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841.
阿塔卡玛盐湖的综合开发 总被引:4,自引:1,他引:3
近年来,智利阿塔卡玛盐湖的开发进展迅速。本文报道了阿塔卡玛盐湖的形成、资源、开发过程、主要技术路线、氯化钾和碳酸锂产品技术经济指标以及阿塔卡玛盐湖的开发前景。 相似文献
842.
L.V. Malinovskaja A.A. Filippov V.F. Osadchikh N.V. Aladin 《International Journal of Salt Lake Research》1998,7(3):211-233
Data on benthic macroinvertebrates of the northern Caspian Sea in 1980–1991 were collected by the Caspian Fishery Research
Institute. During the initial period of the water-level rise, the main trends in benthic macroinvertebrates were increases
in the biomass of the main groups and decreases in the relative abundance of species of Mediterranean origin. There was no
significant alteration in species composition. The increased abundance was due to improved trophic conditions and a decrease
in the numbers of benthos-feeding fish. Some decrease in the relative abundance of species of marine origin was related to
a decrease in water salinity. 相似文献
843.
对含胡浓缩盐卤在冷冻析出一般盐类进行研究结果表明,在从-10℃至-20℃范围内,析出高水合硫酸镁和氯化镁盐。尤其是硼酸镁盐。经化学分析,热分析粉晶衍射结果表明,从室温到-20.5℃范围内,不同时间放量析出同一种硼酸镁-三方硼镁石。 相似文献
844.
N.V. Aladin A.A. Filippov I.S. Plotnikov M.I. Orlova W.D. Williams 《International Journal of Salt Lake Research》1998,7(4):301-343
The construction of a dam between the Small and Large Aral Sea in 1993 has had an effect on biological communities. From field and laboratory investigations and analysis of the literature, the structure and function of the main plant and animal communities in the northern (Small) Aral Sea are described and discussed, first, for the period before 1985, and, second, between 1985 and 1994. A prognosis for future changes is provided. 相似文献
845.
实施“油盐(钾)兼探”是加速我国找钾工作的重要途径 总被引:1,自引:0,他引:1
从理论和实践阐述了油气和钾矿的共存关系和特点,指出在油气勘查中,实施“油盐(钾)兼探”,加强钾矿的综合找矿,是加速我国找钾工作的重要途径。 相似文献
846.
水力压裂法采盐对环境影响的环境地球化学研究 总被引:1,自引:0,他引:1
水力压裂法采盐对环境影响的环境地球化学研究向武鲍征宇(中国地质大学,武汉430074)关键词水采法盐渍环境盐矿污染我国现有矿山1万多座,为国家提供了80%的工业原料,同时也造成了较严重的环境危害。仅全国尾矿侵占和污染的土地就达667余万公顷,间接污... 相似文献
847.
In this paper we use a Von Mises transformation to study brine transport in porous media. The model involves mass balance
equations for fluid and salt, Darcy's law and an equation of state, relating the salt mass fraction to the fluid density.
Application of the Von Mises transformation recasts the model equations into a single nonlinear diffusion equation. A further
reduction is possible if the problem admits similarity. This yields a formulation in terms of a boundary value problem for
an ordinary differential equation which can be treated by semi‐analytical means. Three specific similarity problems are considered
in detail: (i) one‐dimensional, stable displacement of fresh water and brine in a porous column, (ii) flow of fresh water
along the surface of a salt rock, (iii) mixing of parallel layers of brine and fresh water.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
848.
849.
TAN Hongbing MA Haizhou XIAO Yingkai WEI Haizhen ZHANG Xiying & MA Wandong . Institute of Salt Lakes Chinese Academy of Sciences Xining China . Graduate School of the Chinese Academy of Sciences Beijing China 《中国科学D辑(英文版)》2005,48(11):1913-1920
The Tarim Basin, located in Xinjiang (Fig. 1), is the largest deposit basin with an area of about 560000 km2 in China. From late Triassic period to early Miocene, two huge subbasins developed, named the Kuqa sub-basin at the foot of the Tianshan Mountains in the north and the Shaqa subbasin at the foot of the Kunlun Mountains in the south of the Tarim Basin. During the late Cretaceous to early Tertiary period, the Paleo-me- diterranean seawater repetitively invaded into the Shaqa subbas… 相似文献
850.
Auzende Jean Marie Van de Beuque Sabrina Dickens Gerald François Caroline Lavoy Yves Voutay Olivier Exon Neville 《Marine Geophysical Researches》2000,21(6):579-587
A recent swath-bathymetry and geophysical survey of the R/V L'Atalante in the Fairway Basin between Australia and New Caledonia allowed to confirm the Cretaceous age of the creation of the basin by continental stretching. This first stage of opening of the Fairway Basin is associated with the deposition of a continuous salt/mud layer feeding today numerous diapirs, some of them piercing the 3 to 4 km thick sedimentary cover and reaching the seafloor. In close link with this salt/mud layer a Bottom Simulating Reflector indicator of gas hydrates level occupies a 70000 km2 surface at about 500 to 600 m-depth beneath the sea floor. The coexistence of both BSR and diapirs suggests a thermogenic better than biogenic origin for the gas hydrates horizon. 相似文献