Abiotic synthesis of graphitic carbons in the Eoarchean Saglek-Hebron metasedimentary rocks
Graphite in metasedimentary rocks of the Eoarchean Saglek-Hebron Gneiss Complex
(Canada) is depleted in 13C and has been interpreted as one of the oldest traces of life on …
(Canada) is depleted in 13C and has been interpreted as one of the oldest traces of life on …
Laser ablation split-stream analysis of the Sm-Nd and U-Pb isotope compositions of monazite, titanite, and apatite–Improvements, potential reference materials, and …
Continued improvements in both ICPMS (inductively-coupled plasma mass spectrometry)
and laser ablation technologies are fueling advancements in accessory mineral …
and laser ablation technologies are fueling advancements in accessory mineral …
The nature of Earth's first crust
Recycling of crust into the mantle has left only small remnants at Earth's surface of crust
produced within a billion years of Earth formation. Few, if any, of these ancient crustal rocks …
produced within a billion years of Earth formation. Few, if any, of these ancient crustal rocks …
The low primordial heavy noble gas and 244Pu-derived Xe contents of Earth's convecting mantle
Clues to unraveling the origin and history of terrestrial volatiles lie in the noble gas record of
Earth's mantle. However, the low abundance of heavy noble gases (Ar-Kr-Xe) in mantle …
Earth's mantle. However, the low abundance of heavy noble gases (Ar-Kr-Xe) in mantle …
[HTML][HTML] Temporal evolution of 142Nd signatures in SW Greenland from high precision MC-ICP-MS measurements
E Hasenstab-Dübeler, J Tusch, JE Hoffmann… - Chemical …, 2022 - Elsevier
Measurements of 142 Nd isotope signatures in Archean rocks are a powerful tool to
investigate the earliest silicate differentiation events on Earth. Here, we introduce a new …
investigate the earliest silicate differentiation events on Earth. Here, we introduce a new …
No plate tectonics necessary to explain Eoarchean rocks at Isua (Greenland)
H Rollinson - Geology, 2022 - pubs.geoscienceworld.org
Trace element and isotopic data for basalts from the Isua greenstone belt, West Greenland,
indicate that they were derived from a range of mantle reservoirs that included depleted …
indicate that they were derived from a range of mantle reservoirs that included depleted …
Residual liquid from deep magma ocean crystallization in the source of komatiites from the ICDP drill core in the Barberton Greenstone Belt
Komatiites and sedimentary rocks sampled during the International Continental Drilling
Program (BARB1-2–3-4–5) in the Barberton greenstone belt, South Africa, were analyzed …
Program (BARB1-2–3-4–5) in the Barberton greenstone belt, South Africa, were analyzed …
[HTML][HTML] On the petrogenesis of Paleoarchean continental crust: U-Pb-Hf isotope and major-trace element constraints from the Bastar Craton, India
Combined geochronological and (isotope) geochemical investigations of tonalite-
trondhjemite-granodiorite (TTG) suites, which dominate Archean cratons, provide constraints …
trondhjemite-granodiorite (TTG) suites, which dominate Archean cratons, provide constraints …
Mantle evolution of Asia inferred from Pb isotopic signatures of sources for Late Phanerozoic volcanic rocks
S Rasskazov, I Chuvashova, T Yasnygina, E Saranina - Minerals, 2020 - mdpi.com
We present a systematic study of Pb isotope ages obtained from sources of the late
Phanerozoic volcanic rocks from unstable Asia and also volcanic rocks and kimberlites from …
Phanerozoic volcanic rocks from unstable Asia and also volcanic rocks and kimberlites from …
Comparative Sm-Nd isotope behavior of accessory minerals: Reconstructing the Sm-Nd isotope evolution of early Archean rocks
Crustal growth and mantle differentiation through Earth's history are often traced using two
radiogenic isotope systems-176 Lu-176 Hf and 147 Sm-143 Nd. Unlike most post-Archean …
radiogenic isotope systems-176 Lu-176 Hf and 147 Sm-143 Nd. Unlike most post-Archean …