 | | Journal (article/letter/editorial) | | of iron-nickel carbides in the matrix of the Semarkona unequilibrated ordinary chondrite LINDSAY P. KELLER...Barringer) Abstract-The fine-grained matrix of the Semarkona unequilibrated ordinary chondrite contains an...postaccretional thermal processing that occurred on the Semarkona parent body. INTRODUCTION The unequilibrated ordinary...of certain matrix materials in the Semarkona chondrite. Semarkona is a UOC fall of low petrographic type...(Hutchison et al., 1987; Alexander et al., 1989). Semarkona is also unusual because of the occurrence of FeNi |  | | Journal (article/letter/editorial) | | carbides (Krot et al., 1997). Evidence from LL3.0 Semarkona that water moved through the matrix into chondrules...high-17O composition of magnetite grains in LL3.00 Semarkona, L3.05 EET 90161, LL3.6 Ngawi and other type-3...temperatures ranging from 200 - 260ºC for type-3.00 Semarkona (Alexander et al., 1989; Huss and Lewis, 1994)...those of the most unequilibrated OC (e.g., LL3.00 Semarkona, LL3.15 Bishunpur, LL3.2 Krymka; Takagi, 2005;...PCA 91002 contains 0.3 vol.% magnetite, this meteorite is paired with PCA 91241 and all the magnetite |  | | Journal (article/letter/editorial) | | Size (/~m) ~13C (7oo) 815N (%o) Ref. Graphite Diamond SiC SiC SiC ~ Ne-E(L) Xe-HL Xe-S Ne-E(H) - Ca...6. TABLE 3 The yields (relative to the bulk meteorite) and the peak isotopic compositions of the heavy...temperatures for carbon and nitrogen are also listed Meteorite (ppm) 2. T e c h n i q u e s Most of the presolar...are greater than petrologic type 3.6 Meteorite and type Semarkona (LL3.0) Bishunpur (L/LL3.1) Krymka (LL3...have been calculated relative to the bulk meteorite. Semarkona Bishunpur Krymka Inman Tieschitz 1.6 1 |  | | Journal (article/letter/editorial) | | fall; two Hs) including the most primitive one, Semarkona. HL-Xe was found in all cases except Dhajala (H...only 10 times lower than the solar ratio. In Semarkona (LL 3.0) there is evidence for the presence of...special interest were the results for LL 3.0 Semarkona which in terms of its thermal history is the most...N. Schelhaas, U. Ott, and F. Begemann Table Meteorite samples used in this study. Petrographic sub-classification...- Mass yields are given [in wt.% of the bulk meteorite] for the HF/HCI residues of the bulk samples as |  | | Journal (article/letter/editorial) | | was further strengthened by the large Allende meteorite fall in 1969 with its abundant calcium-aluminum-rich...and Mason and Wiik (1962), and for the other meteorite classes from Wasson and Kallemeyn (1988). primitive...2003; Bonal et al. 2004). In the OCs, compared to Semarkona (LL3.0), Bishunpur (L/ LL3.1) and Krymka (LL3...IOM, respectively (Alexander et al. 1998). Even Semarkona has experienced some metamorphism (Grossman and...1993), with a similar degree of metamorphism to Semarkona (Grossman and Brearley 2005), but its bulk alkali |  | ALEXANDER, C. M. O'D., RUSSELL, S. S., ARDEN, J. W., ASH, R. D., GRADY, M. M., PILLINGER, C. T. (1998) The origin of chondritic macromolecular organic matter: A carbon and nitrogen isotope study. Meteoritics & Planetary Science, 33 (4) 603-622 doi:10.1111/j.1945-5100.1998.tb01667.x | Journal (article/letter/editorial) | | closely resembles that now found in Renazzo and Semarkona. These two meteorites have almost M-shaped N isotope...chondrite (Renazzo), five type 3 ordinary chondrites (Semarkona, Bishunpur, Krymka, Inman and Tieschitz) and three...Murchison, Murray and Orgueil), 1-2 g samples of each meteorite were given alternate treatments in 9 M HF/l M...various meteorites studied here. Meteorite Concentration factor Semarkona (LL3.0) Krymka (LL3.1) Bishunpur...influence the first two or three steps, but most meteorite residues released considerably >10-20 ng of C |  | | Journal (article/letter/editorial) | | Fractionated sulfur isotopes in sulfides of the Kaidun meteorite HARRYY. MCSWEEN, JR.'*, LEER. RICIPUT12 AND BRUCEA...37996, USA 2Chemistry and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee...form 1996 September 12) Abstract-The Kaidun meteorite contains carbonaceous chondrite (CM 1) clasts...jackstraw pyrrhotites are unknown from any other meteorite, although uncoated acicular pyrrhotites were noted...using SIMS are highly variable within any one meteorite section and mostly shifted to negative values |  | Davidson, Jemma, Busemann, Henner, Nittler, Larry R., Alexander, Conel M.O’D., Orthous-Daunay, François-Régis, Franchi, Ian A., Hoppe, Peter (2014) Abundances of presolar silicon carbide grains in primitive meteorites determined by NanoSIMS. Geochimica et Cosmochimica Acta, 139. 