Results 111 to 120 of about 111,627 (352)
Abstract Refractory inclusions (RIs) in chondrites are widely used as tracers of early solar system formation conditions. In the context of sample‐return missions, a non‐destructive and non‐invasive analytical tool that can rapidly detect and characterize RIs in space samples during their early phase of study is highly needed.
Jean Charlier+4 more
wiley +1 more source
Plate Tectonics and Metamorphism: Teaching Complex Systems Using Videos and Animations
Metamorphism is a complex geologic process that is often poorly covered in introductory geology courses. This study explores the effectiveness of a video-based instructional intervention in improving student understanding of metamorphism and its ...
Siloa Willis, Robert J. Stern
doaj +1 more source
VIS‐to‐MIR reflectance and Raman spectroscopy of the CM2 NWA 12184 carbonaceous chondrite
Abstract The spectral analysis of CM meteorites can help to constrain the mineralogical composition of their parent body, the C‐type asteroids. The CM2 NWA 12184 was spectrally examined employing seven complementary techniques at different spatial resolutions, including VIS‐to‐MIR reflectance and Raman spectroscopy.
A. Galiano+15 more
wiley +1 more source
Abstract Results of microanalysis study of NWA 869 meteorite, an ordinary chondrite, where silicates, Fe‐Ni alloys, and troilite are major constituents, are reported. The presented study of microtextures in metallic and sulfide grains provides information on processes occurring from the asteroid's accretion, through the impacts until cooling.
Paulina Skirak+4 more
wiley +1 more source
Batı Anadolu'da yüzlek veren Menderes Masifi ana hatlarıyla Geç Alpin sıkışma tektoniği ile biçimlenmiş karmaşık bir tektonik iç yapı sunmaktadır. Bu kristalin kompleksin litostratigrafik istifi; 1-Pan-Afrikan temel (çekirdek serisi) ve 2-Paleozoyik ...
Osman CANDAN+7 more
doaj
Nature and origin of fluids in granulite facies metamorphism [PDF]
The various models for the nature and origin of fluids in granulite facies metamorphism were summarized. Field and petrologic evidence exists for both fluid-absent and fluid-present deep crustal metamorphism.
Newton, R. C.
core +1 more source
On the variations of the elemental composition of the P3 component in presolar diamonds [PDF]
Analysis of noble gas element variations in the P3 component of presolar diamonds indicates that a special mechanism of element fractionation is required to explain the ...
Fisenko, A. V.+4 more
core
Abstract Brachinites are a group of ultramafic achondritic meteorites thought to sample a planetesimal from the early inner solar system. They yield predominately ancient crystallization ages within 4 Ma of CAI formation, and while the formation mechanism for these samples is debated, they are widely thought to be partial melt residues from a ...
L. F. White+7 more
wiley +1 more source
Snow metamorphism: a fractal approach
Snow is a porous disordered medium consisting of air and three water phases: ice, vapour and liquid. The ice phase consists of an assemblage of grains, ice matrix, initially arranged over a random load bearing skeleton.
A. D. Frolov+7 more
core +1 more source
Reconnaissance of the contact metamorphism of the Katahdin and Squaw Mountain intrusives, Maine [PDF]
Shailer S. Philbrick
openalex +1 more source