Science China Earth Sciences
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Non-matrix-matched analysis of U-Th-Pb geochronology of bastnäsite by laser ablation inductively coupled plasma mass spectrometry
Science China Earth Sciences - Tập 64 Số 4 - Trang 667-676 - 2021
Bastnäsite is widespread in alkali granite, carbonatite and REE ore deposits. The U-Th-Pb ages of bastnäsite can constrain the mineralization age. Currently, the lack of suitable in situ analysis reference material is the major obstacle of bastnäsite U-Th-Pb geochronology. In this study, the matrix effects of U-Pb and Th-Pb age determination in bastnäsite using glass NIST 610 as the external calib......
Tropical Indian Ocean Basin Mode recorded in coral oxygen isotope data from the Seychelles over the past 148 years
Science China Earth Sciences - Tập 57 - Trang 2597-2605 - 2014
The tropical Indian Ocean (TIO) displays a uniform basin-wide warming or cooling in sea surface temperature (SST) during the decay year of El Niño-Southern Oscillation (ENSO) events. This warming or cooling is called the tropical Indian Ocean Basin Mode (IOBM). Recent studies showed that the IOBM dominates the interannual variability of the TIO SST and has impacts on the tropical climate from the ......
Direct estimation of rupture depths of earthquake faults from coseismic surface deformation
Science China Earth Sciences - Tập 57 - Trang 1986-1994 - 2014
The rupture dimensions of earthquake faults are important parameters for characterizing earthquake ruptures and ground motions. Two key parameters to be determined are the rupture depth and dip angle of earthquake faults. Dislocation theory in an elastic half space indicates that if a seismic rupture directly runs up to the ground surface, there exist zero points of horizontal strain in the surfac......
Can the tropical storms originated from the Bay of Bengal impact the precipitation and soil moisture over the Tibetan Plateau?
Science China Earth Sciences - Tập 58 - Trang 915-928 - 2015
This study investigates the impacts of tropical storms originated from the Bay of Bengal (BOBTSs) on the precipitation and soil moisture over the Tibetan Plateau (TP) in April-June (AMJ) and September-December (SOND) during 1981–2011 based on the best track dataset provided by Joint Typhoon Warning Centre (JTWC). Results indicate that there are about 1.35 BOBTSs influence the TP in each year and m......
Compressional behavior of MgCr2O4 spinel from first-principles simulation
Science China Earth Sciences - Tập 59 - Trang 989-996 - 2016
The compressional behavior of the MgCr2O4 spinel has been investigated with the CASTEP code using density functional theory and planewave pseudopotential technique. We treated the exchange-correlation interaction by both the local density approximation (LDA) and generalized gradient approximation (GGA) with the Perdew-Burker-Ernzerhof functional. Our simulation was conducted for the pressure range......
Evaluating the accuracy of Chinese pasture data in global historical land use datasets
Science China Earth Sciences - Tập 61 - Trang 1685-1696 - 2018
Global historical land use datasets are widely used in global environmental change studies; however, uncertainties in the included pasture data have not been evaluated. In this study, using trend, relative difference ratio (RDR), and spatial comparisons, we evaluated the accuracy of China pasture data in the HYDE (versions 3.1 and 3.2), SAGE, and PJ datasets using historical document-based reconst......
Tropical cyclones and multiscale climate variability: The active western North Pacific Typhoon season of 2018
Science China Earth Sciences - - 2020
Magnetohydrodynamics (MHD) numerical simulations on the interaction of the solar wind with the magnetosphere: A review
Science China Earth Sciences - Tập 56 - Trang 1141-1157 - 2013
The magnetosphere is the outermost layer of the geospace, and the interaction of the solar wind with the magnetosphere is the key element of the space weather cause-and-effect chain process from the Sun to Earth, which is one of the most challenging scientific problems in the geospace weather study. The nonlinearity, multiple component, and time-dependent nature of the geospace make it very diffic......
EW-trending uplifts along the southern side of the central segment of the Altyn Tagh Fault, NW China: Insight into the rising mechanism of the Altyn Mountain during the Cenozoic
Science China Earth Sciences - Tập 55 - Trang 926-939 - 2012
The Altyn Tagh Fault and the Altyn Mountain define respectively the tectonic and geographical northern edges of the Tibetan Plateau, and figure prominently in the growth and rising mechanism of the plateau. The rhombus-shaped Altyn Mountain has long been thought to have an intimate relation with the Altyn Tagh Fault; however, its formation mechanism remains unclear and debatable. In this paper, we......
An Early Cretaceous gold mineralization event in the Triassic West Qinling orogen revealed from U-Pb titanite dating of the Ma’anqiao gold deposit
Science China Earth Sciences - Tập 66 - Trang 316-333 - 2022
The West Qinling orogen in central China, formed from continental collision between the North China and Yangtze cratons in the Late Triassic, hosts numerous gold deposits with a total Au endowment of about 2000 t. Most deposits were emplaced at ca. 250–195 Ma and are genetically associated with the Triassic orogenesis. Here in situ U-Pb titanite dating with laser ablation inductively coupled plasm......
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