248-266 doi:10.1016/j.gca.2014.04.026 | Journal (article/letter/editorial) | | extracted from primitive members of different meteorite groups. We show that presolar SiC abundance determinations...differences between primitive members of other meteorite classes, which did not experience such high temperatures...scale, the material that accreted to form the meteorite parent bodies was physically and chemically heterogeneous...distribution of presolar grains throughout the meteorite-forming regions of the early Solar System, and...effects of aqueous and thermal alteration within meteorite classes. Presolar grains (including silicates |  | | Journal (article/letter/editorial) | | primitive ordinary chondrite known is Semarkona, although even this meteorite has experienced a small amount...95544. NWA 3127 was a previously unclassified meteorite, though it closely resembles NWA 1756 in thin...is considered to be paired with GRO 95502, a meteorite that had already been chosen for this study. The...number of CL images were obtained of chondrules in Semarkona using a single-channel photon detector attached...(USGS), Reston, Virginia. Color CL images of Semarkona were also obtained using the ELN-3R luminoscope |  | | Journal (article/letter/editorial) | | Singhvi c a b c Space Science and Astrobiology Division, NASA Ames Research Center, MS245-3, Moffett Field...Physical Research Laboratory, Ahmedabad 380 009, India a r t i c l e i n f o Article history: Received...age Metamorphism a b s t r a c t Early work on meteorite thermoluminescence (TL), influenced by pottery...(2) the terrestrial age (time since fall) of a meteorite. For 14 years natural TL measurements were routinely...value of such data are presented, an Antarctic meteorite that underwent a major orbit change prior to fall |  | Hicks, L. J., MacArthur, J. L., Bridges, J. C., Price, M. C., Wickham-Eade, J. E., Burchell, M. J., Hansford, G. M., Butterworth, A. L., Gurman, S. J., Baker, S. H. (2017) Magnetite in Comet Wild 2: Evidence for parent body aqueous alteration. Meteoritics & Planetary Science, 52 (10) 2075-2096 doi:10.1111/maps.12909 | Journal (article/letter/editorial) | | this hypothesis, powdered material from a CR2 meteorite (NWA 10256) was shot into the aerogel at 6.1 km...silicates, requiring aqueous activity in the meteorite parent body. Hematite and maghemite c-Fe2O3 are...look at powdered material from a CR2 chondrite meteorite, selected as an analogue to Wild 2, including...I-18 Beamline (Diamond Light Source synchrotron) Using the I-18 Beamline, of the Diamond Light Source synchrotron...magnetite grain from a thin section of the same CR2 meteorite shows a Fe-rich content with a trace of Cr. Peaks |  | Sears, Derek W. G., Morse, Andrew D., Hutchison, Robert, Guimon, R. Kyle, Jie, Lu, Alexander, C. M. O'D., Benoit, Paul H., Wright, Ian, Pillinger, Colin, Xie, Tian, Lipschutz, Michael E. (1995) Metamorphism and aqueous alteration in low petrographic type ordinary chondrites. Meteoritics, 30 (2) 169-181 doi:10.1111/j.1945-5100.1995.tb01112.x | Journal (article/letter/editorial) | | Indiana 47907, USA 5Present address: Natural Science Division, Missouri Baptist University, S1. Louis, Missouri...chondrules, chondrules were hand-picked from the Semarkona (petrographic type 3.0), Bishunpur (3.1), Chainpur...composition determined. The TL data for chondrules from Semarkona and Bishunpur scatter widely showing no unambiguous...(up to ~8000%o SMOW) are observed in certain Semarkona chondrules, a confirmation of earlier work. With...increase, the spread of values within an individual meteorite decreases, and peak temperatures and peak widths |  | | Journal (article/letter/editorial) | | armalcolite (165) 37 Asia (165) 129 1897 Assam India (167) 269 assimilation (170) 301 Atlantic Ocean...81, (172) 179 density (171) 21 deserts (170) 61 diamond (164) 421, (166) 127, (173) 1, (173) 351 diatoms...inclusions (164) 345, (165) 25, (169) 173 India (171) 7, (171) 607 India-Asia collision (171) 107 Indian Ocean...