Results 61 to 70 of about 446 (178)
B/Nb and d11B systematics in the Phlegrean Volcanic District (PVD)
, 2003 Boron concentration and isotopic compositions were determined in representative products from the Phlegrean Volcanic District (PVD), which includes Campi Flegrei (CF), and the islands of Procida and Ischia.
TONARINI S. +5 more
core +1 more source
Journal of Economic Geology, 2022 The study area is located about 30 km south of Ramsar, in the central Alborz zone. In addition to the Nusha granitoids (with an age of about 56 million years), the outcrops in this area, mainly include Paleozoic and Mesozoic rock units. Petrographically,
Farbood Hakimi Bandboon +2 more
doaj +1 more source
Block Rotations in NW Iran in Response to the Arabia‐Eurasia Collision Constrained by Paleomagnetism
Tectonics, Volume 43, Issue 8, August 2024.Abstract Northwest Iran is a seismically active region dominated by NW‐SE trending strike‐slip faults, such as the North Tabriz and Qosha Dagh faults, and smaller NNE‐SSW striking faults. The Bozgush Mountains are shaped by these faults and divided into two domains that show a difference in strike. To quantify rotational tectonic deformation in NW Iran,
Ali Niknam +4 more
wiley +1 more source
Mafic Alkaline Magmatism in the East Tintic Mountains, West-Central Utah: Implications for a Late Oligocene Transition from Subduction to Extension [PDF]
, 2012 Voluminous Eocene to Oligocene intermediate to silicic volcanic rocks related to subduction erupted throughout the Great Basin and were supplanted by bimodal eruptions of basalt and rhyolite related to extension in the Miocene.
Allen, Tara Laine
core
Geochemistry, Geophysics, Geosystems, Volume 25, Issue 3, March 2024.Abstract Open‐conduit conditions characterize several of the most hazardous and active volcanic systems of basaltic composition worldwide, persistently refilled by magmatic inputs. Eruptive products with similar bulk compositions, chemically buffered by continual mafic inputs, nevertheless exhibit heterogeneous glass compositions in response to ...
A. Pontesilli +10 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 25, Issue 2, February 2024.Abstract Isotopic and elemental signatures in arc magmas bear similarities to marine sediments from the forearc. Partial melts of subducted sediments were previously invoked as the predominant carrier of material between the slab and mantle wedge, whereas aqueous fluids were deemed too inefficient at mobilizing trace elements to account for arc magma ...
M. Putak Juriček +2 more
wiley +1 more source
, 2020 The early Oligocene East Tintic volcanic field of central Utah, located near the eastern margin of the Basin and Range Province, consists of mafic to silicic volcanic (mostly intermediate-composition lava flows) and shallow intrusive rocks associated ...
Eric H Christiansen +6 more
core
, 2019 The giant Huayangchuan U-Nb-Pb deposit in the Qinling Orogen is a newly verified carbonatite-hosted deposit in the southern margin of the North China Craton (NCC), central China.
Zhao, Liandang +3 more
core +1 more source
Features of sedimentation and volcanism of the Tastauskaya rift structure in Central Kazakhstan
Литосфера, 2020 Research subject. A meridional Tastau rift structure located in the Famenian sub-latitude rift system of Central Kazakhstan was investigated, including the specific features of its constituent sediments and volcanism, as well as the stages of its ...
A. M. Kurchavov, T. N. Kheraskova
doaj +1 more source
Basin Research, Volume 36, Issue 1, January–February 2024.Middle Miocene Volcanic Flare‐up Preceding and Synchronous with the Langhian/Serravallian Sea Level Decline in the North Pannonian Basin. The top part of the graphical abstract depicts a geological overview of the Pannonian Basin System, featuring the Danube Basin within it.
Samuel Rybár +4 more
wiley +1 more source