Results 111 to 120 of about 16,733 (259)
Interplay between oceanic subduction and continental collision in building continental crust. [PDF]
Zhu DC +8 more
europepmc +1 more source
Episodic Rifting of a Large Igneous Province Concentrated Along a Microcontinent Boundary
Abstract Many large igneous provinces (LIPs) comprise once contiguous magmatic products that are now fragmented across multiple tectonic plates. Emplacement of these voluminous magmatic products is commonly coeval with, or shortly followed by, fragmentation into constituent domains.
Jeremy L. Asimus +11 more
wiley +1 more source
Abstract When, where, and how much fluid is released from subducting oceanic crust control deformation, element cycling, and magmatism in subduction zones. However, the palimpsest of tectonometamorphic processes in the exhumed rock record complicates the relation of geologic observations to geodynamic models of subduction fluid sources and transport ...
P. C. Lindquist +4 more
wiley +1 more source
Applicability of ERTS-1 to Montana geology [PDF]
The author has identified the following significant results. Late autumn imagery provides the advantages of topographic shadow enhancement and low cloud cover.
Alt, D. D. +6 more
core +1 more source
Geologic Guide for the Northern Part of the Peninsular Range Province, Southern California [PDF]
This geologic guide deals with parts of Los Angeles, San Bernardino, Riverside, and San Diego Counties, in southern California, and in effect is a sampling of the geology and mineral deposits in the northern part of the Peninsular Range province.
Jahns, Richard H.
core
Structure of the North‐Central Chile Subduction Zone From Local Earthquake Tomography
Abstract The fluid cycle in subduction zones prescribes large parts of its structure and seismogenic behavior. Background seismicity inside the downgoing slab is linked to fluid release from dehydration reactions, whereas fluid overpressure along the plate interface can alter interplate coupling, megathrust earthquakes, and the presence or absence of ...
Nicolás Hernández‐Soto +8 more
wiley +1 more source
The El Crispinejo granite forms part of a small, but distinctive late intrusive suite of cordierite-bearing peraluminous granites in the South Portuguese Zone (SPZ). This granite has the best outcrop relationships of the suite.
A. DÍEZ MONTES +3 more
doaj
Abstract Rock microstructure controls geothermal fluid flow within reservoirs hosted in active volcanic environments and as such it is necessary to constrain the microstructural evolution of rocks at elevated pressure and temperature conditions. Despite Andean geothermal systems hosting numerous high enthalpy geothermal plays, there remains a paucity ...
V. Mura +8 more
wiley +1 more source
U-Pb (Zircon) Ages of Metavolcanic Rocks From the Itaiacoca Group: Tectonic Implications [PDF]
The main aim of this work is to present and discuss the U-Pb ages obtained for zircon grains from metavolcanic rocks of theItaiacoca Group. The Itaiacoca Group is a metavolcano-sedimentary sequence, which occurs as a narrow belt between theCunhaporanga ...
Oswaldo Siga Jr. +8 more
doaj
Abstract Detrital sediments that accumulate downstream and are preserved in sedimentary rocks can allow characterization of geologic formations that are inaccessible for spatial or temporal reasons. However, mixing, sorting, and alteration of sediment during transport may complicate reconstruction of protolith characteristics.
Audrey R. Putnam +7 more
wiley +1 more source

