Results 221 to 230 of about 2,125,195 (285)
Some of the next articles are maybe not open access.
, 2017
We investigate a low‐strain outcrop of the lower crust, the Pembroke Granulite, exposed in northern Fiordland, New Zealand, which exhibits localized partial melting.
C. Stuart, N. Daczko, S. Piazolo
semanticscholar +1 more source
We investigate a low‐strain outcrop of the lower crust, the Pembroke Granulite, exposed in northern Fiordland, New Zealand, which exhibits localized partial melting.
C. Stuart, N. Daczko, S. Piazolo
semanticscholar +1 more source
The influence of partial melting and melt migration on the rheology of the continental crust
Journal of Geodynamics, 2016Abstract The presence of melt during deformation produces a drastic change in the rheological behavior of the continental crust; rock strength is decreased even for melt fractions as low as ∼7%. At pressure/temperature conditions typical of the middle to lower crust, melt-bearing systems may play a critical role in the process of strain localization ...
Geane Carolina G. Cavalcante +3 more
openaire +2 more sources
, 2016
Late Ordovician (ca. 451 Ma) calc-alkaline adakitic granodiorite and granite, associated with coeval S-type granites, were discovered in the Central Tianshan block, NW China.
Xiaoran Zhang +9 more
semanticscholar +1 more source
Late Ordovician (ca. 451 Ma) calc-alkaline adakitic granodiorite and granite, associated with coeval S-type granites, were discovered in the Central Tianshan block, NW China.
Xiaoran Zhang +9 more
semanticscholar +1 more source
Partial melting of crustal rocks
Engineering Geology, 1989Abstract Shales and graywackes were first metamorphosed at 650°C and then partially melted at 700 and 750°C at 2, 4, 6, and 8 kilobars in the presence of 0.75m NaCl−0.45m KCl and 0.225m CaCl2−0.750m NaCl solutions. In experiments with shales,KK+Na ratio in the decreases with increasing pressure at 650 and 700°C; however, at 750°C this ratio is equal ...
openaire +2 more sources
Partial melting of metagreywackes, Part II. Compositions of minerals and melts
Contributions to Mineralogy and Petrology, 1997A series of experiments on the fluid-absent melting of a quartz-rich aluminous metagreywacke has been carried out. In this paper, we report the chemical composition of the phases present in the experimental charges as determined by electron microprobe.
Jean-Marc Montel, Daniel Vielzeuf
openaire +2 more sources
, 2016
Deciphering the petrogenesis of andesitic/dioritic rocks is fundamental to understanding the formation of the continental crust. Here we present detailed petrology, geochronology, major and trace element, Sr–Nd–Hf–O isotope data for the Early Cretaceous (
Lu‐Lu Hao +8 more
semanticscholar +1 more source
Deciphering the petrogenesis of andesitic/dioritic rocks is fundamental to understanding the formation of the continental crust. Here we present detailed petrology, geochronology, major and trace element, Sr–Nd–Hf–O isotope data for the Early Cretaceous (
Lu‐Lu Hao +8 more
semanticscholar +1 more source
, 2016
Partial melting plays an important role in the geodynamics of continental subduction zones. This is identified from a suite of ultrahigh-pressure (UHP) migmatites in the Sulu orogen through a combined study of zircon U-Pb ages, trace elements, and oxygen
Wan-Cai Li +4 more
semanticscholar +1 more source
Partial melting plays an important role in the geodynamics of continental subduction zones. This is identified from a suite of ultrahigh-pressure (UHP) migmatites in the Sulu orogen through a combined study of zircon U-Pb ages, trace elements, and oxygen
Wan-Cai Li +4 more
semanticscholar +1 more source
Criteria for the recognition of partial melting
Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, 1999Abstract Partial melting changes rocks from single phase (solid) to two phase (solid+melt) systems. The bulk viscosity decreases as the melt fraction increases and this effect raises the rate of deformation and heat transfer, as well as causing crustal differentiation.
openaire +2 more sources
Decreased thermal conductivity in Bi_2Sr_2Co_2O_x bulk materials prepared by partial melting
, 2016Bi_2Sr_2Co_2O_ x (BSC-222) bulk materials have been prepared in air by single hot pressing or partial melting followed by hot pressing. Thermal transport properties of as-prepared samples were compared with BSC-222 samples prepared by single partial ...
E. Combe +4 more
semanticscholar +1 more source
Importance of the ‘shape’ of the melting regime during partial melting of the mantle
Nature, 1985The amount of melt formed in individual stream lines of upper mantle rocks passing through a partial melting regime increases from zero at the edge to a maximum at the central axis. Relationships between aggregated liquid compositions from such melting regimes and the source mantle should be obained by integration of the appropriate equations for ...
M. J. O'Hara, M. J. O'Hara
openaire +2 more sources