 | | Journal (article/letter/editorial) | | unequilibrated chondrites also shows that each meteorite has been metamorphosed, with the alteration ranging...chondrites: a porous ‘elastic’ matrix, found in Chainpur and Weston and composed of angular fragments of...FiefSOl-ite Bishmpur, India Bj urbBle, Finland Bremen&&, Gemy Chainpur , India Dhajala, India Hallingeberg,...Khohar, India Krymka, Ukraine bkzb Madams, Romania Ngmi, Java Parnallee, India Semarkona, India Sete Lag&s...electron microprobe analyses as possible for each meteorite. Standards used were augite (Si, T’i), olivine |  | | Journal (article/letter/editorial) | | 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 |  | | Report (volume) | | THE GEOLOGICAL SURVEY OF INDIA, RECORDS OF THE GEOLOGICAL SURVEY OF INDIA. tt Volume Published...I.M.E., B.Sc., Survey 1—16 M.A., F.G.S. of India. F.G.S.. By Cyril Fox, from the Salt Range. Assistant...Assistant Superintendent, . (With Plates 11 to 13) of India. . Steatite Deposits, Idar State. F.G.S., Superintendent... 102—126 127—132 3. By H. H. Survey of India of India during 1911. C. I.E., F.G.S., Director, Geological...Survey of India for the year 1911. H. H. Hayden, . . Middlemiss» B.A., Survey of India. (With Plates |  | | Journal (article/letter/editorial) | | the same chemicalmineralogical type as the host meteorite. On the basis of the latter observation, he concluded...petrographic and microprobe study of chondrules in this meteorite, the author encountered several which contain...report to describe and interpret these chondrules. meteorite types. WAHL 1111 R. T. DODD 1112 TEE SHARPS...1967; see Fig. 1) and that two analyses of the meteorite differ significantly in their values for total...BremervGrde lMez&Madaras Hallingeberg Bishunpur Chainpur Type H-3 H-3 H-3 L-3 L-3 L-3 LL-3 counts) 1701 |  | | Journal (article/letter/editorial) | | the previous classification of the Chervettaz meteorite as an L5 equilibrated chondrite (Mason, 1963)...petrologic type 5 chondrites (Scott et al., 1986). The meteorite shows weak shock deformations indicating a shock...BUNCHT. E., KE!L K. AND SNETSINGER K. G. (1967) Chromite composition in relation to chemistry and texture...Cosmochim. Acta 31,1569-1582. LUGEON M. (1904) La meteorite du bois de la Chervettaz pres Chatillens, Bull...ALHA77043 ".""._. " "._-" _ " _." ". " "_ -."""_ " " Chainpur C2 core 64.7 0.13 23.5 0.31 1.3 n.d. 2.1 0.25 |  | | Journal (article/letter/editorial) | | troilite, etc.; comprising - 99% of the meteorite), chromite and carbon (- O.WJ.7%), and Q (a poorly...solubility in HN03, comprising -0.05% of the meteorite but containing most of the Ar, Kr, Xe and a neon...component enriched in the light isotopes. The chromite in these meteorites is compositionally peculiar...side-by-side in different minerals of the same meteorite: strongly fractionated Xe in ferrichromite and...(1) A small (0.5%) residue, remaining when the meteorite is dissolved in HCl-HF, contains 3O-Wk of the |  | | Journal (article/letter/editorial) | | exceptionally large chondrule in the Parnallee meteorite By R. A. BINNS Department of Geology, University...in diameter, has been found in the Parnallee meteorite, and is described, with analysis. An estimate...the meteorite excluding metal and sulphide. ECTIONS sawn across the 134-1b. Parnallee meteorite (B.M...glass (fig. 2). The glass also contains subhedral chromite granules about 10/x across, and tiny aeicular...Photograph of a sawn surface on the Parnallee meteorite, showing the exceptionally large chondrule. Scale |  | | Journal (article/letter/editorial) | | of all available chondrites in several major meteorite collections, * 3. Rnally, we included ehondrites...due to the polymict (WAHL, 1952) nature of the meteorite (VAN SCHMUS,1966)*. In the others it may have...fragments are less heterogeneous than those of the meteorite as a whole, suggesting more advanced xecr~t~zat~on...expressed the “In brief, Chainpur is an olivineproblem well with reference to Chainpur: hypersthene chondrite...Bishunpur Bjurbijle Bremerviirde Carraweena Castalia Chainpur Clovis No. 1 Cynthiana