Results 61 to 70 of about 10,706 (208)

First Identification of Mafic Igneous Enclaves in Miocene Lavas of Southern Tibet With Implications for Indian Continental Subduction

Geophysical Research Letters, 2018
The history of Indian continental subduction beneath Asian plate remains unclear. Miocene ultrapotassic rocks in southern Tibet, with extremely enriched isotopes, have often been used to trace mantle metasomatism and geodynamic processes associated with ...
Lu‐Lu Hao, Qiang Wang, Derek A. Wyman, Yue Qi, Lin Ma, Fang Huang, Le Zhang, Xiao Ping Xia, Quan Ou   +8 more
doaj   +1 more source

Changing Sources of Magma Generation Beneath Intra-Oceanic Islands Arcs: An Insight From the Juvenile Kohistan Island Arc, Pakistan Himalaya

, 2006
The Kohistan arc, situated in the Pakistan Himalaya, is a Cretaceous intraoceanic island arc which was initiated during the northward movement of the Indian Plate. The arc was sutured to Asia at ca. 100 Ma.
Petford, Nick; id_orcid, Treloar, Peter J., Petford, Nick, Bignold, Stella M., Bignold, Stella   +4 more
core   +1 more source

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Downes, H., Szacáks, A., Maţenco, L., Szakács, A., Mason, P.R.D., Seghedi, I., Matenco, L.C., Downes, Hilary, Pécskay, Z.   +8 more
core   +1 more source

Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics

, 2006
Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Wilson, M., Downes, Hilary
core  

Mass-dependent dynamics of terrestrial exoplanets using ab initio mineral properties [PDF]

, 2019
We present new modelling results for the internal structure and convective dynamics of large terrestrial (rocky) exoplanets. By going out to 20 Earth masses our results show that pressure and temperature can reach several Terapascal (TPa) and 10000 K ...
Mantle dynamics & theoretical geophysics, Wentzcovitch, R. M., van den Berg, A.P., Jacobs, M.H.G., Wentzcovitch, R.M., Jacobs, M. H.G., Yuen, D.A., Umemoto, K., van den Berg, A. P., Yuen, D. A.   +9 more
core   +1 more source

Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes [PDF]

, 2005
The Hawaiian Ridge and Emperor Seamount Chain define a hot spot track that provides an 80 Myr record of Hawaiian magmatism. Detroit Seamount (∼76 to 81 Ma) is one of the oldest Emperor Seamounts.
S. Huang, Frey, F., M. Regelous, F. A. Frey, Huang, S., Regelous, M., Frey, F. A., T. Thordarson, Thordarson, T.   +8 more
core   +1 more source

Petrogenesis and metallogeny of the Dongguashan Cu-Au deposit in the Tongling ore-cluster region, the Lower Yangtze River Metallogenic Belt: Constraints from geochemistry and geochronology

, 2021
The Dongguashan Cu-Au deposit located in the eastern portion of the Tongling mining district, the Lower Yangtze River Metallogenic Belt (LYRB), Eastern China is a typical one associated with the Qingshanjiao quartz monzodiorite, including porphyry, skarn,
Zhang, Jiandong, Yang, Xiaoyong, Liu, Zhongfa, Li, Huan, Yu, Zhiqiang, Liu, Lei   +5 more
core   +1 more source

Philippine Sea plate and surrounding magmatism reveal the Antarctic-Zealandia, Pacific, and Indian mantle domain boundaries

Communications Earth & Environment
Delineation of geochemically distinct domains in Earth’s mantle is essential for understanding large-scale mantle convective flow and dynamics. Previous studies identify possible long-lived (>60 million-year) mantle isotopic domains (i.e.
Shengping Qian, Jeremy Tsung-Jui Wu, Jonny Wu   +2 more
doaj   +1 more source

Compositional trends of Icelandic basalts: Implications for short–length scale lithological heterogeneity in mantle plumes

Lithological variations in the mantle source regions under mid-ocean ridges and ocean islands have been proposed to play a key role in controlling melt generation and basalt composition.
Maclennan, John, Shorttle, Oliver
core   +1 more source

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example form the Isle of Rum, NW Scotland [PDF]

, 2009
Sr and Nd isotope ratios, together with lithophile trace elements, have been measured in a representative set of igneous rocks and Lewisian gneisses from the Isle of Rum in order to unravel the petrogenesis of the felsic rocks that erupted in the early ...
C. HENRY EMELEUS, ROMAIN MEYER, Emeleus, H., Nicoll, G.R., JAN HERTOGEN, Troll, Valentin R.,, Meyer, R., Ellam, R., Emeleus, C.H., Hertogen, J., Troll, V.R., Ellam, R.M., GRAEME R. NICOLL, VALENTIN R. TROLL, ROBERT M. ELLAM   +14 more
core   +1 more source