A5036132180- Geological formations and processes
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Climate change and permafrost
- Border Security and International Relations
- Seismology and Earthquake Studies
- Methane Hydrates and Related Phenomena
- Geotechnical Engineering and Soil Mechanics
- Geotechnical and Geomechanical Engineering
- Earthquake Detection and Analysis
Chinese Academy of Geological Sciences
2012-2022
Ministry of Natural Resources
2022
Abstract The Mesoproterozoic Wumishan Formation, composed of dolomite is a widely distributed stratigraphic unit in the Beijing area. It was formed over long period time Yan-Liao aulacogen, stable peritidal environment that ideal for recording earthquakes form soft-sediment deformation structures (SSDS). Numerous examples occur upper part along Yongding River Valley. In addition, brittle include intrastratal fault and seismically cracked breccias. liquefied features (diapirs, clastic dykes,...
Abstract The Mesoproterozoic Wumishan Formation consists mainly of dolomites that represent diagenetically transformed limestones deposited in a shallow peritidal environment. Although the environment was tectonically stable, study area Changping District (north Beijing area) affected by synsedimentary earthquakes. Later, were intruded granite. This resulted contact metamorphism dolomites, changing them halo around intrusion into marble. marble, which is exposed near Taoyukou Village, shows...
Ten well-preserved, earthquake-triggered liquefaction mounds and a carbonate sand volcano have been found in the Mesoproterozoic Wumishan Formation (1550–1400 Ma) Beijing area, North China. These features crop out roadcut near Zhuanghuwa Village. All ten occur same sedimentary layer rounded shapes with some concentric radial fissures arising from centre. They range 1.5 to 4 m diameter 10 cm 30 height. The has of 110 'crater' at top depth about cm. Associated these are many 'normal'...
Abstract. Continental scientific drilling can be regarded as a telescope into the Earth's interior because it provides process insight and uncompromised samples of rocks, fluids, even sampled from deep biosphere surface to great depths. As one three founding members International Scientific Drilling Program (ICDP), ICDP China has made achievements in many drilling-related research fields. Based on participation attracted global attention scientists set up not only Chinese (CCSD) 2001 but...
The Nihewan Basin is a rift basin at the junction of northern Shanxi Province and northwestern Hebei in north China. known for its rich paleontological fossils ancient human remains. There are also abundant soft-sediment deformation structures (SSDS) thick lacustrine sediments. Previously, most SSDS have been interpreted as ice-edge features or ignored entirely. Recently, authors carried out several field surveys found that many sandwiched between normal strata multiple sections. In...
Abstract A clastic dike containing unusually large clasts occurs in the Quaternary deposits that unconformably cover Mesoproterozoic sediments Fangshan District, Beijing area, China. The material into which intruded is also uncommon because it consists mainly of loess-type silts were deposited by braided rivers. intrusion explained as result expulsion pore water coarse, gravel-containing layers a river system. size an exceptionally strong upwards-directed flow owed its high energy to...
In recent years, the apparent seismic activity around Longmen Shan and its front has included Wenchuan (Ms8.0) Earthquake Lushan (Ms7.0) Earthquake, occurring in 2008 2013, respectively. Based on focal mechanism solution, rupture processes, intensity, surface deformation, aftershocks of active fault Shan, we divided into two tectonic deformation belts, thrust belt frontal propagation belt. By comparing differences styles, faults, earthquake histories propose kinds seismotectonic models: one...
The MS 8.0 Wenchuan earthquake of May 12, 2008, in the Longmen Shan mountain range area China, led to two roughly parallel NE-trending thrust and strike-slip surface ruptures Beichuan, Pengguan, Xiaoyudong faults. Coseismic deformation changed topographical gradient produced massive landslides debris flows, causing a corresponding response fluvial landforms. In this paper, based on data regarding changes topography drainage resulting from earthquake, influence thrusting strike-slipping...