TY - JOUR

T1 - Plate tectonics vs. Plume tectonics interplay

T2 - Possible models and typical cases

AU - Dobretsov, N. L.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - The interplay of plume and plate tectonics is discussed with reference to well-documented late Paleozoic and Mesozoic-Cenozoic structures. The considered issues include models of lower mantle plumes; the typical case of the Hawaii plume; plate motions in the Pacific basin under the effect of plume activity and subduction processes; the role of plumes in the breakup of continents and rifting for the cases of the East African rifts and Gondwana breakup; large continental igneous provinces of Siberia and Tarim, with meimechites and kimberlites; and the formation of large granitic batholiths and related metallogeny. The study contains several points of novelty: integrated use of lower mantle seismic tomography and satellite altimetry data on gravity patterns; correlation of plume heat with plate velocities assuming that some plumes may dissolve in the asthenosphere; and correlation of rifting with compression and extension zones.

AB - The interplay of plume and plate tectonics is discussed with reference to well-documented late Paleozoic and Mesozoic-Cenozoic structures. The considered issues include models of lower mantle plumes; the typical case of the Hawaii plume; plate motions in the Pacific basin under the effect of plume activity and subduction processes; the role of plumes in the breakup of continents and rifting for the cases of the East African rifts and Gondwana breakup; large continental igneous provinces of Siberia and Tarim, with meimechites and kimberlites; and the formation of large granitic batholiths and related metallogeny. The study contains several points of novelty: integrated use of lower mantle seismic tomography and satellite altimetry data on gravity patterns; correlation of plume heat with plate velocities assuming that some plumes may dissolve in the asthenosphere; and correlation of rifting with compression and extension zones.

KW - Compression

KW - Core

KW - Extension

KW - Gravity field

KW - Lower mantle

KW - Models of lower mantle plumes

KW - Plate tectonics

KW - Plume magmatism

KW - Plume tectonics

KW - Seismic tomography

UR - http://www.scopus.com/inward/record.url?scp=85089034168&partnerID=8YFLogxK

U2 - 10.15372/RGG2020102

DO - 10.15372/RGG2020102

M3 - Article

AN - SCOPUS:85089034168

VL - 61

SP - 502

EP - 526

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 5-6

ER -