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  1. No Access

    Article

    Age dating of lacustrine sediments in Lake Tianshuihai of the Tibetan Plateau by using U-series isochron method and its significance

    The age of the clastic-clay sediments with varied content of carbonate in core TS95 taken from the Lake Tianshuihai in the northwest of the Tibetan Plateau was determined successfully by using the total sample...

    Zhaoyu Zhu, Teh-Lung Ku, Shangde Luo, Houyun Zhou, Qizhong Wen… in Chinese Science Bulletin (2001)

  2. No Access

    Article

    Mobility sequence of chemical elements during loess weathering-pedogenesis, Weinan, Shaanxi Province, China

    The distribution of chemical elements in the Weinan loess section shows that: (1) carbonate is the critical constituent affecting loess chemistry. The leaching of carbonates may cause “apparent” enrichment of ...

    Guiyi Diao, Qizhong Wen in Chinese Journal of Geochemistry (1999)

  3. No Access

    Article

    Organic geochemistry markers of climatic evolution in loess region of China

    Two hundred and thirty-five samples collected from Weinan loess section (L2 – S0) have been analyzed by TOC (total organic carbon) and pyrolysis hydrocarbons. The curve of TOC with depth has been set up and compa...

    Rongfen Jia, Zhao Lin, Youmei Liu, Qizhong Wen in Chinese Geographical Science (1997)

  4. No Access

    Article

    Geochemical records of palaeoclimatic changes in Weinan section since the last interglacial

    Weinan section consists of Holocene soil S0, last glacial loess L1, and last interglacial soil S1, furtherly L1 can be subdivided into three layers of loess (L1–1, L1–3, and L1–5), and two layers of weakly dev...

    Qizhong Wen, Guiyi Diao, Rongfen Jia, Jimin Sun… in Chinese Geographical Science (1997)

  5. No Access

    Article

    The quaternary climo-environment changes in Chaiwopu basin of **njiang region

    This paper describes the paleoclimatic changesoccurring in the Chaiwopu Basin since 730,000 yr.B.P., together with theformation and evolution of Chaiwopu Lake based on the chronology and characteristics of a c...

    Qizhong Wen, Yafeng Shi in Chinese Geographical Science (1993)

  6. No Access

    Article

    Loess in the longxi basin of gansu province

    The Nuanquangou loess section in the Longxi Basin has been examined in terms of stratigraphic investigation, including14C dating, paleomagnetic polarity, spore-pollen diagram, and mineral and chemical analyses. T...

    Qizhong Wen, Honghan Zheng, Jiamao Han, Junda Wang… in Chinese Geographical Science (1991)

  7. No Access

    Article

    Rare-earth elements in Luochuan loess section, Shaanxi province

    TheΣ REE in loesses of different ages in the Luochuan section shows a narrow range of variation, indicating the homogeneity of loessic materials in chemical composition. The REEs in loess are concentrated mainly ...

    Qizhong Wen, Suhua Yu, Fuqing Sun, Yuqi Wang, Bingru Chen, Shude Tu… in Geochemistry (1985)

  8. No Access

    Article

    Preliminary investigation of REE in loess

    REE oxides in loess are estimated to amount to about 200 ppm. The REE distribution patterns of loess and its clay-sized fractions are characterized by the enrichment of rare earth elements of Ce family.

    Qizhong Wen, Suhua Yu, **ongfei Gu, Jianquan Lei in Geochemistry (1983)

  9. No Access

    Article

    A preliminary discussion on the source of loessic material in China — A study of the surface textures of silt quartz grains by transmission electron microscope

    Loess of China, regardless of its age, exhibits similarity in the surface texture of silt quartz grains, all of them having conchoidal fractures, flat cleavage planes (or plates), and mechanical cracks, and ha...

    Yanchou Lu, Qizhong Wen, Baijun Huang, Yushun Min, Huaxing Deng in Geochemistry (1982)