نتایج جستجو برای: clastic rocks
تعداد نتایج: 22678 فیلتر نتایج به سال:
Chert concretions in thick limestone successions preserve a more complete paragenetic sequence of diagenetic minerals than their host and interbedded shale. The goal this study was to test the possible presence high-temperature mineralising system Ionian basin western Greece. Upper Cretaceous chert nodules were sampled at Araxos, where rocks are highly faulted uplifted by salt diapirism, on Kas...
Cell-free extracts of Clostridium perfringens were found to contain all the enzymes of the Embden-Meyerhof pathway of glycolysis in addition to lactic acid dehydrogenase and the pyruvate-clastic system. Neither glucose-6-phosphate dehydrogenase nor 6-phosphogluconate dehydrogenase activities could be demonstrated, suggesting the absence of the conventional hexose-monophosphate pathway in this o...
The 18-km-diameter El’gygytgyn crater is located on the Chukotka peninsula, northeastern Russia. It represents the only currently known impact structure formed in siliceous volcanics, including tuffs. The impact melt rocks and target rocks provide an excellent opportunity to study shock metamorphism of volcanic rocks. The shockinduced changes observed in porphyritic volcanic rocks from El’gygyt...
abstract the balvard metamorphic assemblage (bma) crops out at the northeastern margin of the southeastern part of the sanandaj-sirjan zone (ssz) in contacting to the dehshir-baft ophiolitic mélange. this location prepared a special situation to resolve some of the complicated tectonic problems of this part of iran. petrology, micro-tectonics and satellite image investigation were carried out ...
In Ganzhou City, China, a complex bedrock lithology and structure, diverse topography, frequent engineering works, abundant rainfall generate frequent, sudden, small-scale landslides that are difficult to prevent control. This study integrates evidence data from field investigation of with geological-engineering analogues document the distribution development these geohazards in City. Based on ...
Fossil remains of chondrichthyan tooth bases (roots) were found in Lower Permian beds exposed along the forest road between Dovje and Plavški Rovt. These layers are part clastic development Trogkofel Group beds. They composed an alternation dark to light-grey shales, siltstone, sandstone with rare conglomerate. Within succession, or lenses dark-grey black limestones (biosparitic, biomicritic oo...
In the previous paper, geological ages of Late Cretaceous, Paleocene, late Middle to Eocene, Oligocene and early Early Miocene were confirmed at first time, based on occurrences both age diagnostic larger foraminifera associated planktonic foraminifera, from Sashida Limestone included basalt pebbles, Sashida, Kamo-Gun, south Izu Peninsula. Therefore, was made up clastic carbonate rocks various ...
............................................................................
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید