Results 81 to 90 of about 424,190 (218)

Brine Entrainment During Ice Shell Growth on Icy Worlds

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract The role of ocean composition in governing ice shell growth and ocean longevity on icy satellites remains poorly constrained. To address this, we develop a thermomechanical model of small to mid‐sized icy worlds that simulates ice shell growth from a saline ocean, explicitly quantifying brine entrainment through a parameterization of reactive ...
Nina Gilkyson, Christian Huber, Erica Nathan, Jacob Buffo   +3 more
wiley   +1 more source

Pyroxene equilibration temperatures in metamorphosed ordinary chondrites [PDF]

, 1993
Ordinary chondrites are divided into petrographic types based on observed mineralogical and textural properties consistent with progressive thermal metamorphism from low grade (type 3) to high (type 7).
Harvey, R. P., Bennett, M. L., Mcsween, H. Y., Jr.   +2 more
core  

The meteorite analogs of (65803) Didymos and implications for its origin

Astronomy & Astrophysics
Context. Identifying meteorite analogs of asteroids is key to understanding their origin and evolution, evaluating planetary defense, and exploring potential space resources.
Zhai Ruoyu, Xu Tianyi, Peng Liuming, Khalid Azeem, Li Siyuan, Shu Min, Wu Yunzhao   +6 more
doaj   +1 more source

Learning From Crushing Failures: Changes in Physical Properties Reveal the Mechanics of Submarine Carbonate Landslides

Basin Research, Volume 38, Issue 5, September‐October 2026.
Changes in the physical properties of calcareous ooze between intact weak layers and glide planes within the same stratigraphy provide new constraints on the deformation processes and mechanical factors that control the mobility and erosive behaviour of submarine carbonate landslides.
Yan Li, David M. Hodgson, Jeff Peakall, Nan Wu, Mike Clare   +4 more
wiley   +1 more source

Modeling Carbon Outgassing from Chondritic Planetesimals

The Planetary Science Journal
The thermochemical evolution of planetesimals is an underprobed stage of volatile delivery to terrestrial planets during their formation, and may contribute to the volatile depletion of the Earth relative to primitive chondrites.
Bo Peng, Diana Valencia
doaj   +1 more source

Provenance Constraints on Early India–Asia Collision: Evidence From the Late Cretaceous–Early Cenozoic Sulaiman–Katawaz Basin Fill

Basin Research, Volume 38, Issue 5, September‐October 2026.
Integrated detrital zircon U–Pb, Nd–Sr isotopes and thermochronology record western Indian‐margin provenance reorganisation. Late Cretaceous–Palaeocene sediment supply was Indian‐affinity; Asian‐affinity input appeared across the Palaeocene–Eocene transition (~56.5–54.7 Ma), suggesting India–Asia collision was underway, while mixed provenance persisted
Nowrad Ali, Edward R. Sobel, Anne Bernhardt, Humaad Ghani, Muhammad Sajid, Mohibullah Mohibullah, Axel Gerdes, Jessica A. Stammeier, Johannes Glodny   +8 more
wiley   +1 more source

Quantitative FT-IR Analysis for Chondritic Meteorites: Search for C_60 in Meteorites [PDF]

Journal of Astronomy and Space Sciences, 1998
Infrared absorption spectra of 9 bulk samples and 3 acid residues of meteorites were obtained in the mid-infrared region (4000 ~ 400 cm^(-1)). From the known composition of meteorites studied, the possible absorption modes were investigated.
Chunglee Kim, Jongmann Yang
doaj  

(Ultra)high‐Pressure Metamorphism in Sedimentary Versus Basaltic Rocks: Insights From a Variscan Mélange in the South Carpathians

Journal of Metamorphic Geology, Volume 44, Issue 8, Page 585-610, September 2026.
ABSTRACT Reconstructing the pressure–temperature–time (P–T–t) evolution of (ultra)high‐pressure rocks is essential for constraining subduction and collisional dynamics. Subduction zones are often investigated using basic eclogites, whereas nonbasic high‐pressure rocks remain comparatively understudied, potentially hindering a comprehensive ...
Otavio S. G. Silva, Bruno V. Ribeiro, Gavril Săbău, Fabricio Caxito, Paulo A. de Paiva‐Silva, Pierre Lanari, George Luvizotto, Mahyra Tedeschi   +7 more
wiley   +1 more source

The use of SEM/EDS method in mineralogical analysis of ordinary chondritic meteorite

Geologija, 2009
The aim of this study was to evaluate the potential of scanning electron microscopy coupled with energy dispersiveX-ray spectroscopy (SEM/EDS) for determination of mineral phases according to their stoichiometry and assessment of mineral composition of ...
Breda Mirtič, Urša Curk, Miloš Miler
doaj  

Bolide light curve systematics from 75 recovered meteorites

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2351-2392, September 2026.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens, Stuart Pilorz, Darrel Robertson, Eric C. Stern   +3 more
wiley   +1 more source