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| common occurrence of minerals belonging to the clinoenstatite-clinohypersthene series, the rarity of calcium-rich...2% TiO2 and 10% A1,O3) in the Angra des Reis meteorite, meteoritic OH' .o A M~Z $1206 C . E . ...compositions in meteorites. A: enstatite and clinoenstatite in enstatiie chondrites and enstatite achondrites;...the frequent occurrence of minerals of the clinoenstatite-elinohypersthene series, contrasted to their...of these data is that the calcium content of clinoenstatite is lower than that of orthoenstatite, a feature |
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| recrystallization.Their dominant pyroxeneis clinoenstatite(probably inverted protoenstatite,seelegend...two olivine-bearing chondrules in the Kota Kota meteorite (BM1905, 355) A. Pale violet-brown glass (finely...troilite Olivine also occurs as inclusions within clinoenstatite (left). Its polysynthetic twinning, subhedral...parting normal to c axes, suggest that the clinoenstatite has inverted from protoenstatite. The scale...fritted margins and cloudy cores,surrounded by clinoenstatite in a large chondrule. All the olivine, including |
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| structure of the unequilibrated ordinary chondrites Chainpur, Mezr-Madaras and Tieschitz: a transmission electron-microscopic...matrices of the unequilibrated ordinary chondrites Chainpur (LL3), MezO-Madaras (L3) and Tieschitz (H3) have...pyroxene, orthopyroxene is very rare. While in Chainpur orthopyroxene occurs only a few unit cells in...affected by shock waves. Chondrule olivines of Chainpur are free of dislocations. Those of Tieschitz contain...shock deformation was found. The dark matrix of Chainpur and Tieschitz contains a mixture of kamacite (4-10 |
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| TECHNIQUES Reconnaissance studies of three UOCs (Chainpur [sections SAO 28,541, Krymka [SAO 121,and Tieschitz...finegrained, were analyzed with a :-micron beam. Clinoenstatite (CEPX) grains were analyzed for Si. Mg, C a...analyzed m 24 chon. drules of the UOCs (10 in Chainpur, 5 in Krymka, and 9 in Tieschitz). Twenty-one...and textures. All pyroxene grains that had clinoenstatite twinning were low-Fe0 pyroxenes, but not all...peaks. Finally, as is the case for the CEPXs, Chainpur has the lowest-Fa olivine (0.20%) among the UOCs |
 | | Journal (article/letter/editorial) |
| kindly provided material from the South Oman meteorite, and to Dr, Brian Mason who read the manuscript... 8., D. H. GnnBN eNn J. E. TnoupsoN (1966) Clinoenstatite in a volcanic rock from the Cape Vogel area...aNl Rom, A. M. (1965) A chondrule in the Chainpur meteorite. 'Stiente, 149, 856-860. Fucns, L. H., C...(1966) Roedderite, a new mineral from the Indarch meteorite. Amer Mineral, 51. 949-955. HorsoN, G.Y.(927) |
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| microscopist, Gustav Tschermak, and the outstanding meteorite collection of that day, the Vienna collection...meteorites. Table 1 traces the development of meteorite mineralogy over the following seventy years. It...extracted sulfur with alcohol from the Cold Bokkeveld meteorite, and later investigators extracted it from other...weathering. In 1955, therefore, to specializein meteorite mineralogy might well have beenconsideredthe refugeol...then, as is illustrated in Table 2.The number of meteorite minerals has more than doubled in the last ten |
 | Olsen, Edward J., Bunch, T.E., Jarosewich, Eugene, Noonan, Albert F., Huss, Glenn I (1977) HAPPY CANYON: A NEW TYPE OF ENSTATITE ACHONDRITE. Meteoritics, 12 (2) 109-124 doi:10.1111/j.1945-5100.1977.tb00336.x | Journal (article/letter/editorial) |
| History Walhington, DC 20560 Glenn I Huss American Meteorite Laboratory Box 2098 Denver, CO 80201 Happy Canyon...survived extensive terrestrial weathering. The meteorite has a cumulate texture, uniform-size euhedral...in Canyon, Texas where it was identified as a meteorite and a slice cut from the central portion. At the...out to be a unique and somewhat problematical meteorite, the Wayside (b) designation was clearly unsatisfactory...SEM photographs on the broken surface of the meteorite, Fig. 1. Much of the interstitial space between |
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| metallsulfide assemblages by shock events in the meteorite parent bodies. However, the morphological similarity...Gupta et al. (I 978b ) interpreted craters on Chainpur chondrules in terms of high-velocity micrometeoroid...PORPHYRITIC PYROXENE BARRED OLIVINE RADIAL PYROXENE CHAINPUR LL3 NfotIH-1251-2 -1251-3 SEMARKDNA LL3 NMNH-1805-3...same as 1n Table 1 highly brecciated portion of meteorite; "recrysta11 ized" clasts not used in chondrule... 1 4 2 COMBINED L(3,4) 66 2(=3%) 7(=11%) CHAINPUR (LL3) SEMARKONA (LL3) NGAWI (LL3)· HAMLET (LL4) |
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| of chondrules and high volatile contents; the meteorite consists wholly of very fine-grained material...LL5 LL6 8 21 * Number of examples of each meteorite type now known is given in its box. t Oxygen fugacities...to our C3, and their I I I b chondrites (e.g. Chainpur, Ngawi, Tieschitz) are all chemically equivalent...the U.S. National Museum for access to their meteorite thin-section collections. K. FREDRr~ssoN, B. MASON...ENGT.A~D J. L. (1965) The rhombic enstatite-clinoenstatite inversion. Year Book 64, pp. 117-120. Carnegie |
