The ups and downs of the Canadian Shield. 2, Preliminary results of apatite fission-track analysis from a 3.6 km vertical profile, LaRonde mine, Quebec / N. Pinet.: M183-2/8385E-PDF
"The low-temperature (120-60°C) thermal history of eight samples from a 3.6 km vertical depth profile in the LaRonde Mine (Archean Abitibi greenstone belt, Quebec) has been investigated using apatite fission-track (AFT) analysis. All samples correspond to greywackes of the Cadillac Formation. The AFT ages show a clear younging relationship with depth (increasing temperature), as expected for samples that maintained constant relative depths over time. Ages vary from 413 ± 51 Ma near the surface, to 148.5 ± 6.3 Ma for the deepest sample. Forward and inverse modeling indicate that a scenario with a constant temperature or minor heating during the Paleozoic better accounts for the fission track length distributions than a scenario with a constant cooling rate. These results support the possibility that the Abitibi region was covered by a sedimentary succession of moderate thickness during the Paleozoic"--Abstract, p. 2.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.859096&sl=0
| Department/Agency | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Title | The ups and downs of the Canadian Shield. 2, Preliminary results of apatite fission-track analysis from a 3.6 km vertical profile, LaRonde mine, Quebec / N. Pinet. |
| Series title | Open file ; 8385 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographical references (p. 20-22). |
| Publishing information | [Ottawa] : Natural Resources Canada, 2018. |
| Author / Contributor | Pinet, N. |
| Description | 43 p. : col. charts, col. ill., maps (some col.). |
| Catalogue number |
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| Departmental catalogue number | 308067 |
| Subject terms | Shields (Geology) Fission track dating Québec (Province) |
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