 | Jonášová, Šárka, Ackerman, Lukáš, Žák, Karel, Skála, Roman, Ďurišová, Jana, Deutsch, Alexander, Magna, Tomáš (2016) Geochemistry of impact glasses and target rocks from the Zhamanshin impact structure, Kazakhstan: Implications for mixing of target and impactor matter. Geochimica et Cosmochimica Acta, 190. 239-264 doi:10.1016/j.gca.2016.06.031 | Journal (article/letter/editorial) |
| Geochemistry of impact glasses and target rocks from the Zhamanshin Impact Structure, Kazakhstan: Implications...Geochemistry of impact glasses and target rocks from the Zhamanshin Impact Structure, Kazakhstan: Implications... Geochemistry of impact glasses and target rocks from the Zhamanshin Impact Structure, Kazakhstan: Implications...and several groups of impact glasses of the Zhamanshin impact structure, Kazakhstan. These include larger...larger irregularlyshaped fragments and blocks of impact glass (zhamanshinite), and three types of tektite-like |
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| albite 13.42, anorthite 18.56, spinel 24.78, diopside 5.77, hedenbergite 23.12, andradite 10.12, and...secondary-about their alteration in the parent bodies during impact metamorphism (pp. 73-80). Terrestrial age and classification...Elements of bilateral symmetry of the Zhamanshin impact crater. V. L. Masaytis. All-Union Scientific...Bilateral symmetry of the internal structure of the Zhamanshin astrobleme and the distribution of the ejecta...blocks of rocks, impact glass) indicate that this impact structure was formed by oblique impact of a body travelling |
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| density/composition of material in the formation region (equilibrium). It is interesting to note that when...suggests excavation of subcrustal material in a crater or impact basin comparable in size to the planetary...orbital similarities [4]) may be ejecta from this impact [5] and direct parents of the basaltic achondrites...been reconciled with the present understanding of impact physics. Analytical spallation models [4,6] predict...Vesta" would be almost the size of Vesta! Such an impact would lead to the catastrophic disruption of both |
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| ratios. Inpre-SNII stars, the He shell is the only region with C > 0,required for graphite formation. While...DESCRIPTIONS OF IMPACT ROCKS RECOVERED BY RECENT CORE DRILLING IN THE W S O N IMPACT STRUCTURE. R. R...Iowa City IA 52242-1319, USA, 'Iowa Center for Impact Studies, c/o IDNR Geological Survey Bureau, 109...were recovered from the Manson impact structure. Four principal impact rock types were encountered (1)...metamorphic rocks (CP), and (4) an overturned flap of impact ejecta (IE). The SCB is dominated by clasts of |
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| other than the suggestion that the ice in this region is probably close to a steady state condition....shocked quartz in sediments is used to identify impact events in the Earth history. When compared to the...having a square of 1.3E-18 cm-. Production rate of impact craters (> I km diameter) is 12E-13 km-/y. Time...be recrystallized. The total mass of continental impact melt is computed to be 5.6E20 g (0.3% of the total...of continental volcanic rocks) whereas that of crater ejecta is found to be 7.8E-21 g (0.6% of the total |
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| techniques in the middle-infrared, the spectral region most diagnostic of composition; and laboratory...during flight, the Ge plates contain many extended impact features that were apparently produced by projectile...foil from the trailing edge and found extended impact features from 200 to 4000 ILm in diameter with...multi-element point analyses in lateral scans across the impact features. In all impacts so far studied we found...in the form of elemental enhancements in the impact region. One such analysis is shown in Fig. I, which |
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| septum and overlying regions consolidate. The denser region below the dunite septum may have remained molten...was internally heated. Peak temperatures in this region would have been 700-900K. Only Semarkona could...formed beyond this point. Apart from Semarkona the region between 78-85 km is unrepresented in the meteorite...hydrous lOPs perhaps they too were derived from this region. Afiattalab and Wasson, 1980. GCA 44,431-446. Alexander...parent body which was disrupted by a catastrophic impact. Many imaginative reconstructions of former planetesimals |
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| . . . . . . . . . . . . . . 19 Impact as a general cause of extinction: A feasibility...metal toxicity as a seed stock kill mechanism in impact-caused mass extinctions . . . . . . . ...and Hypotheses 12. Assessment of the atmospheric impact of volcanic eruptions . Haraldur Sigurdswn 13...Observations and Effects of Large-Scale Meteorite Impact . Impact and its revolutionary implications for geology...181 Contents 22. v The formation of the Ries Crater, West Germany; Evidence of atmospheric interactions |
