Prinz, M., Keil, K., Hlava, P. F., Berkely, J. L., Gomes, C. B. & Curvello, W. S. (1977) Studies of Brazilian meteorites. III - Origin and history of the Angra DOS Reis achondrite: Earth and Planetary Science Letters 35 (2): 317-330. (June 1977)

Dowty, E. (1977) Phosphate in Angra Dos Reis - Structure and composition of the Ca3(PO4)2 minerals. Earth and Planetary Science Letters 35 (2): 347-351. (June 1977)

Reference Search (possible matching items)

	Prinz, M., Keil, K., Hlava, P.F., Berkley, J.L., Gomes, C.B., Curvello, W.S. (1977) Studies of Brazilian meteorites. Earth and Planetary Science Letters, 35 (2) 317-330 doi:10.1016/0012-821x(77)90134-0	Journal (article/letter/editorial)
	R I T E S , III. ORIGIN AND HISTORY OF THE ANGRA DOS REIS ACHONDRITE M. P R I N Z Department of Mineral...87131 (USA} C.B. G O M E S Instituto de Geociencias, Universidade de Sao Paulo, Sao Paulo (Brasil) and W...W.S. C U R V E L L O Museu Nacional, Rio de Janeiro (Brasil) Received November 12, 1976 Revised version...version received March 14, 1977 The Angra dos Reis meteorite fell in 1869 and is a unique achondrite. It...(Fo53.1 ; 1.3% CaO), green hercynitic spinel, whitlockite (merrillite), metallic Ni-Fe, troilite, as well
	*Gomes, Celso B., Keil, Klaus (1980) Brazilian Stone Meteorites. University of New Mexico Press, Albuquerque. 161pp.*	Book
	523.5'1'0981 ISBN 0-8263-0543-1 2. Meteorites—Brazil. II. Title. 80-5333 © 1980 by the University of...recognize a meteorite. Brazilian stone meteorites. 7.1. ACHONDRITES . 7.1.1. Fassaite achondrite. Angra dos Reis...Reis . 7.1.2. Augite-olivine achondrite . Governador Valadares. 7.1.3. Monomict pigeonite-plagioclase...e achondrites . . . Ibitira. Serra de Mage.:. 7.2. CHONDRITES. 7.2.1. H-group chondrites. Avanhandava.... Itapicuru Mirim . Macau. Marflia. Sao Jose do Rio Preto. Sete Lagoas. Uberaba. 7.2.2. L-group chondrites
	*Hohenberg, C.M., Hudson, B., Kennedy, B.M., Podosek, F.A. (1981) Xenon spallation systernatics in Angra dos Reis. Geochimica et Cosmochimica Acta, 45 (10) 1909-1915 doi:10.1016/0016-7037(81)90021-1*	Journal (article/letter/editorial)
	Xenon spallation systematics in Angra dos Reis C. M. HOHENBERG.B. HUDSON.B. M. KENNEDY and F. A. P~LIOSEK...have resolved literature Xe data for the Angra dos Reis meteorite into constituent spallation. fission and...and rare earth spallation Xe compositions. Angra dos Reis spallation Xe compositions are systematically...conditions (geometry and shielding). Thus the Angra dos Reis data appear to be superior to lunar data for...isotopes we have used for the decomposition of Angra dos Reis are ‘*Xe. ‘‘Xe. and ““Xe. These particular
	Wasserburg, G.J., Tera, Fouad, Papanastassiou, D.A., Huneke, J.C. (1977) Isotopic and chemical investigations on Angra dos Reis. Earth and Planetary Science Letters, 35 (2) 294-316 doi:10.1016/0012-821x(77)90133-9	Journal (article/letter/editorial)
	[4] ISOTOPIC AND CHEMICAL INVESTIGATIONS ON ANGRA DOS REIS G.J. WASSERBURG, FOUAD TERA, D.A. PAPANASTASSIOU...Sm, U and Th for total meteorite and mineral separates of the Angra dos Reis achondrite. U-Pb, Th-Pb...total meteorite and for high-purity whitlockite in Angra dos Reis. This establishes Angra dos Reis as an...Measured a7sr/86Sr in pyroxene and whitlockite for Angra dos Reis (ADOR) are distinctly below BABI by...for the magmatism on the parent planets of Angra dos Reis and the basaltic achondrites (BABI) then the
	*Hohenbebg, C.M. (1970) Xenon from the Angra dos Reis meteorite. Geochimica et Cosmochimica Acta, 34 (2) 185-191 doi:10.1016/0016-7037(70)90005-0*	Journal (article/letter/editorial)
	Northern Ireland Xenon Department from the Angra dos RAGSmeteorite of Physics, (Received 22 Augmt...Abstract-Xenon released in stepwise heating of the Angra dos Reis stone is found to be largely cosmogenic (from...taneous fission of 82 million year Pu244 ). This meteorite these two components observed to date with some...eucrites which results chiefly from barium, Angra dos Reis xenon appears to have significant contributions...rare earth targets. A previous report that Angm dos Reis contains fission xenon of a new type is not substantiated
