 | Benzerara, Karim, Menguy, Nicolas, Guyot, François, Vanni, Christian, Gillet, Philippe (2005) TEM study of a silicate-carbonate-microbe interface prepared by focused ion beam milling. Geochimica et Cosmochimica Acta, 69 (6) 1413-1422 doi:10.1016/j.gca.2004.09.008 | Journal (article/letter/editorial) | | Benzerara et al. (2003) have shown that the Tatahouine meteorite is a pertinent object for studying the weathering... K. Benzerara et al. Some fragments of this meteorite, which is almost exclusively composed of orthopyroxene...arid south Tunisia in 1931 (Lacroix, 1932). New fragments were then collected in the Tatahouine sand 70...X-ray Spectrometry (EDXS) Maps The gold-coated meteorite fragments collected in 2000 and described in Benzerara...calcite nanocrystals cluster, and the underlying meteorite (see location on Fig. 2a). 3.2. Chemistry of the |  | Benzerara, Karim, Guyot, François, Barrat, Jean Alix, Gillet, Philippe, Lesourd, Maurice (2002) Cristobalite inclusions in the Tatahouine achondrite: Implications for shock conditions. American Mineralogist, 87 (8) 1250-1256 doi:10.2138/am-2002-8-925 | Journal (article/letter/editorial) | | 1250–1256, 2002 Cristobalite inclusions in the Tatahouine achondrite: Implications for shock conditions...Cedex, France ABSTRACT The mineralogy of the Tatahouine diogenite was investigated by optical microscopy...indicates shock effects in the meteorite. The shock history of the meteorite must be consistent with the...EXPERIMENTAL TECHNIQUES The fall of the Tatahouine meteorite was observed in 1931 (Lacroix 1931). It...Barrat et al. 1999; Gillet et al. 2000a). This meteorite was classified as a diogenite based on mineralogical |  | BARRAT, J. A., GILLET, Ph., LESOURD, M., BLICHERT-TOFT, J., POUPEAU, G. R. (1999) The Tatahouine diogenite: Mineralogical and chemical effects of sixty-three years of terrestrial residence. Meteoritics & Planetary Science, 34 (1) 91-97 doi:10.1111/j.1945-5100.1999.tb01734.x | Journal (article/letter/editorial) | | Meteoritical Society, 1999 Printed in USA The Tatahouine diogenite: Mineralogical and chemical effects...3) Abstract-Comparison between clasts of the Tatahouine diogenite, collected the day of the fall in 193...very short time. INTRODUCTION The recovery of a meteorite immediately after its fall is exceptional. Most...if the mineralogical or chemical features of a meteorite are pristine or have been overprinted by its terrestrial...quantify the intensity of surficial processes on a meteorite is to compare various fragments of an object collected |  | Gillet, Ph., Barrat, J.A., Heulin, Th., Achouak, W., Lesourd, M., Guyot, F., Benzerara, K. (2000) Bacteria in the Tatahouine meteorite: nanometric-scale life in rocks. Earth and Planetary Science Letters, 175 (3) 161-167 doi:10.1016/s0012-821x(99)00291-5 | Journal (article/letter/editorial) | | elsevier.com/locate/epsl Bacteria in the Tatahouine meteorite: nanometric-scale life in rocks Ph. Gillet...weathering and related biological activity in the Tatahouine meteorite. Scanning and transmission electron microscopy...obtained on the weathered samples of the Tatahouine meteorite and surrounding soil show two types of bacteria-like...bacteria-like forms described in the Martian meteorite ALH84001. All the previous observations strongly...biological culture of the soil surrounding the meteorite pieces. The present results show that bacteriomorphs |  | Barrat, J.A., Jambon, A., Ferrière, L., Bollinger, C., Langlade, J.A., Liorzou, C., Boudouma, O., Fialin, M. (2014) No Martian soil component in shergottite meteorites. Geochimica et Cosmochimica Acta, 125. 23-33 doi:10.1016/j.gca.2013.09.033 | Journal (article/letter/editorial) | | abundances of a glass pod from the EETA 79001A meteorite are identical to those of the host lithology,...org/10.1016/j.gca.2013.09.033 fall of a Martian meteorite was observed in Tissint, Morocco. Abundant material...parent body. If this hypothesis is correct, this meteorite provides an unexpected opportunity to study the...processing of the meteorite in the early eighties) were generously provided by the NASA meteorite working group...pockets. Areas containing relict phases (olivine, chromite. . .) were not included in the calculations. Trace |  | | Journal (article/letter/editorial) | | (Nakamura et al. 2011). Grains and inclusions of chromite, chlorapatite, merrillite, troilite, taenite,...Readers interested in more details of chondritic meteorite classification, petrologic types, and associated...Terrestrial weathering interferes with the use of meteorite mineralogy and chemistry as windows into the preterrestrial...numerous OC finds have been recovered, desert meteorite finds have been exposed to terrestrial conditions...easily discerned, and widespread phenomenon of meteorite weathering (e.g., Buddhue 1957). Oxidation of |  | JAMBON, A., BARRAT, J. A., SAUTTER, V., GILLET, Ph., GÖPEL, C., JAVOY, M., JORON, J. L., LESOURD, M. (2002) The basaltic shergottite Northwest Africa 856: Petrology and chemistry. Meteoritics & Planetary Science, 37 (9) 1147-1164 doi:10.1111/j.1945-5100.2002.tb00885.x | Journal (article/letter/editorial) | | with an average of -50 vol% maskelynite. The meteorite is highly fractured at all scales. The bulk composition...in agreement with the martian origin of this meteorite. On the basis of grain size, pyroxene zoning and...on NWA 856, or Djel Ibone, the third martian meteorite from Morocco. It is a single stone of 320 g with...crust (Fig. la). It was found in April of 2001 by meteorite dealers in the south of Morocco and the exact...