نتایج جستجو برای: neo tethys

تعداد نتایج: 14632  

Journal: :Bulletin De La Societe Geologique De France 2023

The Eocene Jahrum Formation in High Zagros was studied Kuh-e- Soukhteh and North Gahrou sections (southwest of Shahrekord region, Chahar-mahal Bakhtiari Province). This formation, composed limestone, marl, dolomitic limestone (dolostone), accumulated on a marine platform within the Neo-Tethys ocean realm. It yields rich foraminiferal fauna, which three larger benthic assemblage zones were ident...

Journal: :Geology 2022

Abstract Reconstructions of the tectonometamorphic architectures orogenic systems rely on petrogenetic indicator minerals, such as garnet, to trace transport rocks through space and time. We show results new garnet Lu–Hf geochronology inclusion U-(Th-)Pb from exhumed midcrustal metamorphic exposed in Kanchenjunga region eastern Nepalese Himalaya. Garnet three five specimens analyzed yielded pre...

Journal: :Minerals 2021

The redeposition of pristine phosphorite plays an important role in phosphorus accumulation, which created reworked extensively on the continental shelf. This paper, using geochemical analysis combined with data from petrology and diagenesis, focuses reconstruction formation processes Late Cretaceous Thaniyat deposition northwestern Saudi Arabia, is a part famous large Neo-Tethys Ocean’s deposi...

ژورنال: اقیانوس شناسی 2020

In the present study, the sediments of the Gurpi Formation in the Jafarabad section located in the southeast of Ilam were examined from the point of view of calcareous calcareous nannofossils. The sediments of the upper part of Gurpi Formation with a thickness of about 42 m are composed of limy marl sediments. In this study, 34 species belonging to 22 genera from the group of calcareous nannopl...

ژورنال: اقیانوس شناسی 2021

In the present study, the sediments of the Gurpi Formation in the Jafarabad section located in the southeast of Ilam were examined from the point of view of calcareous calcareous nannofossils. The sediments of the upper part of Gurpi Formation with a thickness of about 42 m are composed of limy marl sediments. In this study, 34 species belonging to 22 genera from the group of calcareous nannopl...

2007
Mitsuru Yamamura Hodaka Kawahata Katsumi Matsumoto Reishi Takashima Hiroshi Nishi

The deep ocean conditions and circulation during the Cretaceous have been characterized mainly by the sediments from the Tethys Sea and the proto-Atlantic Ocean, because sedimentological data from the Pacific basin from that period have been quite limited. Here we present new geochemical measurements from sediments that we collected from two sites in Hokkaido, Japan, that were presumably deposi...

Journal: :Bulletin of the mineral research and exploration 2021

Nemrut-Süphan proposed geopark area located in Eastern Anatolia, Bitlis County, between the City Center and Tatvan-Ahlat-Adilcevaz Villages which covers total of 5.300 square km. Two strato - volcano Turkey, Nemrut (2.948 meters) Süphan (4.058 mountains, are this area. The southern part consists metamorphic rocks meters, oldest strata Turkey. biggest soda lake World, Lake Van, consist eastern s...

2014
Anne Replumaz Fabio A. Capitanio Stéphane Guillot Ana M. Negredo

In order to understand the potential controls on Asian tectonics during the subduction of the Tethys and Indian lithospheres, we reconstruct the coupled subduction-continent deformation history using tomographic imaging, kinematics constraints and numerical modeling. The global P-waves tomographic images of the mantle below the India-Asia collision zone provide constraints on the deep structure...

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