Quadrangle map, 1:250,000-scale | AD |
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Quadrangle map, 1:63,360-scale | C-2 |
Latitude | 51.9308 |
Longitude | -176.6239 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | On shore of Andrew Lake, approximately 2 km northeast of its southernmost point. Possibly additional mineralization extents along a N 20 E extending linear to the east. |
Geologic descriptionFine-grained lithic sandstone of the Andrew Lake Formation overlies volcanic breccia and massive flows (?). A linear, possibly a fault, extends northeast (about N 20 E) from the locality. Other samples of volcanic rocks collected in the vicinity of this linear were also weakly anomalous in Zn and Au. | |
Geologic map unit | (-176.626383081398, 51.9294208446332) |
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Age of mineralization | Tertiary? |
Alteration of deposit | Chloritization. |
Workings or exploration | A single sample of the sandstone collected during brief U.S. Geological Survey reconnaissance studies in 1993 yielded 120 ppm Cu, 110 ppm Zn, and 4 ppb Au. Volcanic rock samples yielded 4 ppb Au (93TL 102c) and up to 120 ppm Zn (samples 93AWs 12 and 13). |
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Indication of production | None |
MRDS Number | A106035 |
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Reporters | F.H. Wilson, T.D. Light |
Last report date | 2/22/1996 |