 | | Journal (article/letter/editorial) | | Shock-Metamorphic Features of Feldspars from the Xiuyan Impact Crater Feng Yin * and Deqiu Dai Hunan Provincial...University of Science and Technology, Xiangtan 411201, China; ddqygf@163.com * Correspondence: yinfeng@hnust...alkali feldspars in the lithic breccia and suevite from Xiuyan Impact Crater were investigated using...of this crater. For this study, feldspar grains occurring in gneiss clasts in the impact breccia and four...features; high pressure and high temperature; Xiuyan Impact Crater 1. Introduction Feldspar, a framework silicate |  | | Journal (article/letter/editorial) | | Kamenetsk impact structure is a deeply eroded simple crater that formed in crystalline rocks of the Ukrainian...the sequence of lithic breccia has been preserved in the deepest part of the crater to recent time, while...determined by petrographic investigations of lithic breccia that allowed us to determine the impact origin...of the Kamenetsk structure. The erosion of the crater and surrounding target to a minimal depth of 220...Late Miocene age of the sediments overlaying the crater. The deep erosion of the structure suggests it |  | Jaret, Steven J., Phillips, Brian L., King, David T., Glotch, Tim D., Rahman, Zia, Wright, Shawn P. (2017) An unusual occurrence of coesite at the Lonar crater, India. Meteoritics & Planetary Science, 52 (1) 147-163 doi:10.1111/maps.12745 | Journal (article/letter/editorial) | | An unusual occurrence of coesite at the Lonar crater, India Steven J. JARET1*, Brian L. PHILLIPS1, David...basalt at Lonar crater, India. This is the first report of coesite from the Lonar crater. Coesite occurs...identified in natural materials from the Meteor Crater, Arizona (Chao et al. 1960). Since then, coesite...made on samples taken at Ries crater, where stishovite and coesite co-occur but the coesite cuts across...South Africa Saudi Arabia China Ukraine Structure Logoisk Meteor Crater Mien Obolon Obolon Popigai |  | | Journal (article/letter/editorial) | | Superposed Deformations in the Tin Bider Impact Crater (Tinhert Plateau, Central Sahara) D. Belhai and...Talemzane Structure (Maadna) as a Meteoritic Impact Crater by New Criteria D. Belhai and R. Sahoui ................................................. 6234 Breccia Classification of CM Chondrites A. Bischoff, S...Quartz and Local Selective Feldpar Melting in a Lithic Breccia Dike Intersecting Shatter-Coned Target Rocks...Siliciclastics and Carbonates of N. Croatia, Possible Ries Crater Distal Ejecta M. Calogovic, T. Marjanac, S. Fazinic |  | | Book | | illustration: Radar image of the Gosses Bluff impact crater central peak (Australia) acquired in spotlight...Atlas will be very useful to better understand crater formation and evolution and provides a new research...research method that may, hopefully, help new crater ļ¬ndings. Getting through these pages, it is then both...Maria Libera Battagliere, and Maria Virelli Xiuyan, China . . . . . . . . . . . . . . . . . . . . . ....Satellites Constellation COSMO-SkyMed. He was awarded (co-winner) by the American Astronomical Society with |  | Schmieder, M., Tohver, E., Jourdan, F., Denyszyn, S.W., Haines, P.W. (2015) Zircons from the Acraman impact melt rock (South Australia): Shock metamorphism, UāPb and 40 Ar/ 39 Ar systematics, and implications for the isotopic dating of impact events. Geochimica et Cosmochimica Acta, 161. 71-100 doi:10.1016/j.gca.2015.04.021 | Journal (article/letter/editorial) | | of the 30 km-diameter inner depression of the crater area as seen from the top of Mount Stanley; view...Yardea Dacite in an autochthonous monomictic lithic breccia (Fig. 2E), as well as a most likely autochthonous... as well as the small 350 m Monturaqui impact crater in the Chilean Andes (Ugalde et al., 2007), Acraman...volcanic target rocks. 1.2. Use of zircon in impact crater dating Zircon (tetragonal ZrSiO4 with an average...impact craters on Earth (e.g., the 100 m Wabar main crater, Saudi Arabia; Schmieder and Buchner, 2009). As |  | | Journal (article/letter/editorial) | | intact kamacite grains with variable amounts of Ni and Co and terrestrial ferrihydrite haloes to terrestrial...ARGENTINA. Campo del Cielo (S 2730Ā¢, W 6142Ā¢). Impact crater strewn ļ¬eld. At list twenty craters with an age...largest well stated impact crater in South America. It is a 40-km diameter crater in Paleozoic sediments...chondrite fall on September 15, 2007 digging a crater of 15 m. A5 5418 NWA 6588: NEW ANOMALOUS LL6...3), 3% sulļ¬des: pentlandite (Fe = 17.6 Ni = 22.8 Co = 2.1 Si = 2.0 S = 55.3, atom%), stoichiometric pyrite |  | | Journal (article/letter/editorial) | | metallic Cu and CuFe (~85 wt.% Cu, 14 wt.% Fe Ā± < 1wt.% Co, Ni, S) alloys. The Aqueously Altered. MIL 07525...06100. Although the average Co/Ni ratio of metal nodules is nearly solar, Co and Ni are not correlated...chondrites were observed in coarse opaque rims, including Co-rich suessite, a Si-Fe-rich diaplectic glass region...containing variable amounts of Fe, Mg, Al, Ca, Ni, and Co in the A site, and extensive replacement of P in...Argentina. Introduction: A new possible impact crater was discovered during routine flights by Mr. Jorge |  | | Journal (article/letter/editorial) | | Introduction: The Vakkejokk breccia, a Lower Cambrian up to 25 m thick polymict breccia, situated in northernmost...unit in the local stratigraphic sequence [1]. The breccia, which outcrops for several kilometers along a...steep hillside, consists of a basal sedimentary breccia (10-20 m thick) with occasional crystalline mega-clasts...(LPB), overlain by 1-3 m of normal graded polymict breccia, dominated by crystalline clasts (GPB). The GPB...features (PDFs) in quartz grains, that the Vakkejokk breccia was formed by an impact. Material and Methods: |  | | Journal (article/letter/editorial) | | was conducted on the EMP for Mg, Fe, Cr, Si, S, Na, Co, Ti, Al, P, Ni, Mn, and Ca at 20nA and 15kV, with...troilite (20-35wt% S), taenite (up to 64wt% Ni, 0.7wt% Co), and kamacite (7-8wt% Ni). Phases are distributed...collision was possible in case of spatial and temporal co-occurrence of Phaeton II's perihelion and Phaeton...that John's rock did not produce a typical impact crater. Instead, it formed the massive (>50 m3) canal...Tunguska catastrophe. The absence of classic impact crater in Tunguska is similar to several other cases when |
|
