نتایج جستجو برای: clastic rocks

تعداد نتایج: 22678  

Journal: :Open Journal of geology 2022

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...

Journal: :Journal of physics 2023

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....

Journal: :Journal of environmental radioactivity 2016
Ágnes Freiler Ákos Horváth Kálmán Török Tamás Földes

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...

2008
M. Kumar T. J. Senden S. Latham A. P. Sheppard M. A. Knackstedt W. V. Pinczewski

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...

Journal: :Geologos 2021

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...

Journal: :Geosphere 2021

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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