The Meteoritical Bulletin, No. 101 1 2 3 3 5 ALEX RUZICKA , JEFFREY GROSSMAN , AUDREY BOUVIER , CHRISTOPHER D.K. HERD and CARL B. AGEE 1Cascadia Meteorite Laboratory, Department of Geology, Portland State University, Portland, Oregon, 97207-0751, USA 2NASA Headquarters, Mail Stop 3E46, 300 E Street, SW, Washington, D.C., 20546, USA 3Western University, Department of Earth Sciences, London, Ontario, N6A B57, Canada 4University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, Alberta, T6G 2E3, Canada 5Institute of Meteoritics, Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico, 87131-0001, USA Abstract: Meteoritical Bulletin 101 contains 2639 meteorites accepted by the Nomenclature Committee in 2012, including 1 fall (Battle Mountain), with 2308 Ordinary chondrites, 156 Carbonaceous chondrites, 63 HED achondrites, 17 Relict meteorites, 16 Rumuruti chondrites, 15 Enstatite chondrites, 15 Ureilites, 10 Iron meteorites, 9 Lunar meteorites, 9 Primitive achondrites, 8 Ungrouped achondrites, 7 Mesosiderites, 4 Martian meteorites, and 2 Pallasites, and with 1812 from Antarctica, 437 from Asia, 301 from Africa, 43 from South America, 21 from Europe (including Russia), 21 from North America, 3 from Oceania, and 1 from Unknown. Information about approved meteorites can be obtained from the Meteoritical Bulletin Database (MBD) available on line at http://www.lpi.usra.edu/meteor/ . A complete copy of this Bulletin (136 pages) is available electronically. Table of Contents 1. Information on Type Specimen Repositories …………………….…………………..………E2 2. Alphabetical text entries for non-Antarctic meteorites ...….……..…………….……….……E2 3. Bibliography ……………………..…………….……….…………………………………...E70 4. Alphabetical listing of all meteorites ………..…….………………………………………..E71 5. Corrected entries ………………..…………………………………………………..……..E131 6. Listing of institutes and collections …..…………………………………………………...E132 7. Acknowledgments …………………..……………………………..………………………E136 The Meteoritical Bulletin was published on 19 AUG 2015 without the complete listing, it has been corrected. 1. Information on Type Specimen Repositories The deposit of a type specimen into a repository is a requirement of any new meteorite submission, per Section 7 of the Guidelines for Meteorite Nomenclature. An acceptable Type Specimen Repository is defined as an institution that has a well-curated meteorite collection and a long-standing commitment to curation. The intent of this definition is to minimize the risk that type specimens will be mislocated or lost; in some cases, the type specimen represents the only material readily available for scientific research. In order to provide clarification on the intent of the definition of a Type Specimen Repository, the Nomenclature Committee has established a set of requirements for an acceptable repository, including: identified personnel responsible for meteorite curation; institutional ownership or permanent custory (and therefore oversight) of the collection to which the type specimens belong; a stated intent that the type specimens be made available to qualified scientific investigators; and a demonstrated long-term commitment toward establishing or maintaining a curated meteorite collection. Most traditional or extant repositories meet these criteria; however, institutions seeking to become repositories should ensure that these criteria are met. Details on the process for establishing a Type Specimen Repository can be found in the Nomenclature Committee’s Rules of Procedure. As part of the process of elaborating on the definition of an acceptable Type Specimen Repository, the Nomenclature Committee gathered updated information on extant repositories – something that had not been done in many years. This information is now available in the list of addresses cited in the Meteoritical Bulletin; those institutions that have been approved as a repository for type specimens are marked on that page with a green checkmark. 2. Alphabetical text entries for non-Antarctic meteorites Al Huwaysah 010 22°44.921’N, 55°28.331’E Az Zahirah, Oman Found: 2010 Jan 2 Classification: Ungrouped achondrite History: Two stones with a total mass of 1411.79 g were found in Oman during a search for meteorites. Physical characteristics: The stones are reddish brown and lack fusion crust. Variations in color result from weathering effects. Petrography: (B. Hofmann, NMBE; F. Zurfluh, C. Opitz, N. Greber, Bern; E. Gnos, MHNGE): The rock shows an equigranular texture, with grain sizes of 0.2-0.5 mm. It consists of ~70 vol% of olivine (Fa16.5, molar Fe/Mn=31.8), showing numerous small pyroxene inclusions along grain boundaries, a total of 12 vol% pyroxene, mainly augite (Fs10.8Wo43.7) and a minor amount of orthopyroxene (Fs13.9Wo0.7), 6 vol% of feldspar (Ab70.3), poikilitically enclosing olivine and pyroxene, 5 vol% of chromite and 1 vol% of apatite. Accessory phases are iron (basically Ni free), troilite, fine graphite and Ni-rich iron sulfide (as inclusion in chromite). Terrestrial weathering products include 6 vol% of iron oxides (maghemite), iron hydroxides, traces of gypsum and a Mg-rich weathering phase. The Fe-oxides often occur as tabular phases (up to 0.5 mm in length) along grain boundaries and penetrating the silicate phases. The rock is very weakly shocked (S2). Strong weathering. Geochemistry: Bulk analysis showed Fe/Mn (wt%) = 65.2, Ni = 435 ppm. Oxygen isotopes (R.C. Greenwood, OU, ethanolamine thioglycollate cleaned, mean of two replicates): δ17O = 2.31, δ18O = 4.73, and Δ17O = -0.14 (all per mil). Classification: Achondrite, ungrouped. The stone is related to brachinites and ungrouped achondrites NWA 1500 and NWA 4042. 