共查询到19条相似文献,搜索用时 218 毫秒
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铝土矿主要赋于石炭系本溪组中,在河南省西部分布较广,资源量较大。随着近年我国铝工业的快速发展,本地浅部及中深部的矿产资源已得到快速的开发和利用,为了缓解当前资源瓶颈的约束、保障经济社会持续发展,河南省西部煤层深部铝土矿床将是近期及未来主要勘查和开发的方向。 相似文献
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在龙州地区首次发现早石炭世的堆积型铝土矿矿源层,提出广西堆积型铝土矿至少存在早石炭世和晚二叠世两个时代的矿源层。探索运用高密度电阻率法寻找古风化壳沉积型铝土矿的有效性试验工作。提交新发现矿产地4处,探获新增铝土矿(3341)资源量5 289.15万吨。重新厘定区域地层岩性及岩相特征,系统总结区内铝土矿矿床(点)的时空分布特征、控矿地质条件、成矿规律及找矿标志,建立了区域成矿模式和预测找矿模型,圈定成矿远景区5处,找矿靶区6处,开展区域矿产预测,初步评价了本区铝土矿资源潜力。为该地区下一步地质调查、矿产勘查规划和开发提供了丰硕的基础资料和有益参考。 相似文献
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沉积型铝土矿是我国主要的铝土矿类型,经过几十年的开发,储采比逐渐下降,深部难动用资源的绿色开发迫在眉睫. 通过开展静态溶浸实验和电极加热仿真模拟,结合原位溶浸技术在铀矿和稀土矿开采中的成功经验,总结出该技术在固体矿产开采中应用的适用条件包括:矿物可溶性、矿体分布稳定性、顶底板条件、矿体渗透性. 我国北方铝土矿资源与以上条件切合程度高,适合采用原位溶浸技术进行开采. 本次研究还提出了沉积型铝土矿原位溶浸开采的工艺方案,为下一步开展先导试验提供了设计思路. 相似文献
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《矿产与地质》2020,(1)
以文山某沉积型铝土矿勘查为目的,采用音频大地电磁法(AMT),总体勾勒AMT测深针对沉积型铝土矿的勘查思路,详细阐述了AMT的数据处理手段。首先在该矿区已知地质剖面上进行了可行性试验研究,根据试验剖面的效果,结合矿区岩性地球物理特征及地质情况,建立了矿区地球物理找矿模型,进而在矿区布设了4条AMT测线。通过AMT测深剖面,并结合地质对深部沉积型铝土矿的富集部位进行了推测与空间定位。经钻孔验证,证实了沉积型铝土矿的存在及深部的延伸。结果表明:沉积型铝土矿相对围岩显示为低阻高极化特征。应用AMT测深,结合地质进行推断解释,能够有效探测沉积型铝土矿空间延伸情况。通过该应用与探讨为该区沉积型铝土矿勘查提供了思路和方法选择依据,为铝土矿勘查提供借鉴。 相似文献
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桃园铝土矿床位于贵州省务正道地区北部.为产于韩家店组或黄龙组古侵蚀面之上的一水硬铝石沉积型矿床,位于渝南-黔中铝土矿成矿带上.通过对桃园铝土矿区进行勘查研究,推测桃园向斜铝土矿古地理环境为浅水环境,其古地形地貌为南东高,北西低,且底部南北向分布有规模大小不一的岩溶洼地,结合铝土矿在低洼处形成富矿的基本特点,预测矿区向斜... 相似文献
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《International Geology Review》2012,54(6):503-544
Brazil is one of the world's major producers of metals (i.e., iron, gold, tantalum, columbium, aluminum, and tin). During the last decade, an acceleration of research and exploration in Brazil by federal and state agencies, universities, and private industry has produced a substantial body of new data. This progress largely is driven by governmental mapping and industry mineral exploration programs, and has resulted in the compilation of a new lithotectonic map and related maps on major mineral deposits and prospecting areas. These maps will make it considerably easier to understand the nature of mineral-deposit formation in Brazil and will assist in the development of mineral resources during the final years of this century. This paper surveys the mineral resource base of Brazil based on information obtained as a result of this recent acceleration of geological exploration, and also examines the problems confronting mineral exploration and development as a result of Brazil's enormous and diverse geology, population, and physical environment. The potential for adding to Brazil's identified mineral resource base in the near future, which is substantial, is explored. 相似文献
