Results 71 to 80 of about 517 (188)
Meteoritics &Planetary Science, Volume 61, Issue 4, Page 720-738, April 2026.Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley +2 more
wiley +1 more source
Puffy Venuses: The Mass–Radius Impact of Carbon-rich Atmospheres on Lava Worlds
The Astrophysical JournalThe recent advancements in exoplanet observations enable the potential detection of exo-Venuses, rocky planets with carbon-rich atmospheres. How extended these atmospheres can be, given high carbon abundances, has not been studied.
Bo Peng, Diana Valencia
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The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)
Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti +5 more
wiley +1 more source
Terra Nova, Volume 38, Issue 2, Page 97-105, April 2026.ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito +4 more
wiley +1 more source
Classification of stony meteorites and chondrules – the case of meteorite Jesenice
Geologija, 2012 In the first part of the paper there is a description about genesis of meteorites, in particularly about stony meteorites– chondrites, since meteorite Jesenice is an ordinary L chondrite. Chondrules represent main part of the mass ofchondritic meteorites.
Bojan Ambrožič +3 more
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The dependence of asteroid rotation on composition
Astronomy & AstrophysicsContext. The rotational properties of asteroids provide critical information about not only their internal structure, but also their collisional and thermal histories.
Dyer T. J. +6 more
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Chromites in ordinary chondrite fusion crusts
, 2021 Meteorites are several orders of magnitude older than homo sapiens – or any other homo genus, for that matter. Their origin dates back to the formation of the solar system (4.56 billion years ago), whereas our species traces its roots back to two hundred thousand years in the past.
openaire +1 more source
The Planetary Science JournalThe near-Earth asteroid (98943) Torifune, previously designated 2001 CC _21 , is the flyby target of the Hayabusa2 extended mission, nicknamed Hayabusa2 # (Small Hazardous Asteroid Reconnaissance Probe (SHARP)).
Marcel M. Popescu +13 more
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Spectroscopy of the Hamburg Meteorite, Michigan H4
The Planetary Science JournalSpectroscopic studies of the Hamburg (Michigan H4) meteorite using visible–near-infrared (VNIR), mid-infrared (MIR), Raman, and Mössbauer data reproduce the results of more conventional laboratory measurements of petrology and geochemistry.
M. Darby Dyar +12 more
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Trace element composition of silicate minerals from Kunashak Meteorite (L6)
Записки Горного институтаMajor (EPMA) and trace (SIMS) element geochemistry in the silicate minerals (olivine, pyroxene and plagioclase) of Kunashak equilibrated ordinary chondrite (L6) is described. No variations in the major element concentrations of the silicate minerals have
Kristina G. Sukhanova, Olga L. Galankina
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