2 Specimens: All at NMBE. Alkali Flat 32°18.360’N, 108°54.228’W New Mexico, USA Found: 2011 Mar 7 Classification: Ordinary chondrite (L5) History: A single stone was found by Ben Fisler on the south alkali salt flat of the Animas Valley. Physical characteristics: Reddish brown, rough weathered exterior, saw cut reveals fine-grained sulfide and metal set in dark-brown matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished thin section shows olivine, pyroxene, a few equilibrated chondrules, troilite, and kamacite. Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa24.7±0.4, Fe/Mn=50±3, n=10; low-Ca pyroxene Fs21.0±0.5Wo1.6±0.2, Fe/Mn=30±2, n=10. Classification: Ordinary chondrite (L5), weathering grade W2. Specimens: 5.6 g including a polished thin section on deposit at UNM. Ben Fisler holds the main mass. Anthony Gap 32°0’21.04"N, 106°33’37.02"W Dona Ana County, New Mexico, United States Found: 8 Oct 2011 Classification: Ordinary chondrite (L6) History: Rik Villareal found this meteorite near Anthony Gap, New Mexico, while he was target shooting with his two sons. The meteorite was partially imbedded in the hill slope that they were using as a backstop. Physical characteristics: Single stone, exterior covered by approximately 75% dark smooth fusion crust. A saw cut reveals abundant, fine-grained metal/sulfide and some larger grains up to 3 mm, a few faint chondrules, fine weathering veins, groundmass reddish brown to black. Petrography: (C. Agee, UNM) Microprobe examination of a probe mount shows an equilibrated ordinary chondrite texture with a few relict chondrules and relatively coarse plagioclase grains. Approximately 50- 70% of the kamacite is oxidized, abundant troilite. Geochemistry: Mineral compositions: olivine, Fa25.3±0.6; low-Ca pyroxene, Fs21.1±0.6Wo1.5±0.2. Classification: Ordinary chondrite (L6), weathering grade W2. Specimens: 31.43 g including a probe mount on deposit at UNM, Rik Villareal holds the main mass. Aubrey Hills 34°22.838’N, 114°10.023’W Mohave County, Arizona, United States Found: 23 Sept 2010 Classification: Ordinary chondrite (H6) History: The meteorite was found by Myke Steighler while hunting for meteorites on alluvial flats southwest of Standard Wash, Lake Havasu City, Arizona. The meteorite was observed amongst desert- varnished stones. Physical characteristics: Single, smooth, 560.8 g trapezoidal stone, remant fusion crusted. Interior shows two distinct zones: upper 3/4 is light-colored and shows minor weathering (W1), and bottom quarter (presumably embedded in the ground), heavily weathered (W4). Junction between fresh and weathered portions is sharp. Petrography: (L. Garvie, ASU): The unweathered part is largely recrystallied, vuggy, with a few recognizable chondrules including BO, PP, and RP (mostly <1 mm). The studied section contains one large, 2.5 mm, barred-olivine chondrule, with the bars arranged in a pentagonal shape. The matrix minerals protruding into the vugs are often euhedral. Plagioclase and chromite abundant, to 300 μm. Kamacite (<1 mm) common, with rare plessite grains (<50 μm). Troilite grains untwinned and single crystal. Minor Cl-phosphate grains to 250 μm. Olivines show sharp optical extinction. 3 Geochemistry: Olivine Fa18.9±0.3 (range Fa18.4-19.4, n=12), FeO/MnO=39.9±2.7. Low Ca pyroxene Fs16.6±0.1Wo1.4±0.1, n=6. Augite Fs6.2-6.3Wo45.3, n=2. Feldspar An12.6Or5.0, n=1. Classification: Ordinary chondrite (H6) Specimens: 26.03 g, one polished section and probe mount at ASU. Main mass held by Myke Steighler of Lake Havasu City, AZ. Battle Mountain 40.66813°N, 117.18913°W Humboldt County, Nevada, USA Fell: 2012 Aug 22 06:17 (UTC) Classification: Ordinary chondrite (L6) History: The fall was observed in weather radar imagery from the US NEXRAD radar network, operated by the US National Weather Service. The discovery and analysis was done by Dr. Marc Fries, Galactic Analytics LLC. The KLRX radar in Elko, Nevada, is approximately 33 km from the fall site and recorded the fall in eight radar sweeps between 0619.26 UTC and 0621.03 UTC. This time span of 97 s is short compared to other meteorite falls observed by radar. This could be a result of meteorite production by a single, large breakup event, by relatively little fragmentation, or a combination of the two factors. The first stone was found on September 1, 2012, 10:50 AM (PDT) by Robert Verish; it weighs 19.25 g. As of 3 Oct 2012, at least 23 stones with a total mass of ~2.9 kg have been reported.