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 …
Chemical geodynamics insights from a machine learning approach
The radiogenic isotope heterogeneity of oceanic basalts is often assessed using 2D isotope
ratio diagrams. But because the underlying data are at least six dimensional (87Sr/86Sr …
ratio diagrams. But because the underlying data are at least six dimensional (87Sr/86Sr …
Linking intraplate volcanism to lithospheric structure and asthenospheric flow
Several of Earth's intraplate volcanic provinces are hard to reconcile with the mantle plume
hypothesis. Instead, they exhibit characteristics that are more compatible with shallower …
hypothesis. Instead, they exhibit characteristics that are more compatible with shallower …
A process-oriented approach to mantle geochemistry
A Stracke - Chemical Geology, 2021 - Elsevier
The numerous chemical and isotopic studies of oceanic basalts have shaped our perception
of mantle geochemistry over the last six decades. As partial melts of Earth's mantle, basalts …
of mantle geochemistry over the last six decades. As partial melts of Earth's mantle, basalts …
Spatial distribution and geochemical characterization of Icelandic mantle end-members: Implications for plume geometry and melting processes
We compile a new geochemical database (Icelandic Volcanic rocks Isotopic Database, IVID)
which includes previously reported 87 Sr/86 Sr, 143 Nd/144 Nd, 176 Hf/177 Hf, 206 Pb/204 …
which includes previously reported 87 Sr/86 Sr, 143 Nd/144 Nd, 176 Hf/177 Hf, 206 Pb/204 …
Reconciling petrological and isotopic mixing mechanisms in the Pitcairn mantle plume using stable Fe isotopes
Ocean-island basalts (OIB) are the products of intra-plate mantle melting above mantle
plumes. These hot, buoyant upwellings rise from the deep mantle, possibly the core-mantle …
plumes. These hot, buoyant upwellings rise from the deep mantle, possibly the core-mantle …
Olivine chemistry reveals compositional source heterogeneities within a tilted mantle plume beneath Iceland
Abstract High-Fo olivine (Fo= Mg/(Mg+ Fe) mol%) is an ideal proxy for establishing the
compositions of primary melts and their mantle sources. This has been exploited in …
compositions of primary melts and their mantle sources. This has been exploited in …
Evidence for compositionally distinct upper mantle plumelets since the early history of the Tristan-Gough hotspot
Recent studies indicate that mantle plumes, which transfer material and heat from the earth's
interior to its surface, represent multifaceted upwellings. The Tristan-Gough hotspot track …
interior to its surface, represent multifaceted upwellings. The Tristan-Gough hotspot track …
New age and geochemical data from the Walvis Ridge: The temporal and spatial diversity of South Atlantic intraplate volcanism and its possible origin
Long-lived spatial geochemical zonation of the Tristan-Gough and Discovery hotspot tracks
and temporal variations from EMI-type basement to HIMU-type late-stage volcanism at the …
and temporal variations from EMI-type basement to HIMU-type late-stage volcanism at the …