| mhorn | Дата: Saturday, 14.12.2013, 08:28 | Сообщение # 1 |
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| Schlagintweit F., Enos P. (2013) Uppermost Jurassic? - Neocomian shallow-water carbonates of the Blake Nose, USA: DSDP site 392a revisited // Acta Palaeontologica Romaniae v. 9 (1), P.39-56
http://www.geo-paleontologica.org/actapal....ose.pdf
Upper Jurassic (?) to Valanginian shallow-water limestones were recovered at DSDP Sites 390 and 392, on the Blake Nose at the seaward edge of the Blake Plateau in 1975. Re-examination of the microfacies and the benthic foraminiferal and calcareous algal biota suggests a possible Late Jurassic age for the oldest limestones. The widely recognized intra-Valanginian unconformity extends to the northeastern margin of the Late Jurassic-Early Cretaceous carbonate megaplatform in the western Atlantic.
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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