 | | Journal (article/letter/editorial) | | Meteoritical Society, 1998. Printed in USA. Popigai crater: Origin and distribution of diamond-bearing...Institute, Sredny prospekt 74, St.-Petersburg, 199106, Russia Author's e-mail address: vsegei@mail.wplus.net...discovered in impact craters. Impact diamonds are currently known from a number of impact structures in...will increase with time. The Popigai crater, Northern Siberia, where impact diamonds were first found,...industrial impact diamonds were discovered, and these minerals were studied in detail. Authigenic impact diamonds |  | | Journal (article/letter/editorial) | | de/journals/chemerd INVITED REVIEW Upper Eocene Impact Ejecta/Spherule Layers in Marine Sediments B. P...northwestern Atlantic Ocean and on Barbados. Unmelted impact ejecta (including shocked quartz and feldspar with...is now accepted that they belong to a different impact event. The major crystalline phase in the cpx spherules...the 100 km-diameter Popigai impact structure in northern Siberia may the source crater for the cpx strewn...microkrystites, impact ejecta, upper Eocene, tektite strewn field, clinopyroxene-bearing spherules, Popigai crater |  | | 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) | | 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 |  | | Journal (article/letter/editorial) | | with a mixture of target rocks at the Bosumtwi crater. The average composition of the North American...microtektites with lithologies in impact breccias recovered from the Chesapeake Bay impact structure that is believed...believed to be the source crater. Likewise, we could not match the composition of the cpx spherules with...data are available) at the Popigai impact crater that may be the source crater for the cpx spherules. This...confirmed that tektites and microtektites are distal impact ejecta (see e.g., Koeberl, 1994; Montanari and |  | | Journal (article/letter/editorial) | | troilite, metal, phosphate, baddeleyite and silica (cristobalite). Brown glassy melt veins are ubiquitous and...maskelynitized plagioclase feldspar, and metastable cristobalite indicate that these rocks underwent significant...meteorites contain a silica polymorph, identified as cristobalite using Raman spectroscopy (Fig. 8). The peaks...all correspond to the major Raman peaks for cristobalite (Kingma and Hemley 1994). Fig. 4. Pyroxene...pressures is recorded by silica polymorphs. Cristobalite is found in low modal abundance (0.7 to 1.6%) |  | | 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 |  | Kring, David A., Hörz, Friedrich, Zurcher, Lukas, Fucugauchi, Jaime Urrutia (2004) Impact lithologies and their emplacement in the Chicxulub impact crater: Initial results from the Chicxulub Scientific Drilling Project, Yaxcopoil, Mexico. Meteoritics & Planetary Science, 39 (6) 879-897 doi:10.1111/j.1945-5100.2004.tb00936.x | Journal (article/letter/editorial) | | http://meteoritics.org Impact lithologies and their emplacement in the Chicxulub impact crater: Initial results...Tertiary marine sediments, polymict breccias, an impact melt unit, and one or more blocks of Cretaceous...crosscut with impact-generated dikes, in a region that lies between the peak ring and final crater rim. The...The impact melt and breccias in the Yax-1 borehole are 100 m thick, which is approximately 1/5 the thickness...final rim of the Chicxulub crater. The sequence and composition of impact melts and breccias are grossly |  | Li, Shan-Shan, Keerthy, S., Santosh, M., Singh, S.P., Deering, C.D., Satyanarayanan, M., Praveen, M.N., Aneeshkumar, V., Indu, G.K., Anilkumar, Y., Sajinkumar, K.S. (2018) Anatomy of impactites and shocked zircon grains from Dhala reveals Paleoproterozoic meteorite impact in the Archean basement rocks of Central India. Gondwana Research, 54. 81-101 doi:10.1016/j.gr.2017.10.006 | Journal (article/letter/editorial) | | grains from Dhala reveals Paleoproterozoic meteorite impact in the Archean basement rocks of Central India...grains from Dhala reveals Paleoproterozoic meteorite impact in the Archean basement rocks of Central India...grains from Dhala reveals Paleoproterozoic meteorite impact in the Archean basement rocks of Central India...interest ever since the report of an ancient meteorite impact event there. Here we present an integrated study...insight into the RI nature and timing of the impact event. The zircon grains from the impactites show |  | | Journal (article/letter/editorial) | | table such as diamond-silicongermanium, CO2-V-cristobalite, etc. Both criteria overlap, for instance stishovite...incompletely characterized carbon-phase from the Ries-impact crater (El Goresy and Donnay 1968) has a unit cell...carbon-phase of unknown structure from the Popigai impact