Science in China Series D: Earth Sciences

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Aoyitake plagiogranite in western Tarim Block, NW China: Age, geochemistry, petrogenesis and its tectonic implications
Science in China Series D: Earth Sciences - Tập 49 - Trang 1121-1134 - 2006
Chuanlin Zhang, Haifeng Yu, Haimin Ye, Yu Zhao, Dongsheng Zhang
SHRIMPP U-Pb zircon age and geochemical and Nd isotopic data are reported for the Aoyitake plagiogranite in western Tarim Block, NW China. The plagiogranite intruded the Middle Proterozoic and Lower Carboniferous with an exposure area of ca. 60 km2 and crystallized at 330.7±4.8 Ma. Rock types mainly include tonalite, trondhjemite and minor amounts of diorite and quartz-diorite. Feldspars in the ro...... hiện toàn bộ
Mô hình hóa phân tầng của kiến trúc reservoir kênh cổ ở dưới sâu Dịch bởi AI
Science in China Series D: Earth Sciences - Tập 51 - Trang 126-137 - 2008
ShengHe Wu, DaLi Yue, JianMin Liu, QingLin Shu, Zheng Fan, YuPeng Li
Các nghiên cứu về kiến trúc reservoir sông chủ yếu tập trung vào các lớp vỏ địa vật lý và trầm tích hiện đại, nhưng hiếm khi nghiên cứu về reservoir dưới lòng đất, do đó có rất ít phương pháp hiệu quả để dự đoán sự phân bố của các kiến trúc reservoir dưới lòng đất. Trong bài báo này, lấy reservoir sông uốn khúc của tầng Guantao tại mỏ dầu Gudao, bồn trũng Jiyang, vùng vịnh Baohai, Trung Quốc làm v...... hiện toàn bộ
#kiến trúc reservoir #kênh cổ #mô hình hóa phân tầng #dầu mỏ #giếng khoan
Microfossils and molecular records in oil shales of the Songliao Basin and implications for paleo-depositional environment
Science in China Series D: Earth Sciences - Tập 52 - Trang 1559-1571 - 2009
ZiHui Feng, Wei Fang, Xue Wang, ChunYan Huang, QiuLi Huo, JuHe Zhang, QingHua Huang, Lei Zhang
Several oil shale beds, over 10 m thick, occur at the base of the first member of the Upper Cretaceous Qingshankou Formation (K2 qn 1) in the Songliao Basin. They act both as excellent source rocks for conventional oil and as potential oil deposit for shale oil production. Here we combine micropaleontology with organic geochemistry to investigate the...... hiện toàn bộ
A Mössbauer effect study of Fe3+ bearing γ-Fe2SiO4
Science in China Series D: Earth Sciences - Tập 44 - Trang 34-46 - 2001
Zhe Li, I. Shinno, Danian Ye, Pingqiu Fu, Yueming Zhang
Three synthetic Fe3+ bearing λ-Fe2SiO4 were analyzed using electron probe method, and the Mössbauer spectra of the samples at 298 K, 150 K, and 95 K were measured. Each spectrum at three temperatures is composed of two doublets. These two doublets are assigned to Fe2+ in the octahedral sites and Fe3+ in the tetrahedral sites, respectively. Site occupancies were determined. The results show that Fe...... hiện toàn bộ
Wind tunnel simulation experiment and investigation on the electrification of sandstorms
Science in China Series D: Earth Sciences - Tập 47 - Trang 529-539 - 2004
Qu Jianjun, Muhong Yan, Guangrong Dong, Hongfa Zhang, Ruiping Zu, Wanquan Tuo, Aiguo Zhao, Zhenghua Xiao, Fang Li, Bao Yang
Electric discharge phenomenon is often observed during the passage of sandstorms over desert regions and sometimes does great damage to human beings. Based on previous researches on the electrification of sandstorms by the scholars both at home and aboard, the authors conducted the simulation experiments on the electric fields of sandstorm-triggered creeping-saltating sand, suspending sand and wat...... hiện toàn bộ
The Permian seamount stratigraphic sequence in Chiang Mai, North Thailand and its tectogeographic significance
Science in China Series D: Earth Sciences - Tập 51 - Trang 1768-1775 - 2008
QingLai Feng, WenQiang Yang, ShangYue Shen, Chongpan Chonglakmani, Kitsana Malila
The widespread Permian carbonate strata outcropped in northwestern Thailand are considered as the evidence for the Late Paleozoic shallow Tethys. Our investigation, however, shows that basalt can be discovered usually under the Permian carbonate sequence in Chiang Mai-Fang area, northwestern Thailand. The basalt belongs to subalkalic basalt and potassic trachybasalt. They are characterized by high...... hiện toàn bộ
The westerly fluctuation and water vapor transport over the Qilian-Heihe valley
Science in China Series D: Earth Sciences - Tập 47 Số S1 - Trang 32-38 - 2004
Keli Wang, Cheng Guodong, Hansong Xiao, Hao Jiang
Improved method to determine the molar volume and compositions of the NaCl-H2O-CO2 system inclusion
Science in China Series D: Earth Sciences - Tập 50 - Trang 385-391 - 2007
YuCai Song, WenXuan Hu, Pei Ni, ZhenHao Duan, XueFeng Zhang
On the basis of Parry’s method (1986), an improved method was established to determine the molar volume (V m) and compositions (X) of the NaCl-H2O-CO2 (NHC) system inclusion. To use this method, the determination of V m-X only requires three microthermometric data of a NHC inclusion: partial homogenization temperature ...... hiện toàn bộ
Discovery and significance of microspherules at Lower-Middle Devonian boundary of Guangxi, South China
Science in China Series D: Earth Sciences - - 2000
Zhiqiang Bai
Multiple time scale evaluation of the energy balance during the maize growing season, and a new reason for energy imbalance
Science in China Series D: Earth Sciences - Tập 52 - Trang 108-117 - 2009
JianXia Guo, LinGen Bian, YongJiu Dai
Energy imbalance is a common problem associated with the measurement of surface energy using the eddy covariance method. In the evaluation of the energy balance, people usually pay more attention to the statistical result that the effective energy (the sum of sensible and latent heat) is systematically lower than the available energy (the difference of net radiation and ground heat flux). However,...... hiện toàn bộ
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