(169) 37 seismicity (168) 255, (172) 11 Semarkona Meteorite (164) 577 Senegal (173) 413 Sesia-Lanzo Zone...Mountain (171) 95 Yunnan China (165) 1 Zagami Meteorite (173) 397 zircon (164) 409, (169) 291, (171) 591 |  | | Journal (article/letter/editorial) | | matrices of the unequilibrated ordinary chondrites Semarkona, Bishunpur, Chainpur, and Krymka. The rims appear...abundances of forty elements in rims and matrices from Semarkona (LL3.0), Bishunpur (LL/L3.1), Krymka (LL3.1),... The only meteorite in which no distinction was made between rims and matrix was Semarkona. Apparently...matrix and rims are rather more complicated. In Semarkona, Bishunpur, and Chainpur matrices the distribution...__._.. A Chainphr ----O---Krymka ----III---- Semarkona (A) Matrix O.l’, , MgAl ( , , Si CaSc |  | | Journal (article/letter/editorial) | | Amorsson S. ~stmann~o~r H. Ok&son J. Sigvaldason G. E. INDIA Krishnaswami S. ISRAEL Aizenshtat 2. Ben-Yaakov...crystallization history of alkali olivine basalts, Diamond Craters, Oregon 143 JOHANINGR~and CHRLSTER PONTI~R:...MARTI:Nucleogenic noble gas com~nent~ in the Cape York iron meteorite 163 Book Reviews S. A. MORSE:“Lunar Bases and...forsterite-bearing Ca-Al-rich inclusions in the Aliende meteorite . LAWRENCE R. BERNSTEIN and GLENNA. WAYCHUNAS:...Organic Ge~hemist~ Division, Minutes 1028 . 1030 Organic Geochemistry Division, Slate of Officers |  | | Journal (article/letter/editorial) | | because of the high precision and large number of meteorite analyses. However, the occurrence of three systematic...seen in the compilation of JAROSEW~CH ( 1990) of meteorite analyses (Table 1). The metal abundances of JAROSEWICH...concentrations of other siderophile elements in bulk meteorite samples. MORGAN et al. ( 1985) likewise inferred...and that reaction between this fluid and the meteorite would have resulted in the observed change in...chond&es. Progressive destruction of interstellar diamond during mild heating, virtually complete in petrologic |  | | Book (edition) | | Italy NT Chieti NT Marsica AJjsaroka Fault Abee Meteorite aa Taylor County Texas Texas Southwestern U...River IN Index Indian states as applica¬ ble. BT India SA Bihar SA West Bengal Ajman Sheikdom. One of federation...Peninsula Ajmer City and district in central Raja¬ sthan, NW India. BT Rajasthan BT India akaganeite BA oxides...Endicott Mountains NA Fairbanks Alaska NA Fairbanks District NT Fairweather Fault NT Glacier Bay NA Glacier...Interior Seaway NX Western Overthrust Belt SA Abee Meteorite SA Altyn Limestone SA Banff Formation SA Bearpaw |  | | Journal (article/letter/editorial) | | increasing metamorphic grade of a given chemical meteorite type, FeO/MgO ratios in olivine and pyroxene increase;...Concord 3.2 3.4 3.6 3.8 4 5 6 LL chondrites Semarkona Bishunpur Chainpur Parnallee LAR 06674,4 Hamlet... 1180-3; Lost City, 4848-3; Guarena, 1469-3; Semarkona 1805-18; Bishunpur 2359-1; Chainpur, 1251-16;...Univ. of New Mexico: Qingzhen, 636. Antarctic meteorite sources: National Institute of Polar Research:...LL chondrites. (a) A porphyritic type IAB in Semarkona (LL3.0). (b) A porphyritic type IAB in Bishunpur |  | Matsunami, Satoshi, Ninagawa, Kiyotaka, Nishimura, Satoru, Kubono, Noriko, Yamamoto, Isao, Kohata, Masaki, Wada, Tomonori, Yamashita, Yoshihiko, Lu, Jie, Sears, Derek W.G., Nishimura, Hiroshi (1993) Thermoluminescence and compositional zoning in the mesostasis of a Semarkona group A1 chondrule and new insights into the chondrule-forming process. Geochimica et Cosmochimica Acta, 57 (9) 2101-2110 doi:10.1016/0016-7037(93)90096-f | Journal (article/letter/editorial) | | and compositional zoning in the mesostasis of a Semarkona group Al chondrule and new insights into the chondrule-forming...group Al, porphyritic olivine chondrule in the Semarkona (LL3.0) chondrite with induced thermoluminescence...chondrules with anorthite-normative mesostases in Semarkona (LL3.0) and Bishunpur (LL3.1) is produced at wavelengths...on a large ( - 800 pm) group A 1 chondrule in Semarkona (LL3.0) which contains induced TL and compositional...should be addressed. A 50.47 mg chip of the Semarkona (LL3.0) chondrite (USNM 1805) was cut into three |  | Sutton, S., Alexander, C.M.O'D., Bryant, A., Lanzirotti, A., Newville, M., Cloutis, E.A. (2017) The bulk valence state of Fe and the origin of water in chondrites. Geochimica et Cosmochimica Acta, 211. 