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Featured researches published by Houqi Wang.


Earth and Planetary Science Letters | 2003

Correlation between Indian Ocean summer monsoon and North Atlantic climate during the Holocene

Yetang Hong; Bing Hong; Q.H. Lin; Yongxuan Zhu; Yasuyuki Shibata; Masashi Hirota; Masao Uchida; X.T. Leng; Hanchao Jiang; Hai Xu; Houqi Wang; L. Yi

There has been a number of investigations for the correlation between the Asia monsoon and the North Atlantic climate for the last glacial; however, little research has been done for the present interglacial, the Holocene. Here we present for the first time a high-resolution composite proxy record for the Indian Ocean summer monsoon spanning around 12 000 years based on the δ13C time series of both a single plant species (Carex mulieensis) remains cellulose and the total plant assemblage cellulose in the Hongyuan peat bog from the Tibet Plateau. The records show that the strength of the Indian Ocean summer monsoon had abrupt variations during the last 12 000 years. The weakest monsoon occurred in the Younger Dryas period. Following rapid strengthening from around 11 200 to 10 800 a BP the monsoon kept a generally strong level for around 5300 years. From around 5500 a BP onwards the monsoon strength tended to gradual decrease. In addition, there are a series of abrupt variation events of the monsoon strength on centennial to millennial time scales, which superimpose the general tendency of the monsoon variation. In every case when the ice-rafted debris events in the North Atlantic occurred, the summer monsoon strength decreased correspondingly. These evidences show that teleconnection between the Indian Ocean summer monsoon and the North Atlantic climate is present not only in the last glacial but also in the Holocene, which may be linked to abrupt reorganizations of the ocean thermohaline circulation, leading to redistribution of energy, changing temperature and moisture gradient over the southern subtropical Indian Ocean, and eventually controlling the variability of the Indian Ocean summer monsoon.


Geology | 2017

Quantifying the rise of the Himalaya orogen and implications for the South Asian monsoon

Lin Ding; Robert A. Spicer; Jian Yang; Qiang Xu; Fulong Cai; Shun Li; Qingzhou Lai; Houqi Wang; Teresa E.V. Spicer; Yahui Yue; Anjani Kumar Shukla; Gaurav Srivastava; M. Ali Khan; Subir Bera; R. C. Mehrotra

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 constrains the Liuqu flora to the latest Paleocene (ca. 56 Ma) and the Qiabulin flora to the earliest Miocene (21- 19 Ma). The proto-Himalaya grew slowly against a high (similar to 4 km) proto-Tibetan Plateau from similar to 1 km in the late Paleocene to similar to 2.3 km at the beginning of the Miocene, and achieved at least similar to 5.5 km by ca. 15 Ma. Contrasting precipitation patterns between the Himalaya-Tibet edifice and the Himalaya foreland basin for the past similar to 56 m.y. show progressive drying across southern Tibet, seemingly linked to the uplift of the Himalaya orogen.


Science China-earth Sciences | 2017

Processes of initial collision and suturing between India and Asia

Lin Ding; Satybaev Maksatbek; Fulong Cai; Houqi Wang; Peiping Song; Wei-Qiang Ji; Qiang Xu; Liyun Zhang; Qasim Muhammad; Baral Upendra

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 that took place between the Indian and Asian plates. Following a comparison of the different methods that have been used to constrain the initial timing of collision, we propose that the tectono-sedimentary response in the peripheral foreland basin provides the most sensitive index of this event, and that paleomagnetism presents independent evidence as an alternative, reliable, and quantitative research method. In contrast to previous studies that have suggested collision between India and Asia started in Pakistan between ca. 55 Ma and 50 Ma and progressively closed eastwards, more recent researches have indicated that this major event first occurred in the center of the Yarlung Tsangpo suture zone (YTSZ) between ca. 65 Ma and 63 Ma and then spreading both eastwards and westwards. While continental collision is a complicated process, including the processes of deformation, sedimentation, metamorphism, and magmatism, different researchers have tended to define the nature of this event based on their own understanding, an intuitive bias that has meant that its initial timing has remained controversial for decades. Here, we recommend the use of reconstructions of each geological event within the orogenic evolution sequence as this will allow interpretation of collision timing on the basis of multidisciplinary methods.


