منابع مشابه
formation and evolution of regional organizations: the case study of the economic cooperation organization (eco)
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
15 صفحه اولStratigraphy and Palaeontology of Trilobites in Kuhbanan Formation in the Akbar-Abad Section (North of Kerman)
Cambrian sedimentary facies are exposed throughout north part of Kerman region. Trilobites’ faunas are the most common invertebrate fossils within the Cambrian strata. The section is made of 217 m of sandstone, shale, limestone and dolomite. In this study, 153 trilobite samples including seven species and genera were identified from the Dahu section 12 Km. east of Zarand. This trilobite’s assem...
متن کاملStratigraphy of the Triassic Martin Bridge Formation, Wallowa terrane: Stratigraphy and depositional setting
The Upper Triassic (Carnian–Norian) Martin Bridge Formation of northeastern Oregon, southeastern Washington, and western Idaho is characterized by rapidly shifting depositional processes within a tropical volcanic island arc setting. Martin Bridge sequences in the Hells Canyon and northern Wallowa Mountains document shallow-water peritidal evaporitic sediments that are succeeded by deeper and p...
متن کاملThe magnetic polarity stratigraphy of the Mauch Chunk Formation, Pennsylvania.
Three sections of Chesterian Mauch Chunk Formation in Pennsylvania have been studied paleomagnetically to determine a Late Mississippian magnetic polarity stratigraphy. The upper section at Lavelle includes a conglomerate with abundant red siltstone rip-up clasts that yielded a positive conglomerate test. All samples were subjected to progressive thermal demagnetization to temperatures as high ...
متن کاملStratigraphy, Sedimentology, and Sequence Stratigraphy of the Lower Triassic Sinbad Formation, San Rafael Swell, Utah
The Lower Triassic Sinbad Formation (Thaynes Group) in the San Rafael Swell of east-central Utah (11-18 m thick) represents the maximum flooding zone and at least part of the highstand systems tract of a 185+ m thick depositional sequence. The Sinbad Formation conformably overlies siliciclastic tidal flat, fluvial channel and carbonate peritidal deposits of the Black Dragon Formation, a transgr...
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ژورنال
عنوان ژورنال: Atlantic Geology
سال: 1975
ISSN: 1718-7885
DOI: 10.4138/1824