Results 71 to 80 of about 32,577 (247)

Protracted Timescales for Nebular Processing of First-formed Solids in the Solar System

The Astrophysical Journal, 2023
The calcium–aluminum-rich inclusions (CAIs) from chondritic meteorites are the first solids formed in the solar system. Rim formation around CAIs marks a time period in early solar system history when CAIs existed as free-floating objects and had not yet
Prajkta Mane, Maitrayee Bose, Meenakshi Wadhwa, Céline Defouilloy   +3 more
doaj   +1 more source

Reduced and unstratified crust in CV chondrite parent body

Nature Communications, 2017
Meteorites may unlock the history of the early solar system. Here, the authors find, through Ca-Fe-rich secondary phases, that the distinction between reduced and oxidized CV chondrites is invalid; therefore, CV3 chondrites are asteroid fragments that ...
Clément Ganino, Guy Libourel
doaj   +1 more source

Looking for the origin of life in cosmochemistry: Asteroids and their carbon-rich meteorites

Mètode Science Studies Journal: Annual Review, 2016
Carbonaceous chondrite meteorites are carbon-containing fragments of primitive asteroids that have offered the only samples available to date giving insights into chemical evolution in laboratory analyses.
Sandra Pizzarello
doaj   +1 more source

Redistribution of Sr and rare earth elements in the matrices of CV3 carbonaceous chondrites during aqueous alteration in their parent body

Earth, Planets and Space, 2018
We measured the abundances of Sr and rare earth elements (REEs) in the matrices of five CV3 carbonaceous chondrites: Meteorite Hills (MET) 00430, MET 01070, La Paz ice field (LAP) 02206, Asuka (A) 881317 and Roberts Massif (RBT) 04143.
Kaori Jogo, Motoo Ito, Tomoki Nakamura, Sachio Kobayashi, Jong Ik Lee   +4 more
doaj   +1 more source

Low delta-V near-Earth asteroids: A survey of suitable targets for space missions

, 2014
In the last decades Near-Earth Objects (NEOs) have become very important targets to study, since they can give us clues to the formation, evolution and composition of the Solar System.
Barucci, M. A., Bernardi, F., Brucato, J. R., De Luise, F., Dotto, E., Fornasier, S., Ieva, S., Perna, D., Perozzi, E., Rossi, A.   +9 more
core   +2 more sources

Testing the Bus–DeMeo Asteroid Taxonomy Using Meteorite Spectra

The Planetary Science Journal
The most widely used method to spectrally classify asteroids is the Bus–DeMeo taxonomy. To test how well the Bus–DeMeo taxonomy groups asteroids on the basis of their mineralogy, we have classified ∼1500 meteorite spectra using this Bus–DeMeo system ...
Thomas H. Burbine, Iman Khanani, Deepika Kumawat, Ahlay Hussain, Sydney M. Wallace, M. Darby Dyar   +5 more
doaj   +1 more source

Sound Velocities of FeO‐Bearing Ringwoodite and Majorite: Implication for Martian Mantle Seismic Profiles

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Compressional and shear wave velocities (Vp, Vs) of candidate Martian deep‐mantle minerals, FeO‐rich ringwoodite ((Mg0.66Fe0.34)2SiO4) and majorite (Mg0.75Fe0.10Al0.26Ca0.07Si0.84O3), were measured up to 25 GPa and 700 K using Brillouin light scattering coupled with externally‐heated diamond anvil cells.
Luo Li, Takayuki Ishii, Young Jay Ryu, Dongzhou Zhang, Stella Chariton, Vitali B. Prakapenka, Jung‐Fu Lin   +6 more
wiley   +1 more source

Sedimentary records of palaeohydrological variability during the Late Holocene in the Lower Narmada Basin, western India

The Depositional Record, Volume 12, Issue 1, February 2026.
Late Holocene palaeohydrological changes in the lower Narmada Basin, India, revealed using multiproxy analyses of the Orsang River terrace sediments. Distinct depositional phases corresponding to global climatic events were recorded. High‐magnitude floods in the Narmada River during the MWP, and within the tributary Orsang River during DACP and LIA ...
Alpa Sridhar, Pooja Tiwari, Biswajit Thakur, Deependra Singh, Vineet Goswami, Sanjit Kumar Jena, Ravi Bhushan, Saremulhaq Parwej Mosarraf Shaikh, Deepak Maurya, Laxman Singh Chamyal   +9 more
wiley   +1 more source

Density of Sodium Aluminosilicate Melts Along the NaAlSiO4‐NaAlSi3O8 Join at High Pressure: In‐Situ Measurements and Re‐Calibration of a Modified Hard‐Sphere Equation of State For Silicate Melts

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Silicate melts play a crucial role in planetary differentiation. The density contrast between silicate melts and the surrounding solid residue exerts a primary control on many magmatic processes. However, direct measurements of the density of silicate melts at high pressure (P) and temperature (T) conditions remain challenging, particularly ...
Man Xu, Zhicheng Jing, James A. Van Orman, Qingyang Hu, Qi Chen, Tony Yu, Yanbin Wang   +6 more
wiley   +1 more source

A Mineralogical Context for the Organic Matter in the Paris Meteorite Determined by A Multi-Technique Analysis

Life, 2019
This study is a multi-technique investigation of the Paris carbonaceous chondrite directly applied on two selected 500 × 500 µm² areas of a millimetric fragment, without any chemical extraction.
Manale Noun, Donia Baklouti, Rosario Brunetto, Ferenc Borondics, Thomas Calligaro, Zélia Dionnet, Louis Le Sergeant d’Hendecourt, Bilal Nsouli, Isabelle Ribaud, Mohamad Roumie, Serge Della-Negra   +10 more
doaj   +1 more source