Bischoff, Addi, Horstmann, Marian, Barrat, Jean-Alix ORCID: 0000-0003-3158-3109, Chaussidon, Marc, Pack, Andreas, Herwartz, Daniel ORCID: 0000-0003-3604-8295, Ward, Dustin, Vollmer, Christian and Decker, Stephan (2014). Trachyandesitic volcanism in the early Solar System. Proc. Natl. Acad. Sci. U. S. A., 111 (35). S. 12689 - 12693. WASHINGTON: NATL ACAD SCIENCES. ISSN 0027-8424

Full text not available from this repository.

Abstract

Volcanism is a substantial process during crustal growth on planetary bodies and well documented to have occurred in the early Solar System from the recognition of numerous basaltic meteorites. Considering the ureilite parent body (UPB), the compositions of magmas that formed a potential UPB crust and were complementary to the ultramafic ureilite mantle rocks are poorly constrained. Among the Almahata Sitta meteorites, a unique trachyandesite lava (with an oxygen isotope composition identical to that of common ureilites) documents the presence of volatile-and SiO2-rich magmas on the UPB. The magma was extracted at low degrees of disequilibrium partial melting of the UPB mantle. This trachyandesite extends the range of known ancient volcanic, crust-forming rocks and documents that volcanic rocks, similar in composition to trachyandesites on Earth, also formed on small planetary bodies similar to 4.56 billion years ago. It also extends the volcanic activity on the UPB by similar to 1 million years (Ma) and thus constrains the time of disruption of the body to later than 6.5 Ma after the formation of Ca-Al-rich inclusions.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Bischoff, AddiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Horstmann, MarianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barrat, Jean-AlixUNSPECIFIEDorcid.org/0000-0003-3158-3109UNSPECIFIED
Chaussidon, MarcUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pack, AndreasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herwartz, DanielUNSPECIFIEDorcid.org/0000-0003-3604-8295UNSPECIFIED
Ward, DustinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vollmer, ChristianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Decker, StephanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-429018
DOI: 10.1073/pnas.1404799111
Journal or Publication Title: Proc. Natl. Acad. Sci. U. S. A.
Volume: 111
Number: 35
Page Range: S. 12689 - 12693
Date: 2014
Publisher: NATL ACAD SCIENCES
Place of Publication: WASHINGTON
ISSN: 0027-8424
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
UREILITE PARENT BODY; OXYGEN-ISOTOPE COMPOSITION; POLYMICT UREILITE; ALMAHATA SITTA; METEORITES; MELT; PETROLOGY; ACHONDRITES; MINERALOGY; EVOLUTIONMultiple languages
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/42901

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item