Showing papers in "Lithos in 2017"

TL;DR: In this paper, the authors examined the granitic suites in a late-collision environment, the Variscan French Massif Central (FMC), and compared them with the suites found in an oceanic arc.

TL;DR: In this article, the mode of occurrence and major and trace-element chemistry of apatite from calcite and dolomite carbonatites, their associated cumulate rocks (including phoscorites) and hydrothermal parageneses were studied using a set of 80 samples from 50 localities worldwide.

TL;DR: In this paper, three distinct pulses of basaltic volcanism followed by either bimodal lavas or silicic volcanic products during the Eocene to Early Miocene were identified.

TL;DR: The Yangchuling W-Mo mine in Jiangnan porphyry-skarn (JNB) tungsten ore belt as mentioned in this paper is the first recognized typical W-mo deposit in China in the 1980's.

TL;DR: In this article, the authors present zircon U-Pb ages, bulk-rock major and trace element analyses and Sr-Nd-Hf isotope compositions on representative samples of the syn-collisional Dulan batholith at the eastern end of the East Kunlun Orogenic Belt (EKOB).

TL;DR: In this paper, a detailed study on the volcanic rocks of the Yeba Formation (YF) with the results offering insights into the ways in which the juvenile crust may be accreted in the southern Lhasa Terrane in the Jurassic.

TL;DR: In this article, the metasomatic processes are responsible for many of the heterogeneities found in the upper mantle of cratonic lithosphere and to illustrate the differences between metasomatism caused by hydrous silicate and carbonate-rich melts.

TL;DR: In a homogeneous pyrolitic mantle there is little tendency for layered convection, with slabs that may stagnate in the transition zone because of the positive buoyancy caused by post-spinel and post-ilmenite reactions, and hot plumes that are accelerated by phase transformations in the 600-800 km depth range.

TL;DR: A review of zircon U-Pb age and Hf isotopic data mainly obtained over the last two decades and discuss their contributions to our current understanding of crust-mantle evolution, with emphasis on the Lu-Hf isotope composition of the bulk silicate Earth (BSE), early differentiation of the silicates Earth, and the evolution of the continental crust over geologic history is presented in this paper.

TL;DR: In this paper, the authors used a combination of the European Regional Development Fund and European Social Fund as part of the convergence funding for Cornwall and the Isles of Scilly supporting a PhD for BS (Combined Universities in Cornwall project number11200NCO5) and the European Union (Horizon 2020 project 641650 FAME).

TL;DR: In this article, the authors used LA-ICPMS zircon U-Pb dating results to investigate the timing of the final closure of the Paleo-Asian Ocean (PAO).

TL;DR: In this paper, the authors describe newly discovered Neoproterozoic orthogneisses from the Mishan region in the central Jiamusi-Khanka Block.

TL;DR: In this article, a systematic study on the postcollisional potassic and adakitic rocks in order to investigate their petrogenetic links with the coeval mantle-derived ultrapotassic rocks and shed light on the potential input from underthrusted Indian continental crust is presented.

TL;DR: In this article, detrital zircons are used to probe the early Paleozoic history of NE Iran and evaluate the link between sediment sources and Gondwanan pre-Cadomian, Cadomian and younger events.

TL;DR: In this article, the authors presented petrological, geochronological and geochemical data for pillow lavas from Cambrian ophiolites in the Lajishan and Yongjing regions of the South Qilian Accretionary Belt (SQAB), from the southern part of the Qilian Orogen, northern China.

TL;DR: In this article, the authors integrate current knowledge on the physical properties, chemical composition, mineralogy and fabric of cratonic mantle with experimental and thermodynamic constraints on the formation and migration of melts, both below and within cratononic lithosphere, in order to find petrologically viable explanations for mid-lithospheric discontinuities.

TL;DR: In this article, an experimental calibration of the empirical Al-in-olivine thermometer for mantle peridotites proposed by De Hoog et al. was provided.

TL;DR: In this article, the timing of partial melting and melt crystallization in granulite facies rocks of the Socorro-Guaxupe Nappe (SGN), Brazil is constrained using a combination of imaging techniques, LA-ICP-MS and EPMA dating, trace element geochemistry and thermobarometry.

TL;DR: In this paper, a detailed study on geochronology, elemental and Sr-Nd-Hf isotopic geochemistry for the Hermyingyi and Taungphila granites in southern Myanmar is presented, with the aim of determining their petrogenesis and tectonic implications.

TL;DR: In this article, a thermodynamically constrained study of the magma major element compositions produced by the entrainment of a fraction of the mineral assemblage which coexisted with melt in the source, either the peritectic, non-peritectic or mixtures of both, in several metasedimentary source compositions from 650 to 950°C at 0.8 GPa.

TL;DR: The Cinovec rare-metal pluton as mentioned in this paper formed in the final stage of the magmatic evolution of the late Variscan volcano-plutonic system known as the Teplice caldera.

TL;DR: In this article, the composition of the unexposed Proterozoic crystalline basement to the Bight and Eucla Basins is investigated through zircon Hf isotopes and whole rock geochemistry from new drillcore samples.

TL;DR: In this article, the Pouso Alegre mafic rocks from the Neoproterozoic Southern Brasilia Orogen outcrop as rare lenses within continental gneisses.

TL;DR: In this article, the authors used a primitive mantle normalized trace element distribution diagram to understand the nature of the source of the Vietnamese basaltic rocks from southern Vietnam, which are composed of tholeiite basalt, alkaline basanite, trachybasalt and trachyandesite.

TL;DR: The Nanling Range (NLR) is the largest tungsten metallogenic province in China and perhaps in the world as mentioned in this paper, and the NLR granites include biotite granites, two-mica granites and garnet muscovite granite.

TL;DR: The Vila Jussara Suite was recognized recently and its geologic, mineralogical and geochemical characteristics are presented in this paper and compared with the data available in the literature on the Estrela Complex, Serra do Rabo and Igarape Gelado granites and Planalto Suite.

TL;DR: In this article, the authors examined evidence of changes in opaque phase assemblage and ferric iron content as a consequence of subduction, and as a function of geodynamic setting.

TL;DR: In this paper, the distribution and origin of extraneous argon in the Cycladic Blueschist Unit (CBU, Greece) were characterized by applying the 40Ar/39Ar dating technique on three Cycladic islands, Syros, Tinos and Ios, which span a complete transect of the CBU and discuss regional implications for the tectonometamorphic evolution of the CBU.

TL;DR: In this article, a geochemical and petrographic analysis of the Gouli batholith and most of the Permian-Triassic granitoids in the EKOB formed during the subduction of the Paleo-Tethys Ocean instead of subsequent syncollision setting.