	*Lugmair, G.W., Marti, K. (1977) SmNdPu timepieces in the Angra dos Reis meteorite. Earth and Planetary Science Letters, 35 (2) 273-284 doi:10.1016/0012-821x(77)90131-5*	Journal (article/letter/editorial)
	[41 Sm-Nd-Pu TIMEPIECES IN THE A N G R A DOS REIS METEORITE G.W. LUGMAIR and K. MARTI Chemistry Department...pyroxene and phosphate mineral separates of Angra dos Reis. A pyroxene-phosphate internal isochron age...system where the Angra dos Reis parent body formed. The exposure age of Angra dos Reis, as obtained by...lSOSm/149Sm in Angra dos Reis by 6 parts in 104. 1. Introduction The unique meteorite Angra dos Reis (ADOR)...[6]. We considered it important to study this meteorite for the following reasons. No reliable internal
	*Störzer, D., Pellas, P. (1977) Angra dos Reis: Plutonium distribution and cooling history. Earth and Planetary Science Letters, 35 (2) 285-293 doi:10.1016/0012-821x(77)90132-7*	Journal (article/letter/editorial)
	R A DOS REIS: PLUTONIUM DISTRIBUTION AND COOLING HISTORY D. ST()RZER and P. PELLAS Laboratoire de Min~ralogie...January 3, 1977 The preatmospheric mass of Angra dos Reis is estimated to be about 80 kg, based on cosmic...instantaneous cooling (>70 K per m.y.) of the Angra dos Reis material 4.55 b.y. ago. This fast cooling is...since that time. If the 4He excess found in Angra dos Reis is a real effect, the source of this excess...studies o f the charged particle track record in Angra dos Reis (ADOR) pyroxenes provided conflicting results
	*Crozaz, Ghislaine (1979) Uranium and thorium microdistributions in stony meteorites. Geochimica et Cosmochimica Acta, 43 (1) 127-136 doi:10.1016/0016-7037(79)90052-8*	Journal (article/letter/editorial)
	in phosphates, usually whitlockite and/or chlorapatite. Wherever whitlockite and chlorapatite coexist...variable from meteorite to meteorite and sometimes also show large variations in the same meteorite. A clinopyroxene...that these elements were fractionated during the meteorite formation. Fission tracks in meteorites are due...CROZAZ(1974) showed that Th was indeed enriched in the whitlockite and concluded that 244Pu probably followed Th...was present in the solar system at the time of meteorite formation, is geochemically linked to both U and
	*Ma, M.-S., Murali, A.V., Schmitt, R.A. (1977) Genesis of the Angra dos Reis and other achondritic meteorites. Earth and Planetary Science Letters, 35 (2) 331-346 doi:10.1016/0012-821x(77)90135-2*	Journal (article/letter/editorial)
	Netherlands [41 G E N E S I S O F T H E A N G R A DOS R E I S A N D O T H E R A C H O N D R I T I C M E...element abundances were determined in seven Angra dos Reis samples including whole rocks, fassaite (clinopyroxene)...(clinopyroxene), olivine and whitlockite separates via sequential instrumental neutron activation analysis...earth element (REE) abundance pattern for the Angra dos Reis clinopyroxene separates shows a concave downward...lithophile trace elements were highly enriched in the whitlockite separate as expected (e.g. La ~. 370 ppm). The
	*Jones, John H. (1982) The geochemical coherence of Pu and Nd and the ratio of the early solar system. Geochimica et Cosmochimica Acta, 46 (10) 1793-1804 doi:10.1016/0016-7037(82)90118-1*	Journal (article/letter/editorial)
	this low ratio to galactic nucleosynthesis and meteorite age dating are briegy discussed. INTRODUCIlON...large ~n~ntrations of fission-type xenon in the whitlockite [Cal(PO.&] of the St. Severin (LL6) chondrite...initial ‘&Pu abundance in the solar system and the meteorite ‘“Pu chronometer have been plagued by the lack...Wasserburg et al. (1969a) on the whitlockite of the same meteorite (0.035)-implying Pu-U fractionation...showed that the Th/U ratio of the St. Severin whitlockite was 11 and that the Th/U ratio of St. Severin
