نتایج جستجو برای: island arc

تعداد نتایج: 91659  

2011
Luis Carlos Hernández Luis Ponce Abel Fundora Enrique López Eduardo Pérez

TiN films were prepared by the Cathodic arc evaporation deposition method under different negative substrate bias. AFM image analyses show that the growth mode of biased coatings changes from 3D island to lateral when the negative bias potential is increased. Nanohardness of the thin films was measured by nanoindentation, and residual stress was determined using Grazing incidence X ray diffract...

2007
Howard Johnson

The Fiji Platform developed as an island arc in the Tertiary. Extensional and transpressional tectonics have deformed the fill of extensive sedimentary basins within the Platform. These basins commonly contain over 3 km of stratified deposits. Five deep petroleum-exploration wells were drilled between 1980 and 1982, but all were dry. There remain reasonable prospects, however, because none of t...

2002
P. McLaren

by intermittent land masses on the northeast and southwest. The area has been cut by numerous right-lateral transcurrent faults and the stratified rocks now lie along the northeastern flank of the Coast Plutonic Complex. leletzky and Tipper (1968) described a faunal stratigraphy for the Taseko Lakes map sheet and discussed the role of the Qaughton trough in the geological history of southwester...

Journal: :Lithos 2021

Ion microprobe UPb zircon dating of intermediate to felsic rocks coupled with bulk-rock geochemistry analyses and compared previously published data shows that the Thores Suite Pearya Terrane northern Ellesmere Island (Arctic Canada) represents an Early Ordovician (c. 490–470 Ma) suite formed in island arc setting. Interestingly, three out five dated samples contain abundant xenocrystic have ag...

Journal: :The Mining-Geological-Petroleum Engineering Bulletin 2023

Sumatra Island and its surroundings, Indonesia, are one of the most active tectonics in world. The Aceh-Andaman earthquake, destructive earthquakes world, occurred there. It has attracted many earth scientists to apply various methods, including seismic tomography, understand island’s subsurface structure tectonic system. This study is first delineate imaging beneath island surroundings using a...

Journal: :Journal of Volcanology and Geothermal Research 2021

We present integrated structural, petrological, mineralogical and geochemical investigations conducted on an exhumed hydrothermal system identified in Terre-de-Haut Island (Guadeloupe archipelago). This work demonstrates, for the first time, occurrence of ductile shear zones, marked by development spaced schistosity planes generated pressure-solution processes. unravel that is coeval with high-...

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