| Title | Conodonts and their colour alteration index values from carbonate xenoliths in four kimberlites on Hall Peninsula, Baffin Island, Nunavut |
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| Author | Zhang, S; Pell, J |
| Source | Canada-Nunavut Geoscience Office Summary of Activities 2016; Canada-Nunavut Geoscience Office, Summary of Activities (2016), 2016 p. 1-12  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2016 |
| Alt Series | Earth Sciences Sector, Contribution Series 20160225 |
| Publisher | Canada-Nunavut Geoscience Office |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Nunavut |
| NTS | 26B |
| Area | Hall Peninsula; Baffin Island |
| Lat/Long WENS | -68.0000 -66.0000 65.0000 64.0000 |
| Subjects | general geology; stratigraphy; drillholes; kimberlites; conodonts; colour alteration index; Chidliak kimberlite province; Precambrian; Paleozoic |
| Illustrations | location maps; satellite imagery; geological sketch maps; photographs |
| Program | Canada-Nunavut Geoscience Office, Funding Program |
| Released | 2016 01 01 |
| Abstract | Hall Peninsula, located on southeastern Baffin Island, Nunavut, is host to the newly discovered Chidliak kimberlite province. The region is underlain by Precambrian basement and the original Paleozoic
cover has been removed by erosion. The earlier presence of Paleozoic carbonate strata is indicated by the presence of carbonate xenoliths - many of which contain numerous conodont microfossils - Lin the Chidliak kimberlites. The present study is a
continuation of work done on conodonts recovered fromHall Peninsula kimberlites and their colour alteration index (CAI) values. This paper summarizes the results recovered from12 drillholes in 4 kimberlites, including 10 new drillholes in 3 of the 11
kimberlites previously studied and 2 drillholes in a kimberlite that have not been previously reported on. Of the 59 collected samples, 43 contain conodonts, from which nearly 600 identifiable conodont specimens have been recovered with conodont CAI
values ranging from 4 to 8. These provide additional data to understating the kimberlite emplacement processes and cooling history. |
| Summary | (Plain Language Summary, not published)
The Chidliak kimberlite province has been discovered on the Hall Peninsula, southern Baffin Island, Nunavut. All bed rocks on the Hall Peninsula are
Precambrian metamorphic rocks, as the original Paleozoic cover has been removed by erosion. The earlier presence of Paleozoic carbonate strata is indicated by the presence of carbonate xenoliths, many of which contain numerous conodont microfossils,
in the Chidliak kimberlites. The present study is a continuation of work done on conodonts recovered from the Hall Peninsula kimberlites and their Color Alteration Indies (CAI). This report summaries the results recovered from 12 drill holes in four
kimberlites, including 10 new drill holes in three of the 11 kimberlites previously studied and two in a kimberlite that have not been reported on. Of the 59 collected samples, 43 yield conodonts, from which nearly 600 identifiable conodont specimens
have been recovered, with CAI values 4-8. These provide additional data to understating the kimberlite emplacement processes and cooling history. |
| GEOSCAN ID | 299337 |
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