Regional Lake Sediment and Water Geochemistry of the Northern Kechika Trough, British Columbia (NTS 94M
Regional Lake Sediment and Water Geochemistry of the Northern Kechika Trough, British Columbia (NTS 94M

Author: British Columbia. Geological Survey Branch

Publisher:

Published: 1997

Total Pages: 30

ISBN-13: 9780772632968

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Presents new analytical data for 44 different elements from a regional lake sediment and water geochemistry survey conducted along a northwest-southeast trending strip about 150 kilometres long and 30 kilometres wide, located immediately south of the British Columbia-Yukon border at the northern terminus of the Rocky Mountains. Samples were collected for analysis from 445 sites in the area and analyzed by atomic absorption spectroscopy and instrumental neutron activation analysis. Preliminary discussion of results is presented for such elements as zinc, lead, and barium. New areas are outlined for prospective sedimentary exhalative types of zinc-lead-barium deposits. The bulk of the report contains data tables and dot maps of element concentrations.

Regional Lake Sediment and Water Geochemistry of Part of the Fort Fraser Map Area, British Columbia (NTS 93K/9, 10, 15 an 16)
Regional Lake Sediment and Water Geochemistry of Part of the Fort Fraser Map Area, British Columbia (NTS 93K/9, 10, 15 an 16)

Author: Stephen J. Cook

Publisher: British Columbia, Geological Survey Branch

Published: 1997-01-01

Total Pages: 33

ISBN-13: 9780772631367

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The Pinchi Lake regional lake sediment and water geochemistry survey described in this report covers an area of perceived high mineral potential in a region where exploration has previously been limited by extensive drift cover, poor exposures, and an insufficient geological database. Survey investigators collected lake sediments and waters from 413 sites in the study area and analyzed for 15 elements by atomic absorption spectroscopy and for a further 25 elements by instrumental neutron activation analysis. This report describes the survey areas (location, access, physiography, surficial and bedrock geology, mineral deposits), survey methodology, and quality control procedures, and presents a preliminary interpretation of the data obtained, notably for gold. New areas for prospective porphyry-style gold/copper and molybdenum deposits are outlined, and recommendations are provided for gold exploration in the study area. Appendices contain analytical data.

Geology and Mineral Deposits of the Northern Kechika Trough Between Gataga River and the 60th Parallel
Geology and Mineral Deposits of the Northern Kechika Trough Between Gataga River and the 60th Parallel

Author: Filippo Ferri

Publisher: British Columbia, Ministry of Energy and Mines

Published: 1999

Total Pages: 142

ISBN-13:

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The Kechika Trough in the Rocky Mountains of northern British Columbia is host to numerous sedimentary exhalative barite-lead-zinc deposits collectively known as the Gataga mineral district. This report summarizes the bedrock mapping component of a multi-disciplinary study of the northern part of this basin. Field data for this component were collected during the summers of 1994 to 1996. Sections of the report describe the study area's lithologic units (Proterozoic to Cambrian strata, intrusives), geologic structure (faults, folds, cleavage), metamorphism, and economic geology (mineralization, skarns, veins, sulphides).