Geidam Goodland Hallingeberg |  | | Journal (article/letter/editorial) | | MARCH 1969, VOL. 3 7 , NO. 285 The Siena meteorite: Mineralogy and Chemistry B. B A L D A N Z A AND...distribution of the fragments of the Siena, Italy, meteorite (I I'6 ~E., 43q ~N.). A complete individual, weighing...Washington; total 3674"45 g). Mineralogically the Siena meteorite was never exhaustively studied: some fragments...workers. Therefore we decided to re-examine this meteorite in order to THE SIENA M E T E O R I T E 35...following Krinov (i96o), with the dense mass of the meteorite. The rear surface presents a rough fracture surface |  | | Journal (article/letter/editorial) | | compositional variabilities for any particular meteorite are small, usually less than 5 weight percent...CouposrrroNsor Orrvrvn eun Pvnoxnxr ru Mrrnonnrs Meteorite ;Ku"ol Odessa Campo ilel Cido Linwood. Pitts...concern here. between olivine and coexisting chromite (Jackson, 1969) give generally higher values,...based on the ideality of both the olivine and chromite solutions. It is theoretically possiblethesesolutions...character of the olivine solution by assuming these meteorite distribution data represent an equilibrium distribution |  | Berkley, John L, Brown, H.Gassaway, Keil, Klaus, Carter, N.L, Mercier, J-C.C, Huss, Glenn (1976) The Kenna ureilite: an ultramafic rock with evidence for igneous, metamorphic, and shock origin. Geochimica et Cosmochimica Acta, 40 (12) 1429-1437 doi:10.1016/0016-7037(76)90079-x | Journal (article/letter/editorial) | | New York 11790, U.S.A. and GLENN Huss American Meteorite Laboratory, Denver, Colorado 80201, U.S.A. (Received...14.2 cm; it is the seventh known ureilite. The meteorite is composed of xenoblastic olivine (Fo,~.~), commonly...Mg-rich augite to augite), andesine, K-feldspar, chromite, and siliceous CaO- and alkali-rich glasses of...left and lower right edge of the face shown. The meteorite is dark brown to nearly black on the exterior...finely disseminated nickel-iron metal, and rare chromite. Modal analysis indicates 11% matrix, 68% olivine |  | | Journal (article/letter/editorial) | | (Table 1). Chondrules CH-29 and CH-G are from Chainpur. CH-29 has an olivineepyroxene porphyritic texture...and matrix. BUNCH P{ rtl. (1967) reported that chromite content increases in chondrites from lower to...of the Cr,03 is present in minerals other than chromite (presumably silicates), and that in the higher...higher petrologic types, progressively more chromite is formed. Since Cr20, in chondrules decreases from lower...matrix, where chromite is formed at preferred nucleation sites. Occasionally. chromite will also nucleate |  | | Journal (article/letter/editorial) | | individual histories before they accumulated in the meteorite parent bodies [1,2]. Though some are quenched...used bulk analyses o f 61 chondrules from the Chainpur (LL-3) chondrite to evaluate various chondrule...for the opaque minerals, metal, troilite, and chromite. As these are sparse (typically less than 1%)...pyroxene and glass, with minor metal, troilite, and chromite, was analyzed for all of the elements listed above...Bulk analyses of individual chondrules from the Chainpur chondrite show more or less smooth normative variation |  | | Journal (article/letter/editorial) | | a/Z > 0.2, and for many elements o/Z Table 1 Meteorite, number of chondrules analyzed* Tieschitz H3...14 <0.01-l 1.4 0.08 Meteorite, chondrules number of analyzed* Tieschitz H3...Sindhri H5, 20 Saratov L4, 2s Tennasilm L4, 21 Chainpur LL3, 22 Ngawi LL3, 10 Soko Banja LL4, ...Mn-So Mn-Cr Cr-Ir Cr-So So-Ir cc&u Co-Ir Ir-Cu Chainpur 21 0 0 0 0 0 0 Ngewi All LL3 +:“+ ::+++ ++“+...MASON (1966) states that most Cr is present as chromite, FeCr,O,. The data of 1924 T. W. OSBORN,R. |  | | Journal (article/letter/editorial) | | 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...*Daubreelite +Lawrencite Magnesite Calcite Magnetite Chromite Quartz Tridymite Chlorapatite Merrillite (Whitlockite)...weathering. In 1955, therefore, to specializein meteorite mineralogy might well have beenconsideredthe refugeol |  | | Journal (article/letter/editorial) | | Total IIl V Via VIb VII VIII IX Ngawia Chainpur b 3 6 . 