Results 131 to 140 of about 69,839 (285)

Volatile Element Depletion of Carbonaceous Chondrites—Insights from Mass-dependent Zinc, Cadmium, and Tellurium Isotope Variations

open access: yesThe Astrophysical Journal
The origin of volatile depletion in the solar system remains a topic of intense debate. To further inform our understanding of the mechanisms involved, this study characterized the mass-dependent Zn, Cd, and Te isotope compositions and concentrations of ...
Elin M. Morton   +8 more
doaj   +1 more source

Al-Mg systematics of hibonite-bearing Ca,Al-rich inclusions from Ningqiang [PDF]

open access: yes, 2011
Hibonite-bearing Ca,Al-rich inclusions (CAIs) usually occur in CM and CH chondrites and possess petrographic and isotopic characteristics distinctive from other typical CAIs.
Guan, Yunbin, Hsu, Weibiao, Wang, Ying
core  

The Polonnaruwa meteorite: oxygen isotope, crystalline and biological composition

open access: yes, 2013
Results of X-Ray Diffraction (XRD) analysis, Triple Oxygen Isotope analysis and Scanning Electron Microscopic (SEM) studies are presented for stone fragments recovered from the North Central Province of Sri Lanka following a witnessed fireball event on ...
Gibson, Carl H.   +9 more
core  

Fragmentation-limited Dust Filtration in 2D Simulations of Planet–Disk Systems with Dust Coagulation: Parameter Study and Implications for the Inner Disk’s Dust Mass Budget and Composition

open access: yesThe Astrophysical Journal
Superthermal gas giant planets or their progenitor cores are known to open deep gaps in protoplanetary disks, which stop large, drifting dust particles on their way to the inner disk.
Thomas Pfeil   +2 more
doaj   +1 more source

Evolution of carbonaceous chondrite parent bodies: Insights into cometary nuclei [PDF]

open access: yes
It is thought that cometary samples will comprise the most primitive materials that are able to be sampled. Although parent body alteration of such samples would not necessarily detract from scientists' interest in them, the possibility exists that ...
Mcsween, Harry Y., Jr.
core   +1 more source

Abundances of trace elements Na, Sc, Cr, Mn, Fe, Co, and Cu in chondrules and meteorites in IN meteorites and terrestrial matter and U in type I carbonaceous chondrites Quarterly progress report, 1 Mar. - 15 Jun. 1966 [PDF]

open access: yes
Abundances of sodium, scandium, chromium, iron, manganese, cobalt, copper, indium, and uranium in chondrules, chondrites, and meteorites determined by neutron activation ...
Schmitt, R. A.
core   +1 more source

Forming the Noncarbonaceous Chondrite Parent Bodies in the Presence of the Jupiter Barrier

open access: yesThe Astrophysical Journal
Meteorites can be divided into two groups—noncarbonaceous chondrite like (NC) and carbonaceous chondrite like (CC)—with distinct stable-isotope compositions. Parent bodies of NC and CC meteorites have overlapping formation ages. This suggests they formed
John Chambers
doaj   +1 more source

Molecular Identification of the Deuterium-Rich Carrier in Insoluble Organic Matter in Carbonaceous Chondrites

open access: green, 2007
Laurent Rémusat   +7 more
openalex   +2 more sources

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