Results 31 to 40 of about 43,126 (119)
Mineralogical alteration of CM carbonaceous chondrites: A view [PDF]
, 1989 P(論文)CM carbonaceous chondrites have been considerably affected by aqueous alteration, probably on the regolith of their parent body or bodies. The aqueous alteration resulted in the alteration of anhydrous silicates, metal, and sulfides, producing a ...
Tomeoka,Kazushige +2 more
core +1 more source
Sedimentology, EarlyView.ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach +6 more
wiley +1 more source
The Elastic Properties of Carbonaceous Chondrites
, 2012 Asteroids have diverse lithologies as reflected in the range of recovered meteorites. Size distributions of clasts of asteroid 25143 Itokawa (LL-chondrite) and Tagish Lake meteorites (ungrouped C2 carbonaceous chondrite) indicate variation in ...
Ibrahim, El-Mahadia
core +1 more source
Hydrogen isotopic composition of water in CV-type carbonaceous chondrites [PDF]
, 2018 International audienceAmong the different groups of carbonaceous chondrites, variable concentrations of hydrous minerals and organic matter are observed that might be related to the time and/or place of formation of their asteroidal parent bodies ...
Marrocchi, Yves, Piani, Laurette
core +1 more source
Terra Nova, EarlyView.ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley +4 more
wiley +1 more source
Rb-sr ages of chondrules and carbonaceous chondrites [PDF]
, 1964 Rubidium-strontium and potassium-strontium isotope composition of carbonaceous chondrites and chondrules - age of carbonaceous ...
Murthy, V. R., Compston, W.
core
Opaque Assemblages in CK and CV Carbonaceous Chondrites [PDF]
, 2006 CK carbonaceous chondrites are the only group of carbonaceous chondrites that exhibit thermal metamorphism. As a result, CKs display features of metamorphism such as silicate darkening, recrystallization and shock veins.
Righter, K., Neff, K. E.
core
The origin of magnetite in carbonaceous chondrites
, 1982 Typescript (photocopy).The content and distribution of magnetite in carbonaceous chondrites is of particular interest since it is a substantial component in these, the most primitive materials surviving from solar system formation.
Hyman, Marian
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.Abstract Whether the Songduo metamorphic belt represents an in situ Paleo‐Tethyan suture within the Lhasa Terrane or far‐traveled allochthonous high‐pressure slices, and how Permian mantle activity along the North Gondwana margin relates to subsequent Tethyan evolution, remain central questions in Tibetan tectonics.
Yuan‐Bo Ma +9 more
wiley +1 more source
Origin of radiogenic 129Xe variations in carbonaceous chondrites
, 2022 International audienceCarbonaceous chondrites are pristine witnesses of the formation of the solar system. Among them, the carbon-rich Tarda and Tagish Lake meteorites are thought to have sampled very distant regions of the outer circumsolar disk (Hiroi ...
Marrocchi, Yves +2 more
core +1 more source