	Podosek, F.A., Huneke, J.C. (1971) Isotopic composition of 244Pu fission xenon in meteorites: Reevaluation using lunar spallation xenon systematics. Earth and Planetary Science Letters, 12 (1) 73-82 doi:10.1016/0012-821x(71)90057-4	Journal (article/letter/editorial)
	xenon in four meteorites (Pasamonte, Kapoeta, Angra dos Reis, and St. Severin) has been reevaluated. Spallation...of fission Xe in the achondrites Pasamonte, Angra dos Reis, and Kapoeta and the chondrite St. Severin...0 AVCC 72 -+2 131 ±3 55 -+3 St. Severin whitlockite =-100 ~100 100 ±50 ~100 Kapoeta ~100 Pasamonte...Independent AVCC* Hohenberg et al. [3] Munk [61 Angra dos Reis ~100 ~100 4.9 ±0.3 AVCC & Air * AVCC: average...t r a t e d by Hohenberg's experim e n t on Angra dos Reis [7]. With the availability of lunar data, more
	Eugster, O, Michel, Th, Niedermann, S (1991) 244Pu-Xe formation and gas retention age, exposure history, and terrestrial age of angrites LEW86010 and LEW87051: Comparison with Angra dos Reis. Geochimica et Cosmochimica Acta, 55 (10) 2957-2964 doi:10.1016/0016-7037(91)90461-d	Journal (article/letter/editorial)
	angrites LEW86010 and LEW87051: Comparison with Angra dos Reis 0. EUGSTER,TH . MICHEL, and S. NIEDERMANN ...those observed for the basaltic achondrite Angra dos Reis, until recently the only known angrite. Fission...than that of Angra dos Reis. Thus, LEW86010 formed contemporaneously with Angra dos Reis for which previous...retention age, a feature observed earlier for Angra dos Reis. LEW8705 1 shows the lowest nominal U/Th-4He...retention age (4 Ma) ever observed for a stone meteorite. The cosmic-ray exposure histories are very different
	Alibert, Chantal, Norman, Marc D., McCulloch, Malcolm T. (1994) An ancient Sm-Nd age for a ferroan noritic anorthosite clast from lunar breccia 67016. Geochimica et Cosmochimica Acta, 58 (13) 2921-2926 doi:10.1016/0016-7037(94)90125-2	Journal (article/letter/editorial)
	University, Canberra A.C.T. 0200, Australia %entre de Recherches PCtrographiques et Gbchimiques (CRPG)... M. D. Norman, and M. T. McCulloch 2922 SAMPLE DE~RI~~ON AND ANALYTICAL TECHNIQDES Ferroan noritic...the Murchinson carbonaceous chondrite and the Angra DOS Reis angrite, and Sr and Nd standards, are reported... 56.8 5.76 6.01 0.211 17.6 18.9 0.651 Angm Dos Reis (chip) Murchimson(chip) La Jolla(31 runs, 1990/91)...lunar hwcia 67016,328 and ,326 and for ADOR meteorite. weight (mg) 31.1 ,328 plagioclasc 4.2 ,328 plagioclase
	Keil, Klaus (2012) Angrites, a small but diverse suite of ancient, silica-undersaturated volcanic-plutonic mafic meteorites, and the history of their parent asteroid. Geochemistry, 72 (3) 191-218 doi:10.1016/j.chemer.2012.06.002	Journal (article/letter/editorial)
	metallic Fe,Ni, troilite, titanomagnetite, whitlockite, ilmenite, and very rare carbonates, celsian...an angrite, the type meteorite that fell into the Bay of Angra dos Reis, Brazil, at about 5:00 a.m. in...by the ADORABLES (1976), the members of the Angra dos Reis Consortium, of the only angrite known at the...fall had been observed by a local judge and the meteorite weighing ∼1500 g was recovered by a diver from...Plutonic angrites Date of fall/ﬁnd Location Angra dos Reis (stone)a LEW 86010 NWA 2999b NWA 3158b NWA
	*Hohenberg, Charles M., Bernatowicz, Thomas J., Podosek, Frank A. (1991) Comparative xenology of two angrites. Earth and Planetary Science Letters, 102 (2) 167-177 doi:10.1016/0012-821x(91)90006-4*	Journal (article/letter/editorial)
	Xe analyses in stepwise heating of the angrite meteorite Lewis Cliff 86010 and of a comparative study of...component structures in this meteorite and in the first known angrite, Angra dos Reis. Both meteorites are poor...the light rare earth elements (REE). Neither meteorite shows evidence for the presence of excess 129Xe...Lewis Cliff 86010 differs somewhat from that in Angra dos Reis, primarily in a lower relative yield of the...during cosmic ray exposure for the Lewis Cliff Meteorite, an effect opposite to that suggested by neutron
