staff and managed the following sample preparation and analytical contracts.


PREPARATION: Rob Phillips, Ottawa, Ont.  
ANALYSIS: Becquerel Laboratories, Mississauga, Ont.