1. Identifying mantle carbonatite metasomatism through Os–Sr–Mg isotopes in Tibetan ultrapotassic rocks

    Earth and Planetary Science Letters 430:458 (2015)

    Mantle-derived magmas at convergent plate boundaries provide unique insights into the nature of materials subducted to and recycled from depths. Here we present a study of Os–Sr–Mg isotopes on the Oligocene–Miocene ultrapotassic rocks aimed at better understanding sediment subduction a...
  2. Mesozoic–Cenozoic mantle evolution beneath the North China Craton: A new perspective from Hf–Nd isotopes of basalts

    Gondwana Research 27(4):1574 (2015)

    We report here the whole-rock Hf–Nd isotopic data on Mesozoic–Cenozoic basaltic lavas from Liaoning, Shandong, Hebei and Jiangsu–Anhui regions in the North China Craton (NCC). These lavas can be readily subdivided into two groups. The older (>110Ma) lavas are relatively depleted in hig...
  3. Trace element behavior and P–T–t evolution during partial melting of exhumed eclogite in the North Qaidam UHPM belt (NW China): Implications for adakite genesis

    Lithos 226:65 (2015)

    We have studied trace element behavior and timing of decompression melting of UHP rocks during exhumation recorded in the magmatic products, i.e., the melt phase (leucosomes), cumulate (garnetite) and residue (amphibolitized eclogite) from a single outcrop in the south Dulan area, Nort...
  4. The 600–580 Ma continental rift basalts in North Qilian Shan, northwest China: Links between the Qilian-Qaidam block and SE Australia, and the reconstruction of East Gondwana

    Precambrian Research 257:47 (2015)

    • We report 600–583 Ma volcanic-sedimentary sequence in the northwest China. • They have compositions similar to present-day OIB/E-MORB or continental flood basalt...
  5. The terrestrial uranium isotope cycle.

    Nature 517(7534):356 (2015) PMID 25592542

    Changing conditions on the Earth's surface can have a remarkable influence on the composition of its overwhelmingly more massive interior. The global distribution of uranium is a notable example. In early Earth history, the continental crust was enriched in uranium. Yet after the initial rise in...
  6. Magmatic record of India-Asia collision.

    Scientific reports 5:14289 (2015) PMID 26395973 PMCID PMC4585790

    New geochronological and geochemical data on magmatic activity from the India-Asia collision zone enables recognition of a distinct magmatic flare-up event that we ascribe to slab breakoff. This tie-point in the collisional record can be used to back-date to the time of initial impingement of th...
  7. Late Triassic adakitic plutons within the Archean terrane of the North China Craton: Melting of the ancient lower crust at the onset of the lithospheric destruction

    Lithos 212-215:353 (2015)

    We present the results of a geochemical and geochronological study for Late Triassic (230‒220Ma) adakitic plutons within the Archean terrane of the eastern part of the North China Craton (NCC). These plutons show adakitic signatures with high Sr, Sr/Y, (La/Yb)N, and low Cr and Ni. The ...
  8. Corrigendum: Magmatic record of India-Asia collision.

    Scientific reports 5:17236 (2015) PMID 26681579 PMCID PMC4683577

  9. Post-collisional magmatism: Consequences of UHPM terrane exhumation and orogen collapse, N. Qaidam UHPM belt, NW China

    Lithos 210-211:181 (2014)

    Exhumation of subducted slabs and extensional collapse of orogens are the main tectonic processes in ancient and modern continental collisional zones. Magmatism during these two processes may play important roles in understanding reworking and growth of the continental crust. We report...
  10. Lithosphere thinning beneath west North China Craton: Evidence from geochemical and Sr–Nd–Hf isotope compositions of Jining basalts

    Lithos 202-203:37 (2014)

    This study shows lithosphere evolution history in the west North China Craton (NCC) from the early Cretaceous to Quaternary by studying the major element, trace element and Sr–Nd–Hf isotope compositions in Jining basalts of 119.6–108.6Ma, 23.5–21.9Ma and 1.3–0.11Ma. The early...
  11. Melting of continental crust during subduction initiation: A case study from the Chaidanuo peraluminous granite in the North Qilian suture zone

