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 …
Mantle sources of ocean islands basalts revealed from noble gas isotope systematics
Noble gas isotope systematics, particular those of He, have been fundamental in showing
that some ocean island basalts (OIB) were sourced from deep mantle plumes. Relationships …
that some ocean island basalts (OIB) were sourced from deep mantle plumes. Relationships …
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 …
Primordial helium entrained by the hottest mantle plumes
MG Jackson, JG Konter, TW Becker - Nature, 2017 - nature.com
Helium isotopes provide an important tool for tracing early-Earth, primordial reservoirs that
have survived in the planet's interior,,. Volcanic hotspot lavas, like those erupted at Hawaii …
have survived in the planet's interior,,. Volcanic hotspot lavas, like those erupted at Hawaii …
Domains of depleted mantle: New evidence from hafnium and neodymium isotopes
Isotope systematics of basalts provide information on the distribution of mantle components
and the length scale of mantle heterogeneity. To obtain this information, high data and …
and the length scale of mantle heterogeneity. To obtain this information, high data and …
Evidence for the survival of the oldest terrestrial mantle reservoir
Helium is a powerful tracer of primitive material in Earth's mantle. Extremely high 3He/4He
ratios in some ocean-island basalts suggest the presence of relatively undegassed and …
ratios in some ocean-island basalts suggest the presence of relatively undegassed and …
Non-chondritic Sm/Nd ratio in the terrestrial planets: consequences for the geochemical evolution of the mantle–crust system
Super-chondritic 142Nd signatures are ubiquitous in terrestrial, Martian and lunar samples,
and indicate that the terrestrial planets may have accreted from material with Sm/Nd ratio …
and indicate that the terrestrial planets may have accreted from material with Sm/Nd ratio …
Heavy δ57Fe in ocean island basalts: A non-unique signature of processes and source lithologies in the mantle
Lithological heterogeneity is a widely accepted feature of the Earth's mantle, with recycled
crustal material accounting for a significant part of heterogeneity in ocean island basalt (OIB) …
crustal material accounting for a significant part of heterogeneity in ocean island basalt (OIB) …
Geochemical characteristics and origin of the HIMU reservoir: A possible mantle plume source in the lower mantle
Combined Pb‐Sr‐Nd‐Hf‐Os isotopes, together with major and trace element compositions,
were determined from clinopyroxene and olivine phenocrysts, along with whole rocks, for …
were determined from clinopyroxene and olivine phenocrysts, along with whole rocks, for …
Propagation of a melting anomaly along the ultraslow Southwest Indian Ridge between 46° E and 52° 20′ E: interaction with the Crozet hotspot?
Regional axial depths, mantle Bouguer anomaly values, geochemical proxies for the extent
of partial melting and tomographic models along the Southwest Indian Ridge (SWIR) all …
of partial melting and tomographic models along the Southwest Indian Ridge (SWIR) all …