Results 221 to 230 of about 274,135 (269)
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2014
Magma generated by decompression melting of the upwelling mantle beneath mid-ocean ridges (MORs) rises buoyantly and accumulates in crustal magma chambers (e.g., Forsyth, 1992). The long-held view is that oceanic crust is built from in situ crystallization of melts in these reservoirs, as well as from melts extracted from the magma chamber(s) in the ...
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Magma generated by decompression melting of the upwelling mantle beneath mid-ocean ridges (MORs) rises buoyantly and accumulates in crustal magma chambers (e.g., Forsyth, 1992). The long-held view is that oceanic crust is built from in situ crystallization of melts in these reservoirs, as well as from melts extracted from the magma chamber(s) in the ...
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1991
The Pacific Ocean basin comprises about one third of the earth’s surface, or 49.8% by area of our planet’s oceans and seas. It includes the earth’s largest and fastest moving plate, the Pacific plate, in addition to the smaller Nazca, Cocos, Rivera, Juan de Fuca, Gorda and Explorer plates, three so-called microplates (Galapagos, Easter and Juan ...
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The Pacific Ocean basin comprises about one third of the earth’s surface, or 49.8% by area of our planet’s oceans and seas. It includes the earth’s largest and fastest moving plate, the Pacific plate, in addition to the smaller Nazca, Cocos, Rivera, Juan de Fuca, Gorda and Explorer plates, three so-called microplates (Galapagos, Easter and Juan ...
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1989
Significant differences between ophiolites (table 8.1) led us to distinguish a harzburgite ophiolite type (HOT) and a lherzolite ophiolite type (LOT) which were ascribed respectively to fast and slow spreading situations (chapter 8). Similarly, significant differences between fast and slow spreading ridges encourage comparisons with these two types of ...
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Significant differences between ophiolites (table 8.1) led us to distinguish a harzburgite ophiolite type (HOT) and a lherzolite ophiolite type (LOT) which were ascribed respectively to fast and slow spreading situations (chapter 8). Similarly, significant differences between fast and slow spreading ridges encourage comparisons with these two types of ...
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New Model for the Structure of the Ocean Crust
Nature, 1970USING the ocean floor spreading/plate tectonics theory as a starting point, examining the implications of this theory for processes taking place at mid-ocean ridge crests, and adding data collected from dredged rocks and geophysical measurements in the oceans, it is possible to build up a well controlled model of the structure of the ocean crust and ...
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Eclogites in the oceanic crust
1994In: Compagnoni R. e Messiga B. (eds.), Guide-book to the field excursion B1 "High pressure metamorphism in the Western Alps".
SCAMBELLURI, MARCO, RAMPONE, ELISABETTA
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1988
The Nd isotopic data provide an important addition to petrogenetic modeling studies of igneous rocks because they provide previously unavailable information about the chemical composition of magma sources. Oceanic basalts present the possibility of applying the isotopic data for this purpose in a relatively straightforward way because there is little ...
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The Nd isotopic data provide an important addition to petrogenetic modeling studies of igneous rocks because they provide previously unavailable information about the chemical composition of magma sources. Oceanic basalts present the possibility of applying the isotopic data for this purpose in a relatively straightforward way because there is little ...
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