The Jurassic transgression and the mid-late Jurassic succession in Milne Land, central East Greenland
Summary New ammonite finds indicate that the sea transgressed over the crystalline basement of Milne Land, East Greenland, in Boreal Bathonian time and not in Middle Oxfordian as previously thought. A coral ( Enallocoenia callomoni Beauvais) occurring in the transgressive Upper Bathonian deposits is...
| Published in: | Geological Magazine |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1980
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0016756800030442 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800030442 |
| Summary: | Summary New ammonite finds indicate that the sea transgressed over the crystalline basement of Milne Land, East Greenland, in Boreal Bathonian time and not in Middle Oxfordian as previously thought. A coral ( Enallocoenia callomoni Beauvais) occurring in the transgressive Upper Bathonian deposits is the first hermatypic coral known from the Boreal Middle Jurassic. The unusually complete Boreal Upper Callovian–Oxfordian–Kimmeridgian ammonite succession is described; the faunas include remarkable occurrences of submediterranean genera ( Hibolithes, Pachypictonia, Streblites ). Finally, the sedimentary and tectonic evolution of Milne Land and adjacent areas in Jurassic time is outlined. It is shown that the area was characterized by gentle block-faulting. |
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