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TitleTill geochemical and heavy mineral exploration methods in glaciated terrain
AuthorMcClenaghan, M B
SourceExploration 07: Exploration Geochemistry - Basic Principles and Concepts, Workshop 2, course notes; by Coker, W B; 2007 p. 23-31; 1 CD-ROM
Alt SeriesEarth Sciences Sector, Contribution Series 20070174
MeetingExploration 07, Exploration in the new Millennium, 5th Decennial International Conference on Mineral Exploration; Toronto; CA; September 8, 2007
Documentcomputer file
MediaCD-ROM; digital
File formatpdf
Subjectseconomic geology; mineralogy; geochemistry; heavy minerals; mineral assemblages; mineral deposits; mineral distribution; mineral occurrences; mineral potential; mineralization; heavy mineral analyses; indicator elements; glaciation; deglaciation; exploration; exploration methods; tills; till samples; till geochemistry; Pleistocene; ice flow; ice transport directions; ice movement directions; indicator minerals; dispersal trains; Quaternary; Cenozoic
Illustrationssketch maps; photographs; cross-sections
ProgramTargeted Geoscience Initiative (TGI-3), 2005-2010
AbstractIn glaciated terrain, mineral exploration methods include till sampling which is designed to detect clastic glacial dispersal of mineralized debris. Till is sampled from the least oxidized/weathered part of the soil profile (typically >0.75 m depth) to avoid changes in geochemistry and mineralogy due to soil formation and, in some places, contamination from mining and/or smelting. This paper reviews the methods for collection and analysis of till, focusing on indicator mineral methods and till geochemistry.