crater that also exhibits a very large unit cell...also be described as the superposition of two cristobalite-like networks translated by ¼, ¼, ¼. However...structures closely related to, or isotypic with, cristobalite (Iota et al. 1999; Datchi et al. 2012). This |  | | 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 | | 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 (volume) | | hyperagpaitic alkaline rocks of the Kola Peninsula, Russia G. Ferraris, A.P. Khomyalwv, E. Belluso and S....Univemty of St Petenburg, Russia; c Karpins/ciy Geological Institute, St Petenburg, Russia; d Department of Geology...diamonds from the impact craters of Nocdlinger Ries, Germany, and Popigai, Russia, were studied. Generally...the PI and P2 type, whereas the diamonds from the impact areas revealed a relatively strong FS line only...Diamond, Defects, EPR, Finsch, NlJrcilinger Ries, Popigai INTRODUCTION Defects in crystals depend on the |  | | Book | | Impact Studies Series Editor Christian Koeberl Editorial Board Eric Buffetaut, CNRS, Paris, France Iain...Boris Ivanov, Russian Academy of Sciences, Moscow, Russia Wolf Uwe Reimold, University of the Witwatersrand...com/series/4698 Billy P. Glass Bruce M. Simonson • Distal Impact Ejecta Layers A Record of Large Impacts in Sedimentary... Preface It is becoming increasingly clear that impact cratering has played a major role in the evolution...is the correlation between the impact that produced the Chicxulub impact structure on the Yucatan Peninsula |  | | Book | | two || to their bisectors. Example: (low) α-cristobalite, SiO2 (7 Sect. 11.6.1). 5 *4/m2/m2/m (4/mmm):...high-temperature modifications tridymite and cristobalite, the latter being an important constituent of...countries and is exported, e.g., from Canada, India and Russia. Other fibrous minerals displaying toxic properties...of natural origin and part of them have no toxic impact at all (e.g., Gieré and Querol 2010). For instance...contaminated environments: Characterization, stability, impact. Can Mineral 47:489–492 53 References and Suggestions |  | | Book | | V. G. Shukhov, 23–27 September 2019, Belgorod, Russia Springer Proceedings in Earth and Environmental...Series Editor Natalia S. Bezaeva, The Moscow Area, Russia The series Springer Proceedings in Earth and...Belgorod, Russia Editor Sergey Glagolev Belgorod State Technological University Belgorod, Russia ISSN...be considered at the Congress, which is held in Russia for the first time, are exceptionally broad. They...Technological University, which is a flagship university of Russia, an educational and scientific-innovative center |  | | 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...P32 MCI Mineralogy Age (m.y.) Matrix Cristobalite Cristobalite Chondrule Chondrule Anorthite Chondrule...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 |  | | 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 (issue) | | Customer Service. Database Coverage Gems & Gemology’s impact factor is 0.778, according to the 2013 Thomson...moment, and will probably not have a significant impact on the results. The calculated visible spectra...Synthetic alexandrites grown by the HOC method in Russia: internal features related to the growth technique...barite (figure 13); chalcopyrite (figure 14); cristobalite (SiO2); hematite; ilmenite; magnetite; near-colorless...(amorphous) Carbonate Chalcopyrite Clinozoisite Cristobalite Diaspore Diopside Epidote Ferro-columbite Fuchsite |  | | Journal (issue) | | MINERALOGICAL CLUSTER ANALYSIS, VERTIGO TARGET, WHITE GOLD DISTRICT, WEST-CENTRAL YUKON TERRITORY, CANADA James Alexander...~70 km south of Dawson City in the White Gold district, west-central Yukon Territory, Canada. Gold-mineralized...- a unique suite of pathfinder elements in the district. This study evaluates the spatial, geochemical...consistent with other mesothermal gold events in the district and indicate that the principal quartz vein mineralizing...different volcanoes, sedimentary environments, impact craters, etc.) using Google Earth. The purpose |  | | Report (issue) | | active lava lake in the Overlook crater within the Halema'uma'u Crater and eruption center of the Kīlauea...intensive research have produced no evidence of a major impact associated with any other mass extinction besides...Paul B. Wignall 3. Deccan volcanism, the Chicxulub impact, and the end-Cretaceous mass extinction: Coincidence...Mike Widdowson 7. Plant macrofossils from Boltysh crater provide a window into early Cenozoic vegetation...David Jolley 8. Deccan volcanic eruptions and their impact on flora: Palynological evidence . . . . . . . |  | | 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 |
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