|
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 |
| 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 |
|
|
|
|
Acknowledgements
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. | | |
