Origin of Earth’s hydrogen and carbon constrained by their core-mantle partitioning and bulk Earth abundance [PDF]
Nature CommunicationsHydrogen and carbon concentrations in the Earth’s core are yet known. Here we determined their metal/silicate partition coefficients (D) simultaneously under typical conditions of core formation and found that D H and D C diminish in the presence of ...
Yutaro Tsutsumi +6 more
doaj +2 more sources
Amino acid compositions in heated carbonaceous chondrites and their compound-specific nitrogen isotopic ratios [PDF]
Earth, Planets and Space, 2016 A novel method has been developed for compound-specific nitrogen isotope compositions with an achiral column which was previously shown to offer high precision for nitrogen isotopic analysis. We applied the method to determine the amino acid contents and
Q. H. S. Chan +4 more
openalex +2 more sources
Electrical conductivity of carbonaceous chondrites and electric heating of meteorite parent bodies [PDF]
, 1987 The electrical conductivity of samples of the Murchison and Allende carbonaceous chondrites is 4 to 6 magnitudes greater than rock forming minerals such as Olivine up to 700 C. The remarkably high electrical conductivity of these meteorites is attributed
Al Duba
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Carbon Speciation and Solubility in Silicate Melts
Geophysical Monograph Series, Page 179-194., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Natalia Solomatova +2 more
wiley +5 more sources
Distribution of Aliphatic Amines in CO, CV and CK Carbonaceous Chondrites and Relation to Mineralogy and Processing History. [PDF]
Meteorit Planet Sci, 2017 Aponte JC +4 more
europepmc +2 more sources
Isotopic evidence for primordial molecular cloud material in metal-rich carbonaceous chondrites. [PDF]
Proc Natl Acad Sci U S A, 2016 Van Kooten EM +9 more
europepmc +2 more sources
Lifetime of the Outer Solar System Nebula From Carbonaceous Chondrites [PDF]
Journal of Geophysical Research: Planets, 2022 The evolution and lifetime of protoplanetary disks (PPDs) play a central role in the formation and architecture of planetary systems. Astronomical observations suggest that PPDs evolve in two timescales, accreting onto the star for up to several million ...
C. Borlina +3 more
semanticscholar +1 more source
Hybrid Accretion of Carbonaceous Chondrites by Radial Transport across the Jupiter Barrier [PDF]
Astrophysical Journal, 2021 Understanding the origin of chondritic components and their accretion pathways is critical to unraveling the magnitude of mass transport in the protoplanetary disk, as well as the accretionary history of the terrestrial planet region and, by extension ...
Elishevah van Kooten +5 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
Possible Ribose Synthesis in Carbonaceous Planetesimals
Life, 2022 The origin of life might be sparked by the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles. The key life-building block ribose was found in carbonaceous chondrites.
Klaus Paschek +7 more
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