Showing papers in "Gondwana Research in 2013"

TL;DR: This paper reviewed and reevaluated these hypotheses in light of new data from Tibet including the distribution of major tectonic boundaries and suture zones, basement rocks and their sedimentary covers, magmatic suites, and detrital zircon constraints from Paleozoic metasedimentary rocks.

TL;DR: In this paper, an up-to-date along-strike synthesis of the Tianshan orogenic collage and a new tectonic model to explain its accretionary evolution is provided.

TL;DR: In this article, the authors show that the 2.6-2.5 Ga basement rocks in the eastern and western parts of the NCC formed under different tectonic settings from those in the central part, consistent with subduction and continent-continent collisional belts.

TL;DR: In this article, the authors presented an overview of key geological observations in the South China Block with respect to its Phanerozoic tectonics, and proposed a geodynamic model for the Mesozoic evolution of the SCB, which is characterized by strong thrusting/transpression, anatexic granitic magmatism, high-grade metamorphism and the poor involvement of the juvenile mantle derived rocks.

TL;DR: In the last three decades, extensive geological, geochemical and geophysical investigations have been carried out on these cratonic blocks and intervening orogenic belts, producing an abundant amount of new data and competing interpretations.

TL;DR: In this article, the authors present an overview of regional geology, geochronology and geochemistry for the composite orogenic belt of the Qinling-Tongbai-Hong'an orogens.

TL;DR: The North China Craton (NCC) has experienced a complex geological evolution since the early Precambrian, and carries important records of secular changes in tectonics and metallogeny.

TL;DR: The Qilian Orogen at the northern margin of the Tibetan Plateau is a type suture zone that recorded a complete history from continental breakup to ocean basin evolution, and to the ultimate continental collision in the time period from the Neoproterozoic to the Paleozoic.

TL;DR: Gondwana is reviewed from the unification of its several cratons in the Late Neoproterozoic, through its combination with Laurussia in the Carboniferous to form Pangea and up to its progressive fragmentation in the Mesozoic.

TL;DR: Based mainly on field geological observation and geochronologic data, six tectonic units have been recognized in western Inner Mongolia (China), including, from south to north: North China Craton (NCC), Southern Orogenic Belt (SOB), Hunshandake Block (HB), Northern Orogenics Belt (NOB), South Mongolia microcontinent (SMM), and Southern margin of Ergun Block (SME), suggesting that the Tectonic framework of the CAOB is characterized by an accretion of different blocks and orogenic belts RE

TL;DR: The NE China Khondalite Belt as mentioned in this paper is a terrane formed by a collision between currently unidentified terranes with the Southeastern Angara-Anabar Province at about 500-Ma, where the rocks were deformed and metamorphosed to granulite facies.

TL;DR: A detailed case history of the Indian plate tectonic evolution can be found in this paper, where the authors present a case study of the repeated rifting of Indian plate from surrounding Gondwana continents, its northward migration, and its collision first with the Kohistan-Ladakh Arc at the Indus Suture Zone, and then with Tibet at the Shyok-Tsangpo Suture.

TL;DR: In this paper, the authors explain the Variscan orogen in a two-plate scenario, reasoning that the complexity of the orogen (multitude of high-grade metamorphic belts, compositional diversity of coeval magmatism, and arrangement of foreland basins) is the result of the distribution of crustal domains of contrasting rheological properties.

TL;DR: In this paper, an overview of the formation and evolution of the Precambrian continental lithosphere in South China is presented based on an integrated study of zircon U-Pb ages and Lu-Hf isotopes in crustal rocks, with additional constraints from Re-Os isotope data on mantle derived rocks.

TL;DR: In this paper, the authors provided a comprehensive synthesis on the regional geology and analytical data of the Tarim Block and its main evolution stages and its sedimentary-magmatic-metamorphic concurrence to the main tectonic events.

TL;DR: This paper showed that post-Archean continental crust does not begin life in oceanic arcs, and that continental crust was not formed by seafloor plate tectonics in the late Archean.

TL;DR: Ocean plate stratigraphy (OPS) is a term used to describe the sequence of sedimentary and volcanic rocks deposited on oceanic crust substratum from the time it forms at a spreading center, to the time that it is incorporated into an accretionary prism at a convergent margin this paper.

TL;DR: In this article, the authors show that cratons involved in intercontinental collisions in a lower plate position are often affected by orogenic events, leading to the transformation of their margins.

TL;DR: The demonstration of geographic and niche range changes offers a novel means of assessing the downfall of Ediacara-type taxa at the hands of emerging metazoans, which is hypothesize to be most likely due to the indirect ecological impact metazans had upon the Ediacarans.

TL;DR: Using SHRIMP zircon ages, the authors in this paper found that the North Tianshan orogenic belt in Kyrgyzstan consists predominantly of Neoproterozoic to early Paleozoic assemblages and tectonically interlayered older Precambrian crystalline complexes and formed during early PDEs and collisional events.

TL;DR: In this paper, a synopsis of detrital zircon U-Pb ages of sandstones from North Africa and neighboring Israel and Jordan, which allows us to identify zones with characteristic sediment provenance along the northern Gondwana margin (in present-day coordinates) in Cambrian-Ordovician times, and helps us to unravel the peri-Gondwana jigsaw puzzle.

TL;DR: In this article, the authors synthesize the information on mineralization and magmatism, S−Pb-H-O-C-He-Ar isotopic data of the ores and Sr−Nd-Pb−Hf isotopic values of the Mesozoic plutons from the Shandong region.

TL;DR: A high-resolution oxygen isotope record based on 356 measurements of conodont apatite from several low latitudinal sections in South China, USA and Iran was composed in order to unravel Permian palaeotemperature and ice volume history.

TL;DR: In this paper, the Permian marine faunas in the Qinghai-Tibet Plateau can be assigned to four biotic provinces: Cathaysian, Indoralian, Cimmerian and Himalayan provinces, as well as a broad South Transitional Zone for parts of the permian.

TL;DR: Li et al. as mentioned in this paper presented zircon LA-ICP-MS U-Pb data from 8 samples which reveal the timing of magmatism in the Taihang Mountains as ca. 130.

TL;DR: This article used U-Pb isotope dating of detrital zircons by laser ablation to refine the depositional age range of selected horizons within the Winton Formation.

TL;DR: In this article, the authors interpreted changes in sandstones and mudstones of the Gondwana succession in drill hole GDH-45 from the Khalaspir basin of Bangladesh.

TL;DR: Zircon U-Pb dating of the inherited magmatic zircons from fine-grained eclogite reveals a Neoproterozoic age of 934-Ma as mentioned in this paper.

TL;DR: Paleoclimatic time series from Permian and Triassic paleosols reveal transient episodes of unusually warm and wet conditions, interrupting long periods of cool and dry conditions usual for calcareous red paleools as mentioned in this paper.