Cosmogenic Radionuclides in the Kosice H5 and Chelyabinsk LL5 Chondrites and Cosmic Ray Modulation
Alexeev, V.; Laubenstein, M.; Povinec, P.; Ustinova, G.
Alexeev, V.; Laubenstein, M.; Povinec, P.; Ustinova, G.
26Al achondrite Allende aqueous alteration asteroid CAI carbonaceous carbonaceous chondrite Chelyabinsk / Челябинск chondrule chondrule formation CI CM CO comet CR CV earth enstatite chondrite H impact impact structure iron L LL lunar Mars martian meteor meteoroid moon Murchison ordinary chondrite parent body Paris planetesimal shergottite Vesta water witnessed fall
Reassessing evidence of life in 3,700-million-year-old rocks of Greenland ►
Evidence for evolved Hadean crust from Sr isotopes in apatite within Eoarchean zircon from the Acasta Gneiss Complex ►
Petrogenesis and tectonics of the Acasta Gneiss Complex derived from integrated petrology and 142Nd and 182W extinct nuclide-geochemistry ►
Earth’s oldest stable crust in the Pilbara Craton formed by cyclic gravitational overturns ►
Most Ancient Evidence for Life in the Barberton Greenstone Belt: Microbial Mats and Biofabrics of the ∼3.47 Ga Middle Marker Horizon ►
Ideas and perspectives: hydrothermally driven redistribution and sequestration of early Archaean biomass – the “hydrothermal pump hypothesis” ►
HCN production via Impact Ejecta Reentry during the Late Heavy Bombardment ►
Secondary magnetic inclusions in detrital zircons from the Jack Hills, Western Australia, and implications for the origin of the geodynamo ►
The origin of the Moon within a terrestrial synestia ►
Halogen Chemistry and Hydrogen Isotopes of Apatite from the >3.7 Ga Isua Supracrustal Belt, SW Greenland ►
Remarkably preserved tephra from the 3430 Ma Strelley Pool Formation, Western Australia: Implications for the interpretation of Precambrian microfossils ►
A 4463 Ma apparent zircon age from the Jack Hills (Western Australia) resulting from ancient Pb mobilization ►
Cluster analysis on a sphere: Application to magnetizations from metasediments of the Jack Hills, Western Australia ►
SIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions ►
Geochronology of Hadean zircon grains from the Jack Hills, Western Australia constrained by quantitative scanning ion imaging ►
Spatially-resolved isotopic study of carbon trapped in ∼3.43 Ga Strelley Pool Formation stromatolites ►
SIMS Microanalysis of the Strelley Pool Formation Cherts and the Implications for the Secular-Temporal Oxygen-isotope Trend of Cherts ►
Earth’s volatile contents established by melting and vaporization ►
Magnesium isotope evidence that accretional vapour loss shapes planetary compositions ►
Early trace of life from 3.95 Ga sedimentary rocks in Labrador, Canada ►
Impact-driven subduction on the Hadean Earth ►
Cubic zirconia in >2370 °C impact melt records Earth’s hottest crust ►
Elements of Eoarchean life trapped in mineral inclusions ►
CO2 fluid inclusions in Jack Hills zircons ►
Processes of Crust Formation in the Early Earth Imaged through Hf isotopes from the East Pilbara Terrane ►
Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits ►
Formation of Hadean granites by melting of igneous crust ►
Large and robust lenticular microorganisms on the young Earth ►
Tungsten-182 heterogeneity in modern ocean island basalts ►
Evidence for early life in Earth’s oldest hydrothermal vent precipitates ►
Earth’s first stable continents did not form by subduction ►
SHRIMP U–Pb zircon geochronology establishes that banded iron formations are not chronostratigraphic markers across Archean greenstone belts of the Pilbara Craton ►
The Hunt for Shocked Zircon in the Jack Hills: 21,000 and Counting… ►
Initiation of plate tectonics in the Hadean: Eclogitization triggered by the ABEL Bombardment ►
Highly siderophile element and 182W evidence for a partial late veneer in the source of 3.8 Ga rocks from Isua, Greenland ►
Iron and oxygen isotope fractionation during iron UV photo-oxidation: Implications for early Earth and Mars ►
Coupled zircon Lu–Hf and U–Pb isotopic analyses of the oldest terrestrial crust, the >4.03 Ga Acasta Gneiss Complex ►
Sluggish Hadean geodynamics: Evidence from coupled 146,147Sm–142,143Nd systematics in Eoarchean supracrustal rocks of the Inukjuak domain (Québec) ►
The effect of weathering on U-Th-Pb and oxygen isotope systems of ancient zircons from the Jack Hills, Western Australia ►
No evidence for Hadean continental crust within Earth’s oldest evolved rock unit ►
Rapid emergence of life shown by discovery of 3,700-million-year-old microbial structures ►
Petrology and geochemistry of mafic rocks in the Acasta Gneiss Complex: Implications for the oldest mafic rocks and their origin ►
Recovering the primary geochemistry of Jack Hills zircons through quantitative estimates of chemical alteration ►
The birth of a cratonic nucleus: lithogeochemical evolution of the 4.02–2.94 Ga Acasta Gneiss Complex ►
Preservation of Earth-forming events in the tungsten isotopic composition of modern flood basalts ►
Geochemistry and Nd isotopic characteristics of Earth’s Hadean mantle and primitive crust ►
Early Earth Differentiation Investigated Through 142Nd, 182W, and Highly Siderophile Element Abundances in Samples From Isua, Greenland ►
Excavation and Melting of the Hadean Continental Crust by Late Heavy Bombardment ►
Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon ►
Core formation and core composition from coupled geochemical and geophysical constraints ►
Pervasive remagnetization of detrital zircon host rocks in the Jack Hills, Western Australia and implications for records of the early geodynamo ►
— Comment by R. Bono et al (4 July 2016) ►
— Benjamin P. Weiss et al. (19 July) Reply to Comment by R. Bono et al (4 July 2016) ►
Copyright © 2019 karmaka.de
Powered by WordPress and Ascetica
.