نتایج جستجو برای: units including halite siltstone ngsih
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Climate changes within Cenozoic extreme climate events such as the Paleocene-Eocene Thermal Maximum and the First Oligocene Glacial provide good opportunities to estimate the global climate trends in our present and future life. However, quantitative paleotemperatures data for Cenozoic climatic reconstruction are still lacking, hindering a better understanding of the past and future climate con...
Introduction: By analyzing the stable Cl-isotopes of halite from the Zag H-breccia and comparing the results with those from other chondritic materials we can provide new information about isotopes in the early Solar System. In particular Cl-isotope work may complement O-isotope studies. We show for the first time that substantial Cl/Cl fractionation exists between chondrite components. Zag hal...
We studied mineral and deposition records in a dry lake playa, Sabzevar, northeastern, Iran. For sampling soil and depositional records, 12 samples were taken along Playa surfaces including firm puffy ground, clay-carbonate plain, and salty pan with the dominance of Halite salts. All profiles were excavated by hand auger with a 5 cm diameter head to a depth of ~5 cm. Sediment analysis was carri...
The Late Permian Betts Creek Beds form a succession of coal-bearing alluvial-coastal plain sediments in a basin marginal setting within the northeastern Galilee Basin, Queensland, Australia. The unit is ~ 50–60 m in thickness at Porcupine Creek National Park where outcrop is laterally continuous for several kilometers. Eight facies have been identified within the formation and can be grouped in...
The outcropping Cretaceous siliciclastic sediments in the Al Bauga area in Northern Sudan reach a maximum thickness of about 30 meter. They rest with angular unconformity on tilted Precambrian basement rocks and are capped by Tertiary-Quaternary basalts forming a type of nonconformity. The sedimentary sequence was subdivided into three major units separated by two disconformities. The lower uni...
Fluid inclusions in evaporite minerals (halite, gypsum, etc.) potentially preserve genetic records of microbial diversity and changing environmental conditions of Earth's hydrosphere for nearly one billion years. Here we describe a robust protocol for surface sterilization and retrieval of DNA from fluid inclusions in halite that, unlike previously published methods, guarantees removal of poten...
The Salar de Uyuni, a salt pan located in the Bolivian Andes, was subject to hydrogeological and hydrochemical investigations between June and September 2009. During a drilling and sampling campaign halite cores were gained from different bore holes with depths between 2 and 12 m at two locations in the north eastern and the central part of the Salar (named SLT-01 and SLT-03, respectively). Bri...
LÕanalyse de la texture du sel gemme naturel et du halite dform exprimentalement a montr quÕil se produit une orientation prfrentiel le du rseau dans les cristaux de halite. Les paramtres dÕlasticit pour une srie dÕagrgats polycristallins de halite sont calculs en utilisant les fonctions de distribution dÕorientation. Ils sont alors utiliss pour laborer des modles sismiques dans...
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