115-132 doi:10.1016/j.gca.2017.05.021 | Journal (article/letter/editorial) | | Fe XANES to determine the Fe valences of bulk meteorite powders in Orgueil (CI1), a number of CMs and...experienced varying degrees of alteration, and Semarkona (LL3.00). The total ranges of bulk Fe valences...Orgueil 2.77, CMs 2.40-2.63, CRs 1.46-2.54, and Semarkona 2.10. Combining previous estimates of the present...fractional water losses to have been: Orgueil 15-26 %, Semarkona 73-83 %, CMs 23-48 %, and CRs 39-62 %. The associated...CMs -676 ‰ to -493 ‰, CRs -527 ‰ to -56 ‰, and Semarkona -527 ‰ to 154 ‰. The CI, CM, CR and ordinary chondrites |  | Fu, Roger R., Weiss, Benjamin P., Lima, Eduardo A., Kehayias, Pauli, Araujo, Jefferson F.D.F., Glenn, David R., Gelb, Jeff, Einsle, Joshua F., Bauer, Ann M., Harrison, Richard J., Ali, Guleed A.H., Walsworth, Ronald L. (2017) Evaluating the paleomagnetic potential of single zircon crystals using the Bishop Tuff. Earth and Planetary Science Letters, 458. 1-13 doi:10.1016/j.epsl.2016.09.038 | Journal (article/letter/editorial) | | rock (43.0 ± 3.2 μT). High-resolution quantum diamond magnetic (QDM) mapping, electron microscopy, and...further conclude that a combination of quantum diamond magnetometry and high-resolution imaging can provide...ferromagnetic sources in the zircons using the quantum diamond microscope (QDM) developed at the Walsworth Laboratory...dusty olivine-bearing chondrules from the Semarkona meteorite (Fu et al., 2014b), produces maps of the...nitrogen vacancy color centers, near the surface of a diamond chip on which the sample of interest is placed |  | | Journal (article/letter/editorial) | | SK05P2A2 was polished to make a flat surface using diamond-polishing paste. After polishing or microtome cutoff...determined by EPMA analysis. Compositional fields of Semarkona, Tagish Lake carbonate-poor, and Bells are also...versus c) SiO2 versus Na2O. diagrams of SK series Semarkona LL3 chondrite, lithology, and Bells CM obtained...micrometeorites do not show K-enrichment. In addition, the Semarkona LL3 chondrite, which consists largely of hydrous...Table 1). 2. Saponite-Rich Type The matrices of Semarkona ordinary chondrite, Bells CM chondrite, and Tagish |  | | Journal (article/letter/editorial) | | 3Physical Research Laboratory, Ahmedabad 380 009, India of Natural History, Chicago, IL 60605, and Department...isotopic compositions reflect the iron-group of the meteorite (H, L, or LL). Isotopic uniformity of H3 to H6...identification of genetic association with other meteorite types (achondrites and iron) and for recognition...combination of these processes has left each planet and meteorite parent body with a distinctive oxygen isotopic...fractionation line is defined as: 6”O = 0.526”0. For a meteorite sample, an excess in “0 can be defined as A”0 |  | Brearley, Adrian J, Scott, Edward R.D, Keil, Klaus, Clayton, Robert N, Mayeda, Toshiko K, Boynton, William V, Hill, Dolores H (1989) Chemical, isotopic and mineralogical evidence for the origin of matrix in ordinary chondrites. Geochimica et Cosmochimica Acta, 53 (8) 2081-2093 doi:10.1016/0016-7037(89)90326-8 | Journal (article/letter/editorial) | | fine-grained matrix lumps and chondrule rims from Semarkona (GROSSMANet al., 1987). Transmission electron...extracting matrix materials intact from the host meteorite due to the small dimensions of matrix fragments...from this study (TAYLOR et al., 1984) and from Semarkona (GROSSMANet al., 1987), have been lacking. Consequently...subsequently isolated on two adjacent slices of the meteorite. Samples of the lump weighing 8 and 4 mg were...finely powdered in a precleaned agate mortar. (The meteorite was friable and easily powdered). A 7.5 mg split |  | | Journal (article/letter/editorial) | | synthesized in reducing conditions by adding graphite or diamond into precursory silicate dust [8,9,25]. However... e.g. Murchison (CM2), Bishunpur (LL3.1) and Semarkona (LL3.0) [6,7,10,20,24,25], and have also been...estimates are based on Alexander et al. [51] for Semarkona, Rambaldi and Wasson [20] for Bishunpur, Huss...100 Ma [50] Meteorite name Type Metamorphic Geothermometer temperature (°C) Semarkona LL3.0 250 ð2Þ...olivine. The least metamorphosed type LL3.0 Semarkona meteorite indicates the maximum metamorphic temperature |
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