 | | Journal (article/letter/editorial) | | troilite-rich clast. similar to those that occur in Blithfield. All of these clasts probably formed in the solar...(Rubin, 1983a), Hvittis (EL6) (Rubin, 1983b) and Blithfield (EL6) (Rubin, 1983c). The present study examines...about 5 Ian south of the town of Atlanta in Wino County, Louisiana. A single stone weighing 5.5 kg was...procedures. Analyses of metallic Fe.Ni and schreibersite were also corrected for Co interference from...Fe)S, daubreelite (FeCr2S 4 ) , graphite (C), schreibersite (Fe,NihP, kamacite (Fe,Ni) and martensite (Fe |  | | Journal (article/letter/editorial) | | Printed in The Netherlands 273 [6] The Blithfield meteorite and the origin of sulfide-rich, metal-poor...1983 Revised version received December 9, 1983 Blithfield (EL6) is one of five known enstatite chondrite...1000-10,000°C/Myr. After cooling below - 500°C, Blithfield was quenched, possibly by impact excavation from...and metallic Fe. The troilite-rich clasts in Blithfield and Atlanta (EL6) as well as the troilite-rich...s t 13, 1 9 1 0 , in the t o w n s h i p o f Blithfield, O n t a r i o , C a n a d a [1]. V a n S c h |  | | Report (issue) | | 44.52 Total 98.70 98.86 100.00 (1) Coahuila meteorite; average of three analyses, corresponding to Fe1...Fe1.08 Cr2.08 S4.00 . (2) Blithfield meteorite; by electron microprobe, average of 15 analyses; corresponding...orthoenstatite, plagioclase, alabandite, graphite, schreibersite. Distribution: In iron meteorites, such as...meteorites, including the Bustee, Mayo Belwa, Norton County, and Cumberland Falls achondrites, the Hvittis...French meteorite researcher. Type Material: n.d. [??first from the Bolson de Mapimi iron meteorite - where |  | | Journal (article/letter/editorial) | | phosphides. Keywords: phase relations, phosphides, schreibersite, nickelphosphide, barringerite, allabogdanite...Mots-clĂ©s: relations de phases, phosphures, schreibersite, nickelphosphide, barringerite, allabogdanite...falls inside the quaternary system CoâFeâNiâP: schreibersite [(Fe,Ni)3P], nickelphosphide [(Ni,Fe)3P], barringerite...described as minerals are summarized in Table 1. Schreibersite, an ironânickel phosphide with a 3:1 ratio,...meteorites, 400 the canadian mineralogist schreibersite apparently nucleates within the subsolidus temperature |  | | Journal (article/letter/editorial) | | together with partial analyses ofafurtherfive (Blithfield, Hvittis, Indarch, Jajh deh Kot Lalu and Pillistjer)...of Fe and S in different samples from the same meteorite shows that mineral groups (metal, silicate, sulphide...representative of each meteorite as a whole, except in the case of Blithfield where only a metal-rich...was largely governed by the total weight of the meteorite in the Collection of the British Museum (Natural...91 Magnetic fraction, attacked (metal and schreibersite) Fe% 24.70 30.00 22.20 Ni% 1.89 1.47 1.81 Cop |  | | Journal (article/letter/editorial) | | (1903) in his cltlssic description of the Hvittis meteorite, the establishment of s, specific group of enstrttite...and of ill-defined shape ; TVnickel-poor (Fe:Ni greater than 10) nickel-iron is in large amount (20 per...(Ch) ; Perpeti (Ch) ; Pervomaisky (Ch) ; St Maryâs County (probably Cb) ; Sauguis (Ch). Table 1 shows no...Table 1. Ths en&atite cbondrites Câoardinatas Abee (Canada) Adhi Kot (Pakistan) Atlanta (U.S.A.) Bethune (U...continents of Australia or South America. Abee, This meteorite fell near Abee, just north of Edmonton, Alberta |  | | Journal (article/letter/editorial) | | ratio = 3:1 and 2:1, isotypic with minerals schreibersite and barringerite, could possibly be found in...minerals form differentiated iron-rich meteorites (schreibersite, nickelphosphide, barringerite and allabogdanite)...concentrations