Showing papers in "Gondwana Research in 2016"

TL;DR: The Qinling Orogenic Belt (QOB) as mentioned in this paper is a composite orogenic belt that witnessed four major episodes of accretion and collision between discrete continental blocks, such as the North China Block, North Qinling Block and the South China Block.

TL;DR: A review of major gold mineralization events in China and a summary of metallogenic provinces, deposit types, metallogen epochs and tectonic settings are presented in this paper.

TL;DR: Zhang et al. as discussed by the authors presented new zircon U-Pb ages, Hf isotope data, and whole-rock major and trace element data for Early Mesozoic intrusive rocks in the Erguna Massif of NE China, and used these data to constrain the history of southward subduction of the Mongol-Okhotsk oceanic plate, and its influence on NE China as a whole.

TL;DR: In this paper, the formation of these belts is explained by a generic process, involving three independent steps as prerequisite for the development of deposits: (i) intense chemical weathering of sedimentary rocks on a stable continent resulting in the enrichment of Sn and W in the protoliths, (ii) sedimentary-followed by tectonic-accumulation of the enriched debris at continent margins, and (iii) heating of the voluminous sedimentary protoliss generating Sn and/or W enriched melts.

TL;DR: In this article, the basic principles of hydraulic sorting are described and illustrated for determining mineral fertility in modern sediments, and a quantitative approach for mineral fertility determination that applies these basic principles to the analysis of modern Sediments is presented.

TL;DR: In this article, a plate tectonic model for the Iapetus and Rheic oceans is presented, which is defined by explicit and rigorously managed plate boundaries, the nature and kinematics of which are derived from geological evidence and plate-tectonic principles, and an extensive review of the underlying geological and paleogeographic data is also presented.

TL;DR: In this article, a suite of magmatic rocks developed at the periphery of one of these microblocks, the Jiaoliao Block that forms part of the composite Eastern Block of the NCC is investigated.

TL;DR: In this article, three mineralization styles are identified in metalliferous coal deposits: tuffaceous, hydrothermal-fluid, and mixed-tuffaceous-hydrothermal types.

TL;DR: The Qinling Orogenic belt has been well documented that it was formed by multiple steps of convergence and subsequent collision between the North China and South China Blocks during Paleozoic and Late Triassic times as mentioned in this paper.

TL;DR: Recently obtained sedimentological, biostratigraphic, petrographic, geochemical and geochronological data on Cretaceous to Paleogene strata in the Cuojiangding area (Zhongba county, south Tibet) shed new light on the tectonic evolution of the southern margin of the Lhasa Block during closure of Neotethys and initial collision with India as mentioned in this paper.

TL;DR: A comparative analysis of the occurrences and internal structures of these sedimentary melanges at a global scale with a focus on the Circum-Mediterranean, Appalachian and Circum Pacific regions is presented in this paper.

TL;DR: A comprehensive survey of the Cenozoic deposits along the Quebrada Cachiyacu near Contamana in Peruvian Amazonia is presented in this paper, where 34 fossil-bearing localities identified have yielded a diversity of fossil remains, including vertebrates, mollusks, arthropods, plant fossils, and microorganisms, ranging from the early Paleocene to the late Miocene-?Pliocene (>20 successive levels).

TL;DR: A dismembered ophiolite suite from the southern margin of the Jiaoliao microblock in the interior of the unified Eastern Block of the North China Craton is reported in this article.

TL;DR: In this article, the provenance of Neoproterozoic to Early Paleozoic sedimentary rocks in the Sierras Pampeanas has been established using U-Pb SHRIMP age determination of detrital zircons in twelve metasedimentary samples, with supplementary Hf and O isotope analyses of selected samples.

TL;DR: In this paper, the authors presented new paleomagnetic data from five Middle-Upper Jurassic sedimentary sequences (Quemo Co, Buqu, Xiali, Suowa and Xueshan Fms) of the eastern North Qiangtang Terrane (QT) at Yanshiping (33.6 degrees N, 92.1 degrees E).

TL;DR: Zhang et al. as discussed by the authors proposed an asynchronizing paleo-Pacific slab rollback model to account for the episodic magmatism and crustal extension in SE China.

TL;DR: In this article, the authors used secondary ion mass spectrometer (SIMS) and whole-rock geochemical and Pb isotope data for the Paleozoic granitoids in or near the eastern Alxa block to constrain the petrogenesis of these rocks and the relationship between the Alxa Block and the North China Craton.

TL;DR: In this article, new LA-ICP-MS zircon U-Pb ages from paragneiss and schist of the Proterozoic Jinshuikou Group and quartzite of the Probabilistic Binggou Group are reported in an attempt to evaluate the Neoproterozoics and Paleozoic tectonic evolution of the Northern Tibetan Plateau.

TL;DR: P-wave anisotropy tomography is a powerful tool for mapping three-dimensional variations of azimuthal and radial seismic anisotsropy in the crust and mantle as discussed by the authors.

TL;DR: In this paper, the authors present new ion microprobe U-Pb zircon age data from northern Thailand and eastern Myanmar which suggest that Palaeoproterozoic crust underlies both the Main Range and Eastern Province granites.

TL;DR: In this paper, a model for the upwelling of the Hainan plume was proposed, which showed a mushroom-like continuous low-velocity anomaly characterized by a columnar tail with a diameter of 200-300 km extending down to the lower mantle beneath north of the hotspot and a head spreading laterally in and around the mantle transition zone.

TL;DR: In this model, early Mesoproterozoic tectonics is driven by two opposing subduction systems as mentioned in this paper, one dominantly west-dipping subduction zone existed at the eastern margin of Australo-Antarctica until ca. 1.55-1.50 Ga.

TL;DR: In this article, the authors presented the first petrological, XRD diffraction, heavy mineral and detrital zircon U-Pb age data from turbidite sandstones in the Chin Hills that were deposited on West Burma crust in the Triassic.

TL;DR: Zhang et al. as mentioned in this paper proposed that the Tengchong terrane in SW Yunnan is most likely linked with the Lhasa Terrane in southern Tibet, both of which experienced similar tectonomagmatic histories since the Early Paleozoic.

TL;DR: Radiometric U-Pb ages for the Riversleigh World Heritage fossil mammal site in northwestern Queensland, Australia are presented in this paper, where speleothems which are generally found in intimate or well-documented association with fossil remains are assumed to record the age of the latter with a high degree of confidence.

TL;DR: In this article, the authors investigated the Quxu batholith in the central domain of the Gangdese magmatic belt and reported the occurrence of hornblende gabbros for the first time.

TL;DR: The composite Meghri-Ordubad and Bargushat plutons of the southernmost Lesser Caucasus consist of successive Eocene to Pliocene magmatic pulses, and host two stages of porphyry Cu-Mo deposits.

TL;DR: In this article, the authors reported evidence for Hadean and Eoarchean crust from the fringe of the Coorg Block, one of the oldest crustal blocks in Peninsular India.

TL;DR: In this article, the authors presented new zircon U-Pb (ICP-MS) data from 52 igneous and metamorphic rocks, which they combined with whole rock geochemical and Pb isotopic data to constrain the tectonic history of the Precambrian to Mesozoic basement of the Merida Andes and the Santander Massif.

TL;DR: A cladistic analysis suggests a placement as sister to Mantodea, supported by a profemoral brush and other characters, and Alienopterus was an evolutionary dead end in the roach–mantis transition zone.