Browsing ELibrary by Author "Franchi I.A."
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Browsing ELibrary by Author "Franchi I.A."
Now showing items 1-7 of 7
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Treiman A.H.; Lindstrom D.J.; Schwandt C.S.; Franchi I.A.; Morgan M.L. (2002)A possible mesosiderite meteorite was found in the area of the Putorana Plateau, Noril'sk district, Siberia, Russia. Although this rock resembles a mesosiderite in its hand-sample aspect and in having Ni-bearing iron metal, ...
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Franchi I.A.; Wright I.P.; Pillinger C.T. (1993)A suite of iron meteorites has been analysed for their content and isotopic composition of nitrogen to investigate the behaviour of nitrogen in the iron meteorite parent bodies and any constraints this can place on the ...
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Bridges J.C.; Franchi I.A.; Hutchison R.; Sexton A.S.; Pillinger C.T. (1998)We report results of a study into the size, chemical composition, mineralogy and oxygen isotopic compositions of 40 chondrules, in the size range 1-9 mm diameter, separated from Chainpur (LL3.4) and Parnallee (LL3.6). These ...
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Folco L.; Bland P.A.; D’Orazio M.; Franchi I.A.; Kelley S.P.; Rocchi S. (2004)DaG 896 is an olivine-rich microporphyritic rock of komatiitic composition. Both the olivine composition (Fa17.5±2.1, [Mn/Mg] = 0.0061) and the bulk oxygen isotopic composition (δ O = +2.55, δ O = +3.50) indicate that DaG ...
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LIGHT ELEMENT GEOCHEMISTRY OF THE TAGISH LAKE C12 CHONDRITE: COMPARISON WITH CI1 AND CM2 METEORITES Grady M.M.; Verchovsky A.B.; Franchi I.A.; Wright I.P.; Pillinger C.T. (2002)We have studied the carbon and nitrogen stable isotope geochemistry of a small pristine sample of the Tagish Lake carbonaceous chondrite by high-resolution stepped-combustion mass spectrometry, and compared the results ...
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Bridges J.C.; Franchi I.A.; Sexton A.S.; Pillinger C.T. (1999)We report the results of oxygen isotopic analyses made on mineral separates prepared from chondrules and whole meteorites (UOCs). Feldspar/glass (mainly chondrule mesostasis) is more 16O-poor than the olivine/low Ca pyroxene ...
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Assonov S.S.; Franchi I.A.; Pillinger C.T.; Semenova A.S.; Shukolyukov Yu.A.; Verchovsky A.B.; Iassevitch A.N. (2002)Fines, microbreccias and agglutinates from the Luna 16 mature regolith 1635 and fines from the immature/submature Luna 24 regolith have been analysed for N and argon isotopes in order to understand the origin of isotopically ...
Now showing items 1-7 of 7
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