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Relationships among lodranites and acapulcoites: Noble gas isotopic abundances, chemical composition, cosmic-ray exposure ages, and solar cosmic ray effects

Weigel, Andreas, Eugster, Otto, Koeberl, Christian, , Neumann, Sonja(1999). Relationships among lodranites and acapulcoites: Noble gas isotopic abundances, chemical composition, cosmic-ray exposure ages, and solar cosmic ray effects. Geochimica et Cosmochimica Acta, 63(2), 175-192. https://doi.org/10.1016/S0016-7037(99)00012-5

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Datasets

numbertitleMethodsvariables analyzed
1He, Ne, and Ar concentrations and isotopic ratios of lodranitesMSHe4, Ne20, Ar40, He4_He3, Ne22_Ne21, Ar40_Ar36, Ne20_Ne22, Ar36_Ar38
2He, Ne, and Ar concentrations and isotopic ratios of acapulcoitesMSHe4, Ar40, Ne20, Ne20_Ne22, He4_He3, Ne22_Ne21, Ar40_Ar36, Ar36_Ar38
3 He, Ne, and Ar concentrations and isotopic ratios of Lodran mineral separatesMSNe20, Ar36_Ar38, He4_He3, He4, Ar40_Ar36, Ne20_Ne22, Ne22_Ne21, Ar40
4He, Ne, and Ar concentrations and isotopic ratios of Lodran mineral separatesMSNe20, Ar40_Ar36, Ar36_Ar38, He4_He3, Ne20_Ne22, Ne22_Ne21, He4, Ar40
5Major and trace element composition of 4 lodranite samples analyzed in BernINAA, RNAANi, Co, Cr, Ca, Hf, Th, Zn, K, Mn, As, Y, Fe, Na, Te, La, Sc
6Major, minor, and trace element composition of 9 lodranite samples analyzed in ViennaINAA, EMPAg, Se, MnO, Ce, Th, W, TiO2, CaO, La, Zn, Eu, K, Na, Al2O3, U, Au, Co, Ir, Br, Sm, Tb, Nd, As, Sb, Ta, Cs, Ga, Ba, SiO2, FeO, Rb, Ni, MgO, Yb, Gd, Sc, Cr, Hf, Lu, Sr, Tm, Zr
7Chemical abundances of lodranites and acapulcoites relevant for the interpretation of the noble gas data (in weight %)INAAFe, Na, Si, Cr, Ti, Al, K, Mg, Ni, Co, Mn, Ca
8Trapped, radiogenic and cosmogenic He, Ne, and Ar of lodranites and acapulcoitesMSNe20tr, He4, Ar40, Ar38cos, Ar36tr, He3cos, Ne22_Ne21cos, Ne21cos
9Trapped, radiogenic, and cosmogenic He, Ne, and Ar of Lodran mineral separatesMSAr40, Ne20tr, Ne21cos, Ar36tr, He3cos, He4, Ar38cos, Ne22_Ne21cos
10Trapped, radiogenic and cosmogenic He, Ne, and Ar of Lodran mineral separatesMSAr36tr, Ar38cos, Ar40, Ne21cos, He4, Ne22_Ne21cos, He3cos, Ne20tr
MB-CMetBase 2111 CompilationINAA, Unknown, NAAYb, Ir, La, Th, Nd, Se, Sm, U, Sb, Ta, Co, W, Lu, Zn, Tb, Au, Ba, Gd, Rb, Sc, Br, Ni, Tm, Ce, Na, As, Cs, Ag, Eu, Cr, Ga, K, He3, Ar38, Ne20, Ar40, Ar36, Ne21, He4, Ne22, Hf, Te, Mn, Y, Fe, Ca

Methods

method namelaboratorymethod comment More details are available for the following variables
ELECTRON MICROPROBEJOHNSON SPACE CENTERCameca CAMEBAX
INSTRUMENTAL NEUTRON ACTIVATION ANALYSISUNIVERSITAET WEINN/A
MASS SPECTROMETRYUNKNOWNmethods of Eugster et al., 1993
NEUTRON ACTIVATION ANALYSISUNKNOWNN/A
RADIOANALYTICAL NEUTRON ACTIVATIONUNIVERSITAET BERNN/A
UNKNOWNUNKNOWNN/A

Samples

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