نتایج جستجو برای: burial diagenesis
تعداد نتایج: 6420 فیلتر نتایج به سال:
The geochemical composition of foraminiferal tests is a valuable archive for the reconstruction of paleo-climatic, -oceanographic and -ecological changes. However, dissolution of biogenic calcite and precipitation of inorganic calcite (overgrowth and recrystallization) at the seafloor and in the sediment column can potentially alter the original geochemical composition of the foraminiferal test...
Mixed-layer illite-smectite (I-S) from a new set of Pennsylvanian-aged Illinois Basin underclays, identified as paleosols, are investigated to assess the impact (1) regional diagenesis across basin and (2) extent which ancient environments promoted illitization during episodes soil formation. Interpretations Reichweite Ordering ?° 2? metrics applied X-ray diffraction patterns suggest that most ...
The marine environment contains suspended particulate matter which originates from natural and anthropogenic sources. Settlement of this material can leave benthic organisms susceptible to smothering, especially if burial is sudden i.e. following storms or activities such as dredging. Their survival will depend on their tolerance to, and their ability to escape from burial. Here we present data...
pithos burial is a common burial method in arsacids era. various cemeteries of this era have been unearthed until now but there wasn’t any reference about historical and archaeological condition of marivan’s region and the existence of pithos because of the lack of enquiry and archaeological studies. fortunately, by with research effort, some pithos cemeteries with diverse burial from arsacids ...
This paper focuses on the Frasnian reefal development in eastern border of Dinant Synclinorium. Classical sections from Durbuy–Bomal area were reevaluated for lithostratigraphy, microfacies, magnetic susceptibility (MS) and diagenesis. As regards middle succession, studied is located a transitional zone between Pont de la Folle/Philippeville Formations Moulin Liénaux/Grand Breux Formations. suc...
Most of the potential sandstone reservoirs within Namurian and lower Westphalian succession Southern North Sea Basin are originally feldspathic sands in which feldspar has mainly been altered to microporous kaolinite clays. The sandstones provide a moderate porosity (typically 8‐15%, depending on grain size), but permeability is severely limited owing nature much porosity. Permeability typicall...
This work supports mine burial prediction by the US Navy by transitioning the capabilities provided by state-of-the-art, high-resolution process models to Naval operations. These models are synthesized by a statistical prediction tool (the Mine Burial Expert System—MBESM), which relates uncertainty in model input to uncertainty in the predicted mine burial. This work will produce more detailed ...
The Black Death had a devastating impact on communities living in Europe during the mid-14th century. devastation wreaked by epidemic was thought to lead disruption of social norms, including those surrounding burial dead. Some scholars have, however, suggested this not always case, particular for rural settings (Kacki et al., 2011). Recent excavation at Thornton Abbey Lincolnshire revealed two...
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