Impact glasses and the groundmass of the boltysh impact crater suevites
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منابع مشابه
The Boltysh impact crater, Ukraine: smectites from the crater-fill suevites
The Boltysh crater has an entire suite of crater-fill impactites preserved, including two impact meltbearing breccias. Smectite occurrence in the breccias suggests two stages of alteration; an early hydrothermal mineralization, and a later, low temperature weathering. δD and δO of smectite separates are currently being measured and will be presented.
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Fullerenes have been so far identified in a few rock types with unique geological history. One group of these finds is related to impacts of extraterrestrial bodies on Earth surface, strictly speaking the impact structure of Sudbury (Becker et al., 1994) and to events recorded from Permian/Triassic (Becker et al., 2001) and Cretaceous/Tertiary boundaries (Heymann et al., 1994). Generally two ba...
متن کاملDifferential Alteration of Glass Clasts in the Surficial Suevites of the Ries Crater, Germany
The mid-Miocene (14.3 + 0.2 Ma; [1]) Ries impact crater located in southern Germany was formed in a two-layer target comprised of dominantly Mesozoic flat lying siliciclastic and carbonate sedimentary rocks that unconformably overlie crystalline Hercynian basement [2]. Ries is a complex crater with a total diameter of ~24 km [2]. Impactite and ejecta deposits are exceptionally well preserved. T...
متن کاملPost-impact heating of a crater lake
Lacustrine sediments from the 24 km diameter Boltysh impact structure record the rapid formation of an intra-crater lake. Stable isotope compositions and organic maturity parameters from the lake sediments deposited post-impact show that they were heated by underlying impactites. This heating is attributed to the establishment of an impactgenerated hydrothermal system. Estimates of the duration...
متن کاملDetermination of Soil Moisture Content at Bukit Bunuh Meteorite Impacted Area using Resistivity Method and Laboratory Test
Determination of soil moisture content is of vital importance to many fields of study; civil engineering, hydrology, agriculture, geology, ecology and forestry. The occurrence of impact crater in Bukit Bunuh, a meteorite impacted area, made it an area of great interest to many researchers. In view of the process of impact cratering, the subsurface soil characteristics such as moisture content o...
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تاریخ انتشار 2013