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| sections, where the distal ejecta from Chicxulub crater is well preserved. Scientifically, the workshop...Impact effect on climate and biosphere Ejecta-crater correlation Impact signatures and geochemical...terrestrial impact crater as a mechanism for generating melt to auto-obliterate the crater. They also model...Popigai impact crater, Siberia. Three types of ejecta facies occur in the upper parts of the crater fill: lithic...at the study and analysis of the Boltysh impact crater in the Ukraine, which initially was thought to |
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| active lava lake in the Overlook crater within the Halema'uma'u Crater and eruption center of the KÄ«lauea...6. The early Danian hyperthermal event at Boltysh (Ukraine): Relation to Cretaceous-Paleogene boundary...and Mike Widdowson 7. Plant macrofossils from Boltysh crater provide a window into early Cenozoic vegetation...layer in Texas, northeast Mexico, and the impact crater on Yucatan. She demonstrates the coincidence between...the sediments that infilled the Boltysh meteorite impact crater in Ukraine based on carbon isotopes and |
 | Reimold, W.U, Barr, J.M, Grieve, R.A.F, Durrheim, R.J (1990) Geochemistry of the melt and country rocks of the Lake St. Martin impact structure, Manitoba, Canada. Geochimica et Cosmochimica Acta, 54 (7) 2093-2111 doi:10.1016/0016-7037(90)90273-n | Journal (article/letter/editorial) |
| various types of elastic and melt breccias within the crater, an origin by meteorite impact for the Lake St...surface sampling localities in the Lake St. Martin crater structure, Manitoba, Canada. Geology after MCCABEand...circle represents inferred original position of crater rim. inner circle represents outer edge of annular...rocks of precratering age are Devonian and that the crater was filled with Jurassic redbeds and evaporites...Martin structure is a structurally modified complex crater of ca. 23 km in diameter. A central uplift consisting |
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| intermediate ∆17O values range from -12.6 to -2.9. Anorthite in the interior is depleted in 16O (∆17O = -2...Presence of poikilitic olivine surrounded by anorthite in the interior suggests mixing of a Sirich chondrule-like...geochemistry of the craterfill sediments from Boltysh impact crater, Ukraine J. WATKINS1*, D.J. DEPAOLO1, C. HUBER1...Ukrainian Academy of Sciences, Kiev, Ukraine The Boltysh impact crater, is a complex structure formed on...which has been dated at 65.17±0.64 Ma [1]. The Boltysh crater has been know for several decades and was originally |
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| IMPACT DIAMONDS IN GLASS FROM OTTING QUARRY, RIES CRATER, GERMANY. J. 1. Abbott, R. M. Hough, 1. Gilmore...base of the Otting Quarry, Ries, Germany. The Ries Crater is a 25-km-diameter, l6-m.y.-old structure formed...shallow-level impact-derived deposits makes the crater the ideal site for a detailed investigation of...acid-demineralized residues of impact melt rocks from the Ries Crater revealed the presense of impact diamonds, closely...by the impact responsible for the Chesapeake Bay Crater in southeastern Virginia [ 1-31. In this investigation |
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| Argentina. Introduction: A new possible impact crater was discovered during routine flights by Mr. Jorge...s.l). It has 1.0 km in diameter. Results: The crater feature is a clear ring with a raised rim and a...at the top of the chain. The area all around the crater is full of radial and concentric fractures and...the structure. Conclusions: Sierra de Ambato’s crater cannot be a volcanic neck or caldera. Its morphology...there are no visible lava floods coming from the crater itself. No volcanic features have been so far reported |
