Indicator mineral and geochemical signatures associated with the Sisson W-Mo deposit, New Brunswick, Canada

McClenaghan M. B.; Parkhill M. A.; Pronk A. G.; Seaman A. A.; McCurdy M. W.; Leybourne M. I.

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Indicator mineral and geochemical signatures associated with the Sisson W-Mo deposit, New Brunswick, Canada

机译：与西森W-MO沉积物，加拿大新布鲁尼克联系的指标矿物和地球化学签名

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摘要

An indicator mineral and geochemical case study was carried out around the Sisson W-Mo deposit to test modern indicator mineral and analytical methods and document glacial and fluvial dispersal from a significant W-Mo source. Indicator minerals in the 0.25 - 2.0 mm non-ferromagnetic heavy mineral fraction of till and stream sediments include the primary ore minerals scheelite, wolframite and molybdenite, as well as chalcopyrite, joseite, native Bi, bismutite, bismuthinite, galena, sphalerite, arsenopyrite, pyrrhotite and pyrite. Indicator minerals in c. 12 - 14 kg samples define glacial dispersal of at least 10 km down ice (SE) of the deposit and fluvial dispersal at least 4 km downstream. The presence of very coarse (0.5 - 2.0 mm) indicator minerals in till and stream sediments marks proximity (1 km) to the mineralized source. Indicator elements for the deposit in the 0.063 mm fraction of till, the 0.177 mm fraction of stream sediments, and in stream water include W and Mo, and various combinations of pathfinder elements Ag, As, Bi, Cd, Cu, In, Pb, Te and Zn. This list of elements is more extensive than previously identified for the Sisson deposit or other studies around W mineralization in glaciated terrain. The study demonstrates that indicator mineral methods, so well known for diamond and gold exploration, have a broader application that includes W-Mo exploration.

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来源
《Geochemistry: exploration, environment, analysis》 |2017年第4期|共17页
作者
McClenaghan M. B.; Parkhill M. A.; Pronk A. G.; Seaman A. A.; McCurdy M. W.; Leybourne M. I.;
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作者单位

Geol Survey Canada 601 Booth St Ottawa ON K1A 0E8 Canada;

New Brunswick Dept Energy &

Resource Dev Geol Surveys Branch POB 50 Bathurst NB E2A 3Z1 Australia;

New Brunswick Dept Energy &

Resource Dev Geol Surveys Branch POB 6000 Fredericton NB E3B 5H1 Canada;

New Brunswick Dept Energy &

Resource Dev Geol Surveys Branch POB 6000 Fredericton NB E3B 5H1 Canada;

Geol Survey Canada 601 Booth St Ottawa ON K1A 0E8 Canada;

Laurentian Univ Harquail Sch Earth Sci Mineral Explorat Res Ctr 935 Ramsey Lake Rd Sudbury ON P3E 2C6 Canada;

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原文格式 PDF
正文语种 eng
中图分类地球化学;
关键词
indicator minerals; till geochemistry; scheelite; molybdenite; stream sediments;

机译：指示剂矿物质;直到地球化学;硅藻土;钼;流沉积物;

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Indicator mineral and geochemical signatures associated with the Sisson W-Mo deposit, New Brunswick, Canada

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