Studies in Surface Science and Catalysis | 1993

Xanes, Exafs and Reaction Studies of Some Well-Dispersed Ferric Oxide Catalysts

W. Ji; Y. Kuo; Shikong Shen; Shufen Li; Houqi Wang

Publisher Summary When transition metal oxides are supported on and chemically interact with the surface of the typical oxide carriers—such as Al 2 O 3 and TiO 2 —they form well-dispersed monolayers in the form of two-dimensional compounds, unlike those found at the surface of the unsupported oxide. This chapter characterizes the dispersion state of the well-dispersed monolayer ferric oxides on various supports (γ-Al 2 O 3 , TiO 2 , ZrO 2 , and MgO) by XANES and EXAFS. The modifications of the interaction on the reaction performance of these supported systems have also been studied by three model reactions. The curve fitting results of EXAES data, as well as the features of the XANES, indicate that the dispersion state of Fe 3+ changes from one support to another. The very low CN of next neighboring Fe 3+ with a relative long distance verifies that the Fe 3+ is basically dispersed in monolayers. The modification of the interaction on the reaction performance is not the same for the different reactions.


Earth and Planetary Science Letters | 2005

Inverse phase oscillations between the East Asian and Indian Ocean summer monsoons during the last 12 000 years and paleo-El Niño

Yetang Hong; Bing Hong; Q.H. Lin; Yasuyuki Shibata; Masashi Hirota; Yongxuan Zhu; X.T. Leng; Yongbo Wang; Houqi Wang; L. Yi


Earth and Planetary Science Letters | 2014

The Andean-type Gangdese Mountains: Paleoelevation record from the Paleocene–Eocene Linzhou Basin

Lin Ding; Qiang Xu; Yahui Yue; Houqi Wang; Fulong Cai; Shun Li


Tectonophysics | 2012

Tectonostratigraphy and provenance of an accretionary complex within the Yarlung-Zangpo suture zone, southern Tibet: Insights into subduction-accretion processes in the Neo-Tethys

Fulong Cai; Lin Ding; Ryan J. Leary; Houqi Wang; Qiang Xu; Liyun Zhang; Yahui Yue


Earth and Planetary Science Letters | 2016

Late Triassic paleogeographic reconstruction along the Neo-Tethyan Ocean margins, southern Tibet

Fulong Cai; Lin Ding; Andrew K. Laskowski; Paul Kapp; Houqi Wang; Qiang Xu; Liyun Zhang


Earth and Planetary Science Letters | 2016

The India–Asia collision in north Pakistan: Insight from the U–Pb detrital zircon provenance of Cenozoic foreland basin

Lin Ding; Muhammad Qasim; Ishtiaq A. K. Jadoon; Muhammad Asif Khan; Qiang Xu; Fulong Cai; Houqi Wang; Upendra Baral; Yahui Yue


Gondwana Research | 2017

The evolution of Yarlung Tsangpo River: Constraints from the age and provenance of the Gangdese Conglomerates, southern Tibet

Shun Li; Lin Ding; Qiang Xu; Houqi Wang; Yahui Yue; Upendra Baral

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Lin Ding

Chinese Academy of Sciences

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Qiang Xu

Chinese Academy of Sciences

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Fulong Cai

Chinese Academy of Sciences

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Yahui Yue

Chinese Academy of Sciences

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Shun Li

Chinese Academy of Sciences

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Bing Hong

Chinese Academy of Sciences

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L. Yi

Chinese Academy of Sciences

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Liyun Zhang

Chinese Academy of Sciences

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Q.H. Lin

Chinese Academy of Sciences

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X.T. Leng

Northeast Normal University

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