介绍了一种以蓝晶石微粉和αAl2 O3 微粉为主要原料 ,一步煅烧法制备硅酸铝质高强陶瓷的工艺方法 ,并对制品的烧结性能、显微结构进行了分析。 (1)由该方法制得的硅酸铝质陶瓷 ,体积密度为 2 0 9～ 2 12 g/cm3 ,气孔率为 2 5 58%～ 2 8 54% ,常温耐压强度高达 180 87～ 315 30MPa ,在烧结过程中体积收缩率为 0 4 9%～ 2 73%。与传
In carboniferous and triassic metacarbonates (anchizone to lower greenschist facies) of the Tethyan Himalayas the characteristic remanent magnetisations are carried by magnetite (ChRM\-1) and pyrrhoti
The Eastern Himalayan Syntaxis (EHS) is one of the strongest deformation area along the Himalayan belt resulted from the collision between Indian plate and the Eurasian plate since 50～60Ma, and has se
The western boundary of the Eastern Himalayan Syntaxis (EHS) is a deformation belt up to 30km wide (Fig.1). Trending ca. N35°E, it separates the Gangdise magmatic belt in the west from the gneiss of E
Recently the (U\|Th)/He method on apatite has been applied to studies of cooling and exhumation in mountain belts in order to place constraints on the low temperature cooling history (Wolf et al., 199
The Chamba\|Bharmaur syncline located in between Zanskar range in the north and Dhauladhar\|Pirpanjal range in the south , in the Chamba district of Western Himachal Pradesh. The rocks constituting
New monazite U\|Pb geochronological data from the Everest region suggest that 20～25Ma elapsed between the initial India—Asia collision and kyanite\|sillimanite grade metamorphism. Our results indicate
The marine early\|middle Early Paleogene in the northern Tethys Himalayas was found in southern Tibet in mid 1980s (Hao and Wan, 1985), and the bio\|, litho\|, and chrono\| stratigraphy were patterned
The Eastern Sikkim area forming a part of the Lesser Himalaya is located between 27°10′～27°30′N latitudes and 88°25′～88°40′E longitudes (750km 2). The previous workers agreed that a domal structure i
A number of geological cross\|sections from the western Himalayan foothills are based on field,seismic reflection,and well data of the Oil & Natural Gas Corporation India.These cross\|sections have be