| Reference Type | Journal (article/letter/editorial) |
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| Title | K/Ar Age of Lower–Upper Cretaceous Boundary at Orphan Knoll (Labrador Sea) |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Hinte, J. E. Van | Author |
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| Adams, J. A. S. | Author |
| Perry, D. | Author |
| Year | 1975 (August 1) | Volume | 12 |
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| Issue | 8 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e75-135Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 474598 | Long-form Identifier | mindat:1:5:474598:7 |
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| GUID | 0 |
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| Full Reference | Hinte, J. E. Van, Adams, J. A. S., Perry, D. (1975) K/Ar Age of Lower–Upper Cretaceous Boundary at Orphan Knoll (Labrador Sea) Canadian Journal of Earth Sciences, 12 (8) 1484-1491 doi:10.1139/e75-135 |
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| Plain Text | Hinte, J. E. Van, Adams, J. A. S., Perry, D. (1975) K/Ar Age of Lower–Upper Cretaceous Boundary at Orphan Knoll (Labrador Sea) Canadian Journal of Earth Sciences, 12 (8) 1484-1491 doi:10.1139/e75-135 |
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| In | (1975, August) Canadian Journal of Earth Sciences Vol. 12 (8) Canadian Science Publishing |
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| Abstract/Notes | The Albian–Cenomanian of Orphan Knoll yielded unrecrystallized, unheated, autochthonous glauconite. K/Ar ages for the Lower Cenomanian samples are 100, 91, and 105 Ma (average 99), and the K/Ar age for one Upper Albian (Vraconian) sample is 96 Ma. The non-sequential results do not allow for great confidence in a precise boundary age. However, the data can be read to support the widely used assumption of −100 Ma as the age for the Albian-Cenomanian = Early-Late Cretaceous boundary. |
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