Results 81 to 90 of about 19,957 (229)
Tectonics, Volume 45, Issue 4, April 2026.Abstract High‐pressure rocks from subduction complexes are key records of the physical and chemical processes that operate on the subduction interface, but interpretation of these records requires accurate structural understanding of where they formed in the subduction zone and the mechanisms by which they were exhumed. We present new geologic mapping,
Jordan W. Wang +5 more
wiley +1 more source
Chromitite deposits of Ufaley ultramafic massif (South Urals)
GeoresursyData on the morphology, composition, textural and structural features of chromite deposits of the Ufaley ultramafic massif are presented. The mineralogical and compositional features of the host ultramafic rocks allow us to interpret them as depleted ...
D. E. Saveliev
doaj +1 more source
, 2010 The United Arab Emirates (UAE) is one of the world’s most rapidly urbanising countries. Despite the recent downturn in the economy, the region continues to undergo rapid development, particularly around Abu Dhabi and Dubai.
Ellison, Richard +3 more
core
Mineral chemistry of the ophiolitic peridotites and gabbros from the Serow area: Implications for tectonic setting and locating the Neotethys suture in NW Iran [PDF]
, 2014 The Serow ophiolite in NW Iran, located at the Iran-Turkey border, is composed of mantle sequence peridotites, predominantly lherzolitic-harzburgite with subordinate amounts of lherzolite and dunite, and a crustal sequence made from gabbros, diabases ...
Moazzen, Mohssen, Rezaii, Leyla
core +1 more source
Origin of plagiogranites in the mawat ophiolite complex,kurdistan region, NE Iraq [PDF]
Kirkuk Journal of Science, 2007 The igneous mass in Mawat Ophiolite Complex (MOC) is built up by various basic and ultrabasic intrusions that are associated with minor acidic, intermediate and basic intrusion.
doaj +1 more source
Time relations and structural-stratigraphic patterns in ophiolite accretion, west central Klamath Mountains, California [PDF]
, 1982 New geochronological data and published structural and stratigraphic data show that two distinctly different ophiolitic assemblages formed in general proximity to one another at nearly the same time and were subsequently imbricated along a regional ...
Harper, Gregory D. +3 more
core +1 more source
Journal of Geography (Chigaku Zasshi), 1989 Recent results of dredging and drilling of inner trench slopes have revealed that the abundant ophiolitic rocks (fore-arc ophiolite) crop out in the Izu-Ogasawara, Mariana, Yap, Tonga, and Middle America regions. These are commonly composed of serpentinized peridotite, gabbro, and volcanics of basic to intermediate composition.The fore-arc ophiolite of
Hirokazu MAEKAWA +2 more
openaire +2 more sources
Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas [PDF]
, 2008 We present the results of an analytical model of porous flow of viscous melt into a steadily dilating ‘‘channel’’ (defined as a cluster of smaller veins) in downwelling subarc mantle.
Abelson +37 more
core +1 more source
A mid-Archaean ophiolite complex, Barberton Mountain land [PDF]
New field observations and structurally restored geologic sections through the southern part of 3.5-3.6 Ga Barberton greenstone belt show that its mafic to ultramafic rocks form a pseudostratigraphy comparable to that of Phanerozoic ophiolites; this ...
Dewit, M. J., Hart, R., Hart, R.
core +1 more source
Application of imaging spectrometer data to the Kings-Kaweah ophiolite melange [PDF]
The Kings-Kaweah ophiolite melange in east-central California is thought to be an obducted oceanic fracture zone and provides the rare opportunity to examine in detail the complex nature of this type of terrain.
Mustard, John F., Pieters, Carle M.
core +1 more source