 | | Journal (article/letter/editorial) | | at http://meteoritics.org Cooling of the Kärdla impact crater: I. The mineral paragenetic sequence observation...Institute of Geology, Vanemuise 46, Tartu 51014, Estonia *Corresponding author. E-mail: evelin.versh@ut...Abstract–The impact-induced hydrothermal system in the well-preserved, 4 km-diameter Kärdla impact crater on Hiiumaa...Hiiumaa Island, western Estonia, was investigated by means of mineralogical, chemical, and stable C and...evolutionary stages in the development of the post-impact hydrothermal system: 1) an early vapor-dominated |  | JÕELEHT, Argo, KIRSIMÄE, Kalle, PLADO, Jüri, VERSH, Evelin, IVANOV, Boris (2005) Cooling of the Kärdla impact crater: II. Impact and geothermal modeling. Meteoritics & Planetary Science, 40 (1) 21-33 doi:10.1111/j.1945-5100.2005.tb00362.x | Journal (article/letter/editorial) | | http://meteoritics.org Cooling of the K‰rdla impact crater: II. Impact and geothermal modeling Argo JÕELEHT1...University of Tartu, Vanemuise 46, Tartu 51014, Estonia of Dynamics of Geospheres, Russian Academy of Sciences...2004; revision accepted 8 December 2004) Abstract–Impact and geothermal modeling was performed to explain...alteration in a 4 km marine complex crater at K‰rdla, Estonia. The impact modeling was used to simulate the...the formation of the crater and the post-impact temperature distribution in crater environment. The geothermal |  | | Journal (article/letter/editorial) | | Basin in SW Germany is a well-preserved complex impact structure characterized by a prominent central...Jurassic (Oxfordian) limestones from the southeastern crater rim domain are commonly covered by faint coatings...rocks; from the crystallinemetamorphic Variscan crater basement; or, alternatively, these coatings might...meteorite, which may have been remobilized during post-impact hydrothermal activity. We here discuss the most...shatter cone surfaces. Keywords: Steinheim, impact crater, shock metamorphism, shatter cones, meteorites |  | Simpson, S.L., Osinski, G.R., Longstaffe, F.J., Schmieder, M., Kring, D.A. (2020) Hydrothermal alteration associated with the Chicxulub impact crater upper peak-ring breccias. Earth and Planetary Science Letters, 547. 116425pp. doi:10.1016/j.epsl.2020.116425 | Journal (article/letter/editorial) | | Hydrothermal alteration associated with the Chicxulub impact crater upper peak-ring breccias S.L. Simpson a,∗ ,...McKinnon Keywords: Chicxulub impact impact generated hydrothermal systems impact cratering astrobiology a...a b s t r a c t The 66 Ma, ∼180 km Chicxulub impact structure in the northern Yucatán peninsula and southern...Gulf of Mexico is the best-preserved large impact crater on Earth with a well-developed peak ring. The...layer of impact melt rocks (Units 3A and B); melt-bearing breccias (Units 2A–C); and post-impact sedimentary |  | Tillberg, Mikael, Ivarsson, Magnus, Drake, Henrik, Whitehouse, Martin J., Kooijman, Ellen, Schmitt, Melanie (2019) Re-Evaluating the Age of Deep Biosphere Fossils in the Lockne Impact Structure. Geosciences, 9 (5) 202 doi:10.3390/geosciences9050202 | Journal (article/letter/editorial) | | the Age of Deep Biosphere Fossils in the Lockne Impact Structure Mikael Tillberg 1,2, *, Magnus Ivarsson...Published: 7 May 2019 Abstract: Impact-generated hydrothermal systems have been suggested...possibly beyond. Fossil evidence from a handful of impact craters worldwide have been used to support this...previously described fungal fossils from the Lockne crater (458 Ma), Sweden. Based on in-situ Rb/Sr dating...place at least 100 Myr after the impact event, thus long after the impact-induced hydrothermal activity |  | | Journal (article/letter/editorial) | | Numerical modeling of impact-induced hydrothermal activity at the Chicxulub crater Oleg ABRAMOV†* and David...2006) Abstract–Large impact events like the one that formed the Chicxulub crater deliver significant amounts...activity. We report on numerical modeling of Chicxulub crater cooling with and without the presence of water...the hydrothermal activity to the center of the crater. The temperatures and fluxes of fluid and vapor...dominant mechanism of heat transport in most of the crater, and significant amounts of heat being delivered |
|
