Results 91 to 100 of about 37,639 (216)

Trace element composition of silicate minerals from Kunashak Meteorite (L6)

Записки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in the silicate minerals (olivine, pyroxene and plagioclase) of Kunashak equilibrated ordinary chondrite (L6) is described. No variations in the major element concentrations of the silicate minerals have
Kristina G. Sukhanova, Olga L. Galankina
doaj  

A temporal study of oxygen-rich pulsating variable AGB star, T Cep: Investigation on dust formation and dust properties

, 2011
Pulsation is believed to be the leading cause of dusty mass loss from Asymptotic Giant Branch (AGB) stars. We present a temporal study of T Cep, a long-period Mira variable, using seven ISO SWS spectra, covering a 16-month period over a single pulsation ...
Angela K. Speck, Begemann, Begemann, Benitez, Blommaert, Bohren, Bohren, Bose, Cami, Cami, Cami, Castelaz, Chiar, Corman, Crovisier, de Graauw, DePew, Dijkstra, Gail, Gervais, Hao, Henning, Huffman, Isles, Jäger, Jäger, Kessler, Koike, Lebzelter, Lodders, Marsakova, McDonald, McDonald, Molster, Murata, Nogami, Onaka, Perrin, Perryman, Schweitzer, Sloan, Sloan, Sloan, Spoon, Stroud, Suklima Guha Niyogi, Takashi Onaka, Takigawa, Thompson, Tielens, Tsuji, Van Malderen, Vollmer, Waelkens, Waters, Weigelt, Werner, Woolf, Yamamura, Zijlstra   +59 more
core   +1 more source

Composition and formation conditions of ilmenite and titanomagnenite mineralization in two-pyroxene gabbro Medvedevskoje deposit (Southern Urals). I. Petrochemical and geochemical characteristics of rocks and ores

Литосфера, 2015
In this paper based on new petrochemical and geochemical data with specificity in the compositions of rock-forming and ore minerals were determine the conditions of formation of Ti-Fe-V mineralization in the two-pyroxene gabbro of Medvedevskoje deposit ...
V. V. Holodnov, E. S. Shagalov, T. D. Bocharnikova, E. V. Konovalova   +3 more
doaj   +2 more sources

Lithologic Mapping of HED Terrains on Vesta using Dawn Framing Camera Color Data

, 2013
The surface composition of Vesta, the most massive intact basaltic object in the asteroid belt, is interesting because it provides us with an insight into magmatic differentiation of planetesimals that eventually coalesced to form the terrestrial planets.
Corre, Lucille Le, Gaskell, Robert, Hiesinger, Harald, Li, Jian-Yang, Nathues, Andreas, Raymond, Carol, Reddy, Vishnu, Russell, Christopher T., Sanchez, Juan A., Sierks, Holger, Thangjam, Guneshwar   +10 more
core   +1 more source

Modelling the light-curve of KIC 12557548b: an extrasolar planet with a comet like tail

, 2013
An object with a very peculiar light-curve was discovered recently using Kepler data. Authors argue that this object may be a transiting disintegrating planet with a comet like dusty tail. We calculate the light-curves of stars with such planets and take
Batalha, Bisikalo, Borucki, Bourrier, Brogi, Budaj, Budaj, Burrows, Carroll, Claret, Clover, Cohen, Cuntz, Deirmendjian, Dorschner, Faigler, Galan, Guillot, Guinan, Gurdemir, Hoard, Hubbard, Ip, J. Budaj, Jackson, Jia, Johnson, Jäger, Knutson, Kocifaj, Krejčová, Kuchar, Lanza, Leadbeater, Lecavelier Des Etangs, Lecavelier Des Etangs, Lopez, L’eger, Mandel, Miller, Mura, Muthumariappan, Ordal, Perez-Becker, Rappaport, Rucinski, Sadakane, Sekanina, Shi, Shkolnik, Shkolnik, Southworth, Stellingwerf, Tian, Valencia, Vidal-Madjar, Vidal-Madjar, Vourlidas, Yelle   +58 more
core   +1 more source

Trace elements in the silicate minerals of the Borodino Meteorite (Н5)

Записки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in olivine, low-Са pyroxene and mesostasis from porphyritic and barred chondrules, as well as the pyroxene-olivine aggregate and matrix of equilibrated ordinary Borodino chondrite (Н5) is discussed. No
Kristina G. Sukhanova
doaj  

Electron Microprobe Reintegration Method for Clinopyroxene Breakdown with Lamellae Exsolution

Yankuang ceshi
Pyroxene is an important rock-forming mineral in magmatic to metamorphic rocks, which often possesses certain breakdown texture with lamellae exsolution under temperature and pressure changes.
Xiaoli LI, Lifei ZHANG
doaj   +1 more source

First disk-resolved spectroscopy of (4) Vesta

, 2009
Vesta, the second largest Main Belt asteroid, will be the first to be explored in 2011 by NASA's Dawn mission. It is a dry, likely differentiated body with spectrum suggesting that is has been resurfaced by basaltic lava flows, not too different from the
Carry, Benoît, Dumas, Christophe, Fulchignoni, Marcello, Vernazza, Pierre   +3 more
core   +2 more sources

Garnet–Clinopyroxene Double‐Layered Coronae in a Metagabbronorite From the High‐Grade Metamorphic Gföhl Unit, Moldanubian Zone

Journal of Metamorphic Geology, Volume 44, Issue 4, Page 311-336, May 2026.
ABSTRACT This study investigates garnet–clinopyroxene double‐layered coronae in a metagabbronorite from the high‐grade metamorphic Gföhl Unit (Bohemian Massif). The coronae formed at the interfaces between relic magmatic orthopyroxene, still preserved in the cores of the coronae, and the plagioclase‐rich rock matrix.
Rene Asenbaum, Tereza Nemeškalová, Martin Racek, Vojtěch Janoušek, Julian Portenkirchner, Rainer Abart   +5 more
wiley   +1 more source

Study of the Extraterrestrial Materials at Antarctica, IV. : On the Yamato Meteorites

Antarctic Record, 1974
Additional mineralogical and chemical studies of the Yamato meteorites are under way. The mode analysis and the optical properties in thin sections are examined under a microscope.
Makoto SHIMA, Akihiko OKADA, Masako SHIMA   +2 more
doaj   +1 more source