Qiang Xu

Qiang Xu
Chinese Academy of Sciences | CAS · Institute of Tibetan Plateau Research

About

63
Publications
21,742
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,547
Citations

Publications

Publications (63)
Article
The subsurface structure of the Himalaya is dominated by the seismically active Main Himalayan Thrust fault, which accommodates about half of the plate convergence between India and Asia. In Central Nepal, geological, geophysical, and geodetic studies indicate that the Main Himalayan Thrust has a flat-ramp-flat geometry, which causes cooling, erosi...
Article
Full-text available
Reconstructing the Paleogene topography and climate of central Tibet informs understanding of collisional tectonic mechanisms and their links to climate and biodiversity. Radiometric dates of volcanic/sedimentary rocks and paleotemperatures based on clumped isotopes within ancient soil carbonate nodules from the Lunpola Basin, part of an east-west...
Article
Full-text available
The Pamir plateau protrudes ~300 km between the Tajik- and Tarim-basin lithosphere of Central Asia. Whether its salient location and shape are caused by forceful indentation of a promontory of Indian mantle lithosphere is debated. We present a new local-seismicity and focal-mechanism catalog, and a P-wave velocity model of the eastern part of the c...
Article
Middle Triassic marine carbonate successions deposited on the northwestern Yangtze passive continental margin preserve information about the initial collision between the South China Block (SCB) and the North China Block (NCB). We extracted data from 51 boreholes and 23 outcrops of the Middle Triassic Leikoupo Formation to interpret the spatio-temp...
Preprint
Full-text available
In the Pamir, we describe the overturned eastern end of the Asian slab and Kunlun intermediate depth seismicity and infere the shape of the northern and eastern end of the Indian mantle indenter beneath the Pamir.
Article
Full-text available
A wide-angle seismic reflection / refraction survey along a ~ 600 km long transect through the Junggar basin from Emin to Qitai allows to receive several images near N-S trending blind faults, which are located at the lower part of the upper crust, the middle crust and the lower crust within the basin and cut up the Moho. These faults, with high se...
Article
Full-text available
The Late Miocene-Pleistocene Gyirong Basin in the central Himalaya provides a record of basin evolution in response to tectonic extension within the active Himalaya orogen. The up to ~550-m-thick basin fill can be subdivided, from bottom to top, into four stratigraphic units with distinctly different lithofacies associations: alluvial fan, debris f...
Article
Full-text available
To explore the west‐east variations in the underthrusting Indian lithosphere, we investigate the lithospheric structure using P and S receiver functions obtained from a west‐east linear array of 19 broadband stations spanning the Tethyan Himalaya at 85.5–88.5°E. Our observations of the Main Himalayan Thrust (MHT) and Moho serving as the top and bot...
Article
We present detailed lithospheric images of the NE Tibetan Plateau by applying the depth migration technique to S receiver functions derived from 113 broadband stations. Our migrated images indicate that the lithosphere-asthenosphere boundary (LAB) lies at depths of 105–120 km beneath the Qilian terrane and reaches depths of 126–140 km below the Alx...
Article
Full-text available
Original stable isotope compositions of carbonates representing conditions in the latest Oligocene-early Miocene Kailas and Qiabulin areas, both in southern Tibet, record Oligocene-Miocene paleoelevations of the Gangdese arc and the Himalayan orogen, and provide constraints on the formation of the Himalayan-Tibetan Plateau. Oxygen isotope compositi...
Article
The Pane Chaung Formation is exposed in the Indo-Burman Ranges, and has been involved in collision between the Indian Plate and West Burma Block. However, controversies exist over the provenance and paleogeographic reconstruction of the Pane Chaung Formation. This study presents new petrographical and detrital zircon U–Pb ages and Hf isotopic data...
Article
The Bangong-Nujiang suture zone, separating the Lhasa and Qiangtang blocks of the Tibetan Plateau, is marked by remnants of the Bangong-Nujiang oceanic basin. In the Gaize area of central Tibet, Mesozoic sedimentary strata recording the evolution of the basin and subsequent collision between these two blocks include the Upper Triassic-Lower Jurassi...
Article
The topography evolution of the southeastern Tibetan Plateau provides a constraint for evaluating various geodynamic models of plateau formation. We reconstruct the Paleocene to Eocene paleoelevation of the Cenozoic Gonjo basin in the Qiangtang terrane, using oxygen and carbon stable isotopic results from pedogenic carbonates of the lower Ranmugou...
Article
Full-text available
The initial collision between Indian and Asian continents marked the starting point for transformation of land-sea thermal contrast, uplift of the Tibet-Himalaya orogen, and climate change in Asia. In this paper, we review the published literatures from the past 30 years in order to draw consensus on the processes of initial collision and suturing...
Article
