| mhorn | Дата: Friday, 14.12.2012, 15:23 | Сообщение # 1 |
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| Piskunov V.K., Rud’ko N.E., Baraboshkin E.Yu. (2012) The Formation Conditions of Middle-Upper Tithonian Limestones of the Demerdzhi Plateau (Mountainous Crimea) // Moscow University Geology Bulletin, Vol.67, No.7, P. 273–281.
pdf: http://ejurassic.ucoz.ru/_fr/7/Piskunov_ea_201.pdf
As a result of a microfacies analysis of the section of MiddleUpper Tithonian Limestones of the Demerdzhi Plateau (Mountainous Crimea), 12 microfacies types of rocks were distinguished. It has been established that these microfacies types formed in the facies zones of an inner carbonate platform: the littoral, restricted and open marine and sand shoals of the margins of a carbonate platform. The sequence of the microfacies types in the vertical section corresponds to a transgressive trend with minor sealevel fluctuations of the second order. In addition, the communities of microencrusters, which played an active role in sediment stabilization and formation of small bioherms, have been studied. These communities are considered to be evidence of the shallowness of the paleobasin
Middle Jurassic - Lower Cretaceous ammonites & aptychi
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