Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Ansgar Greshake"'
Autor:
Philippe Schmitt-Kopplin, Marco Matzka, Alexander Ruf, Benedicte Menez, Hasnaa Chennaoui Aoudjehane, Mourad Harir, Marianna Lucio, Jasmine Hertzog, Norbert Hertkorn, Régis D. Gougeon, Victor Hoffmann, Nancy W. Hinman, Ludovic Ferrière, Ansgar Greshake, Zelimir Gabelica, László Trif, Andrew Steele
Publikováno v:
Science Advances
Science Advances, 2023, 9 (2), pp.eadd6439. ⟨10.1126/sciadv.add6439⟩
Science Advances, 2023, 9 (2), pp.eadd6439. ⟨10.1126/sciadv.add6439⟩
We report a huge organic diversity in the Tissint Mars meteorite and the sampling of several mineralogical lithologies, which revealed that the organic molecules were nonuniformly distributed in functionality and abundance. The range of organics in T
Autor:
Matthew J. Genge, Luke Alesbrook, Natasha V. Almeida, Helena C. Bates, Phil A. Bland, Mark R. Boyd, Mark J. Burchell, Gareth S. Collins, Luke T. Cornwell, Luke Daly, Hadrien A. R. Devillepoix, Matthias van Ginneken, Ansgar Greshake, Daniel Hallatt, Christopher Hamann, Lutz Hecht, Laura E. Jenkins, Diane Johnson, Rosie Jones, Ashley J. King, Haithem Mansour, Sarah McMullan, Jennifer T. Mitchell, Gavyn Rollinson, Sara S. Russell, Christian Schröder, Natasha R. Stephen, Martin D. Suttle, Jon D. Tandy, Patrick Trimby, Eleanor K. Sansom, Vassilia Spathis, Francesca M. Willcocks, Penelope J. Wozniakiewicz
Publikováno v:
Meteoritics & Planetary Science.
Fusion crusts form during the atmospheric entry heating of meteorites and preserve a record of the conditions that occurred during deceleration in the atmosphere. The fusion crust of the Winchcombe meteorite closely resembles that of other stony mete
Autor:
Ansgar Greshake, Joerg Fritz
Publikováno v:
Planetary Geology ISBN: 9783319651774
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264562420599f5d0fbd0ae3d33aedab6
https://doi.org/10.1007/978-3-319-65179-8_6
https://doi.org/10.1007/978-3-319-65179-8_6
Publikováno v:
Meteoritics and Planetary Science
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::65c878d6fb47dd1982d21ddb375807a1
https://gfzpublic.gfz-potsdam.de/pubman/item/item_3290890
https://gfzpublic.gfz-potsdam.de/pubman/item/item_3290890
Autor:
Detlef Rost, Elmar K. Jessberger, Thomas Stephan, Ansgar Greshake, Jörg Fritz, Iris Weber, Dieter Stöffler
Publikováno v:
Meteoritics & Planetary Science. 44:1225-1237
A rare three-phase symplectite consisting of Ca-rich pyroxene, Fe-rich olivine, and a silica phase is frequently found rimming pyroxene in the Martian meteorite Los Angeles. This assemblage is usually interpreted as the breakdown product of metastabl
Autor:
Richard Wirth, Monika Koch-Müller, Ansgar Greshake, Dieter Rhede, Michail N. Taran, Irmgard Abs-Wurmbach
Publikováno v:
Physics and Chemistry of Minerals
Synthetic ringwoodite γ-(Mg1−x Fe x )2SiO4 of 0.4 ≤ x ≤ 1.0 compositions and variously colored micro-grains of natural ringwoodite in shock metamorphism veins of thin sections of two S6-type chondrites were studied by means of microprobe analy
Publikováno v:
Meteoritics & Planetary Science. 40:1393-1411
We investigated the transfer of meteorites from Mars to Earth with a combined mineralogical and numerical approach. We used quantitative shock pressure barometry and thermodynamic calculations of post-shock temperatures to constrain the pressure/temp
Publikováno v:
Meteoritics & Planetary Science. 40:1413-1431
The Tagish Lake carbonaceous chondrite consists of heavily aqueously altered chondrules, CAIs, and larger mineral fragments in a fine-grained, phyllosilicate-dominated matrix. The vast majority of the coarse-grained components in this meteorite are s
Publikováno v:
Geochimica et Cosmochimica Acta. 68:2359-2377
The basaltic Martian meteorite Yamato 980459 consists of large olivine phenocrysts and often prismatic pyroxenes set into a fine-grained groundmass of smaller more Fe-rich olivine, chromite, and an interstitial residual material displaying quenching
Autor:
Klaus Keil, Ansgar Greshake, Alexander N. Krot, Michael E. Zolensky, Michael K. Weisberg, Anders Meibom
Publikováno v:
Meteoritics & Planetary Science. 37:281-293
Fine-grained, heavily-hydrated lithic clasts in the metal-rich (CB) chondrites Queen Alexandra Range (QUE) 94411 and Hammadah al Hamra 237 and CH chondrites, such as Patuxent Range (PAT) 91546 and Allan Hills (ALH) 85085, are mineralogically similar