 | | Journal (article/letter/editorial) | | 1111/maps.12271 Testing variations within the Tagish Lake meteoriteāI: Mineralogy and petrology of pristine...Earth Sciences Building, Edmonton, Alberta T6G 2E3, Canada 2 Materials Science and Technology Division, Naval...Laboratory, 4555 Overlook Ave. SW, Washington, District of Columbia 20375, USA 3 Present Address: Department...TL11v) from the pristine collection of the Tagish Lake meteorite, an ungrouped C2 chondrite, were studied...mineralogic observations, we conclude that the Tagish Lake parent body initially contained a heterogeneous |  | | Journal (article/letter/editorial) | | of chondrules and isolated forsterite and olivine grains from the Tagish Lake carbonaceous chondrite S...The University of Western Ontario, London, Ont., Canada N6A 5B7 Received 16 June 2008; accepted in revised...separates of isolated forsterite, isolated olivine and chondrules from the Tagish Lake carbonaceous chondrite...from other carbonaceous chondrites. The isolated forsterite grains (Fo99.6ā99.8; d18O = 7.2& to 5.5&; d17O...isotopic characteristics typical of refractory forsterite. Chondrules contain olivine (Fo97.2ā99.8) with |  | Izawa, M.R.M., Flemming, R.L., McCausland, P.J.A., Southam, G., Moser, D.E, Barker, I.R. (2010) Multi-technique investigation reveals new mineral, chemical, and textural heterogeneity in the Tagish Lake C2 chondrite. Planetary and Space Science, 58 (10) 1347-1364 doi:10.1016/j.pss.2010.05.018 | Journal (article/letter/editorial) | | chemical, and textural heterogeneity in the Tagish Lake C2 chondrite M.R.M. Izawa n, R.L. Flemming, P...Western Ontario, 1151 Richmond St. London, Ontario, Canada N6A 5B7 a r t i c l e in fo abstract Article...2010 Available online 1 June 2010 The Tagish Lake meteorite, an ungrouped C2 chondrite that is related...processes in both the solar nebula and on the Tagish Lake parent asteroid. We have examined an intact 2...sections from the spring 2000 (non-pristine) Tagish Lake collection to ascertain the major mineralogy |  | | Journal (article/letter/editorial) | | 1111/maps.13362 Water abundance in the Tagish Lake meteorite from TGA and IR spectroscopy: Evaluation...Earth Sciences Building, Edmonton, Alberta T6G 2E3, Canada 2 UJF-Grenoble 1, CNRS-INSU, Institut de Planetologie...among five pristine specimens of the ungrouped Tagish Lake carbonaceous chondrite (TL5b, TL11h, TL11i, TL4...chondrites (e.g., Garenne et al. 2014), with which Tagish Lake shares some affinities. Using these two methods...highlights the compositional variability of the Tagish Lake specimens, which we ascribe to its brecciated |  | IZAWA, Matthew R. M., FLEMMING, Roberta L., KING, Penelope L., PETERSON, Ron C., McCAUSLAND, Phil J. A. (2010) Mineralogical and spectroscopic investigation of the Tagish Lake carbonaceous chondrite by X-ray diffraction and infrared reflectance spectroscopy. Meteoritics & Planetary Science, 45 (4) 675-698 doi:10.1111/j.1945-5100.2010.01043.x | Journal (article/letter/editorial) | | Mineralogical and spectroscopic investigation of the Tagish Lake carbonaceous chondrite by X-ray diffraction and...Ontario, 1151 Richmond St. London, Ontario, N6A 5B7, Canada 2 Institute of Meteoritics, University of New Mexico...Queenās University, Kingston, Ontario, K7L 3N6, Canada * Corresponding author. E-mail: matthew.izawa@gmail...from seven different collection sites of the Tagish Lake C2 chondrite. Rietveld reļ¬nement of high-resolution...of the mineralogy of the Tagish Lake meteorite; we ļ¬nd however that Tagish Lake is more varied in major |  | | Journal (article/letter/editorial) | | Fine-grained rims surrounding chondrules in the Tagish Lake carbonaceous chondrite: Veriļ¬cation of their...study of the carbonate-poor lithology of the Tagish Lake carbonaceous chondrite reveals that most chondrules...region in the meteorite parent-body that was diļ¬erent from the location where the host meteorite was ļ¬nally...proposed for the carbonate-rich lithology of Tagish Lake and the hydrated chondrules/rims in the Vigarano...produced by brecciation in a wet region of the meteorite parent-body 2 A. Takayama, K. Tomeoka / Geochimica |  | | Journal (article/letter/editorial) | | chemistry of the anhydrous component of the Tagish Lake carbonaceous chondrite