黑宝山─木耳气煤盆地含煤建造的垂向层序与旋回特征     

王喜臣  白昶生 《黑龙江地质》1992,3(4):32-37

  相似文献   

结构计算的地震荷载模型     

д.  ВМ 李锟 《世界地震工程》1989,(1):50-52,58

  相似文献   

高频VLBI观测射电源的结构     

田文武  张海燕等 《云南天文台台刊》2001,(2):1-9

高频VLBI观测揭示出河外射电源在pc或者亚pc尺度上大都有核-喷流的内部结构，尤其是对平谱致密射电源中毫角秒尺度的子源，能以相当高的概率观测到它的视超光速现象。多频观测可监测到一些新喷流子源的出现，特别在射电激变源中这些新喷流子源的出现与宽带内（从光学到γ射线）的爆发相关。且得到的一些源的核区谱指数分布，为确认源的VLBI核提供了支持。  相似文献   

维护农民合法权益促进农民增加收入     

杨任远 《江苏国土资源》2002,(2):5-7

国土资源部门是涉农部门。土地是农民的命根子，为“三农”服务特别是维护农民土地权益、促进农民增收，是国土资源部门义不容辞的职责。回顾总结了近年来这方面的工作，指出了今后一个时期国土资源部门为“三农”服务的方向。  相似文献   

巴西巴伊亚州Iramaia图幅地球化学勘探寻找钒和铬     

Dep.  FCF 李岩 《中国地震》1993,(3):55-60

  相似文献   

黄海在海洋生态系污染／环境特征及其生态应的监测和研究     

佘军 《黄渤海海洋》1993,11(3):60-69

  相似文献   

Comparison of Taste Components between Triploid and Diploid Oyster     

LINHong WANGXiaoxue ZHANGBin TANGHaiqing XUEChanghu XUJiachao 《青岛海洋大学学报(英文版)》2002,1(1):55-58

The main taste components of triploid and diploid oyster (Crassostrea gigas) were compared. Free amino acids, inosine monophosphate, succinate, trimethylamine oxide and betaine in fresh and boiled extractives were analyzed. The protein, lipids, glycogen, moisture and ash, which may affect the flavour, were evaluated. In boiled extractives, the amino acids were 394.1 mg(100g)^-1 in diploid and 183.5 mg(100g)^-1 in triploid. However, in fresh oyster extractives, they were 320.0 mg(100g)^-1 and 147.3 mg(100g)^-1 respectively. The inosine monophosphate in triploid was 44% more than that in diploid, and a little difference existed in the content of trimethylamine oxide between them. The contents of these taste components were the basis for taste flavour pattern determination.  相似文献   

中国海洋倾废历史与管理现状     

张和庆 《广东海洋大学学报》2003,23(5):15-23

介绍了我国海洋倾废的历史、发展过程和管理现状 ,分析了海洋倾倒的现状和面临的困难。文章还提出通过高新技术把疏浚泥迅速转化为再生资源进行利用和污染土无害化处理技术 ,从根本上减少疏浚泥海洋倾倒的数量和缓减海洋倾倒区紧张的状况 ,减少对海洋环境的污染  相似文献   

Mantle processes during ocean formation：Petrologic records in peridotites from the Alpine－Apennine ophiolites     

GiovanniB.Piccardo 《《幕》》2003,26(3):193-199

Mantle peridotites were early exposed at the sea-floor of the Jurassic Tethys derived from the subcontinental mantle of the Europe-Adria system. During continental rifting and oceanic spreading, these lithospheric peri-dotites were percolated via diffuse reactive porous flowby melt fractions produced by near-fractional melting of the upwelling asthenosphere. Ascending melts inter-acted with the lower lithosphere, dissolving pyroxenes and precipitating olivine, and crystallized at shallower levels in the mantle column causing melt impregnation.Subsequent focused porous flow formed replacive dunitechannels, cutting the impregnated oeridotites, which were conduits for upward migration of MORB-type liq-uids. Melt migration produced depletionlrefertilization and significant heating of the percolatedlimpregnated mantle, i.e the thermochemical erosion of the litho-sphere. Impregnated and thermally modified lithos-pheric mantle was cooled by conductive heat loss dur-ing progressive lithosphere thinning and was intrudeaby MORB magmas, which formed Mg-rich and Fe-richgabbroic dykes and bodies. Alpine-Apennine ophiolitic peridotites record the deep-seated migration of melts which changed their compositions and dynamics during the rift evolution. The thermochemical erosion of the lithospheric mantle by the ascending asthenospheric melts, which induces significant compositional and rhe-ological changes in the lower lithosphere, is a major process in the evolution of the continent-ocean transi-tion towards a slow spreading oceanic system.  相似文献   

稳健克立格及其在1：5万地球化学异常圈定方面的应用     

孟宪伟 《物探化探计算技术》1994,16(1):72-76

  相似文献