Minor and trace elements in some meteoritic minerals

Allen, Ralph O.; Mason, Brian

doi:10.1016/0016-7037(73)90081-1

Cited by 74 publications

(50 citation statements)

References 37 publications

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“…The trace element concentrations are considerably higher than in previously-analysed meteoritic pyroxenes (ALLEN and MASON, 1973), and the pattern of distribution is somewhat different. Significantly, however, the distribution pattern shows a remarkable parallelism, for some 20 elements, with that of the lunar high-Ti basalts from the Apollo 11 and 17 missions, as illustrated in Fig.…”

contrasting

confidence: 76%

High-titanium lunar basalts: A possible source in the allende meteorite.

Mason

1975

Geochem. J.

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contrasting

confidence: 76%

High-titanium lunar basalts: A possible source in the allende meteorite.

Mason

1975

Geochem. J.

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“…Phosphorous condensation leads to formation of schreibersite (Fe, Ni) 3 P, which is often associated with metal in meteorites. Allen & Mason (1973) and Mason & Graham (1970) find that the major hosts of Cr and P in meteorites are chromite (FeCr 2 O 4 ) and whitlockite [Ca 3 (PO 4 ) 2 ], which could appear at odds with Cr and P condensation into metal. However, formation of chromite and phosphate involves an oxidation process that takes place at lower temperatures than schreibersite formation and Cr condensation into the Fe alloy.…”

Section: Elementmentioning

confidence: 99%

“…Trace element analyses in meteoritic minerals are used as a guide to which major minerals may serve as host phases during condensation (e.g., Allen & Mason 1973;Mason & Graham 1970). However, the host minerals in meteorites may only preserve the '' final '' product of the condensation sequence, leaving aside any subsequent changes from mineral processing and alteration on the meteorite parent body after accretion of nebular condensates.…”

Section: Elementmentioning

confidence: 99%

Solar System Abundances and Condensation Temperatures of the Elements

Lodders

2003

ApJ

4,337

227

4,623

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Solar photospheric and meteoritic CI chondrite abundance determinations for all elements are summarized and the best currently available photospheric abundances are selected. The meteoritic and solar abundances of a few elements (e.g., noble gases, beryllium, boron, phosphorous, sulfur) are discussed in detail. The photospheric abundances give mass fractions of hydrogen (X ¼ 0:7491), helium (Y ¼ 0:2377), and heavy elements (Z ¼ 0:0133), leading to Z=X ¼ 0:0177, which is lower than the widely used Z=X ¼ 0:0245 from previous compilations. Recent results from standard solar models considering helium and heavy-element settling imply that photospheric abundances and mass fractions are not equal to protosolar abundances (representative of solar system abundances). Protosolar elemental and isotopic abundances are derived from photospheric abundances by considering settling effects. Derived protosolar mass fractions are X 0 ¼ 0:7110, Y 0 ¼ 0:2741, and Z 0 ¼ 0:0149. The solar system and photospheric abundance tables are used to compute self-consistent sets of condensation temperatures for all elements.

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“…In terrestrial rocks Se is known to be enriched in pyroxene (GOLES et al, 1970), and this appears to be true for meteorites (MASON, 1979;ALLEN and MASON, 1973).…”

Section: La-th-umentioning

confidence: 99%

Trace element composition of Tertiary volcanic rocks of northeast Japan.

et al. 1984

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Abundances of trace elements including rare earth elements (REE) were determined by instru mental neutron activation analysis for twenty three Tertiary volcanic rocks of northeast Japan. Posi tive correlations were confirmed in the following couples of elements: Hf-La, K-La, Th-La and Fe-Sc. Unlike Quaternary volcanic rocks, Tertiary volcanic rocks show no definite correlation between the inclination of REE patterns and the distance of sampling sites from the estimated volcanic front of the Tertiary. The presence of low alkali tholeiites with relatively flat REE patterns in the Japan Sea side suggests that Tertiary volcanism is qualitatively different from Quaternary one.

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Minor and trace elements in some meteoritic minerals

Cited by 74 publications

References 37 publications

High-titanium lunar basalts: A possible source in the allende meteorite.

High-titanium lunar basalts: A possible source in the allende meteorite.

Solar System Abundances and Condensation Temperatures of the Elements

Trace element composition of Tertiary volcanic rocks of northeast Japan.

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