... earthquakes ( M 5.8, M 6.0, and M 5.4) occurred around the Halahu region of Delingha, China, near the western end of the Qilian–Haiyuan fault. These earthquakes are unusual M 5+ events in this low‐seismicity region, and both the U.S. Geological Survey and Global Centroid Moment Tensor solutions suggest...

...Figure 7. Plots of SiO 2 versus various major oxides of gneisses in the Chachahe unit of NW China. The compositions of gneisses in the Delingha Complex, NW China, are also presented for comparison. Data for the Delingha Complex in Figures 7 – 11 and 13 are from Gong (2014) , Yu et al...

...) , 1978 , Geological Map of Delingha Sheet, People’s Republic of China : Xining, China, Qinghai BGMR, scale 1:200,000 [in Chinese] . Qinghai BGMR (Qinghai Bureau of Geology and Mineral Resources) , 1991 , Regional Geology of Qinghai Province : Beijing, China , Geological Publishing House...

... the appropriate site term. 27 March 2018 © Seismological Society of America The Qaidam basin, with an area of about 120 , ​ 000    km 2 , is the third largest basin in China. It is located in northeastern Tibetan plateau, with an average elevation inside the basin of about 3 km...

...Haoran Li; Fengyue Sun; Liang Li; Jiaming Yan Abstract The Hudesheng mafic–ultramafic intrusions are located in the Oulongbuluke Block, north of the Qaidam Block in Qinghai Province, NW China. We carried out a detailed study of the intrusions, including field observations, petrology, zircon U–Pb...

... of the tectonic relationship between the Columbia supercontinent and Rodinia supercontinent. China mainly consists of three Precambrian cratons, i.e., the North China Craton, the South China Craton, and the Tarim Craton, which were amalgamated through Phanerozoic orogenic belts ( Fig. 1A ; Zhai and Santosh...

...) at the Delingha station (monthly mean precipitation amount, column; monthly mean temperature, diamond; monthly mean hydrogen isotope (δ 2 H) values of precipitation, square) ( Yao et al., 2013 ). (C) HYbrid Single-Particle Lagrangian Integrated Trajectory Model (HYSPLIT) trajectories for summer, fall, winter...

... for the legend. DEM from SRTM with 30‐m resolution, earthquakes from China Earthquake Network Center. AMF, Aimunike fault; DCF, Dachaidan fault; LLF, Lvliangshan fault; OLF, Oulongbuluke fault; SZF, southern Zongwulongshan fault; TMF, Tuosuhu‐Maoniushan fault; XTF, Xitieshan fault; ZWF, Zongwulong fault...

...He Jiao; Hai-Feng Lu; Guo-Biao Huang; Qiang-Qiang Cui; Qing-Feng Ding; Xuan Zhou; Rui-Zhe Wu The Yama fluorite deposit in the Qilian Orogen in NW China is characterized by predominant granitic magmatism and fluorite mineralization. The wall rocks hosting the fluorite–quartz veins in the Yama area...

.../j.jseaes.2018.01.009 . Qinghai BGMR (Qinghai Bureau of Geology and Mineral Resources) , 1978 , Geological Map of Delingha Sheet, People’s Republic of China : Xining, China, Qinghai BGMR , scale 1:200,000 [in Chinese] . Qinghai BGMR (Qinghai Bureau of Geology and Mineral Resources) , 1991...

... Basin,” Lithologic Reservoirs , vol. 26 , no. 6 , pp . 20 – 27 , 2014 . 27 L. Wang , Z. Li , C. Liu , et al ., “The Carboniferous source rock maturity evolution in the Dflingha Delingha depression in the Qaidam Basin, Northwest China,” Journal of Geomechanics...

...Lu Wang; Stephen T. Johnston; Nengsong Chen Abstract The Qilian block, one of the Precambrian terranes in the Qinling-Qilian-Kunlun orogenic system, is a critical region for reconstruction of the overall architecture and tectonic evolution of NW China. This investigation of zircon U-Pb and Lu-Hf...

..., and 15HT09) were conducted using a Finnigan MAT-262 thermal ionization mass spectrometer (TIMS) at Laboratory for Radiogenic Isotope Geochemistry, University of Science and Technology of China. Chemical separation and purification were completed by conventional ion-exchange techniques. About 100–150 mg...

... of North China, and it is divided into the North, Central, and South Qinling Terranes by the North and South Qinling suture zones ( Fig. 1B ). The North Qinling Ocean (= Erlangping backarc basin) was established before 540 Ma, which is interpreted by some as a branch of the Proto-Tethyan ocean (e.g., Dong...

... migrated together with the high seismicity. This suggestion will be supported by the use of Qo estimated from the intensity map as discussed later. CORRELATION BETWEEN CODA Q AND SEISMICITY IN CHINA 757 Qincjhai Delingha D D - I io o o°; N -r v O. M a I I I I I I I II [ I I I I I II I0 2 ]0 5 i0 -} i0 } t...