S. B. SIMON1* and L. GROSSMAN1...accepted 16 January 2003) AbstractāMost studies of Tagish Lake have considered features that were either strongly...experienced by this meteorite. This has led to some ambiguity as to whether Tagish Lake should be classified...focused upon the primary, anhydrous component of Tagish Lake, recovered through freeze-thaw disaggregation...of chondrules and refractory forsterite (which distinguish Tagish Lake from the CIs), we found hibonite-bearing |  | | Journal (article/letter/editorial) | | of the early oceans: Evidence from the Tagish Lake meteorite M.R.M. Izawa a,ā, H.W. Nesbitt a, N.D. MacRae...Ontario, Canada N6A 5B7 Activation Laboratories Ltd., 1336 Sandhill Drive, Ancaster, Ontario, Canada L9G 4V5...c t Laboratory leaching studies of the Tagish Lake meteorite demonstrate that the most readily leached...the most abundant solutes leached from Tagish Lake meteorite ā are also the most abundant ions of salts...All rights reserved. 1. Introduction The Tagish Lake meteorite is unusual in a number of respects: its |  | | Journal (article/letter/editorial) | | http://meteoritics.org Fine-grained dust rims in the Tagish Lake carbonaceous chondrite: Evidence for parent body...revision accepted 29 March 2005) AbstractāThe Tagish Lake carbonaceous chondrite consists of heavily aqueously...majority of the coarse-grained components in this meteorite are surrounded by continuous, 1.5 to >200 Ī¼m wide...fine-grained rims in Tagish Lake are very similar throughout the entire meteorite and independent of the...core object and more gradational contacts to the meteorite matrix. Compared to the matrix, the rims are much |  | | Journal (article/letter/editorial) | | org Estimated optical constants of the Tagish Lake meteorite Ted L. ROUSH NASA Ames Research Center,...derived from reflectance measurements of the Tagish Lake meteorite. These are compared to some real and imaginary...of the individual minerals composing the Tagish Lake meteorite. From this comparison, it is clear that...estimated imaginary index of this meteorite. INTRODUCTION The Tagish Lake meteorite (TLM) has been suggested as...Fig. 1. a) Measured reflectance of the Tagish Lake meteorite from Hiroi, Zolensky, and Pieters (2001) |  | | Journal (article/letter/editorial) | | signatures of the carbonate-rich lithology of the Tagish Lake carbonaceous chondrite: evidence for an accretionary...Abstract The carbonate-rich lithology of the Tagish Lake carbonaceous chondrite was characterized by noble-gas...precisely, because the shielding depth of our Tagish Lake samples is unknown, but the minimum exposure...aqueous solutions after the assembly of the Tagish Lake asteroid from recycled materials from previous...Science B.V. All rights reserved. Keywords: Tagish Lake; accretionary breccia; noble gases; mineralogy; |  | | Journal (article/letter/editorial) | | MnāCr ages of dolomites in CI chondrites and the Tagish Lake ungrouped carbonaceous chondrite Wataru Fujiya...CI chondrites and an ungrouped C2 chondrite Tagish Lake. For an accurate age determination, we utilized...of the solar system). The ages of the CI and Tagish Lake dolomites are very similar to those of carbonates...likely to be the case for the CM chondrite and Tagish Lake parent bodies, because the result of the calculation...that near the condensation front of water ice, meteorite parent bodies with abundant ice accreted almost |  | | Journal (article/letter/editorial) | | chondrites as well as with the ungrouped C2 chondrite Tagish Lake shows no positive match with any of these types...material as foreign clasts mixed into the host meteorite during regolith gardening. Such fragments, often... and diogenites), and also in a single lunar meteorite (e.g., Brearley and Prinz 1992; Brearley 1993;...about 20 vol% of such mostly angular clasts. The meteorite is very fresh (W0/1) as documented by the almost...type 3 clast. The grainās core is almost pure forsterite. e) Small type 6 fragment containing Ca-rich |  | | Journal (article/letter/editorial) | | are dominated by anhydrous minerals, including forsterite, enstatite, GEMS (glass with embedded metal and...that the H and N isotopic hotspots in the Tagish Lake meteorite are mostly associated with morphologically...generally obtained by demineralizing pieces of meteorite in HF ā HCl (Gardinier et al. 2000). The residue...acid residue of Orgueil, because Orgueil is a meteorite where nanoglobules have already been reported...