نتایج جستجو برای: early permian

تعداد نتایج: 688457  

Journal: :Gondwana Research 2021

Although central to an understanding of Earth's paleogeography and the myriad processes that it affects, geometry Pangea during early phase its lifetime has remained a topic contention since plate tectonic revolution. Despite decades analysis discussion, crux this debate still largely hinges on sparse, legacy paleomagnetic data derived from Permian rocks Moroccan Meseta. In work, we present res...

A. Bahrami H. Ameri M. Yazdi

The aim of this study is to bridge a gap in the existence of Trilobites in the marine Permian successions of Iran by exploring a stratigraphic section of the Permian in Jamal Formation (Dizlu section).  Based on comprehensive field studies and laboratory investigations three Trilobite specimens were identified in the study area including Pseudophillipsia (Carniphillipsia) dizluensis sp. nov., P...

Journal: :Fossil Record 2021

Abstract. Permian–Triassic boundary sections at Baghuk Mountain (Central Iran) are investigated with respect to their lithological succession, biostratigraphy (particularly conodonts, nautiloids and ammonoids) as well chemostratigraphy (carbon isotopes). The rock successions consist of the Late Permian Hambast Formation, youngest Member (new name for “Boundary Clay”) Early Triassic Claraia beds...

Journal: :New Zealand Journal of Geology and Geophysics 1982

The Paleozoic sediments of the Chal-i-Sheh area in southwestern Iran comprising of Mila Formation, Ilebek Formation and Faraghan Formation, were studied palynologically. The samples containing well-preserved palynomorphs include acritarchs, chitinozoans, scolecodonts and pollenlspores. A palynological zonation has been established and comparison was made with other parts of the world. Based...

Journal: :Marine Micropaleontology 2022

Benthic foraminifera are significant indicators of habitat changes and useful for paleoenvironmental reconstruction. During the Permian period, variation in species, individual sizes, morphological characteristics different assemblages, such as fusulinids, is a clue to paleoecological interpretations. The eastern part Sichuan Basin, located near equator middle Permian, Guadalupian was precipita...

Journal: :Basin Research 2021

Reprocessed, regional, 2D seismic reflection profiles, 3D volumes and well data (exploration shallow boreholes), combined with structural restorations 1D backstripping were used to study the post-salt evolution of Nordkapp Basin in Barents Sea. The took place above a pre-salt basement basin configuration affected by multiple rift events that influenced depositional facies thickness Pennsylvania...

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