Journal ArticleDOI
Implications of mantle plume structure for the evolution of flood basalts
TLDR
In this article, the authors compare the physical and chemical characteristics of two flood basalt provinces (the Deccan and Karoo) with predictions of the dynamical model and conclude that the high-temperature melts associated with continental flood basalts are derived from hot, relatively uncontaminated plume-source mantle at the plume axis.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1990-07-01. It has received 1088 citations till now. The article focuses on the topics: Plume tectonics & Mantle plume.read more
Citations
More filters
Journal ArticleDOI
Mantle geochemistry: the message from oceanic volcanism
TL;DR: Basaltic volcanism'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region as mentioned in this paper.
Journal ArticleDOI
Large igneous provinces: crustal structure, dimensions, and external consequences
Millard F. Coffin,Olav Eldholm +1 more
TL;DR: In this article, the authors compile all known in situ LIPs younger than 250 Ma and analyze dimensions, crustal structures, ages, and emplacement rates of representatives of the three major LIP categories: Ontong Java and Kerguelen-Broken Ridge oceanic plateaus, North Atlantic volcanic passive margins, and Deccan and Columbia River continental flood basalts Crustal thickness ranges from 20 to 40 km, and the lower crust is characterized by high (70-76 km s?1) compressional wave velocities.
Journal ArticleDOI
Large igneous provinces and mass extinctions
TL;DR: In this paper, the authors compare the timing of mass extinctions with the formation age of large igneous provinces and reveal a close correspondence in five cases, but previous claims that all such provinces coincide with extinction events are unduly optimistic.
Journal ArticleDOI
Three distinct types of hotspots in the Earth's mantle
TL;DR: The origin of mantle hotspots is a controversial topic as mentioned in this paper, and only seven (primary) out of 49 hotspots meet criteria aimed at detecting a very deep origin (three in the Pacific, four in the Indo-Atlantic hemisphere).
Journal ArticleDOI
Temperatures in Ambient Mantle and Plumes: Constraints from Basalts, Picrites, and Komatiites
Claude Herzberg,Paul D. Asimow,Nicholas Arndt,Yaoling Niu,C. M. Lesher,J. G. Fitton,Michael J. Cheadle,Ad D. Saunders +7 more
TL;DR: In this paper, a new evaluation is made of parental magma compositions that would crystallize olivines with the maximum forsterite contents observed in lava flows, consistent with the plume model.
References
More filters
Chemical and isotopic systematics of oceanic basalt : implications for mantle composition and processes
TL;DR: In this article, trace-element data for mid-ocean ridge basalts and ocean island basalts are used to formulate chemical systematics for oceanic basalts, interpreted in terms of partial-melting conditions, variations in residual mineralogy, involvement of subducted sediment, recycling of oceanic lithosphere and processes within the low velocity zone.
Journal ArticleDOI
Chemical and isotopic systematics of oceanic basalts. Implications for Mantle Composition and Processes
Journal ArticleDOI
Magmatism at rift zones: The generation of volcanic continental margins and flood basalts
Robert S. White,Dan McKenzie +1 more
TL;DR: In this paper, the authors show that the production of magmatically active rifted margins and the effusion of flood basalts onto the adjacent continents can be explained by a simple model of rifting above a thermal anomaly in the underlying mantle.
Journal ArticleDOI
The Volume and Composition of Melt Generated by Extension of the Lithosphere
Dan McKenzie,Mike J. Bickle +1 more
Journal ArticleDOI
The Generation and Compaction of Partially Molten Rock
TL;DR: Uounu et al. as mentioned in this paper derived the equations governing the movement of the melt and the matrix of a partially molten material from the conservation of mass, momentum, and energy using expressions from the theory of mixtures.
Related Papers (5)
Magmatism at rift zones: The generation of volcanic continental margins and flood basalts
Robert S. White,Dan McKenzie +1 more