Zobrazeno 1 - 10
of 122
pro vyhledávání: '"B. Spettel"'
Publikováno v:
International Kimberlite Conference Extended Abstracts: 1982.
Autor:
Herbert Palme, Ludolf Schultz, Addi Bischoff, T. Schönbeck, B. Spettel, Gerlind Dreibus, Jutta Zipfel
Publikováno v:
Meteoritics & Planetary Science. 45:1488-1501
– We present a detailed study of mineralogy, chemistry, and noble gases of the Neuschwanstein (EL6) chondrite that fell in 2002 in southern Germany. The meteorite has an unbrecciated texture and exhibits only minor shock features. Secondary weather
Autor:
Akio Suzuki, Herbert Palme, B. Spettel, T. Sato, Makoto Kimura, D. Wolf, Hideyasu Kojima, Toshiko K. Mayeda, Hajime Hiyagon, Robert N. Clayton
Publikováno v:
Meteoritics & Planetary Science. 37:1417-1434
In this paper we report petrological and chemical data of the unusual chondritic meteorites Yamato (Y)-792947, Y-93408 and Y-82038. The three meteorites are very similar in texture and chemical composition, suggesting that they are pieces of a single
Autor:
Herbert Palme, Ernst Zinner, A. El Goresy, Mikhail A. Nazarov, S. Matsunami, B. Spettel, Y. Lin
Publikováno v:
Geochimica et Cosmochimica Acta. 66:1459-1491
Inclusion 101.1 from the CV3 carbonaceous chondrite Efremovka is a compact Type A Ca-Al-rich inclusion (CAI) highly enriched in ultrarefractory (UR) oxides. It is the first complete CAI with a UR rare earth element (REE) pattern found in a CV3 chondr
Publikováno v:
Geochimica et Cosmochimica Acta. 65:2161-2170
The solubility of rhenium (Re) in a haplobasaltic melt (anorthite-diopside eutectic composition) has been experimentally determined using the mechanically assisted equilibration technique at 1400°C as a function of oxygen fugacity (10−12 < fO2 ≤
Publikováno v:
Meteoritics & Planetary Science. 35:95-106
— In 1998, Dar al Gani (DaG) 476 was found in the Libyan desert. The meteorite is classified as a basaltic shergottite and is only the 13th martian meteorite known to date. It has a porphyritic texture consisting of a fine-grained groundmass and la
Publikováno v:
Meteoritics & Planetary Science. 35:161-171
— All groups of chondritic meteorites contain discrete grains of forsteritic olivine with FeO contents below 1 wt% and high concentrations of refractory elements such as Ca, Al, and Ti. Ten such grains (52 to 754 μg) with minor amounts of adhering
Autor:
U. Herpers, Addi Bischoff, D. Wolf, P. W. Kubik, S. Neumann, Ludolf Schultz, Ian A. Franchi, Robert N. Clayton, A. B. Verchovsky, Herbert Palme, Thomas Faestermann, Gunther Korschinek, B. Spettel, A. S. Sexton, C. T. Pillinger, Klaus Knie, Toshiko K. Mayeda, Silke Merchel, Rolf Michel, D. Weber, G. Weckwerth, H. W. Weber
Publikováno v:
Meteoritics & Planetary Science. 33:1243-1257
— Lunar meteorite Dar al Gani 262 (DG 262)—found in the Libyan part of the Sahara—is a mature, anorthositic regolith breccia with highland affinities. The origin from the Moon is undoubtedly indicated by its bulk chemical composition; radionucl
Publikováno v:
Geochimica et Cosmochimica Acta. 60:1171-1180
The solubility of tungsten (W) in a haplobasaltic melt has been determined as a function of oxygen fugacity in the temperature range 1300–1500°C using the mechanically assisted equilibrium technique of Dingwell et al. (1994), and at 1600–1700°C
Autor:
Jochen Schlüter, D. Borchuluun, Addi Bischoff, C. Byambaa, Ludolf Schultz, D. Garamjav, B. Spettel, O. Gerel, V. F. Buchwald, L. Bauinnyam, T. Loeken, H. W. Weber
Publikováno v:
Meteoritics & Planetary Science. 31:152-157
— The mineralogy and composition of six Mongolian meteorites were studied in some detail. Previously, only limited information existed about these rocks, and some were still unclassified. The six meteorites include three ordinary chondrites and thr