    Geochimica et Cosmochimica Acta 132:311 (2014)

    The Chaidanuo granite batholith is a ∼500km2 homogeneous, high-level intrusion in the North Qilian oceanic suture zone. Three types of enclaves have been recognized, including (1) supracrustal xenoliths, (2) biotite gneiss that represents restite of the upper crustal melting, and (3) c...
  12. Adakitic (tonalitic-trondhjemitic) magmas resulting from eclogite decompression and dehydration melting during exhumation in response to continental collision

    Geochimica et Cosmochimica Acta 130:42 (2014)

    Modern adakite or adakitic rocks are thought to result from partial melting of younger and thus warmer subducting ocean crust in subduction zones, with the melt interacting with or without mantle wedge peridotite during ascent, or from melting of thickened mafic lower crust. Here we sh...
  13. Geochemical constraints on the petrogenesis of granitoids in the East Kunlun Orogenic belt, northern Tibetan Plateau: Implications for continental crust growth through syn-collisional felsic magmatism

    Chemical Geology 370:1 (2014)

    Early Triassic syn-collisional granitoids with mafic magmatic enclaves (MMEs) crop out along the entire East Kunlun Orogenic belt (EKOB) at the northern margin of the Tibetan Plateau. They are andesitic in composition and enriched in light rare earth elements (LREEs) with a flat heavy ...
  14. Trace element budgets and (re-)distribution during subduction-zone ultrahigh pressure metamorphism: Evidence from Western Tianshan, China

    Chemical Geology 365:54 (2014)

    We have conducted an LA-ICP-MS in situ trace element study of garnet, epidote group minerals, phengitic muscovite and paragonite in rocks of basaltic and sedimentary protolith from an ultrahigh pressure metamorphic belt along Western Tianshan, China. The data are used to evaluate the c...
  15. Continental orogenesis from ocean subduction, continent collision/subduction, to orogen collapse, and orogen recycling: The example of the North Qaidam UHPM belt, NW China

    Earth-Science Reviews 129:59 (2014)

    The North Qaidam ultra-high pressure metamorphic (UHPM) belt in the northern Tibetan Plateau records a complete history of the evolution of a continental orogen from prior seafloor subduction, to continental collision and subduction, and to the ultimate orogen collapse in the time peri...
  16. Continental collision zones are primary sites for net continental crust growth — A testable hypothesis

    Earth-Science Reviews 127:96 (2013)

    The significance of the continental crust (CC) on which we live is self-evident. However, our knowledge remains limited on its origin, its way and rate of growth, and how it has acquired the “andesitic” composition from mantle derived magmas. Compared to rocks formed from mantle derive...
  17. The origin and pre-Cenozoic evolution of the Tibetan Plateau

    Gondwana Research 23(4):1429 (2013)

    Different hypotheses have been proposed for the origin and pre-Cenozoic evolution of the Tibetan Plateau as a result of several collision events between a series of Gondwana-derived terranes (e.g., Qiangtang, Lhasa and India) and Asian continent since the early Paleozoic. This paper re...
  18. Tectonics of the North Qilian orogen, NW China

    Gondwana Research 23(4):1378 (2013)

    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. The Qilian Oc...
  19. Elemental responses to subduction-zone metamorphism: Constraints from the North Qilian Mountain, NW China

    Lithos 160-161:55 (2013)

    Subduction zone metamorphism (SZM) and behaviors of chemical elements in response to this process are important for both arc magmatism and mantle compositional heterogeneity. In this paper, we report the results of our petrographic and geochemical studies on blueschist and eclogite fac...
  20. Cambrian bimodal volcanism in the Lhasa Terrane, southern Tibet: Record of an early Paleozoic Andean-type magmatic arc in the Australian proto-Tethyan margin

    Chemical Geology 328:290 (2012)

    This paper reports new zircon LA-ICP-MS U–Pb age and Hf-isotope, whole-rock major and trace element, and Sr–Nd isotope data from Cambrian metavolcanic rocks in the central Lhasa subterrane of southern Tibet. These rocks form a bimodal volcanic suite consisting mainly of silicic metavol...