Showing papers in "Journal of Asian Earth Sciences in 2006"

TL;DR: In this paper, a comprehensive analysis of available geological, geochemical, paleobiogeographical and paleomagnetic data is presented, based on which it is shown that the Permian marine basins in northeast China and adjacent regions include remnants of the Paleo-Asian Ocean in southeastern Inner Mongolia and central Jilin Province.

TL;DR: In this paper, geochemical studies of volcanic rocks forming part of the ophiolites within the Zagros and Naien-Baft orogen indicate that most of them were developed as supra-subduction ophiliites in intra-oceanic island arc environments.

TL;DR: In this paper, the authors reviewed the South China Sea, the associated continental margins, coastal South China and Indochina and found that there was only very limited magmatic activity, most probably after the cessation of sea floor spreading.

TL;DR: In this article, the authors used 250 single detrital zircons from Upper Proterozoic to Ordovician strata collected from the Zhuozi Shan in north-central China to determine the provenance of clastic sedimentary units and assess validity of paleogeographic and regional tectonic models.

TL;DR: Adakitic rocks in the Xuzhou-Suzhou area, eastern China, consist of dioritic and monzodioritic porphyries and were dated at 131-132 Ma by the SHRIMP U-Pb zircon method as mentioned in this paper.

TL;DR: In this paper, an integrated study of a critical segment of the Tauride thrust belt in SE Turkey (Berit area) is presented, where units related to two sutures are exposed in the northerly and southerly parts of the area studied.

TL;DR: The Permian marine biostratigraphy, faunal successions and mutual correlations (where possible) throughout East and Northeast Asia are synthesized, region by region, based on both published literature and the author's field observations in certain parts of the region as mentioned in this paper.

TL;DR: The Dadeldhura thrust sheet in western Nepal consists of Proterozoic-Lower Paleozoic sedimentary and plutonic rocks, and their metamorphic equivalents, that rest structurally on the strata of the Lesser Himalayan sequence.

TL;DR: Granitic intrusions in Eocene and post-Eocene volcanic rocks outcrop in the Northern and Southern Zones of the Eastern Pontides, NE Turkey, as mentioned in this paper.

TL;DR: In this paper, Fourier Transform Infrared (FTIR) spectroscopy, thermal analysis -Differential Scanning Calorimetry (DSC) and Thermo-Gravimetry(TG-DTG) were used to study the dehydration behavior of synthetic goethite and two naturally occurring goethites from Banded Iron Formation (BIF), at C.S. Halli, Chitradurg district, Karnataka, India.

TL;DR: Based on the petrography and geochemistry, it is suggested that the Sungun deposit as a composite stock comprising an early monzonite/quartzmonzonite and a later diorite/granodiorite phase as discussed by the authors.

TL;DR: The Qilian Caledonian orogenic belt on the north margin of the Qinghai-Tibet Plateau was formed by convergence and collision of the Alxa terrain, Qilian terrain and Qaidam terrain this article.

TL;DR: In this article, the Aldan Shield of Siberia as a continuation of the Wyoming Province of Laurentia has been largely abandoned in favor of models connecting Siberia to northern Laurentia, but it remains controversial which part of Siberia is contiguous with northern Canada and also at issue is the western Laurentia-Australia-East Antarctica connection.

TL;DR: In this paper, the apatite fission track ages (AFT) were determined on samples collected along a N-S section of the eastern Kunlun Mountains across the Middle and South-Kunlun Faults between Buqingshan and Dulan.

TL;DR: In this paper, the authors presented petrographic and geochemical data on representative samples of the Devonian adakite, boninite, low-TiO2 and high-Ti O 2 basalts and associated rocks in the southern Altay areas, Xinjiang, NW China.

TL;DR: The Sar-Cheshmeh porphyry Cu-Mo deposit is located in Southwestern Iran (∼65 km southwest of Kerman City) and is associated with a composite Miocene stock, ranging in composition from diorite through granodiorite to quartz-monzonite as discussed by the authors.

TL;DR: In this article, the authors used the reduced stress concept to improve the understanding of the kinematic characteristics of the Denizli Basin and determined two dominant extension directions using fault-slip data and travertine fissure orientations.

TL;DR: The sediment geochemistry, including REE, of surface and core samples from Mansar Lake, along with mineralogical investigations, have been carried out in order to understand the provenance, source area weathering, hydrolic sorting and tectonic setting of the basin this paper.

TL;DR: The high-grade metamorphic basement in the North Qaidam mountains (NQD) is composed mainly of Jinning age metasedimentary rocks and crustally-derived granites, possibly accompanied by minor Paleoproterozoic and Archaean material.

TL;DR: The Indus-Yarlung Tsangpo suture (IYS) is a continuous melange zone that forms an inverted U in map view around the Namche Barwa antiform.

TL;DR: In this article, a review of the Permian strata and correlation of the permian successions for different tectonic units in Northeast China are reviewed and summarized in this paper.

TL;DR: In this article, SHRIMP zircon U-Pb and 39Ar/40Ar isotopic dating results for the orthogneiss yielded an age of 799±10 Ma, which is considered to be the crystallization age of its igneous protolith formed in an arc-related environment.

TL;DR: In this paper, the authors have reported the first time from greenstone belts of the Eastern Dharwar craton (EDC) of the Kushtagi-Hungund greenstone belt, where they have found high-Mg, high Fe-, high Mg-dacites and andesites (boninitic affinities), and sodic-plagioclase-quartz rich felsic rocks (adakites with Na2O (∼4-6 wt.).

TL;DR: In this article, the authors used SHRIMP and ID-TIMS dating results to reveal that the widespread Early-Neoproterozoic granites in the Qinling orogen were emplaced mainly between ∼960 and ∼900 ǫ.

TL;DR: The composite Kackar batholith as discussed by the authors consists of various intrusions derived from different geodynamic settings ranging from early to mature arc, through collision, to post-collisional extension in the Neo-Tethyan convergence system of the eastern Pontides of NE Turkey.

TL;DR: Sausar Group of rocks is bounded both in the North and the South by two granulite belts of different crustal histories at least up to ∼1100 Ma as discussed by the authors.

TL;DR: In this paper, two sections in Upper Middle to Lower Upper Permian shallow-water limestones at Kamura and Akasaka in southwest Japan were analyzed for detailed lithostratigraphy and biostratigy.

TL;DR: In this article, an early Paleozoic ultrahigh pressure metamorphic belt occurs in the north Qaidam-Altun mountains and was offset about 400 km southwestward by the Altyn Tagh strike-slip fault.

TL;DR: Using both TIMS and SHRIMP methods, U-Pb isotopic dating was carried out on zircons from eclogites and their host gneisses in the Xitieshan area of the north Qaidam mountains, western China as mentioned in this paper.

TL;DR: The chemical composition of a barren biotite granite, a two-mica granite, and a rare metal-bearing pegmatite (the No. 3 vein in Keketuohai, Altay Mountains, northwest China), along with mineral separates of apatite and mica, were analyzed and compared in the present work.