نتایج جستجو برای: lower paleocene
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Extensional processes can lead to complex crustal configuration depending on the mechanisms of lithospheric thinning and impact magmatic additions during rifting breakup. In this context, we studied Vøring volcanic passive margin offshore Norway. The evolution inner Margin is well explained by standard models lithosphere extension. However, these fail reproduce key observations at outer (volcan...
The current sedimentological and petrographical research of the Abbottabad Formation has been carried out in order to understand formation evolution Proto-Tethys Ocean during Cambrian on northern margin Indian Plate. Muzaffarabad region is located east Upper Indus Basin southern part Hazara Kashmir Syntaxis. geological history varies from Precambrian recent period. well exposed along Syntaxis a...
نظر به اهمیت کنودونتها در تقسیمات چینهنگاری پالئوزوئیک و گسترش قابل توجه نهشتههای دونین پسین و کربونیفر پیشین در منطقه کرمان سه برش چینهشناسی (حور، هوتک و شمس آباد) در شمال استان کرمان انتخاب و بویژه بر اساس کنودونتها و بقایای ماهیان مورد مطالعه قرار گرفتند. مجموعه کنودونتهای بدست آمده از برش حور شامل 20 گونه متعلق به دو جنس polygnathus و icriodus بوده و سنی معادل فرازنین پسین را نشان می...
The sulfate isotope record of marine sedimentary through time has been used successfully to determine global variations in the composition seawater sulfate. sulfur reflect changes cycle and are also closely related atmospheric oxygen cycles. However, data for Paleocene very sparse stratigraphic evolution is poorly constrained due small number samples analyzed. Yarkand Basin, as a northeastern p...
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The distribution of benthic foraminifera across the Paleocene/Eocene (P/E) Boundary of the Contessa Road section allows us to compare the response of both calcareous hyaline and Deep Water Agglutinated Foraminiferal (DWAF) assemblages to the terminal Paleocene Benthic Extinction Event (BEE). The two groups are contemporaneously affected by the terminal Paleocene events. Quantitative analysis re...
Calcareous nannofossil biostratigraphy reveals a continuous depositional record through the Upper Cretaceous‒Paleocene succession in Zagros Basin; southwest Iran (southeastern part of Neo-Tethys), especially Cretaceous‒Paleogene and Danian‒Selandian boundaries. The upper Gurpi Formation lower Pabdeh were investigated. assemblages from these formations are characterized by abundant, diverse mode...
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