 | | Journal (article/letter/editorial) | | Mineralogy and petrology of melt rocks from the Popigai impact structure, Siberia J. WHITEHEADI*, R. A. F...2002 January 24) Abstract-The late Eocene Popigai impact structure of Siberia comprises an approximately...and clast-poor andesitic to rhyolitic impact melt rocks and impact breccias, underlain by Archean to Proterozoic...features, though they are not distributed in the impact melts in a systematic manner. This indicates that...in the context of post-impact dynamics. The late Eocene Popigai meteorite impact structure is located |  | | Book | | Impact Studies Victor L. Masaitis Editor Popigai Impact Structure and its DiamondBearing Rocks Impact...Natalia Bezaeva, Moscow, Russia Within the past two decades, research on impact cratering mainly gained...throughout the world after the theory that a large impact event caused the extinction of ca. 50% of all living...approximately 65 million years ago was proposed. Impact craters are formed when a large meteorid crashes...interdisciplinary series, Impact Studies, aims to include all aspects of research related to impact cratering—geology |  | | Journal (article/letter/editorial) | | information on the large-scale dynamics of the impact and related shock. Minerals formed at high pressure...illustrate the links between these parameters and impact duration. Many of the high-pressure mineral phases...meteorites they produce has driven major discoveries in impact dynamics and high-pressure physics, chemistry,...of planets (Figure 1) (Strom et al. 2005). The impact record is better preserved on planets and satellites...calibrated cratering curve of the Moon, impact crater densities and crater size distribution can be used to |  | | Book | | Impact Studies Victor L. Masaitis Mikhail V. Naumov Editors The Puchezh-Katunki Impact Crater Geology...Geology and Origin Impact Studies Series Editors Christian Koeberl, Center for Earth Sciences, University...Natalia Bezaeva, Moscow, Russia Within the past two decades, research on impact cratering mainly gained...throughout the world after the theory that a large impact event caused the extinction of ca. 50% of all living...approximately 65 million years ago was proposed. Impact craters are formed when a large meteorid crashes |  | | Book | | programme “Response of the Earth System to Impact Processes” (IMPACT) by the European Science Foundation (ESF)...European countries. The IMPACT programme is aimed at understanding meteorite impact processes and their effects...the momentum gained for European (and worldwide) impact research will be carried on in other programs and...The programme deals with all aspects of meteorite impact research and operates through workshops, exchange...series on “Impact Studies”, which is published by Springer and intended to go beyond the ESF IMPACT programme |  | | Book | | calcite and aragonite, CaCO3, α-quartz, β-quartz, tridymite, christobalite, coesite and stishovite, SiO2....by the SiO2 polymorphs α-quartz, β-quartz and tridymite, whose transformations may be either displacive...β-quartz to the even higher temperature phase tridymite, involves the total breaking of the bonds between...Si[4]O2 structures, projected onto (0001): a tridymite (space group P63/mmc), b β-quartz (P6222), c α-quartz...β-quartz, reconstructive transformation: β-quartz ↔ tridymite (see text). ● Si, 〇 oxygen (from Borchardt-Ott |  | | Journal (article/letter/editorial) | | timing of thermal metamorphism, and implications for impact history and mixing in the early Solar System [e...formed on the chondrite parent body, resulted from impact melting, or are fragments of an achondritic projectile...are multiple isotopic reservoirs sampled by the impact process. In the future, we plan to use CODEX to...outcrops in-situ on Mars, avoiding terrestrial or impact mixing. Complementary analyses: In our resonance...distributed on the surface of Mars, perhaps by an ancient impact event. The persistence of such a reservoir is plausible |  | | Journal (article/letter/editorial) | | Chemistry, Russian Academy of Sciences, Moscow, Russia. It has long been thought that chondrule rims...macrochondrule, which has been described as an impact melt [4J, the chondrule P9 is more difficult to...Geochemistry, Kosygin Str. 19, Moscow, 117975, Russia. We previously studied Ar, Kr, and Xe during stepwise...suggested that lABs and IIICDs formed in individual impact melt 485 pools [4,2] on a common parent body...compatible with core formation [5,6] than with impact-melt pools [2,4]. References: [1] McCoy T. J. et |  | | Journal (article/letter/editorial) | | those in all achondrites) are seen as the result of impact processes on the eucrite parent body. However,...lunar breccias with their chronology to explore the impact history of the Moon, we have determined precise...trace element abundances for a suite of Apollo 16 impact melt breccias. Methods: 3 g rock chips were powdered...found in our previous study of Apollo 17 poikilitic impact melt breccias [3]. Conclusions: At least two different...the PGE-Re patterns of these Apollo 16 breccias. Impact processes appear capable of fractionating siderophile |  | | Journal (article/letter/editorial) | | dust-may simply be basaltic material, broken up by impact processes or physical weathering and not involving...(EETs) are respectively derived from a common source crater [e.g. 2,3]. Mineralogy ofY981031 is studied to...fine-grained anorthositic highland clasts, clast-poor impact melt clasts, mare basalt clasts, and a finegrained...aluminum-rich, MgO-poor clear glasses are probably of impact origin, while others are pyroclastic/mare glasses...the presence and composition of pyroclastic/mare/impact glasses suggests "sourcecrater pairing" ofY981 |  | | Report (volume) | | meetings in Bejing, China (2010), Novosibirsk, Russia (2011), and Washington, DC (2012), as well as more... 20 The Deep Viriosphere: Assessing the Viral Impact on Microbial Community Dynamics in the Deep Subsurface........654 Bottom-up effects: the biogeochemical impact..................................................(2013) The deep viriosphere: assessing the viral impact on microbial community dynamics in the deep subsurface...cages A disputed form of shocked graphitic C from impact sites Chaoite (also “Ceraphite”) Nano onions |  | | Book | | geochemistry. What is especially notable about Karl is his impact on people, the unanimity of the love for Karl by...measured in K–T Boundary strata had resulted from the impact of a massive bolide with the Earth. Over the next...been designated as type 7, although some may be impact and not internally derived melts. The type 3 ordinary...staining, ringwoodite, melting Whole-rock melting (impact-melt rocks and melt breccias) Shock melted a ...breccias Allende (CV3), Leoville (CV3), Sharps (H3) Impact melt breccias Constituents (including clasts) |
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