+d15N +d15N, )d13C +d15N +d15N )d13C +d15N Tagish Lake (Nakamura et al. 2002) and Murchison (Brearley |  | Lantz, C., Brunetto, R., Barucci, M.A., Fornasier, S., Baklouti, D., BourƧois, J., Godard, M. (2017) Ion irradiation of carbonaceous chondrites: A new view of space weathering on primitive asteroids. Icarus, 285. 43-57 doi:10.1016/j.icarus.2016.12.019 | Journal (article/letter/editorial) | | and LanceĢ, CM Mighei, CI Alais, and ungrouped Tagish Lake meteorites, as well as on some silicate samples...(micrometeorite impacts simulation) irradiations on meteorite samples, 4 ACCEPTED MANUSCRIPT and most of...showing a differential trend depending CR IP T on meteorite classes. Carbonaceous chondrites (CCs) are composed...Proportions of these materials will change with the meteorite type. Thus CCs contain various amounts of different...and LanceĢ, CM Mighei, CI Alais, and ungrouped Tagish Lake meteorites. We also analyze natural silicates |  | | Journal (article/letter/editorial) | | ļ¬negrained; cg ā coarse-grained; En ā enstatite; Fo ā forsterite; LIME ā low-ironāmanganese-enriched; mtx ā matrix;...(20ā40 lm) enstatite intergrown with a 15 lm forsterite grain (Fo98) and encased in sublm porous chondritic...crystals (Steele, 1990). Manganese content of the forsterite is at the upper limit of the typical meteoritic...isotope analyses were acquired in enstatite and forsterite with a 10 lm spot on a polished section previously...coarse-grained (>10 lm) low-ironāmanganese-enriched forsterite (LIME, Fo97.5, MnO 0.82 wt%) surrounded by a |  | | Journal (article/letter/editorial) | | aromatic hydrocarbons were reported in Martian meteorite ALH 84001, and were interpreted as one of several...range in their dD values even within the same meteorite. The lowest dD value for feldspathic glass (314ā°)...existing on Mars when they were found in the Martian meteorite Nakhla [2,3]. Romanek et al. [4] showed the carbonates...evidence of early life on Mars within the ALH84001 meteorite. Thomas-Keprta et al. [6] showed the magnetite...Magnetofossils in Terrestrial Samples and Martian Meteorite ALH84001 Kathie L. Thomas-Keprta Lockheed Martin |  | Javoy, Marc, Balan, Etienne, MĆ©heut, Merlin, Blanchard, Marc, Lazzeri, Michele (2012) First-principles investigation of equilibrium isotopic fractionation of O- and Si-isotopes between refractory solids and gases in the solar nebula. Earth and Planetary Science Letters, 319. 118-127 doi:10.1016/j.epsl.2011.12.029 | Journal (article/letter/editorial) | | gaseous solar species (CO, H2O) and some key meteorite minerals: examples of results are given for the...selected gas (CO, H2O) and solid phases (e.g., forsterite, enstatite, silica) present in the solar nebula...of SiO is very close to that of enstatite and forsterite. This means that a compensation occurs between...oxygen fractionation with forsterite above 1100 K. For these temperatures, forsterite is thus a perfect (better... b c O/16O COāSiO QuartzāSiO EnstatiteāSiO ForsteriteāSiO PericlaseāSiO CorundumāSiO 8.6941 3.3243 |  | Nakamura-Messenger, K., Keller, L. P., Clemett, S. J., Messenger, S., Jones, J. H., Palma, R. L., Pepin, R. O., Klock, W., Zolensky, M. E., Tatsuoka, H. (2010) Brownleeite: A new manganese silicide mineral in an interplanetary dust particle. American Mineralogist, 95 (2) 221-228 doi:10.2138/am.2010.3263 | Journal (article/letter/editorial) | | of them poikilitically enclosed by Mnbearing forsterite. Owing to the small size of the brownleeite grains...occur as discrete aggregates with enstatite, forsterite, FeNi sulfides, and glass with embedded metal...carbonaceous material (Fig. 2). Individual enstatite and forsterite grains contain up to 5 wt% 223 MnO. These MnO-rich...1982), and hapkeite Fe2Si was found in a lunar meteorite, Dhofar 280 (Anand et al. 2004). Even though more...speculate that the brownleeite acted as a nucleus for forsterite condensation and that some evaporation and oxidation |  | | Journal (article/letter/editorial) | | CO, and CV groups and the presently ungrouped Tagish Lake, and 10 ordinary chondrites (OCs) from the H...for each