نتایج جستجو برای: clastic rocks
تعداد نتایج: 22678 فیلتر نتایج به سال:
The Paleozoic rocks are well exposed in the Taungnyo area and main purpose of classification is taxonomic status invertebrate fossils describing systematic paleontology brachiopod from Formation. Mainly distributed clastic sedimentary Formation (Early Carboniferous) carbonate Moulmein Limestone Group (Permian to Middle Triassic) area. In this study, mainly, a total five species recognized sedim...
Abstract The grain size of clastic rocks is one the most important structural characteristics sediments, which can directly reflect hydrodynamic conditions ancient sedimentary period. preparation conventional rock particle samples usually done by hand wet grinding with a hammer experienced experimenter. For fine-grained rocks, method for preparing has disadvantages long time and low efficiency....
We examined the Csalóka Spring, which has the highest radon concentration in the Sopron Mountains (West Hungary) (, yearly average of 227 ± 10 Bq L(-1)). The main rock types here are gneiss and micaschist, formed from metamorphism of former granitic and clastic sedimentary rocks respectively. The aim of the study was to find a likely source of the high radon concentration in water. During two p...
In this paper we describe a technique based on radio frequency plasma treatment in H2O vapour to reproducibly clean and modify the surface energy of clastic and carbonate core material allowing the establishment of well defined wettability conditions. We present micro-tomographic observations of the pore-scale fluid distributions in strongly water wet clastic and carbonate cores. We then establ...
Abstract Among sites of geomorphological interest in the tableland Stołowe Mountains, consisting clastic sedimentary rocks Late Cretaceous age, are enigmatic occurrences and clusters sandstone boulders within plateau levels that underlain by mudstones marls. These allochthonous, having been derived from quartz beds support upper level stratigraphically excess 50 m above altitudinal position bou...
Quantifying the proportions of certain components in rocks and deposits (modal analysis or componentry) is important earth sciences. Relevant methods for cross-sections (two- dimensional exposures) clastic include point counts line counts. The accuracy these has been supposed to be good literature but not necessarily verified empirically. Natural materials are inappropriate assessing because tr...
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