Results 281 to 290 of about 110,511 (334)
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Himalayan Metamorphism and Its Tectonic Implications
, 2014The Himalayan range exposes a spectacular assemblage of metamorphic rocks from the mid- and deep crust that have fostered numerous models of how the crust responds to continental collisions.
M. Kohn
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, 2005
Banded iron-formations (BIFs) occur in the Precambrian geologic record over a wide time span. Beginning at 3.8 Ga (Isua, West Greenland), they are part of Archean cratons and range in age from about 3.5 until 2.5 Ga.
C. Klein
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Banded iron-formations (BIFs) occur in the Precambrian geologic record over a wide time span. Beginning at 3.8 Ga (Isua, West Greenland), they are part of Archean cratons and range in age from about 3.5 until 2.5 Ga.
C. Klein
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, 1921
Introductory Statement For some years there has been a growing feeling among those who have given the subject consideration, that the peculiar structures found in many meteoric stones are due not to hasty crystallization from a molten magma, as has been ...
G. Merrill
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Introductory Statement For some years there has been a growing feeling among those who have given the subject consideration, that the peculiar structures found in many meteoric stones are due not to hasty crystallization from a molten magma, as has been ...
G. Merrill
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1965
Temperature and pressure are the physical factors that control the process of metamorphism. Metamorphism, in general, refers to the reactions between neighboring minerals of a rock in response to conditions of temperature and pressure prevailing at depth.
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Temperature and pressure are the physical factors that control the process of metamorphism. Metamorphism, in general, refers to the reactions between neighboring minerals of a rock in response to conditions of temperature and pressure prevailing at depth.
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Mechanisms to generate ultrahigh-temperature metamorphism
Nature Reviews Earth & Environment, 2023S. Jiao +9 more
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Science, 1999
Warm and cool subduction zones exhibit differences in seismicity, seismic structure, and arc magmatism, which reflect differences in metamorphic reactions occurring in subducting oceanic crust.
S. Peacock, Kelin Wang
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Warm and cool subduction zones exhibit differences in seismicity, seismic structure, and arc magmatism, which reflect differences in metamorphic reactions occurring in subducting oceanic crust.
S. Peacock, Kelin Wang
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The Realm of Ultrahigh-Pressure Metamorphism
, 2013The discovery of diamond and coesite in crustal rocks is compelling evidence that continental material has experienced pressures that can only be achieved at mantle depths.
J. Gilotti
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, 2010
The Cenozoic history of the retreating Hellenic subduction system in the eastern Mediterranean involves subduction, accretion, arc magmatism, exhumation, normal faulting, and large-scale continental extension from ∼60 Mya until the Recent.
U. Ring, J. Glodny, T. Will, S. Thomson
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The Cenozoic history of the retreating Hellenic subduction system in the eastern Mediterranean involves subduction, accretion, arc magmatism, exhumation, normal faulting, and large-scale continental extension from ∼60 Mya until the Recent.
U. Ring, J. Glodny, T. Will, S. Thomson
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1974
Marls constitute a group of sedimentary rocks with a very large range of composition. The clay constituents, predominantly dioctahedral micas (illite, phengite, muscovite), chlorite, and quartz, are mixed with calcite and/or dolomite in varying proportions.
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Marls constitute a group of sedimentary rocks with a very large range of composition. The clay constituents, predominantly dioctahedral micas (illite, phengite, muscovite), chlorite, and quartz, are mixed with calcite and/or dolomite in varying proportions.
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Fluid-induced processes: metasomatism and metamorphism
, 2010Metamorphism and metasomatism both involve the reequilibration of mineral assemblages due to changes in pressure, temperature and ⁄or chemical environment.
A. Putnis, H. Austrheim
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