type. The Cu isotopic composition of Tagish Lake confirms its other characteristics that are intermediate...three of the groups (CI-CM-CO), as well as for Tagish Lake, 63Cu excess over terrestrial mantle abundances...reaction of hydrous fluids with rocks within meteorite parent bodies. Mass-independent isotopic variations...1996). We focus here on samples from two main meteorite groups, carbonaceous (CC) and ordinary (OC) chondrites |  | | Book | | Water-Rich Small Bodies 390 6.5 Primitive Asteroid-Meteorite Matches 394 6.6 Implications for Exploration of...Properties of Asteroids Affecting Surface Operations, Mining, and In Situ Resource Utilization Activities 350...Properties of Asteroids Affecting Surface Operations, Mining, and In Situ Resource Utilization 439 8.2 Survey... Cloutis University of Winnipeg, Winnipeg, MB, Canada Jerome B. Johnson Coupi Inc., Fairbanks, AK, United...ways, ARM allowed for asteroid exploration and mining to move into the tangible realm. ARM brought together |  | | Journal (article/letter/editorial) | | that the amorphous silicate material in this meteorite is hydrated. Therefore, even though these CR3...2011; Le Guillou et al., 2013b). Studies of the Tagish Lake, Bells, Murchison and Orgueil carbonaceous chondrites... We have studied OM in the CR3.00 chondrite, Meteorite Hills 00426 (MET 00426), one of the least metamorphosed...troilite, pyrrhotite, pentlandite, and scarce forsterite, enstatite, Ca-carbonate and Fe-oxides (Abreu...hydrogen is present as water molecules. Quartz and forsterite (Fo90) powders were used as standards to calibrate |  | Noguchi, T., Yabuta, H., Itoh, S., Sakamoto, N., Mitsunari, T., Okubo, A., Okazaki, R., Nakamura, T., Tachibana, S., Terada, K., Ebihara, M., Imae, N., Kimura, M., Nagahara, H. (2017) Variation of mineralogy and organic material during the early stages of aqueous activity recorded in Antarctic micrometeorites. Geochimica et Cosmochimica Acta, 208. 119-144 doi:10.1016/j.gca.2017.03.034 | Journal (article/letter/editorial) | | show compositional variations, and the range of forsterite mol% in olivine and ferrosilite mol% in low-Ca...acid-insoluble organic matter (IOM) from Murchison meteorite for comparison (data from Cody et al., 2008).... which is very similar to IOM from Murchison meteorite (Cody et al., 2005). Nitrogen-KĪ± edge-XANES (hereafter...(2002) for Tagish Lake ungrouped C chondrite. Major minerals in the matrix of Tagish Lake are almost...GEMS and minor (~5vol.%) phyllosilicate with forsterite, low-Ca pyroxene, and pyrrhotite (hybrid IDPs; |  | | Journal (article/letter/editorial) | | (CC) groups, as well as the ungrouped Tagish Lake (C2) meteorite, can be reproduced using mixtures of...reliable as the elemental and isotopic data used. Meteorite heterogeneity (both within a sample and between...Alexander et al. (2015). The carbonate abundance in Tagish Lake had to be estimated from the isotopic composition...composition of lithology 5b, the most primitive Tagish Lake lithology (Herd et al., 2011). The estimate was...reported by Grady et al. (2002) for two small Tagish Lake chips from an unknown lithology. The CO, CV and |  | Yabuta, Hikaru, Noguchi, Takaaki, Itoh, Shoichi, Nakamura, Tomoki, Miyake, Akira, Tsujimoto, Shinichi, Ohashi, Noriaki, Sakamoto, Naoya, Hashiguchi, Minako, Abe, Ken-ichi, Okubo, Aya, Kilcoyne, A.L. David, Tachibana, Shogo, Okazaki, Ryuji, Terada, Kentaro, Ebihara, Mitsuru, Nagahara, Hiroko (2017) Formation of an ultracarbonaceous Antarctic micrometeorite through minimal aqueous alteration in a small porous icy body. Geochimica et Cosmochimica Acta, 214. 172-190 doi:10.1016/j.gca.2017.06.047 | Journal (article/letter/editorial) | | Olivine is a minor phase in this MM, and the forsterite mol% ranges from ~100 to 89 (Fig. 3c). The low-Ca...which could dissolve organic material. Unlike meteorite parent bodies in which aqueous fluid mobilizes...1985). The organic nanoglobules in the Tagish Lake meteorite display similar layers that contain predominantly...al., 2013) and matrices (Ivuna, Orgueil and Tagish Lake, see electronic supplementary data S3) from aqueously...phyllosilicates during aqueous alteration on their meteorite parent bodies. 4-3. Mineralogical evidence of |
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