Earth's heterogeneous mantle: A product of convection-driven interaction between crust and mantle
A Stracke - Chemical Geology, 2012 - Elsevier
Ubiquitous heterogeneity in the Earth's mantle has been documented by numerous
chemical and isotopic analyses of oceanic basalts. Despite the ever-increasing amount of …
chemical and isotopic analyses of oceanic basalts. Despite the ever-increasing amount of …
Hotspot volcanism and highly siderophile elements
JMD Day - Chemical Geology, 2013 - Elsevier
Hotspot volcanic rocks are formed under conditions that differ from conventional plate
tectonic boundary magmatic processes and are compositionally distinct from mid-oceanic …
tectonic boundary magmatic processes and are compositionally distinct from mid-oceanic …
Formation of enriched mantle components by recycling of upper and lower continental crust
M Willbold, A Stracke - Chemical Geology, 2010 - Elsevier
The origin of enriched mantle (EM) sources remains an unsolved problem for constraining
the composition and chemical evolution of the Earth's mantle, because a wealth of different …
the composition and chemical evolution of the Earth's mantle, because a wealth of different …
Petrogenesis of strongly alkaline primitive volcanic rocks at the propagating tip of the western branch of the East African Rift
Strongly silica-undersaturated potassic lavas (kamafugites) and carbonatitic tuffs are
characteristic of the Toro-Ankole volcanic field in southwestern Uganda, forming the …
characteristic of the Toro-Ankole volcanic field in southwestern Uganda, forming the …
The smoothness and shapes of chondrite-normalized rare earth element patterns in basalts
HSC O'Neill - Journal of Petrology, 2016 - academic.oup.com
The customary practice for displaying REE abundances is to normalize them to chondritic
abundances and then to plot these normalized abundances in order of atomic number, Z …
abundances and then to plot these normalized abundances in order of atomic number, Z …
40Ar/39Ar ages and Sr–Nd–Pb–Os geochemistry of CAMP tholeiites from Western Maranhão basin (NE Brazil)
The Central Atlantic Magmatic Province (CAMP), emplaced at the Triassic–Jurassic (T–J)
boundary (~ 200Ma), is among the largest igneous provinces on Earth. The Maranhão basin …
boundary (~ 200Ma), is among the largest igneous provinces on Earth. The Maranhão basin …
The importance of mantle wedge heterogeneity to subduction zone magmatism and the origin of EM1
SJ Turner, CH Langmuir, MA Dungan… - Earth and Planetary …, 2017 - Elsevier
The composition of the convecting asthenospheric mantle that feeds the mantle wedge can
be investigated via rear-arc lavas that have minimal slab influence. This “ambient mantle …
be investigated via rear-arc lavas that have minimal slab influence. This “ambient mantle …
Volatile-rich metasomatism in Montferrier xenoliths (Southern France): Implications for the abundances of chalcophile and highly siderophile elements in the …
Despite a relatively 'uniform'fertile composition (Al2O3= 2· 19–4· 47 wt%; Fo%= 89· 2±0· 3%;
Cr# Spl= 8· 9±1· 5%), the Montferrier peridotite xenoliths show a wide range of S contents …
Cr# Spl= 8· 9±1· 5%), the Montferrier peridotite xenoliths show a wide range of S contents …
Enriched, HIMU-type peridotite and depleted recycled pyroxenite in the Canary plume: a mixed-up mantle
The Earth's mantle is chemically and isotopically heterogeneous, and a component of
recycled oceanic crust is generally suspected in the convecting mantle [Hofmann and White …
recycled oceanic crust is generally suspected in the convecting mantle [Hofmann and White …
The 2014–15 eruption and the short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity
Recurrent eruptions at very active ocean island volcanoes provide the ideal means to gain
insight on the scale of spatial variations at the mantle source and on temporal changes of …
insight on the scale of spatial variations at the mantle source and on temporal changes of …