Results 111 to 120 of about 52,439 (271)

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the Ryugu samples collected by the Hayabusa2 mission.
Ryota Fukai   +32 more
wiley   +1 more source

Photometric Analysis of Asteroids in the Phocaea Region

open access: yesThe Astronomical Journal
The Phocaea asteroid family, one of the large ancient families located in the inner main belt, may be the sources of near-Earth asteroids (NEAs) due to the nearby 3:1 mean motion resonance with Jupiter, the ν 6 secular resonance, and the Yarkovsky and ...
Xiaoyun Xu   +9 more
doaj   +1 more source

Nature's Starships II: Simulating the Synthesis of Amino Acids in Meteorite Parent Bodies

open access: yes, 2015
Carbonaceous chondrite meteorites are known for having high water and organic material contents, including amino acids. Here we address the origin of amino acids in the warm interiors of their parent bodies (planetesimals) within a few million years of ...
Cobb, Alyssa K.   +2 more
core   +1 more source

Description and modeling of the Jiddat al Harasis 091 L5 strewn field

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract With a size of 51.2 × 7.2 km, the 10.9 ± 1.7 ka old Jiddat al Harasis 091 L5 chondrite strewn field is the largest known in Oman. It consists of more than 700 meteorites with a total mass of >4.5 tons from which the largest six stones of >100 kg to 1.5 tons make up two thirds of the total mass.
Karl Wimmer   +5 more
wiley   +1 more source

The Buritizal meteorite: classification of a new Brazilian chondrite

open access: yesREM: International Engineering Journal
On August 14, 1967, the reporter Saulo Gomes, working at TV Tupi, went to a small city in the State of São Paulo called Buritizal to investigate reports of a meteorite fall and write a newspaper report.
Rogerio Nogueira Salaverry   +5 more
doaj   +1 more source

REE Geochemistry of Euphrates River, Turkey

open access: yesJournal of Chemistry, 2016
The study area is located on the Euphrates River at 38°41°32.48′′N–38°14′24.10′′N latitude and 39°56′4.59′′E–39°8°13.41′′E longitude. The Euphrates is the longest river in Western Asia. The lithological units observed from the bottom to the top are Permo-
Leyla Kalender, Gamze Aytimur
doaj   +1 more source

Antarctic Meteorite Newsletter. Volume 7, number 1: Sample requests and allocations [PDF]

open access: yes
Antarctic meteorites, achondrites, carbonaceous chondrites, ions, and stony-irons are ...

core   +1 more source

Mineralogical Characterization of Baptistina Asteroid Family: Implications for K/T Impactor Source

open access: yes, 2011
Bottke et al. (2007) linked the catastrophic formation of Baptistina Asteroid Family (BAF) to the K/T impact event. This linkage was based on dynamical and compositional evidence, which suggested the impactor had a composition similar to CM2 carbonaceous
Candal, Alvaro Alvarez   +10 more
core   +1 more source

Facies mosaic distribution and stratigraphic disorder of a mixed carbonate–siliciclastic tidal succession

open access: yesSedimentology, EarlyView.
ABSTRACT Complex stratigraphic arrangements may be generated through lateral facies transitions from the strata of aeolian depositional systems into bordering peritidal deposits. In such scenarios, sedimentary architectural complexity and associated facies heterogeneities are governed by the interplay between autogenic processes inherent to tidal ...
Victor J. P. Hême de Lacotte   +5 more
wiley   +1 more source

Particle Accretion in Microgravity. I. Particle Sizes and Bulk Densities

open access: yesThe Planetary Science Journal
The precise mechanisms related to the accretion of protoplanetesimals from dust in protoplanetary disks (PPDs) are poorly understood. In order to better understand the early stages of planet formation and the growth of millimeter–centimeter agglomerates,
Akbar D. Whizin   +3 more
doaj   +1 more source

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