Earth’s water may have been inherited from material similar to enstatite chondrite meteorites
Science, 2020 An unexpected source of Earth's water The abundances of Earth's chemical elements and their isotopic ratios can indicate which materials formed Earth. Enstatite chondrite (EC) meteorites provide a good isotopic match for many elements but are expected to
L. Piani +5 more
semanticscholar +1 more source
Thermal history modelling of the L chondrite parent body [PDF]
Astronomy & Astrophysics, 2019 Context.The cooling history of individual meteorites can be reconstructed if closure temperatures and closure ages of different radioisotopic chronometers are available for a couple of meteorites.
H. Gail, M. Trieloff
semanticscholar +1 more source
Testing models for the compositions of chondrites and their components: I. CO chondrites
Geochimica et Cosmochimica Acta, 2021 Abstract We present the first results of a comprehensive investigation aimed at testing the hypothesis of chondrule-matrix complementarity and the four-component model for the compositions of the carbonaceous chondrites and their components. Combining point-counting with electron microprobe analyses, we have determined the bulk compositions of thin ...
Andrea Patzer +2 more
openaire +3 more sources
Meteoritics and Planetary Science, 2020 CM chondrites are complex impact (mostly regolith) breccias, in which lithic clasts show various degrees of aqueous alteration. Here, we investigated the degree of alteration of individual clasts within 19 different CM chondrites and CM‐like clasts in ...
S. Lentfort +3 more
semanticscholar +1 more source
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +2 more sources
Parauapebas meteorite from Pará, Brazil, a “hammer” breccia chondrite
Brazilian Journal of Geology, 2020 The Parauapebas meteorite, third official meteorite discovered in the Brazilian Amazon region, is a “hammer meteorite” which fell on December 9th, 2013, in the city of Parauapebas, Pará State, Brazil.
Daniel Atencio +5 more
doaj +1 more source
Stellar Outbursts and Chondrite Composition
The Astrophysical Journal, 2023 The temperatures of observed protoplanetary disks are not sufficiently high to produce the accretion rate needed to form stars, nor are they sufficient to explain the volatile depletion patterns in CM, CO, and CV chondrites and terrestrial planets.
Min Li +5 more
doaj +1 more source
The breakup of the L-chondrite parent body 466 Ma and its terrestrial effects – a search for a mid-Ordovician biodiversity event [PDF]
Estonian Journal of Earth Sciences, 2023 About a third of all meteorites that fall on Earth today, the stony L-chondrites, originate from a major breakup event in the asteroid belt 466 Ma, in the early Darriwilian.
Birger Schmitz, Fredrik Terfelt
doaj +1 more source
, 2023 Data for Shijia sandstone, granites from Qinling Orogenic Belt, UCC, and chondrite are from [51–54].
Heiner Heggemann (15361064) +5 more
core +1 more source
Abundant extraterrestrial amino acids in the primitive CM carbonaceous chondrite Asuka 12236
Meteoritics and Planetary Science, 2020 The Asuka (A)‐12236 meteorite has recently been classified as a CM carbonaceous chondrite of petrologic type 3.0/2.9 and is among the most primitive CM meteorites studied to date.
D. Glavin +10 more
semanticscholar +1 more source