نتایج جستجو برای: valanginian
تعداد نتایج: 119 فیلتر نتایج به سال:
منطقه کیبرکوه در شمالشرقی بلوک لوت واقع شده است. واحدهای سنگی منطقه شامل: سنگهای دگرگونی پالئوزوئیک و مجموعه تودههای نفوذی کرتاسه تا ترسیر با ترکیب گرانیت تا دیوریت است. این تودهها به دو سری اکسیدان و احیایی تقسیم میشوند. تودههای نفوذی احیایی شامل: گرانیت و گرانودیوریت است که دارای بافت هیپیدومورف گرانولار هستند و کانیهای آنها متشکل از فلدسپارها، کوارتز، مسکوویت و کمتر بیوتیت است. تودهه...
Terrestrial ecosystems from the Lower Cretaceous of Europe and bonebeds formed in swampy environments are poorly known. The Berriasian-early Valanginian Angeac-Charente site France represents an example both. Nine field campaigns have yielded thousands fossils over a hundred taxa, including 16 taxa vertebrate macroremains with numerous trample crocodile bite marks; 22 abundant microremains; >10...
The Apennine Carbonate Platform of southern Italy witnesses nearly 150 Myr (Late Triassic to Late Cretaceous) shallow-water carbonate sedimentation in the subtropical central Tethys. During this field trip, you will have a look at stratigraphy and facies across some key intervals global palaeoenvironmental perturbation important stratigraphic discontinuities history platform.During first day, v...
Large volumes of mafic igneous rocks are commonly emplaced during Igneous Province (LIP) eruptions, and these often contemporaneous with periods environmental disturbances, such as global ocean anoxia, a result, mass extinctions. The Paraná-Etendeka LIP is no exception, has been previously correlated with, interpreted to be the cause Valanginian oceanic anoxic event (OAE), small disturbance. He...
The Berriasian-Valanginian Fahliyan Formation forms one of the giant reservoirs in the subsurface of the Abadan plain, onshore Iran. A detailed petrographical analysis of the available cores and thin sections revealed that the different diagenetic parameters influenced the reservoir quality of the Fahliyan Formation in this field. The Fahliyan Formation has been influenced by three diagenetic e...
Abstract Maio Island (Cabo Verde Archipelago) is composed of uplifted Early Mesozoic MORB-type pillow lavas and deep-sea sediments, unconformably overlain intruded by Miocene igneous rocks. Combined structural analyses 40 Ar– 39 Ar dating were used to constrain the evolution Maio. Structures ages sequences crosscutting dykes showed that numerous intrusive events associated with intense growth a...
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