Results 41 to 50 of about 17,505 (279)
40Ar/39Ar AGE OF ALKALINE ROCKS OF VERHNEAMGINSKIY MASSIF (ALDAN SHIELD, SOUTH YAKUTIA)
Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 The relevance of the research is caused by the need to expand mineral resources base, including gold-bearing ores. Large alkaline provinces, like Aldan-Stanovoy shield, are of interest because gold-bearing ores usually related to alkaline rock.
Anton V. Ponomarchuk +5 more
doaj +1 more source
Geosciences, 2023 Ambitle in the Feni Island Group is located within the NW trending Tabar–Lihir–Tanga–Feni (TLTF) volcanic island chain, Melanesian Arc, northeastern Papua New Guinea. The TLTF chain is renowned for its alkaline magmatism, geothermal activity, copper–gold
Olive L. Ponyalou +2 more
doaj +1 more source
Carboniferous and Permian magmatism in Scotland [PDF]
, 2004 Extensional tectonics to the north of the Variscan Front during the Early Carboniferous generated fault-controlled basins across the British Isles, with accompanying basaltic magmatism.
Fitton, J.G. +4 more
core +1 more source
Isotope geochemistry and petrogenesis of peralkaline Middle Miocene ignimbrites from central Sonora: relationship with continental break-up and the birth of the Gulf of California [PDF]
, 2008 Middle Miocene peralkaline ignimbrites constitute a specific geodynamic marker of the early stage of opening of the Gulf of California, preserved either in central Sonora or the Puertecitos area, in Baja California.
Amortegui, Andrea +7 more
core +3 more sources
Open Geosciences, 2015 This is the second part of a two-volumespecial issueof Open Geoscience (formerly Central European Journalof Geosciences) that aims to be instrumental in providingan update of Mafic-Ultramafic Rocks and Alkaline-Carbonatitic Magmatism and Associated ...
Kogarko Lia N. +3 more
doaj +1 more source
Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]
, 2006 Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Downes, Hilary, Wilson, M.
core +1 more source
The Depositional Record, EarlyView.Comparisons of Lower‐Middle Permian Shanxi and Lower Shihezi formations from the North Ordos Basin reveal that different types and percentages of volcanic detritus induced by active magmatic cycles can significantly change diagenetic evolution and favourable reservoirs.
Yuanlan Tang +11 more
wiley +1 more source
Geochemistry and petrogenesis of volcanic rocks from Daimao Seamount (South China Sea) and their tectonic implications [PDF]
, 2015 The South China Sea (SCS) experienced three episodes of seafloor spreading and left three fossil spreading centers presently located at 18°N, 17°N and 15.5°N.
Castillo, P +5 more
core +2 more sources
The Depositional Record, EarlyView.Our research uses a multidisciplinary approach, including organic and inorganic geochemistry, biostratigraphy, carbon isotope geochemistry and organic petrography to reconstruct depositional conditions and organic matter accumulation during the Pliensbachian and Toarcian.
Premila Wijesinghe +7 more
wiley +1 more source
Petrogenesis of the drift magmatism in the Cabo Frio High, Campos Basin, Brazil: Evidence from Sr–Nd–Pb–Hf isotopes [PDF]
Brazilian Journal of GeologySituated between the Campos and Santos basins, the Cabo Frio High emerges as a focal point of heightened magmatic activity during the Santonian–Campanian and the Eocene period following the breakup of these basins.
Tatiele de Barros +3 more
doaj +1 more source