Results 81 to 90 of about 12,638 (229)
Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]
, 2010 A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge +4 more
core +2 more sources
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.Abstract The opening of the Southwest Sub‐basin (SWSB) of the South China Sea was slow‐spreading and has been propagated toward the southwest. Yet, the structural variability and magmatic accretion process of the SWSB are still enigmatic. Here, utilizing a wide‐angle seismic profile traversing the central segment of the SWSB, we obtain detailed S‐wave ...
Ye Yuan +6 more
wiley +1 more source
Stable isotope compositions of the Penninic ophiolites of the Kõszeg-Rechnitz series [PDF]
, 2007 The ophiolitic rocks of the easternmost Penninic unit, the Kőszeg-Rechnitz series, were analyzed for their H, C and O stable isotope compositions. Serpentinite, gabbro, blueschist, talc deposits, ophicarbonates, as well as calcite and inclusion fluids ...
Demény, Attila +2 more
core +1 more source
Iron Sources and Cycling During Diagenetic Transformations of Negev Phosphorites (Israel)
Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.Abstract The Late Cretaceous Negev area in the Levant was influenced by high productivity upwelling in southern Tethys, leading to massive deposition of phosphorites. The phosphorites occur in two facies: (a) pristine phosphorites with low phosphorous (P) content, formed under low‐energy, high‐productivity conditions, and (b) reworked phosphorites with
Irina Zweig +3 more
wiley +1 more source
Journal of Maps, 2019 The Tso Morari nappe is well known for having suffered ultrahigh-pressure metamorphism in the northwest Himalaya. Its pressure-temperature evolution has been widely studied and debated since the end of the 1990s.
Nicolas Buchs, Jean-Luc Epard
doaj +1 more source
Evolution and economic significance of listwaenites associated with Neoproterozoic ophiolites in south Eastern Desert, Egypt [PDF]
, 2013 Most South Eastern Desert ophiolites are found along the Allaqi-Heiani-Gerf suture along the Egypt-Sudan border. Serpentinites, altered slices of upper mantle, are the main components of this suture and other sutures in the Arabian-Nubian Shield ...
Azer, M.K.
core +3 more sources
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
Surprises from the top of the mantle transition zone [PDF]
, 2016 Recent studies of chromite deposits from the mantle section of ophiolites have revealed a most unusual collection of minerals present as inclusions within the chromite. The initial discoveries were of diamonds from the Luobosa ophiolite in Tibet. Further
Dobrzhinetskaya +6 more
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract Comprehension of the ophiolitic mélange plays a key role in the tectonic reconstruction of an ancient orogenic belt in terms of plate tectonics. The tectonic nature of the NNW‐trending southern Jinshajiang ophiolitic mélange is still controversial.
Di Xin +4 more
wiley +1 more source
Journal of Asian Earth Sciences: X, 2020 Recent studies suggest the existence of two ophiolites in Palawan Island: the Central Palawan Ophiolite (CPO) and the Southern Palawan Ophiolite (SPO). New geochemical data in this study from the volcanic rocks of the Palawan ophiolites further support ...
Cris Reven L. Gibaga +2 more
doaj +1 more source