نتایج جستجو برای: lithostratigraphy

تعداد نتایج: 304  

2010
Jeffrey W. Martz William G. Parker

BACKGROUND Recent revisions to the Sonsela Member of the Chinle Formation in Petrified Forest National Park have presented a three-part lithostratigraphic model based on unconventional correlations of sandstone beds. As a vertebrate faunal transition is recorded within this stratigraphic interval, these correlations, and the purported existence of a depositional hiatus (the Tr-4 unconformity) a...

Journal: :Proceedings of the Geologists' Association 2021

The Lough Foyle Basin is a half-graben that straddles the border between Northern Ireland and Republic of contains sediments range in age from Lower Carboniferous to Holocene. basin’s post-rift succession represented by Penarth Group Lias Group. lithostratigraphy biostratigraphy interval are revised using new borehole material existing outcrop. Palaeontological data provide chronostratigraphic ...

Journal: :Journal of Quaternary Science 2023

This study presents the first detailed description of upper sedimentary succession late Pleistocene and Holocene deposits in Gulf San Jorge (Patagonia) based on several hundred kilometers high-resolution seismic (sparker) profiles numerous sediment cores. High-resolution stratigraphy confirms existence a paleo-fluvial network formed during sea-level lowstands buried by central basin estuarine l...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1389

تحقیق و مطالعه در زمینه گسترش چینه شناسی استراکدا در عضو e سازند قم در برش چینه شناسی کوه دو برادر با هدف بررسی، شناسایی و مطالعه سیستماتیک استراکدا، تعیین سن و بیواستراتیگرافی نهشته ها بر اساس استراکدا و بررسی محیط دیرینه نهشته ها انجام پذیرفت. ضخامت عضو e بر اساس این پژوهش 207 متر است و لینولوژی مشاهده شده در این مطالعه شامل مارن سبز و خاکستری رنگ، ژیپس یا مارن ژیپس دار، ماسه سنگ و شیل خاکستر...

Journal: :Spanish journal of palaeontology 2022

Maastrichtian argillaceous chalks of the Ghareb Formation are widespread throughout Israel, both in exposures and subsurface. These strata contain a rich fauna foraminifera calcareous nannoplankton, allowing detailed biozonation sediments, which were deposited series basins an outer-shelf to upper-slope environment. The distribution benthonic planktonic from reference section southern Israel is...

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