Results 51 to 60 of about 19,575 (244)
A geophysical investigation of the Roter Kamm impact crater, Namibia
Meteoritics &Planetary Science, EarlyView.Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus +6 more
wiley +1 more source
The Planetary Science Journal, 2023 Remote spectral characterization of near-Earth asteroids (NEAs) relies on laboratory spectral calibration to constrain their surface composition, including mineral chemistry and relative mineral abundances.
Bryn Bowen +10 more
doaj +1 more source
Nature's Starships II: Simulating the Synthesis of Amino Acids in Meteorite Parent Bodies
, 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
Meteoritics &Planetary Science, EarlyView.Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia +2 more
wiley +1 more source
The Fountain Hills meteorite: A new CBa chondrite from Arizona [PDF]
, 2004 We describe a new member of the CR chondrite clan and compare it to other members of this ...
Franchi, I.A. +4 more
core
Small‐scale elemental abundance variations in Ryugu particles from touchdown 1
Meteoritics &Planetary Science, EarlyView.Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García +6 more
wiley +1 more source
REVISED RARE EARTH ELEMENTS COMPOSITION OF MOCS METEORITE USING HR-ICP-MS AND ICP-QMS ANALYSIS
Studia Universitatis Babes-Bolyai Chemia, 2016 Rare earth elements composition of Mocs meteorite was analyzed using two inductively coupled plasma mass spectrometry methods: a quadrupole and a single-detector sector-field high-resolution instrument.
Claudiu TANASELIA +4 more
doaj
Iron Isotope Constraints on the Structure of the Early Solar System
The Astrophysical Journal Letters, 2023 The recent advent of nontraditional isotopic systems has revealed that meteorites display a fundamental isotopic dichotomy between noncarbonaceous (NC) and carbonaceous (C) groups, which represent material from the inner and outer solar system ...
Yves Marrocchi +2 more
doaj +1 more source
Hydrogen isotopic composition of the Tagish Lake meteorite: comparison with other carbonaceous chondrites [PDF]
, 2001 A study into the hydrogen isotopic characteristics of whole rock samples of carbonaceous chondrites and their comparison with a whole rock sample of the Tagish Lake ...
Franchi, I. A. +3 more
core
Spectral properties of the largest asteroids associated with Taurid Complex [PDF]
, 2014 We obtained spectra of six of the largest asteroids (2201, 4183, 4486, 5143, 6063, and 269690) associated with Taurid complex. The observations were made with the IRTF telescope equipped with the spectro-imager SpeX.
Birlan, M. +4 more
core +2 more sources