of Co (e.g. Papike 1998). Co contents in schreibersite range from ~0.14 to 0.39 wt. % Co (Keil, 1968;...reported by Rubin (1984) in schreibersite from the Blithfield meteorite. Also, the Co content in allabogdanite...phosphides, isotypic with minerals allabogdanite or schreibersite and phosphides with Ni/P ratios 12:5 and 5:2 |  | | Journal (article/letter/editorial) | | temperatures for the last thermal event suffered by the meteorite, and the fast cooling rates indicated are most...inadequate sampling of these relatively rare meteorite groups. It now seems that EH chondrites display...geothermometry of enstatite chondrites (in wt%). ~ Meteorite* Classt Abee Adhi-Kot EH4y EH4y EH3u EL6P EH3u...81 189 ALH 84170 ALH 84206 ALH85119 Atlanta Blithfield Daniel's Kuil Eagle EET 87746 EET 90299 Hvittis...respectively. Except for Rubin's (1984) application to Blithfield and preliminary reports of this work (Zhang et |  | | Journal (article/letter/editorial) | | AbstractâQueen Alexandra Range (QUE) meteorite 94204 is an anomalous enstatite meteorite whose petrogenesis has been...partial melting or impact melting. We studied the meteorite pairs QUE 94204, 97289/97348, 99059/99122/99157/99158/99387...of Y-793225 are related to EL6, and that this meteorite is unrelated to the QUEs. The mineralogy and siderophile...99059/99122/ 99157/99158/99387 (anomalous enstatite meteorite), and QUE 94204 (EH7). QUE 97289/97348 was noted...(Antarctic Meteorite Newsletter 1999), which is classified as an ungrouped iron meteorite, but thought |  | | Journal (article/letter/editorial) | | to contain metamorphic diopside, the Antarctic meteorite EET 90102. Elephant Moraine 90102 has a typical...of -900 "C. The absence of daubreelite and schreibersite along with high troilite Cr contents and high...INTRODUCTION The enstatite chondrites and aubrites are meteorite groups that contain some of the most reduced natural...Museum of Natural History and USNM samples of Blithfield examined; see also Rubin, 1984). Mineral Analysis...chondrites (Daniel's Kuil, Hvittis, Atlanta, Blithfield, Jajh deh Kot Lalu, Khairpur, Pillistfer and |  | | Journal (article/letter/editorial) | | centimeter-size kamacite veins in Atlanta and Blithfield and the 1.6-cm-long oldhamite-rich vein in Jajh... enstatite chondrites appear to have suffered greater shock damage than ordinary and carbonaceous chondrites...TIL91714,9; EL6: ALHA81021,46; Atlanta, UH169; Blithfield, UH164; Danielâs Kuil, UH199; Eagle, UH76; EET90102...Johnson Space Center, provided by the Antarctic Meteorite Working Group; sections labelled Y are from the...(4) EL chondrites tend to contain more Ni in schreibersite (i.e., >20 wt% vs. <20 wt%; Zhang et al., 1995)) |  | | Journal (article/letter/editorial) | | doi: 10.1111/maps.12815 Remnants of altered meteorite in the Cretaceous-Paleogene clay boundary in Poland...bottom part of the host layer. The fragments of meteorite (2â6 mm in size) and meteoritic dust are metallic-gray...Geochemical and petrographic analyses of the meteorite from Lech owka reveal the presence of Ni-rich...identified minerals are taenite, kamacite, schreibersite, Ni-rich magnetite, and Ni-rich goethite. No...not permit the chemical classification of the meteorite fragments. However, the recognized mineral inventory |  | | Journal (article/letter/editorial) | | new sphalerite-group mineral from the ZakĆodzie meteorite Chi Ma,* John R. Beckett, and George R. Rossman... tridymite, quartz, cristobalite, sinoite, schreibersite, buseckite, keilite, and graphite, are also...new mineral, sphalerite group, EBSD, ZakĆodzie meteorite, enstatite achondrite Introduction Mineral name...name and type material The ZakĆodzie meteorite, which is a moderately weathered find discovered near...During a nano-mineralogy investigation of this meteorite, a new manganese monosulfide mineral, MnS with |  | | Journal (article/letter/editorial) | | and the presencteof sinoite indicate that the meteorite was formed under strongly reducing conditions...conditions. However, among the various stone meteorite classes are two which were formed in an even higher...the meteorite aa a veined crystalline chondrite: htwwver. Xf,4sow (I!