We reconstruct the rise of a segment of the southern flank of the Himalaya-Tibet orogen, to the south of the Lhasa terrane, using a paleoaltimeter based on paleoenthalpy encoded in fossil leaves from two new assemblages in southern Tibet (Liuqu and Qiabulin) and four previously known floras from the Himalaya foreland basin. U-Pb dating of zircons c...
Article
Full-text available
As the boundary thrust between India and Asia in southern Tibet, the Zhongba-Gyangze Thrust (ZGT) emplaced the Yarlung Zangbo Suture Zone (YZSZ) units in the hanging wall southward onto Tethyan Himalaya sequences (THS) of the northern Indian continental margin in the footwall. Detailed field investigation, electron backscatter diffraction (EBSD) an...
Article
Full-text available
The northernmost exposures of sub-Himalayan Cenozoic strata in the Hazara–Kashmir syntaxial region of north Pakistan comprises the Paleocene–Eocene marine strata in the lower part and Oligocene–Miocene nonmarine strata in the upper part. This study provides the detrital zircon U–Pb geochronology of the Cenozoic strata in this area. The strong resem...
Article
Full-text available
The high topography of central Asia is the most distinctive expression of the India-Asia collision, yet a broad understanding of the timing and processes involved in the development of the Tibetan Plateau remains elusive. Here, we investigate the Neogene Songpan Basin located on the eastern margin of the plateau using oxygen isotope paleoaltimetry...
Article
The surface uplift history of the Tibetan Plateau has provided a key boundary criterion for various geological, climatic, and environmental events since the Cenozoic. The paleoelevation history of the plateau is organically associated with interactions amongst deep geodynamics, earth surface processes, and climate change. Understanding of plateau u...
Article
The uplift history of Tibet is crucial for understanding the geodynamic and palaeoclimatologic evolution of Asia; however, the pattern of plateau uplift through space and time remains unresolved. We use stable isotope data from palaeosol carbonates to reconstruct the Eocene (~46 Ma) elevation of the Tangra Yum Co region (northern Lhasa terrane). Th...
Article
Full-text available
Cenozoic conglomerates are exposed discontinuously along the length of the Yarlung Tsangpo suture zone on the southern margin of the Gangdese arc. These conglomerates (the “Gangdese Conglomerates” herein) record a crucial stage in the uplift and erosion history of the southern Tibet after the initial India-Asia collision. In the Mt. Kailas area, th...
Article
The Tangra Yum Co graben is one of the active structures that accommodate the east-west extension of the southern Tibetan Plateau and hosts one of the largest Tibetan lakes, which experienced lake-level changes of ~200 m during the Holocene. In this study, cosmogenic 10Be is employed to (1) quantify catchment-wide denudation rates in fault-bounded...
Article
The provenance of Sibumasu terrane sedimentary rocks and their tectonic relationships with surrounding terranes exposed in Southeast Asia record separation and accretion of Gondwana-derived terranes during late Paleozoic and Mesozoic time. This paper reports sandstone petrographic and U–Pb detrital zircon geochronologic data from Ordovician to Lowe...
Article
Many lakes on the Tibetan Plateau exhibit strandplains with a series of beach ridges extending high above the current lake levels. These beach ridges mark former lake highstands and therefore dating their formation allows the reconstruction of lake-level histories and environmental changes. In this study, we establish a lake-level chronology of Tan...
Article
Bangong-Nujiang is an important suture zone of Tibet Plateau. However, its subduction polarity and closure time are still remaining controversial, which undoubtedly limits our understanding of the evolution of the Tibet Plateau. To constrain some information regarding this aspect, this research was carried out on Zhonggang andesitic basalt and a ne...
Article
Characterization of the stable isotope compositions (δ18O and δD) of modern-day surface waters traversing mountain ranges and bordering continental plateaus is important for refining climate models and establishing modern isotope-elevation gradients along mountain ranges. The Longmenshan margin of the Tibetan Plateau is a steep, 4 km topographic fr...
Article
A geologic investigation was undertaken in the Hoh-Xil-Songpan-Ganzi (HXSG) complex, northern Tibet in order to better understand magma genesis and evolution during the late stages of Paleo-Tethys ocean closure. The HXSG complex is composed of vast accumulations of Middle – Upper Triassic marine gravity flow deposits that were extensively intruded...
Article
Many lakes on the Tibetan Plateau are surrounded by palaeo-shorelines that document former lake-level highstands and hence past changes in climate. Establishing accurate chronologies for these shorelines is crucial to correlate lake-level fluctuations with palaeo-environmental histories that are commonly inferred from lake sedimentary records. Here...
Article
The timing of uplift of the Tibetan Plateau remains controversial, with estimates varying from Eocene to more recent than Pliocene. In particular, the paleoaltimetry of the Qiangtang terrane, on the central Tibetan Plateau, is completely unknown. Here, we present new stable isotope results of fluvial/lacustrine carbonate cement, pedogenic carbonate...
Article
