| Title | Study of sedimentary rock xenoliths from kimberlites on Hall Peninsula, Baffin Island, Nunavut |
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| Author | Zhang, S; Pell, J |
| Source | Canada-Nunavut Geoscience Office, Summary of Activities 2012, 2013 p. 107-112  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2013 |
| Alt Series | Earth Sciences Sector, Contribution Series 20120335 |
| Publisher | Canada-Nunavut Geoscience Office |
| Document | serial |
| Lang. | English |
| Media | paper |
| File format | pdf |
| Province | Nunavut |
| NTS | 25O/13; 25O/14; 25O/15; 25O/16; 25P/13; 25P/14; 26A/04; 26B |
| Area | Baffin Island; Hall Peninsula |
| Lat/Long WENS | -68.5000 -65.0000 65.0000 63.5000 |
| Subjects | sedimentology; economic geology; sedimentary rocks; shales; dolostones; breccias; xenoliths; kimberlites; diamond; mineral potential; overburden thickness; Conodonts; Chidliak kimberlite province;
Paleozoic |
| Illustrations | location maps; photomicrographs |
| Program | Canada-Nunavut Geoscience Office, Funding Program |
| Released | 2013 01 01 |
| Abstract | This study is part of the Canada-Nunavut Geoscience Office's Hall Peninsula Integrated Geoscience Program, a multiyear bedrock and surficial geology mapping program with associated thematic studies.
Hall Peninsula, located on southeastern Baffin Island, Nunavut, hosts the newly discovered Chidliak kimberlite province. Presently, this area lacks Phanerozoic sedimentary cover; however, Late Ordovician and Early Silurian microfossils (conodonts)
have been recovered from carbonate xenoliths preserved in the Upper Jurassic-Lower Cretaceous kimberlites. The well-preserved conodont faunas provide reliable evidence for estimating 1) the thickness of Lower Paleozoic sedimentary cover prior to the
intrusion of the kimberlites; and 2) the variations in temperature recorded by conodonts preserved in sedimentary rock xenoliths within the same kimberlite, and among the different kimberlites.
The project activities include 1) collecting
sedimentary rock xenoliths from the drillholes intersecting kimberlites in the Chidliak-Qilaq area; 2) processing the carbonate xenoliths for conodonts; 3) estimating the total thickness of Lower Paleozoic sedimentary cover and the degree to which
the xenoliths were heated by the kimberlites, using the conodonts' age and colours; and 4) obtaining information about the Paleozoic petroleum system in the nearby Baffin Bay area by studying sedimentary rock types and collecting Rock-Eval 6 data.
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| GEOSCAN ID | 292118 |
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