~i-li listed the meteorite properly...chemically analyzed upatitc were used to analyze the schreibersite. The analyses of sinoitc? were porformod wit...st.andards to determinr thcl graphite in t,he meteorite. The quantitative data. were corrected for wavelength |  | | Journal (article/letter/editorial) | | other phases including troilite, daubreelite, schreibersite, and silica-normative melt areas make up <~1...twinning in the enstatite. We suggest that the meteorite Zakâ„odzie, which has been referred to as a âprimitive...Keil (2007). Finally, the âmetal-rich enstatite meteorite with achondritic textureâ Itqiy (Patzer et al...another, fifth enstatite meteorite parent body. INTRODUCTION In the worldâs meteorite collections, there are...precursor rocks seem to exist in the worldâs meteorite collections (McCoy et al. 1996, 1997a, 1997b; |  | | Journal (article/letter/editorial) | | plagioclase, 2.61; silica, 2.32; kamacite, 7.6; schreibersite, 7.1; niningerite, 3.6; and troilite, 4.6.)...(1967) reported accessory cristobalite in EL6 Blithfield, Rubin (1984) failed to find any silica grains...reported that one chondrule fragment in this meteorite has relatively abundant silica, but that elsewhere...1960. A description of the meteorite which fell near Abee, Alberta, Canada. Geochimica et Cosmochimica...primitive chondrites: Abundances as a function of meteorite class and petrologic type. Geochimica et Cosmochimica |  | | Journal (article/letter/editorial) | | Impact melting of the largest known enstatite meteorite: Al Haggounia 001, a fossil EL chondrite Alan...melt rock with a mass of ~3 metric tons. The meteorite exhibits numerous shock effects including (1)...severely weathered. Literature data indicate the meteorite fell ~23,000 yr ago; numerous secondary phases...Chennaoui-Aoudjehane et al. 2007, 2009). Because the meteorite fell in the Late Quaternary and portions of it...a âfossil meteoriteâ (e.g., Bunch et al. 2014). Severely weathered regions of the meteorite are fractured |  | | Journal (article/letter/editorial) | | âC for Yilmia to 1068âC for Blithfield. Temperature estimates of greater than 1000°C for the highly ~~libmt~...meteorites. The use of an even slightly equilibrated meteorite assemblage to infer conditions in the solar nebula...alabandite ( ( Mn, Fe) S) , daubreelite ( FeCr zS4), schreibersite ((Fe, NihP), and large amounts of Si in kamacite...yF&(tiquid)remains at 0.81. However, higher temperatures favor greater ideal mixing behavior, implying that yF&(tiq&)does...increases. This, in turn, favors an ar&(riuid) greater than 0.59. Considering the lack of information |  | | Journal (article/letter/editorial) | | of brecciation and interaction between other meteorite types; for the other three, similar scenarios...INTRODUCTION In terms of 0-isotopic composition, meteorite chemical groups define distinct fields and mixing...two melted groups (aubrites and the Shallowater meteorite). Meteorites from these four bodies are notable...that could indicate their interaction with other meteorite types. Earlier work (Clayton et al., 1984) produced...of the global enstatite meteorite collection. Before the advent of meteorite searches in cold and hot |  | | Journal (article/letter/editorial) | | Aubrites represent samples from a third enstatite meteorite parent body. 3. The aubrite parent body may have...Shallowater may be a sample from yet a fourth enstatite meteorite parent body. 6. Shallowater experienced a complex...reassembly. 