| Title | Clay oncoids and crypto-microbial laminites from the Late Paleoproterozoic Manitou Falls Formation, Athabasca Basin, Saskatchewan |
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| Author | Yeo, G; Percival, J B ; Jefferson, C W; Bernier, S; Hunt, P |
| Source | Summary of investigations, volume 2, Saskatchewan Geological Survey; Saskatchewan Energy and Mines Miscellaneous Report 2002-4.2, 2002, 9 pages  Open Access |
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| Year | 2002 |
| Alt Series | Geological Survey of Canada, Contribution Series 2003292 |
| Publisher | Government of Saskatchewan |
| Document | serial |
| Lang. | English |
| Media | CD-ROM; on-line; digital |
| File format | pdf |
| Province | Saskatchewan |
| NTS | 74F/15; 74H/15 |
| Area | Hook Lake; McArthur River area; Read Lake |
| Lat/Long WENS | -109.0000 -108.5000 58.0000 57.7500 |
| Lat/Long WENS | -104.5000 -104.5000 58.0000 57.7500 |
| Subjects | surficial geology/geomorphology; general geology; laminations; stromatolites; biogenic structures; oncolites; Athabasca Basin |
| Illustrations | geological sketch maps; logs; cross-sections; photographs; photomicrographs |
| Program | Exploration Science and Technology (EXTECH IV) Initiative, 2000-2003 |
| Released | 2002 01 01 |
| Abstract | Bean-sized, laminated structures from basal Manitou Falls strata near Hook Lake in the Athabasca Basin are reinterpreted to be clay oncoids which grew in ephemeral pools or lakes in a flashy river
system. Comparable microlaminated structures in microcrystalline quartz from the McArthur River area are also of probable microbial origin. These structures add to a growing body of evidence for life in Proterozoic non-marine environments and
contribute to our understanding of regional paleo-environments in early Manitou Falls time. |
| GEOSCAN ID | 215131 |
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