نتایج جستجو برای: neotethys
تعداد نتایج: 121 فیلتر نتایج به سال:
Here we describe a new elasmobranch assemblage consisting of isolated dental material from the Aquitanian near-shore marine deposits Shuwayr and Warak formations at Sharbithat, in eastern Sultanate Oman. The faunal composition clearly indicates affinities to other early Miocene elasmobranch-bearing localities worldwide. This is predominantly composed large common pelagic sharks as well teeth at...
In the Cenomanian, southern passive margin of Neotethys Ocean was dominated by a giant carbonate factory. This succession is known as Sarvak Formation, significant reservoir in Iran. study focuses on detailed analysis facies variations and paleoenvironmental reconstruction, including interpretation platform types, during this time interval. Based field observations petrographical studies, 12 ha...
[1] Africa-North America-Eurasia plate circuit rotations, combined with Red Sea rotations and new estimates of crustal shortening in Iran define the Cenozoic history of the Neotethyan ocean between Arabia and Eurasia. The new constraints indicate that Arabia-Eurasia convergence has been fairly constant at 2 to 3 cm/yr since 56 Ma with slowing of Africa-Eurasia motion to <1 cm/yr near 25 Ma, coe...
This article provides a background for scientists interested in a general overview of the geology and geomorphology of Turkmenistan. The basement of Turkmenistan is a complex amalgamation of arc-related terranes developed in the Asiatic and northern Paleotethys oceanic domains during Late Paleozoic to Triassic times. A major part of the country coincides with the Turan Platform, where a thick s...
The Kuhshah ultramafic complex is located in the south-east of Sanandaj-Sirjan metamorphic zone, near the probable remnants of Neotethys plate in Iran. It consists of highly depleted harzburgites, dunites, chromitite bands and altered gabbros. The ultramafic parts have been intruded by numerous clinopyroxenite dykes and veins. In the harzburgites, there are different generations of olivine, ort...
Abstract. The Middle Eocene Climatic Optimum (MECO), a ?500 kyr episode of global warming that initiated at ? 40.5 Ma, is postulated to be driven by net increase in volcanic carbon input, but direct source has not been identified. Here we show, based on new and previously published radiometric ages rocks, the interval spanning MECO corresponds massive continental arc volcanism Iran Azerbaijan. ...
the kuhshah ultramafic complex is located in the south-east of sanandaj-sirjan metamorphic zone, near the probable remnants of neotethys plate in iran. it consists of highly depleted harzburgites, dunites, chromitite bands and altered gabbros. the ultramafic parts have been intruded by numerous clinopyroxenite dykes and veins. in the harzburgites, there are different generations of olivine, ort...
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