Science in China Series D: Earth Sciences

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Research on the method for retrieving soil moisture using thermal inertia model
Science in China Series D: Earth Sciences - Tập 49 Số 5 - Trang 539-545 - 2006
Zhenhua Liu, Yannan Zhao
P-wave crustal velocity structure in western Sichuan and eastern Tibetan region
Science in China Series D: Earth Sciences - Tập 46 - Trang 254-265 - 2003
Chunyong Wang, Jianping Wu, Hai Lou, Mindu Zhou, Zhiming Bai
A deep seismic sounding profile located in the western Sichuan and eastern Tibetan region extends from Batang (Zhubalong) to Zizhong, Sichuan. It passes through the Songpan-Garzê Fold System and the Longmenshan Tectonic Zone, and ends in the Yangtze Craton. Based on the travel times of phases on the profile, incorporating information on the relevant amplitudes, we determined 2-D P-wave crustal vel...... hiện toàn bộ
A high-resolution climatic change since the Late Glacial Age inferred from multi-proxy of sediments in Qinghai Lake
Science in China Series D: Earth Sciences - Tập 48 Số 6 - Trang 742-751 - 2005
Ji Shen, Xingqi Liu, Ryo Matsumoto, Sumin Wang, Xiangdong Yang
Urban land expansion and arable land loss of the major cities in China in the 1990s
Science in China Series D: Earth Sciences - Tập 48 - Trang 1492-1500 - 2005
Minghong Tan, Xiubin Li, Changhe Lu
Based on the land-use data in 1990 and 2000, determined by interpreting Landsat Thematic Mapper (TM) imagery, this paper defines the extent of urban construction land, and extracts patches of urban construction land of 145 cities with the largest areas in 1990 and rable land patches around these cities. With these data, this paper analyzes the characteristics of rban construction land expansion an...... hiện toàn bộ
Genetic model of hanging wall syncline and central dome in extensional fault
Science in China Series D: Earth Sciences - Tập 45 - Trang 440-448 - 2002
Delai Liu, Guiming Ding, Bing Lu
Hanging wall syncline and central dome are special extension structures, developing over the hanging wall in an extensional ramp-flat fault. Under the condition that the flat is sub-horizontal, the hanging wall syncline is separated from the half graben by the central dome. And on the dome forms an erosional surface. Both sediments in the half graben and erosional surface on the top of the central...... hiện toàn bộ
Microstructure characteristics of illite from Chuanlingou Formation of Changcheng System in Jixian County, Tianjin City
Science in China Series D: Earth Sciences - Tập 50 - Trang 1452-1458 - 2007
Tao Chen, HeJing Wang
The microstructure characteristics of illite from the Chuanlinggou Formation of Changcheng System (Chch) in Jixian County, Tianjin City has been studied by means of high-resolution transmission electron microscopy (HRTEM), selected-area electron diffraction (SAED), X-ray energy dispersive spectrum (EDS) and X-ray powder diffraction (XRD). The Kübler index of “illite crystallinity” is 0.505° Δ2θ, w...... hiện toàn bộ
Soil organic carbon storage and soil CO2 flux in the alpine meadow ecosystem
Science in China Series D: Earth Sciences - Tập 50 - Trang 1103-1114 - 2007
Zhen Tao, ChengDe Shen, QuanZhou Gao, YanMin Sun, WeiXi Yi, YingNian Li
High-resolution sampling, measurements of organic carbon contents and 14C signatures of selected four soil profiles in the Haibei Station situated on the northeast Tibetan Plateau, and application of 14C tracing technology were conducted in an attempt to investigate the turnover times of soil organic carbon and the soil-CO2 flux in the alpine meadow ecosystem. The results show that the organic car...... hiện toàn bộ
Mineral chemistry, P-T-t paths and exhumation processes of mafic granulites in Dinggye, Southern Tibet
Science in China Series D: Earth Sciences - Tập 48 - Trang 1870-1881 - 2005
Shuwen Liu, Jinjiang Zhang, Guiming Shu, Qiugen Li
The mafic granulites in Dinggye, as various scale lense-shaped enclaves within the high Himalayan crystalline rock series, occur along mylonitic foliations at the junction between the Southern Tibetan Detachment System (STDS) and the Xainza-Dinggye normal fault system. The main lithological assemblage comprises garnet plagioclase pyroxenite, garnet two-pyroxene granulite, pyroxene garnet amphiboli...... hiện toàn bộ
Preliminary study of mollusk fossils in the Qinan Miocene loess-soil sequence in western Chinese Loess Plateau
Science in China Series D: Earth Sciences - Tập 49 - Trang 724-730 - 2006
Fengjiang Li, Naiqin Wu, Denis-Didier Rousseau
The first near continuous mollusk fossil record from the Qinan Miocene loess-soil sequence is presented. Results show that mollusk species are abundant in the QA-I section between 22 and 6.2 Ma, and both loess layers and soil layers yield mollusk fossil individuals. All mollusk species are terrestrial and well preserved in the section. Most species are identical to those identified in the Quaterna...... hiện toàn bộ
Evolution of planktonic foraminifera and thermocline in the southern South China Sea since 12 Ma (ODP-184, Site 1143)
Science in China Series D: Earth Sciences - Tập 44 - Trang 889-896 - 2001
Baohua Li, Zhimin Jian
Down-core variation in planktonic foraminifera (PF) at Site 1143 (ODP 184) has disclosed the evolution of upper water-column structure over the last 12 Ma in the southern South China Sea. In the early Late Miocene (∽10.6–7.8 Ma), there existed a lower percentage of total deep-dwelling species, reflecting a water thermocline deeper than that in the Middle Miocene, which resulted from the closure of...... hiện toàn bộ
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