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Mantle plumes and their role in Earth processes
The existence of mantle plumes was first proposed in the 1970s to explain intra-plate,
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
Earth's mantle composition revealed by mantle plumes
Mantle plumes originate at depths near the core− mantle boundary (~ 2,800 km). As such,
they provide invaluable information about the composition of the deep mantle and insight …
they provide invaluable information about the composition of the deep mantle and insight …
Making the Moon from a fast-spinning Earth: A giant impact followed by resonant despinning
A common origin for the Moon and Earth is required by their identical isotopic composition.
However, simulations of the current giant impact hypothesis for Moon formation find that …
However, simulations of the current giant impact hypothesis for Moon formation find that …
Diamonds and the geology of mantle carbon
Earth's carbon, derived from planetesimals in the 1 AU region during accretion of the Solar
System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after …
System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after …
The evolving chronology of moon formation
Defining the age of the Moon has proven to be an elusive task because it requires reliably
dating lunar samples using radiometric isotopic systems that record fractionation of parent …
dating lunar samples using radiometric isotopic systems that record fractionation of parent …
Tungsten-182 heterogeneity in modern ocean island basalts
New tungsten isotope data for modern ocean island basalts (OIB) from Hawaii, Samoa, and
Iceland reveal variable 182W/184W, ranging from that of the ambient upper mantle to ratios …
Iceland reveal variable 182W/184W, ranging from that of the ambient upper mantle to ratios …
[HTML][HTML] A planet in transition: The onset of plate tectonics on Earth between 3 and 2 Ga?
Many geological and geochemical changes are recorded on Earth between 3 and 2 Ga.
Among the more important of these are the following:(1) increasing proportion of basalts with …
Among the more important of these are the following:(1) increasing proportion of basalts with …
Evidence of enriched, Hadean mantle reservoir from 4.2-4.0 Ga zircon xenocrysts from Paleoarchean TTGs of the Singhbhum Craton, Eastern India
Abstract Sensitive High-Resolution Ion Microprobe (SHRIMP) U-Pb analyses of zircons from
Paleoarchean (~ 3.4 Ga) tonalite-gneiss called the Older Metamorphic Tonalitic Gneiss …
Paleoarchean (~ 3.4 Ga) tonalite-gneiss called the Older Metamorphic Tonalitic Gneiss …
Anomalous 182W in high 3He/4He ocean island basalts: fingerprints of Earth's core?
Abstract The short-lived 182 Hf-182 W isotope system (t 1/2= 9 Ma) left evidence in both
ancient and modern terrestrial rock record of processes that took place during the earliest …
ancient and modern terrestrial rock record of processes that took place during the earliest …
The evolving nature of terrestrial crust from the Hadean, through the Archaean, into the Proterozoic
An outstanding feature of the Archaean Eon is that it was a time of major production and
preservation of continental lithosphere. Here I review the geological, geochemical and basic …
preservation of continental lithosphere. Here I review the geological, geochemical and basic …