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| 1 | SOME RESULTS OF BOUNDARY PROBLEM OF NON-NEWTONIAN FLUIDS显示文摘SOMERESULTSOFBOUNDARYPROBLEMOFNON-NEWTONIANFLUIDSSHIXiaoding(InstituteofSystemsScience,AcademiaSinica,Beijing100080,China)SOM... | SHI Xiaoding(Institute of Systems Science, Academia Sinica, Beijing 100080, China) | 1996 | Systems Science and Mathematical Sciences1996，9，2： | 7 |
| 2 | Rheology of the lower crust beneath the northern part of North China: Inferences from lower crustal xenoliths from Hannuoba basalts, Hebei Province, China显示文摘Lower crustal xenoliths brought up rapidly by basaltic magma onto the earth surface may provide di-rect information on the lower crust. The main purpose of this research is to gain an insight into the rheology of the lower crust through the detailed study of lower crustal xenoliths collected from the Hannuoba basalt, North China. The lower crustal xenoliths in this area consist mainly of two pyroxene granulite, garnet granulite, and light-colored granulite, with a few exception of felsic granulite. The equilibration temperature and pressure of these xenoliths are estimated by using geothermometers and geobarometers suitable for lower crustal xenoliths. The obtained results show that the equilibration temperature of these xenoliths is within the range of 785―900℃, and the equilibrium pressure is within the range of 0.8―1.2 GPa, corresponding to a depth range of 28―42 km. These results have been used to modify the previously constructed lower crust-upper mantle geotherm for the studied area. The dif-ferential stress during the deformation process of the lower crustal xenoliths is estimated by using recrystallized grain-size paleo-piezometer to be in the range of 14―20 MPa. Comparing the available steady state flow laws for lower crustal rocks, it is confirmed that the flow law proposed by Wilks et al. in 1990 is applicable to the lower crustal xenoliths studied in this paper. The strain rate of the lower crust estimated by using this flow law is within the range of 10-13―10-11 s-1, higher than the strain rate of the upper mantle estimated previously for the studied area (10-17―10-13 s-1); the equivalent viscosity is estimated to be within the range of 1017―1019Pa·s, lower than that of the upper mantle (1019―1021 Pa·s). The constructed rheological profiles of the lower crust indicate that the differential stress shows no significant linear relation with depth, while the strain rate increases with depth and equivalent vis-cosity decrease with depth. The results support the viewpoint of weak lower continental crust. | CHEN XiaoDe LIN ChuanYong SHI LanBin | 2007 | Science China Earth Sciences2007，50，8： | 6 |
| 3 | Characteristics and origin of mafic and ultramafic xenoliths in trachyandesite lavas from Heikongshan volcano,Tengchong,Yunnan Province,China显示文摘The trachyandesite lavas from Heikongshan volcano of the Tengchong volcanic cluster, Yunnan Province contain relatively abundant mafic and ultramafic small xenoliths comprising mainly gabbro, pyroxenite and rare lherzolites, all less than 2.5 cm in size. Gabbro xenoliths are characterized by 'open' texture represented by relatively abundant vesicles and ground-mass fillings, while pyroxenite xenoliths are characterized by equigranular and poikilitic texture. Their mineral compositions (clinopyroxene ± orthopyroxene ± plagioclase) are similar to those of phenocrysts in lavas, and their equilibration temperature (1000-1125°C) is consistent with the crystallization temperature of the phenocrysts (998-1108°C). Thus, the textures and compositions of these xenoliths are different from those of lower crustal and mantle xenoliths, and were derived from the magma chamber. Among them, the gabbroic xenoliths come from the crystal-bubble-liquid zone at the top of the magma reservoir, while the pyroxenite xenoliths come from the cumulates in the bottom of magma reservoir. The studied single lherzolite xenolith with porphyroclastic texture has similar mineral compositions to the mantle xenoliths from eastern China, and is considered to be of upper mantle origin. It was brought into magma reservoir by replenishment magma, and might have experienced a cooling event before eruption. The formation of xenoliths in trachyandesite flows largely reflects the ascent, storage, evolution and eruption processes of magma. | YU HongMei, LIN ChuanYong, SHI LanBin, XU JianDong & CHEN XiaoDe Institute of Geology, China Earthquake Administration, Beijing 100029, China | 2010 | Science China Earth Sciences2010，53，9： | 5 |
| 4 | Viscous Shock Wave and Boundary Layer Solution to an Inflow Problem for Compressible Viscous Gas显示文摘 | Feimin Huang Akitaka Matsumura Xiaoding Shi | 2003 | Communications in Mathematical Physics (-)2003，，1： | 1 |
| 5 | Viscous shock wave and buondary layer solution to an inflow problem for compressible viscous gas显示文摘 | HUANG Feimin MATSUMURA A SHI Xiaoding | 2003 | Commun Math Phys2003，239，： | 1 |
| 6 | On the stability of contact discontinuity for compressible navier-stokes equation with free boundary显示文摘 | HUANG Feimin MATSUMURA A SHI Xiaoding | 2004 | Osaka J Math2004，41，： | 1 |
| 7 | Viscous shock wave and boundary layer solution to an inflow problem for compressible viscous gas显示文摘 | Huang Feimin Matsumura A Shi Xiaoding | 2003 | Com-mun Math Phys2003，239，： | 1 |
| 8 | Viscous Shock Wave and Boundary Layer Solution to an Inflow Problem for Compressible Viscous Gas显示文摘 | Feimin Huang Akitaka Matsumura Xiaoding Shi | 2003 | Communications in Mathematical Physics (-)2003，，1： | 1 |
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