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| widely. Capoor clinopyroxenes (clinobronzite-clinoenstatite) are most common in the Yamato-74191. Olivines...Institute of Polar Research, kindly provided meteorite samples. Discussions with Dr K. YANAI of the National...(1971) The petrology of chondrules in the Sharps meteorite. Conrrih. Mirwtrl. Perrol. 31, 201-217. DODD R...petrology of chondrules in the Hallingerberg meteorite. Conr,ih.-.Lfi,r~rcl/. Perml. 47, 97-l 12. DO~D...187-213. FREDRI~SXIN K. (1963) Chondrules and the meteorite parent bodies. Trans. N.Y. Acad. Sci. 25. 756-769 |
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| RELATIONS OF SULFIDE, SULFATE AND SULFUR IN ORGUEIL METEORITE Manuel N. Bass NASA Manned Spacecraft Center...concurrently forming cracks in unheated portions of the meteorite. The minerals of Orgueil indicate a many-stage...recognized for some time by its occurrence in meteorite fusion crusts. Also spherules of wustite have...Territory, Australia are identified as being of meteorite impact origin. Liverpool Crater, lat 12° 24'S;...Washington, D.C In February, 1964, a 55.4-kg stony meteorite was found in a plowed field near Ashmore, Texas |
 | | Book (edition) |
| Village in central. BT Alberta Canada Abee Meteorite Term introduced in 1985. Impact at SA glaciers...Bihar SA West Bengal Peninsula Ajmer City and district in central. BT Rajasthan Akchagylian Europe...Akita City on Japan Sea in N. BT Honshu Japan Al India Akchatau Town in SE Karaganda central. BT Kazakhstan...Honshu. BT Permian SA Honshu SA Japan France India BT sorosilicates orthosilicates silicates minerals...SA SA N393500N424000 Oa eee Peale SOCE Abee Meteorite Altyn Limestone Bearpaw Formation SA Belly River |
 | | Book |
| composition of stone meteorites. How to recognize a meteorite. Brazilian stone meteorites. 7.1. ACHONDRITES...chondrite . Parambu. Acknowledgments . References.^.. Meteorite index. Page 1 3 11 29 35 45 47 48 48 48 61 61...during the agglomeration of the meteorite parent bodies. When a meteorite is seen to fall and material is...is collected, the meteorite is referred to as a fall. On the other hand, a meteorite find is the by-chance...meteorites Figure 1 - The Bendego, Bahia, Brazil iron meteorite, weighing approximately 5,360 kg. Note the irregular |
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| magnetite and pyrrhotite grains in the martian meteorite are of magnetotactic bacterial origin. A6 Meteoritics...four PP chondrules from Bishunpur (LLIL3.1) and Chainpur (LL3.4). Most analyses are of phenocryst cores...160and the smallest enriched in ’ 6 0 [I], whereas Chainpur seems to show the reverse trend [2]. These variations...obtained from NASA; additional chips from each meteorite were examined petrographically at the Smithsonian...iron in a weathered sample of an equilibrated meteorite, with weight gains predicted for an unweathered |
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| Specimen No. 635 !> 32.7 g> Arizona State University Meteorite Collection, Terape, Arizona. Murray carbonaceoxis...was made possible by the existence of excellent meteorite collections at Arizona State University, Tempe...Carleton B. Moore, Director of Research, Center for Meteorite Studies at Arizona State University, for the extended...INTRODUCTION ......................... 1 2. THE METEORITE CIASSZS ..................... k Descriptive...Impactites ................... Classification of the Meteorite Breccias ......... Volatile-rich Breccias ... |
 | Shagam, R., Hargraves, R. B., Morgan, W. J., Houten, F. B. Van, Burk, C. A., Holland, H. D., Hollister, L. C. - Eds. (1972) Studies in Earth and Space Sciences. GSA Memoir 132. Geological Society of America doi:10.1130/mem132 | Report (issue) |
| S. P. Das Gupta, Geological Survey of India, Hyderabad, India; K. S. Deffeyes, Princeton University;...plate margins taken from Le Pichon (1968): (1) India/Eurasia; (2) Africa/Eurasia from Gibraltar to Syria;...America/Antarc¬ tica from Central America to Cape Horn; (4) India/Pacific from the Tonga Islands to central New Zealand;...Stereographic equal angle projection. The arc that fits the India/Eurasia margin is longer than 90° and continues...describ¬ ing the net movement of Africa, Arabia, and India relative to Eurasia from the time of the best-fit |
 | | Book |
| taken from well below the surface of a large meteorite. Typical values of uranium concentrations and...located as close as possible to the outside of a meteorite. separately the ancient P u 2 4 4 / U 2 3 8 ratio...well below the outer surface of the Toluca iron meteorite, as indicated in figure 2(a). In all samples more...time since the beginning of the formation of meteorite parent bodies) and the cooling of phase / to the...intervals for the parent body of the Toluca iron meteorite to reach temperatures of 925°K, 725°K, and 535°K |
 | | Book |
| (a) and scanning images of parl of lhe Edmonton meteorite showing tbe reaction between a lan1ella of schreibcrsite...and Reid, A. M. (1965). A chondrule fron1 the Chainpur n1eteorite. Science, N. Y. 149, 856. Goldstein...Wilk, H. B. and Fredriksson, K. (1964). The Chainpur meteorite. Am. Mus. Novi!. No. 2173. Koffman, D. M... Polymineralic inclusions in the Odessa iron meteorite. Icarus 4, 461. Maurice, F., Seguin, R. and Henoc...the field diopsidehedenbergite-ferrosilite- clinoenstatite. The variation of cell parameters over this |
