نتایج جستجو برای: upper paleozoic

تعداد نتایج: 206694  

Journal: :American Journal of Science 1914

Journal: :Integrative and comparative biology 2007
Martin Flück Keith A Webster Jeffrey Graham Folco Giomi Frank Gerlach Anke Schmitz

Both the gradual rise in atmospheric oxygen over the Proterozoic Eon as well as episodic fluctuations in oxygen over several million-year time spans during the Phanerozoic Era, have arguably exerted strong selective forces on cellular and organismic respiratory specialization and evolution. The rise in atmospheric oxygen, some 2 billion years after the origin of life, dramatically altered cell ...

Journal: :Earth-Science Reviews 2021

The evolution of Earth's atmosphere is extreme importance to the lithosphere, hydrosphere and biosphere. This particularly true for role biosphere played in inceptual formation atmospheric oxygen, subsequently its potential higher life forms. Quantifying change oxygen with geologic time extremely challenging, redox sensitive isotope element models subject contradictory outcomes. Here, we presen...

2011
Michele G Bishop

The Bonaparte Gulf Basin Province (USGS #3910) of northern Australia contains three important hydrocarbon source-rock intervals. The oldest source-rock interval and associated reservoir rocks is the Milligans-Carboniferous, Permian petroleum system. This petroleum system is located at the southern end of Joseph Bonaparte Gulf and includes both onshore and offshore areas within a northwest to so...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده علوم 1391

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...

Journal: :American Journal of Science 1885

Journal: :Minerals 2023

On the basis of elaborating on regional geological background, this paper analyzes lithological and sedimentary characteristics explorative prospects new strata with oil gas in southern surrounding areas Dayangshu Basin. Based latest high-precision airborne gravity magnetic comprehensive survey data, combined data from explorations, physical surveys, drilling, use basin structure layering combi...

Journal: :Canadian Journal of Earth Sciences 2021

Collapsed reflections of lower Ordovician carbonates and upper Carboniferous-lower Permian coal-bearing strata occur below the middle Shihezi Formation in Hangjinqi area, northern Ordos Basin. This study takes advantage three-dimensional seismic data, logging core data well-testing to investigate genesis collapsed their implications for hydrocarbon potential. These collapse structures have a su...

Journal: :Geophysical Research Letters 2022

The crust and upper mantle beneath the New England Appalachians exhibit a large offset of Moho across boundary between Laurentia accreted terranes several dipping discontinuities, which reflect Paleozoic or younger tectonic movements. We apply scattered wavefield migration to SEISConn array deployed northern Connecticut obtain insights not previously available from receiver function studies. re...

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