Chemical geodynamics insights from a machine learning approach

A Stracke, M Willig, F Genske… - Geochemistry …, 2022 - Wiley Online Library
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 …

Evidence for compositionally distinct upper mantle plumelets since the early history of the Tristan-Gough hotspot

S Homrighausen, K Hoernle, F Hauff, PA Hoyer… - Nature …, 2023 - nature.com
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 …

Spatial and temporal variability in Hawaiian hotspot volcanism induced by small-scale convection

MD Ballmer, G Ito, J Van Hunen, PJ Tackley - Nature Geoscience, 2011 - nature.com
Volcanism far from plate boundaries is often attributed to an underlying mantle plume,,,,,.
However, enigmatic observations of Hawaiian volcanism, such as variations in the volume of …

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 …

Reappraisal of the significance of volcanic fields

E Cañon-Tapia - Journal of volcanology and Geothermal Research, 2016 - Elsevier
Abstract “Volcanic field” is a term commonly used to loosely describe a group of volcanoes.
Often, it is implicitly assumed that the volcanoes on a volcanic field are small, monogenetic …

Dynamics and internal structure of the Hawaiian plume

CG Farnetani, AW Hofmann - Earth and Planetary Science Letters, 2010 - Elsevier
A thorough understanding of the internal structure of the Hawaiian plume conduit requires to
link geochemical observations of surface lavas to fluid dynamic simulations able to quantify …

New age and geochemical data from the Walvis Ridge: The temporal and spatial diversity of South Atlantic intraplate volcanism and its possible origin

S Homrighausen, K Hoernle, F Hauff, JA Wartho… - … et Cosmochimica Acta, 2019 - Elsevier
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 …

Two views of Hawaiian plume structure

AW Hofmann, CG Farnetani - Geochemistry, Geophysics …, 2013 - Wiley Online Library
Fundamentally contradictory interpretations of the isotopic compositions of Hawaiian basalts
persist, even among authors who agree that the Hawaiian hotspot is caused by a deep …

Do mantle plumes preserve the heterogeneous structure of their deep-mantle source?

TD Jones, DR Davies, IH Campbell, CR Wilson… - Earth and Planetary …, 2016 - Elsevier
It has been proposed that the spatial variations recorded in the geochemistry of hotspot
lavas, such as the bilateral asymmetry recorded at Hawaii, can be directly mapped as the …

How double volcanic chains sample geochemical anomalies from the lowermost mantle

CG Farnetani, AW Hofmann, C Class - Earth and Planetary Science Letters, 2012 - Elsevier
The distinct isotopic compositions of basalts from the two parallel tracks of Hawaiian
volcanoes suggest a bilateral zonation of the underlying mantle plume, with an enriched …