(Fig. 3). Pyroxenes rarely include oxides (e.g., chromite), unlike NWA 480. Augite and pigeonite form separate |  | | Journal (article/letter/editorial) | | http://meteoritics.org Laboratory simulation of terrestrial meteorite weathering using the Bensour (LL6) ordinary chondrite...experiment 3, condensed boiling water was dripped onto meteorite subsamples within a Soxhlet extractor. Solutions...accumulation of weathering products within a group of meteorite finds, usually ordinary chondrites whose terrestrial...for example Holbrook (Bland et al. 1998a) and Tatahouine (Barrat et al. 1998), or has been determined...bulk chemical or isotopic composition of the meteorite resulting from acquisition of ions from the Earth’s |  | | Journal (article/letter/editorial) | | Nannobacterial alteration of pyroxenes in martian meteorite Allan Hills 84001 ROBERT L. FOLK1 AND LAWRENCE...revised/arm 2002 May 2) Abstract-In martian meteorite Allan Hills (ALH) 84001, this scanning electron...remains a valid question. INTRODUCTION Martian meteorite Allan Hills (ALH) 8400 I, found lying in the Antarctic...bacteria cultured from subsurface basalts on Earth. Meteorite ALH 84001 is a piece of the original martian crust...orthopyroxene (hypersthene), with 10% olivine, chromite, and other accessories (Mittlefehldt, 1994; Treiman |  | | Journal (article/letter/editorial) | | majority of the coarse-grained components in this meteorite are surrounded by continuous, 1.5 to >200 μm wide...Tagish Lake are very similar throughout the entire meteorite and independent of the nature of the enclosed...core object and more gradational contacts to the meteorite matrix. Compared to the matrix, the rims are much...rims differ significantly from matrix and bulk meteorite only by being depleted in Ca. X-ray elemental...texture of the Tagish Lake meteorite. INTRODUCTION The Tagish Lake meteorite, which fell on January 18 |  | | Journal (article/letter/editorial) | | The acronym SNC comes from the three classes of meteorite involved: S is for shergottites, which are basalts...basalts and peridotites, named for the type meteorite Shergotty; N is for nakhlites, which are clinopyroxenites...clinopyroxenites, named for the type meteorite Nahkla; and C is for Chassigny, which is a unique dunite. ALH84001...is also grouped with the SNC meteorites. This meteorite classi cation is awkward, and it has been proposed...The ALH84001 meteorite is composed almost entirely of low-calcium pyroxene and chromite. Basaltic meteorites |  | | Journal (article/letter/editorial) | | parts of some meteorites, will only occur if the meteorite is especially metal-rich, or has a low primary...but occur in abundance in only one ‘hot’ desert meteorite, Daraj 014. The majority of Fe-rich weathering...concentrations. Here we report results of a study of meteorite terrestrial weathering products using high-resolution...weathering products do not form before the fall of the meteorite. The work reported here has focused on determining...metal 8.39%, troilite 5.8%, clinopyroxene 4.97%, chromite 0.78%, apatite 0.54% and ilmenite 0.24%. The porosities |  | | 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 |  | | Journal (article/letter/editorial) | | circumstances are clear for only three. Nakhla, the meteorite eponym for the group, was observed to fall in...Antarctica, but far from the Yamato samples (Antarctic Meteorite Newsletter, 2004). The histories of the other...nakhlites are clouded. Lafayette was recognized as a meteorite in 1931 in the Purdue University geology department...al. (2003), Misawa et al. (2003a), Antarctic Meteorite Newsletter (2004). in the 1920s (Nininger, 1935)...from recognition of the Governador Valadares meteorite (Berkley et al., 1980), but mostly because of |  | | Journal (article/letter/editorial) | | (Dhofar 007) and noncumulated (NWA 011). Results: A meteorite shower, 37 pieces weighing a total of 21,270 g...plagioclase. Accessories are metal, troilite, and chromite. Shock features include frachning (melt veins...plagioclase (47.2), Fe, Ni-metal (1.6), troilite (I.]), chromite (~0.5).and phosphates (~0.5). Pyroxene is presented...is 0.39 wt%. Plagioclase is anorthite (A%-9z). Chromite is characterized by Cr/(Cr + Al) = 0.78 and Fd(Fe...REE pattern supports a cumulate type of this meteorite also. At the other side the data of NWA 011 are |  | | Journal (article/letter/editorial) | | 63 YEARS OF TERRESTRIAL RESIDENCE IN THE TATAHOUINE METEORITE. J. A. Barrat', Ph. Gilletz, Th. Heulin3...contamination processes. Comparison between clasts of the Tatahouine diogenite collected the day of the fall in 1931...0-isotopic analysis of the carbonates within the Tatahouine meteorite and the underlying ground confirm their...were observed on the external surfaces of the meteorite fragments collected in 1994 and on gravels, gun...bacteria clusters from the soil in which the meteorite samples were embedded. This study emphasizes the |  | | Book | | differences among c o m p o n e n t s of the Allende meteorite. Smithsonian Contrib. Earth Sci., 1 9 : 84—95...3 COSMOCHEMISTRY OF THE RARE EARTH ELEMENTS: METEORITE STUDIES WILLIAM V. BOYNTON 3.1. Introduction...into the later processes that occurred on the meteorite parent bodies. This review will first provide...abundances) in Ca,Al-rich inclusions in the AUende meteorite. These inclusions will be discussed in more detail...exceptions all of the CAI studied are from one meteorite, Allende, a member of the CV3 class of carbonaceous |
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