7. It is unknown why some enstatite meteorite parent bodies melted (the aubrite and Shallowater...Tucson iron meteorite which had previously been thought to be related to the enstatite meteorite clan (Nehru...Kaczaral et al. (1988) suggested that all three meteorite types come from one parent body that was initially |  | | Journal (article/letter/editorial) | | PII S0016-7037(00)00516-0 The Portales Valley meteorite breccia: Evidence for impact-induced melting and...processes include IIE-an NetschaeÌvo and EL6 Blithfield. Copyright © 2001 Elsevier Science Ltd objects...form of the Portales Valley meteorite (Fig. 1a) which fell in Roosevelt County, New Mexico on 13 June 1998...distribution of coarse metal. Some regions of the meteorite consist of large, angular silicate-rich areas...larger silicate clasts. In large Portales Valley meteorite breccia 325 Fig. 2. Large-scale structure and |  | | Journal (article/letter/editorial) | | order to better understand its origin in this meteorite. We also present data for Ca-rich pyroxenes from...despite slight compositional differences, this meteorite is closely related to other EL6 chondrites. In...understanding of the origin of diopside in this meteorite. Because comparable trace element data for diopside...calculations under the reducing conditions of enstatite meteorite formation might be useful, to determine if consideration...and, to a lesser extent, Tm also have somewhat greater volatilities than the other REE (see their Fig |  | Grossman, Jeffrey N., Rubin, Alan E., Rambaldi, Ermanno R., Rajan, R.Sundar, Wasson, John T. (1985) Chondrules in the Qingzhen type-3 enstatite chondrite: Possible precursor components and comparison to ordinary chondrite chondrules. Geochimica et Cosmochimica Acta, 49 (8) 1781-1795 doi:10.1016/0016-7037(85)90149-8 | Journal (article/letter/editorial) | | chondrites in olivine abundance and in kamacite, schreibersite, troilite and niningerite compositions ~RAMBALDIef...and B of RAMDOHR, 1963), kamacite (Fe, Ni). schreibersite (Fe. Y&P. and perryite (Ni. Fe)&%, Ph. There...and caswellsilverite (Table 3). and kamacite. schreibersite and penyite (Table 4) in the Qingzhen chondrules...pyroxenes. but contents of Fe. Cr and Mn are 2X greater in RP-pyroxenes. Pyroxene in PP chondrules has...silicates, the rest in sulfides, metal and schreibersite. Zinc can only be detected in sulfides, whereas |  | | Journal (article/letter/editorial) | | material of a differentiated asteroid and an iron meteorite. In contrast to many other classes of meteorites...processes. The Budulan mesosiderite is the first meteorite of this type in which traces of metasomatism under...6 5.73 Note: n.d. means no detected. this meteorite. Our preliminary studies (Lorenz et al., 1999...prepared 15 polished sections of samples of this meteorite. Olivine inclusions were identified only in three...obtained dur ing the laboratory processing of the meteorite material and then used to prepare polished thin |  | | Journal (article/letter/editorial) | | the aubrites. Literature data even for the same meteorite often disagree. Whole-rock REE analyses by STRAIT...studies involving several samples from the same meteorite ( OKADA et al., 1988; KEIL et al., 1989). NEWSOM...addition, ion probe measurements from the Norton County aubrite show that daubreelite and caswellsilverite...measured (Table 1 and Fig. 2~). Alabandite in Norton County shows a similar HREE enrichment, but with higher...preserved. Ion microprobe measurements from Norton County ( WHEELOCK, 1990; WHEELOCK et al., 1990) provide |
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