3 4 3 6 . 4 5 36.98 3 8 .4 6 3 5 .6 7...Analyses (wt. % )c NiFe < 0.2 0.3 FeS 12.7 2.5 Chromite 0.7 0.8 Silicates 86.6 97.7 0.2 4.8 1.0 94.0...wet-chemically analyzed LL-chondrites, Ngawi and Chainpur. I n addition, constituent phase compositions...modal analyses of FeS. I n contrast, metal and chromite modal contents are somewhat inconsistent with...suggest that, in addition to the moon and large meteorite parent bodies, the terrestrial planets also underwent |  | | Journal (article/letter/editorial) | | materials (see, e.g., [22,23]), which was applied for meteorite studies. Another option of precise measurements...Mg)SiO3 with different Ca content, troilite FeS, chromite FeCr2 O4 , hercynite FeAl2 O4 , ilmenite FeTiO3...appear with the fusion crust formation, when meteorite passes through the Earth atmosphere with a very...millimeter-sized silicate aggregates found in the meteorite matrix. Carbonaceous chondrites are divided in...“M”, “V”, etc., means the first letter of the meteorite name found the first in correspondent group, e |  | | Journal (article/letter/editorial) | | t u d y of 96 chondrules in the Sharps (It-3) meteorite, reported in this journal (Dodd, 1971b), the writer...has also been explained b y copreeipitation of chromite (Butler, 1972). The olivines considered here contain...observation of Bunch et al. (1967) that the abundance of chromite in ordinary chondritcs increases markedly in this...(1968) Bunch, T. E., Keil, K., Snetsinger, K. G. : Chromite composition in relation to chemistry and texture... : The petrology of chondrules in the Sharps meteorite. Contr. Mineral. and Petrol. 31,201-227 (1971b) |  | | 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 |  | | Journal (article/letter/editorial) | | interpreted as being related to impact events on meteorite parent bodies where melting and reheating of proto...textures were also described from terrestrial meteorite impact craters (Grieve et aL, 1974). Independent...Independent evidence suggests that parent meteorite bodies also experienced extensive impact modifications (Kurat...somewhat in having minor amounts of feldspar and chromite , a large anhedral olivine grain that is probably...impact-related ejecta blankets. Evidence that meteorite parent bodies experienced similar impact histories |  | | Journal (article/letter/editorial) | | composition. In addition to these types, dark-zoned and chromite chondrules are also present in the Yamato meteorites...modification of orthodox chondrules by heat or shock. A chromite chondrule was also described by RAMDCIHR(1967)...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 |  | | Journal (article/letter/editorial) | | the surface, so rapidly that portions of the meteorite and the ground which were in contact were vaporized...people wondered about what would happen if a large meteorite fell to the ground, but they were limited by the...meteorites and the corollary that the size of the meteorite was quite small relative to the crater it could...an equal mass of TNT. The kinetic energy of a meteorite changes with the square of the velocity and hence...far more probable that the angle of impact of a meteorite with earth or moon is low rather than high. Previously |  | | 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 |  | | Journal (article/letter/editorial) | | were made of replicate samples from the same meteorite. Various sources of error in the method, including...attempt to contrast self-consistent models of meteorite evolution. In these applications of meteoritic...analyses on different samples, even from the same meteorite, whether the data reflect either basic geochemical...silicate phases with lesser amounts of phosphates, chromite, spinel and Na-Al rich glass. Metal is frequently...experimental procedures follows. Sample Preparation Meteorite samples, of masses ranging from 14 to 1238 mg |  | | Journal (article/letter/editorial) | | 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 |
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