	*Jones, J.H., Burnett, D.S. (1979) The distribution of U and Pu in the St. Severin chondrite. Geochimica et Cosmochimica Acta, 43 (12) 1895-1905 doi:10.1016/0016-7037(79)90003-6*	Journal (article/letter/editorial)
	mineralogical location of the fission Xe within the meteorite. This is of importance because the 244Pu/238U...bulk of Pu and U are unfractionated within this meteorite. Due to recoil, the 244Pu fission Xe is found...subsequent to the textural recrystallization of the meteorite. Our data support the interpretation of Podosek...high (0.03) 244Pu/ 23U ratio in a separate of whitlockite* [Ca3(P04)2] from the St. Severin chondrite (WASSERBURG...indicating that Pu was enhanced relative to U in whitlockite and that 0.015 should be used for the solar system
	Lofgren, G.E., Lanier, A.B. (1992) Dynamic crystallization experiments on the Angra dos Reis achondritic meteorite. Earth and Planetary Science Letters, 111 (2) 455-466 doi:10.1016/0012-821x(92)90196-3	Journal (article/letter/editorial)
	crystallization experiments on the Angra dos Reis achondritic meteorite G.E. Lofgren a and A.B. Lanier...clearly have a melt origin the hypothesis that Angra dos Reis (ADOR) itself is a cumulate is being reconsidered...calcic olivine with t r a c e s o f spinel, whitlockite, k i r s c h s t e i n i t e w i t h i n t h...[4] has r e n e w e d i n t e r e s t in A n g r a dos R e i s ( A D O R ) , t h e " t y p e " a n g r i...and CO 2. The intrinsic oxygen fugacity of Angra dos Reis was determined by Brett et al. [11] to be between
	Pellas, P., Perron, C., Crozaz, G., Perelygin, V.P., Stetsenko, S.G. (1983) Fission track age and cooling rate of the Marjalahti pallasite. Earth and Planetary Science Letters, 64 (3) 319-326 doi:10.1016/0012-821x(83)90093-6	Journal (article/letter/editorial)
	P. Perelygin 2 and S.G. Stetsenko 2 1 Laboratoire de MinOralogie du Museum et C.N.R.S., 61 rue Buffon...and merrillite (phosphate previously called whitlockite) from the Marjalahti pallasite. The merrillite...were derived from a variety of depths in the meteorite. A small fraction of both olivines and merrillites...elevations during the cosmic ray exposure of this meteorite has been reported by Begemann et al. [13]. They...in Allegan chondrite. 323 (175 Myr) of this meteorite [1,12,13]. It is possible that the absence of
	Xie, Xiande, Yang, Hexiong, Gu, Xiangping, Downs, Robert T. (2015) Chemical composition and crystal structure of merrillite from the Suizhou meteorite. American Mineralogist, 100 (11) 2753-2756 doi:10.2138/am-2015-5488	Journal (article/letter/editorial)
	crystal structure of merrillite from the Suizhou meteorite Xiande Xie1,4, Hexiong Yang2,, Xiangping Gu3...98(Mg0.95Fe0.06)Σ1.01 (P1.00O4)7, from the Suizhou meteorite, a shock-metamorphosed L6-chondrite. Suizhou merrillite...[(Ca9–xREE)x(Na1–xox) (PO4)]16+ in terrestrial whitlockite, terrestrial/extraterrestrial bobdownsite, meteoritic...REE-merrillite. Keywords: Merrillite, whitlockite, Suizhou meteorite, crystal structure, Raman spectroscopy...similarities between merrillite and terrestrial whitlockite*, ideally Ca9Mg(PO4)6(PO3OH), there has been a
	Reed, S.J.B., Smith, D.G.W. (1985) Ion probe determination of rare earth elements in merrillite and apatite in chondrites. Earth and Planetary Science Letters, 72 (2) 238-244 doi:10.1016/0012-821x(85)90008-1	Journal (article/letter/editorial)
	to determine La, Ce, Pr and Nd in merrillite (whitlockite) in 15 ordinary chondrites and Ce in apatite...apatite and merrillite (the meteoritic form of whitlockite [3]) in chondrites cannot easily be separated...this technique has considerable advantages for meteorite studies in particular, by virtue of the almost...the time interval between nucleosynthesis and meteorite parentbody formation can be obtained from estimates... 1435-1456, 1973. 3 E. Dowty, Phosphate in Angra dos Reis: structure and composition of the Ca3(PO4)
