Search Results - "Hezel, Dominik C"
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The chemical relationship between chondrules and matrix and the chondrule matrix complementarity
Published in Earth and planetary science letters (15-05-2010)“…Chondrules and matrix are the two major components of carbonaceous chondrites (CC). The Mg/Si ratios of chondrules and matrices in CV, CR, CO and CM chondrites…”
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The origin of chondrules: Constraints from matrix composition and matrix-chondrule complementarity
Published in Earth and planetary science letters (01-02-2015)“…•Matrix and chondrules in carbonaceous chondrites have complimentary chemistry.•Chondrules and matrix in carbonaceous chondrites formed from a single…”
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Tracing the oxygen isotope composition of the upper Earth’s atmosphere using cosmic spherules
Published in Nature communications (01-06-2017)“…Molten I-type cosmic spherules formed by heating, oxidation and melting of extraterrestrial Fe,Ni metal alloys. The entire oxygen in these spherules sources…”
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Sr stable isotope composition of Earth, the Moon, Mars, Vesta and meteorites
Published in Earth and planetary science letters (01-12-2010)“…High-precision stable Sr isotopic variations ( 88Sr/ 86Sr) are reported in a variety of terrestrial samples, martian and lunar meteorites, HED,…”
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Sectioning effects of porphyritic chondrules: Implications for the PP/POP/PO classification and correcting modal abundances of mineralogically zoned chondrules
Published in Meteoritics & planetary science (01-05-2020)“…Mineralogically zoned chondrules are a common chondrule type in chondrites. They consist of olivine cores, surrounded by low‐Ca pyroxene rims. By serial…”
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Formation timescales of CV chondrites from component specific Hf–W systematics
Published in Earth and planetary science letters (15-12-2015)“…Carbonaceous chondrites are an important meteorite group that closely resembles the bulk composition of the solar system. We report the first elemental and…”
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The Spatial Origin of Chondrules in Individual Chondrites: Constraints from Modeling Chondrule Mixing
Published in The Astrophysical journal (10-08-2018)“…Chondrules are a major component of chondritic meteorites and potentially populated the entire protoplanetary disk before planet formation. Chondrules provide…”
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Modal abundances of CAIs: Implications for bulk chondrite element abundances and fractionations
Published in Meteoritics & planetary science (01-11-2008)“…— Modal abundances of Ca,Al‐rich inclusions (CAIs) are poorly known and reported data scatter across large ranges. CAIs are Poisson distributed, and if only…”
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Chondritic ingredients: II. Reconstructing early solar system history via refractory lithophile trace elements in individual objects of the Leoville CV3 chondrite
Published in Meteoritics & planetary science (01-07-2018)“…We performed a LA‐ICP‐MS study of refractory lithophile trace elements in 32 individual objects selected from a single section of the reduced CV3 chondrite…”
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The conditions of chondrule formation, Part I: Closed system
Published in Geochimica et cosmochimica acta (01-08-2007)“…Mixing was an important process in the early solar nebula and is often used as an argument to explain the compositional scatter among chondrules—mm-sized, once…”
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A nebula setting as the origin for bulk chondrule Fe isotope variations in CV chondrites
Published in Earth and planetary science letters (01-08-2010)“…We combined micro computer tomography with Fe and Si isotope measurements of Mokoia, Allende and Grosnaja chondrules. Ten Mokoia chondrules contain 0.9 to 11.8…”
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The chemical composition of carbonaceous chondrites: Implications for volatile element depletion, complementarity and alteration
Published in Geochimica et cosmochimica acta (15-10-2018)“…In Earth and planetary sciences, the chemical composition of chondritic meteorites provides an essential reference to constrain the composition and…”
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The conditions of chondrule formation, Part II: Open system
Published in Geochimica et cosmochimica acta (15-01-2016)“…We studied the texture of 256 chondrules in thin sections of 16 different carbonaceous (CV, CR, CO, CM, CH) and Rumuruti chondrites. In a conservative count…”
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Origin of SiO2-rich components in ordinary chondrites
Published in Geochimica et cosmochimica acta (15-03-2006)“…Silica-rich objects are common minor components in ordinary chondrites (OC), occurring as fragments and as chondrules. Their typical paragenesis is…”
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The origin of volatile element depletion in early solar system material: Clues from Zn isotopes in chondrules
Published in Earth and planetary science letters (15-06-2017)“…Volatile lithophile elements are depleted in the different planetary materials to various degrees, but the origin of these depletions is still debated. Stable…”
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Chondrule Properties and Formation Conditions
Published in Space science reviews (01-09-2024)“…Chondrules are iconic sub-millimeter spheroids representing the most abundant high-temperature dust formed during the evolution of the circumsolar disk…”
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Redox state of the Dharwar craton root as inferred from eclogite and peridotite sourced mantle cargo, with implications for kimberlite and lamproite magma formation
Published in Contributions to mineralogy and petrology (01-12-2023)“…Despite over 400 occurrences of kimberlites and related rocks in India, mantle-derived xenoliths are known only from a few occurrences. This paucity of…”
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An unusual compound object in Yamato 793408 (H3.2‐an): The missing link between compound chondrules and macrochondrules?
Published in Meteoritics & planetary science (01-07-2020)“…We found a large (~2 mm) compound object in the primitive Yamato 793408 (H3.2‐an) chondrite. It consists mostly of microcrystalline material, similar to…”
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Young magmatism and Si‐rich melts on Mars as documented in the enriched gabbroic shergottite NWA 6963
Published in Meteoritics & planetary science (01-11-2022)“…Enriched shergottites contain interstitial Si‐rich mesostasis; however, it is unclear whether such mesostasis is formed by impact or magmatic processes. We use…”
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Fe isotope composition of bulk chondrules from Murchison (CM2): Constraints for parent body alteration, nebula processes and chondrule-matrix complementarity
Published in Earth and planetary science letters (15-05-2018)“…Chondrules are a major constituent of primitive meteorites. The formation of chondrules is one of the most elusive problems in cosmochemistry. We use Fe…”
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