Results 21 to 30 of about 27,222 (235)

An emerging plume head interacting with the Hawaiian plume tail

The Innovation, 2023
The Hawaiian-Emperor seamount chain has shown two subparallel geographical and geochemical volcanic trends, Loa and Kea, since ∼5 Ma, for which numerous models have been proposed that usually involve a single mantle plume sampling different compositional
Lipeng Zhang, Zebin Cao, Robert E. Zartman, Congying Li, Saijun Sun, Lijun Liu, Weidong Sun   +6 more
doaj   +1 more source

Post-collisional Tertiary–Quaternary mafic alkalic magmatism in the Carpathian–Pannonian region: a review [PDF]

, 2004
Mafic alkalic volcanism was widespread in the Carpathian–Pannonian region (CPR) between 11 and 0.2 Ma. It followed the Miocene continental collision of the Alcapa and Tisia blocks with the European plate, as subduction-related calc-alkaline magmatism was
Albarede, Aldanmaz, Alexandru Szakács, Balogh, Balogh, Balogh, Balogh, Blusztajn, Campbell, Cebria, Class, Csontos, Csontos, Dobosi, Dobosi, Dobosi, Downes, Downes, Downes, Ebner, Embey-Isztin, Embey-Isztin, Embey-Isztin, Fodor, Granet, Gîrbacea, Harangi, Harangi, Harangi, Harangi, Hilary Downes, Hofmann, Horváth, Höernle, Ioan Seghedi, Jung, Kadosa Balogh, Konečny, Konečny, Mason, Mason, Maţenco, McKenzie, Orlando Vaselli, Pécskay, Pécskay, Rosenbaum, Royden, Royden, Roşu, Salters, Seghedi, Seghedi, Seghedi, Seghedi, Seghedi, Shaw, Sims, Späth, Späth, Sun, Szabó, Szabó, Szakács, Tatsumi, Thirlwall, Thirlwall, Vaselli, Wedepohl, Wilson, Wilson, Wöerner, Zindler, Zoltán Pécskay, Zou, Šimon   +75 more
core   +1 more source

Seismic evidence of the Hainan mantle plume by receiver function analysis in southern China

Geophysical Research Letters, 2016
The Lei‐Qiong region is the largest igneous province in southern China and may be a surface expression of a mantle plume beneath the region (the Hainan mantle plume).
S. Shawn Wei, Y. John Chen
doaj   +1 more source

Komatiites From Mantle Transition Zone Plumes

Frontiers in Earth Science, 2020
During the Archean, episodic volcanism commonly included both plume- and arc-type magmatism, raising the issue of a possible link between “bottom up” and “top down” geodynamic processes.
Derek Wyman
doaj   +1 more source

Extremely high He isotope ratios in MORB-source mantle from the proto-Iceland plume [PDF]

, 2003
The high ³He/⁴He ratio of volcanic rocks thought to be derived from mantle plumes is taken as evidence for the existence of a mantle reservoir that has remained largely undegassed since the Earth's accretion.
AD Saunders, AK Pedersen, B Marty, B Marty, BB Hanan, BS Hardarson, D Anderson, D Francis, D Porcelli, D Porcelli, DJ DePaolo, DM McKenzie, DR Hilton, DR Hilton, DW Graham, EH Hauri, ET Dixon, Finlay M. Stuart, FM Stuart, FM Stuart, I Robillard, J. Godfrey Fitton, JG Fitton, JG Fitton, JM Eiler, M Honda, MD Kurz, MD Kurz, MJ Whitehouse, RD van der Hilst, Robert M. Ellam, Solveigh Lass-Evans, T Prestvik, V Olive   +33 more
core   +2 more sources

Fingerprinting secondary mantle plumes [PDF]

Earth and Planetary Science Letters, 2022
Many vertical seismic velocity anomalies observed below different parts of the Eurasian plate are rooted in the transition zone between the upper and lower mantle (410–660 km), forming so-called secondary plumes. These anomalies are interpreted as the result of thermal effects of large-scale thermal upwelling (primary plume) in the lower mantle or deep
Sierd Cloetingh, Alexander Koptev, Alessio Lavecchia, István János Kovács, Fred Beekman   +4 more
openaire   +4 more sources

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites [PDF]

, 2004
Sr-Nd-Os-O isotope and major and trace element data from ~62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Eiler, J., Francis, D., Frei, R., Kent, A. J. R., Stolper, E. M., Woodhead, J.   +5 more
core   +1 more source

Trace element and Sr-Nd-Pb isotope geochemistry of Rungwe Volcanic Province, Tanzania: Implications for a superplume source for East Africa Rift magmatism

Frontiers in Earth Science, 2014
The recently discovered high, plume-like 3He/4He ratios at Rungwe Volcanic Province (RVP) in southern Tanzania, similar to those at the Main Ethiopian Rift in Ethiopia, strongly suggest that magmatism associated with continental rifting along the entire ...
Paterno R Castillo, David R Hilton, Sæmundur A Halldórsson, Sæmundur A Halldórsson   +3 more
doaj   +1 more source

Mantle plume migration ?

, 2021
The file is CCP stacking results of receiver function in northeast China. NE1.tar.gz and NE2.tar.gz are raw data used in this study.
openaire   +1 more source

East African topography and volcanism explained by a single, migrating plume [PDF]

, 2020
Anomalous topographic swells and Cenozoic volcanism in east Africa have been associated with mantle plumes. Several models involving one or more fixed plumes beneath the northeastward migrating African plate have been suggested to explain the space-time ...
Gurnis, Michael, Hassan, Rakib, Müller, Dietmar, Williams, Simon E.   +3 more
core   +1 more source