	Crozaz, Ghislaine, McKay, Gordon (1990) Rare earth elements in Angra dos Reis and Lewis Cliff 86010, two meteorites with similar but distinct magma evolutions. Earth and Planetary Science Letters, 97 (3) 369-381 doi:10.1016/0012-821x(90)90052-y	Journal (article/letter/editorial)
	The Netherlands [CLI Rare earth elements in Angra dos Reis and Lewis Cliff 86010, two meteorites with...measurements in merrillite and fassaite of Angra dos Reis (ADOR). The rare merrilfite is highly enriched...melt whose composition is close to that of the meteorite bulk composition. The ADOR melt had higher REE...processes. 1. Introduction The A n g r a dos Reis ( A D O R ) meteorite was, until recently, the only k n o...achondrites (BABI) [2] a n d this indicates that the meteorite was formed from p a r e n t material that was
	*Prinzhofer, A, Papanastassiou, D.A, Wasserburg, G.J (1992) Samarium-neodymium evolution of meteorites. Geochimica et Cosmochimica Acta, 56 (2) 797-815 doi:10.1016/0016-7037(92)90099-5*	Journal (article/letter/editorial)
	mesosiderite; as well as on Acapulco, an unclassified meteorite with chondritic chemical composition and a highly...there is a new report on the Sm-Nd system in this meteorite (BROUXELand TATSUMOTO,1991 f. ~ETR~~PHY fbitira...fbitira Ibitira is a eucrite which fell in Brazil in 1957. It is composed of pyroxene (60%) and plagioclase...which commonly show inclusions of pyroxene, whitlockite, and oxide minerals. The pyroxene is composed...mantles of whitlockite. The mode of occurrence of the mineral phases, with the exception of whitlockite, is
	*Podosek, F.A (1972) Gas retention chronology of Petersburg and other meteorites. Geochimica et Cosmochimica Acta, 36 (7) 755-772 doi:10.1016/0016-7037(72)90086-5*	Journal (article/letter/editorial)
	on a neutronirradiated sample of the eucrite meteorite Petersburg. Xenon spallation corrections are made...systematics to the systematics derived for the Angra dos Reis meteorite is discussed. Correlation systematics...have a unique composition, but varies from one meteorite to another, due to variations in either cosmic...to HOHENBERG’B (1970) thermal releasedata on Angra dos R&s (ADR) f&led to produce results compatible...described in text from HOHENBERO’S (1970) data for Angra dos Reis; numbers are release temperatures in hundreds
	Crozaz, Ghislaine, Sibley, Scott F., Tasker, Douglas R. (1982) Uranium in the silicate inclusions of stony-iron and iron meteorites. Geochimica et Cosmochimica Acta, 46 (5) 749-754 doi:10.1016/0016-7037(82)90026-6	Journal (article/letter/editorial)
	variable from meteorite to meteorite and sometimes also exhibit variations in the same meteorite. Uranium...motivation of this work was to identify in a given meteorite as many U-rich phases as possible which could...plutonium and/or determine the thermal history of the meteorite. The decay of 2”Pu (an extinct radionuclide with...phosphates, usually merrillite (formerly called whitlockite) and/or chlorapatite, are enriched in uranium...probably plutonium) were fractionated during the meteorite formation. In the present study, we concentrated
	Hughes, J. M., Jolliff, B. L., Gunter, M. E. (2006) The atomic arrangement of merrillite from the Fra Mauro Formation, Apollo 14 lunar mission: The first structure of merrillite from the Moon. American Mineralogist, 91 (10) 1547-1552 doi:10.2138/am.2006.2021	Journal (article/letter/editorial)
	relationship between merrillite and terrestrial whitlockite, and the solution of the Fra Mauro merrillite...lunar phase. Lunar merrillite and terrestrial whitlockite have largely similar atomic arrangements, but...due to the presence or absence of hydrogen. In whitlockite, H is an essential element and allows the charge...charge balance. Hydrogen is incorporated into the whitlockite atomic arrangement by disordering one of the...was tentatively identiÞed from the Moon was whitlockite, ideally Ca9(Mg,Fe2+)(PO4)6[PO3(OH)], a phosphate