The ~ 220 km-long rupture of the 2008 Mw 7.9 Wenchuan earthquake breached several km-scale geometric discontinuities along strike, including the previously un-mapped NW-trending Xiaoyudong fault, connecting between the two major, NE-trending rupture planes on the Beichuan and Pengguan Faults. In this paper, we present high-resolution mapping of the...
Article
Accretionary complexes record critical information about the history of subduction and accretion along the southern margin of Asia prior to the India–Asia collision. This paper presents detailed field mapping, petrographic and detrital zircon U–Pb data from an accretionary complex within the Yalung–Zangpo suture zone, southern Tibet. From structura...
Article
Full-text available
The age of the India-Asia collision and the amount of continental crustal shortening since the collision are of fundamental importance for understanding the evolution of the Himalayan-Tibetan orogenic system. Discussion about this key issue has been recently revived. Paleomagnetic data can provide paleolatitudes of the pre-collisional southern marg...
Article
The Selin Co basin in the northern Lhasa terrane includes more than 3000 m of upward coarsening Lower Cretaceous strata, and the sedimentary sequence from the flysch to the molasse indicates the evolution of a foreland basin. Petrographic analysis shows that sandstones are rich in volcanic and sedimentary lithics and most of them fall into recycled...
Article
Full-text available
The metamorphic conditions and the age of thermal overprint were determined in meta-pelites, metaarenites and metabasites of the Tethyan Himalayan Sequence (THS) in SE Tibet using Kübler Index and vitrinite reflectance data and applying thermobarometrical (Thermocalc and PERPLEX) and geochronological methods (illite/muscovite K-Ar and zircon and ap...
Article
Full-text available
Leucogranites play a significant role in understanding crustal thickening, melting within continental collisional belts, and plateau uplift. Field investigations show that Miocene igneous rocks from the Hoh Xil Lake area mainly consist of two-mica leucogranites and rhyolites. We studied the Bukadaban two-mica leucogranites and the Kekao Lake, Malan...
Article
Worldwide occurrence and documentation of reverse-type ruptures are sparse. Near Hongkou, the Wenchuan rupture passes through the broad Baisha River valley and provides excellent opportunities to trace the surface faulting in fine details for 13 km distance, one of the longest continuous sections along the entire rupture. In this paper, we present...
Article
Crustal movement around and away from the Namche Barwa syntaxis is indicated in the Asian velocity field inferred from GPS data and Quaternary fault slip rates. Nevertheless, there is a limited field-based control on the rotational history of the north-eastern Himalayan arc. Exploring the poly-phase nature of deformation, within the Cretaceous dior...
Article
Seventeen sites were drilled from ca. 53 Ma old mafic dykes intruded in the Linzizong Formation of the Linzhou Basin for palaeomagnetic studies. From 10 sites a higher coercivity component demagnetized between 20 and 100 mT could be isolated. Detailed rockmagnetic analyses reveal Ti-rich titanomagnetite as the remanence carrier, which indicates tha...
Article
Full-text available
The fate of the colliding Indian and Asian tectonic plates below the Tibetan high plateau may be visualized by, in addition to seismic tomography, mapping the deep seismic discontinuities, like the crust-mantle boundary (Moho), the lithosphere-asthenosphere boundary (LAB), or the discontinuities at 410 and 660 km depth. We herein present observatio...
Article
Full-text available
Fossil tooth enamel from herbivores is considered one of the best proxies for paleoclimate and paleoelevation reconstructions, due to its low susceptibility to diagenetic alteration. A synthesis of oxygen and carbon isotope analyses of modern tooth enamel from herbivores such as Tibetan yaks, asses and antelopes is assessed. The average δ13C(PDB) v...
Article
The formation of peripheral foreland basin may provide a straightway estimate for the initiation age of the continental collision and record robust the following tectonic evolution of the orogen. In this study, we focus on three foreland basin systems related to the India-Asia collision, from north to south, these include the Gangdese retroare fore...
Article
The ages of the east-west trending mafic-ultramafic dykes of southeast Tibet Plateau range between 145 Ma and 130 Ma. In Zhegu area, the subalkaline ultramafic picritic dykes are interpreted to have been highly partial melted from garnet lherzolite mantle source in the depth of 150 ∼ 180 km, 5∼6 GPa; alkaline ultramafic dyke tends to be the result...
Article
We focus on the upper Cretaceous-Palaeogene terrigenous sequences in the Tethyan Himalaya near the Gyangze and Gamba. Our research presents detrital petrology and geochemistry and Cr-spinel electron microprobe data, which together illustrate significant provenance change at the Paleocene and provide the early history of the basin and orogen belt. T...

Network

Cited By

Projects

Projects (2)
Project
Using the stable isotope, as well as the clumped 47 to reconstruct the paleoelvation. I am also trying to using the volcanic glass and meta-mica to do this work. However, the work goes very slowly because I have no prof. to give me more advise.