Results 71 to 80 of about 171,248 (333)
Geological Journal, EarlyView.Using DZmix and DZstats models, we quantified the contributions of potential sources of the Lanzhou basin. Our findings indicate that the Cenozoic cooling and denudation signals primarily originated from Qilian and West Qinling, which were the main sediment sources.
Hang Liu +3 more
wiley +1 more source
Contrasting magma chemistry in the Candelaria IOCG district caused by changing tectonic regimes
Scientific ReportsIron oxide-copper-gold (IOCG) deposits are a vital source of copper and critical elements for emerging clean technologies. Andean-type IOCG deposits form in continental arcs undergoing extension, and they have a temporal relationship with magmatism ...
R. Romero +6 more
doaj +1 more source
Petrografi dan Geokimia Unsur Utama Granitoid Pulau Bangka: Kajian Awal Tektonomagmatisme
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, 2013 Bangka Island is composed by Klabat Granite and its granitoid variations. This study aims to investigate the characteristics of granitoid Bangka Island to be applied in the study of magmatism, tectonic situations and relationships developed in granitoid ...
Kurnia Setiawan Widana
doaj +1 more source
Two-sided asymmetric subduction; implications for tectonomagmatic and metallogenic evolution of the Lut Block, Eastern Iran [PDF]
, 2011 West directed subduction zones show common characteristics, such as low structural elevation, deep trench, steep slab and a conjugate back-arc basin that are opposite to those of the east directed subduction zones.
Arjmandzadeh, R. +5 more
core +2 more sources
Insights on the kinematics of the India-Eurasia collision from global geodynamic models [PDF]
, 2012 The Eocene India-Eurasia collision is a first order tectonic event whose nature and chronology remains controversial. We test two end-member collision scenarios using coupled global plate motion-subduction models. The first, conventional model, invokes a
Flament, Nicolas +5 more
core +2 more sources
A silicon memory of subduction [PDF]
Nature Geoscience, 2019 Subduction processes may have operated very early in Earth’s history according to the heavy silicon isotope compositions of Archaean igneous rocks. The silicon that precipitated out of the Archaean oceans as chert was subducted and melted to yield seawater-like heavy isotope signatures in early granitic rocks.
openaire +2 more sources
Geological Journal, EarlyView.Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae +6 more
wiley +1 more source
Deep fault sliding rates for Ka-Ping block of Xinjiang based on repeating earthquakes
Open GeosciencesThe seismically active Ka-Ping Block within Xinjiang, China, represents a zone of potential earthquake hazards, and existing surface measurements cannot fully reflect the area’s sub-surface slip rates.
Gao Chaojun +5 more
doaj +1 more source
The water and fluid-mobile element cycles during serpentinite subduction. A review
European journal of mineralogy, 2019 : The key role of serpentinites in the global cycles of volatiles, halogens and fl uid-mobile elements in oceans and in subduction zones is now ascertained by many studies quantifying their element budgets and the composition of fl uids they release during
M. Scambelluri, E. Cannaò, M. Gilio
semanticscholar +1 more source
Limnology and Oceanography, EarlyView.Abstract Harmful algal blooms caused by toxin‐producing species of the diatom genus Pseudo‐nitzschia have been linked to anomalously warm ocean conditions in the Northern California Current System. This study compares summertime concentrations of Pseudo‐nitzschia spp.
Alexis D. Fischer +7 more
wiley +1 more source