Results 101 to 110 of about 64,884 (241)
Sulfur‐bearing serpentine in carbonaceous chondrites
Meteoritics &Planetary Science, EarlyView.Abstract A correlative multi‐technique approach, including electron microscopy and X‐ray synchrotron work, has been used to obtain both structural and compositional information of a sulfur‐bearing serpentine identified in several carbonaceous chondrites (Winchcombe CM2, Aguas Zarcas CM2, Ivuna CI, and Orgueil CI), and in Ryugu samples returned by the ...
N. Topping +14 more
wiley +1 more source
Abundances of the elements in the solar system
, 2009 A review of the abundances and condensation temperatures of the elements and their nuclides in the solar nebula and in chondritic meteorites. Abundances of the elements in some neighboring stars are also discussed.Comment: 42 pages, 11 tables, 8 figures,
A. Bouvier +128 more
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Meteoritics &Planetary Science, EarlyView.Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews +5 more
wiley +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
Seismic reflection and topography insights into Ries crater diameter and megablock zone
Meteoritics &Planetary Science, EarlyView.Abstract Most of the extensive crater‐wide geophysical studies at the Ries impact structure were made decades ago when the origin of the structure was still being debated. Although it is one of the most studied impact structures, its internal structure was not imaged in high resolution until recently.
Kaidi Karro +5 more
wiley +1 more source
A potential hidden layer of meteorites below the ice surface of Antarctica
Nature Communications, 2016 Collection data suggest the proportion of iron-based meteorites recovered from Antarctica is significantly lower than the rest of the world. Here, the authors propose a mechanism to explain this discrepancy, showing that iron meteorites heated by solar ...
G. W. Evatt +5 more
doaj +1 more source
Prebiotic Phosphorylation Reactions on the Early Earth
Challenges, 2014 Phosphorus (P) is an essential element for life. It occurs in living beings in the form of phosphate, which is ubiquitous in biochemistry, chiefly in the form of C-O-P (carbon, oxygen and phosphorus), C-P, or P-O-P linkages to form life. Within prebiotic
Maheen Gull
doaj +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract A bright fireball was seen at 4:46 a.m. CET on November 19, 2020, over Austria, and also eye witnessed in Italy and Germany. The resulting Kindberg meteorite was the fifth well‐approved meteorite fall in Austria, and all rocks represent ordinary chondrites.
Addi Bischoff +8 more
wiley +1 more source
, 2013 Radioisotopic ages for meteorites and their components provide constraints on the evolution of small bodies: timescales of accretion, thermal and aqueous metamorphism, differentiation, cooling and impact metamorphism.
Breuer, D. +4 more
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Predicted detection rates of regional-scale meteorite impacts on Mars with the InSight short-period seismometer [PDF]
, 2015 N. A. Teanby
openalex +1 more source