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东南亚地区矿产资源十分丰富,特别是铜、镍、铬、钾盐、铝土矿等矿产资源与中国有较强的互补性,受到中国地质学家和矿业界的广泛关注。东南亚地区总体矿产勘查、开发程度低,随着东南亚地区经济的快速发展和找矿技术方法的提高,该地区一大批新矿床的发现和一系列新矿山的陆续建成投产必将为全球经济发展和社会进步注入新的活力。通过对东南亚地区产出的大型-超大型或代表性重要矿床地质特征和分布规律进行总结,对其产出环境和找矿潜力进行讨论,旨在为中国地质学家、矿业企业了解该地区重要矿床的地质特征、时空分布规律、找矿潜力和找矿模型提供有益信息,为中国地勘单位和矿业企业"走出去",在东南亚地区开展综合性找矿评价提供参考依据,同时也为在中国西南三江成矿带开展勘查找矿工作提供对比依据。 相似文献
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几内亚矿产资源丰富,铝土矿储量居世界首位,拥有宁巴山和西芒杜两座世界级铁矿床,石墨、金、金刚石等矿产资源也较丰富。矿业在其国民经济中占有十分重要的地位,丰富的资源吸引了力拓、俄罗斯铝业等国际大型矿业公司和赢联盟、中国铝业集团、中国河南国际等中资矿企在几内亚从事矿业开发。中几两国友好交往源远流长,经济互利合作不断发展。中国是几内亚第一大铝土矿出口国,同时也是几内亚第二大进口来源国,据商务部统计,2019年我与几内亚双边贸易额同比增长17.6%。本文系统梳理了几内亚的地质概况、主要矿产资源、勘查开发现状,认为几内亚丰富的矿产资源与我国具有良好的资源互补性。双方矿业合作互利共赢,随着政府及企业在基础设施建设的投资不断增加,几内亚矿业投资前景良好,有望成为中国海外矿业新基地。 相似文献
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《International Geology Review》2012,54(10):900-906
The prospects for increased bauxite production in Central Asia is reviewed in the light of recent geologic findings. Characteristic features of the bauxites and other aluminum mineral deposits (alunite, diaspore, etc. ) are reviewed, and recommendations made for further exploration and prospecting. For more efficient prospecting and determination of reserves of bauxite ores it is recommended: 1) That exploration of the Carboniferous bauxite deposits in Alaysk-Turkestan region (Chumkartau, Dzhalair Vorukh) be continued. 2) That exploration of the Upper Triassic bauxite deposits (Kairak, Sanjar, Kundzhuaz) be initiated. 3) That the possibilities of bauxite production from a number of Mesozoic deposits (Kansay, Maylisuy, Kshtusk) in the Pskem-Ugam, North Fergana, and Zerayshan regions be investigated. 4) That intensive prospecting efforts be made in rocks of the Carbonfierous (Chumkartau, Dzhalair, East Ferghan), the Triassic (the Gissar Ridge, Darvaz, Pamirs), the Lower Jurassic (the Naryn, Zerayshan and other river basins), and the Lower Cretaceous (the Pskem Ridge). 5) That exploration and prospecting be initiated for other high-alumina ores, (alunite, diaspore, etc. ) at certain favorable areas (Gushsay, Kattasay, Karzhansay). — Auth. English Summ. 相似文献
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《International Geology Review》2012,54(11):1052-1061
The bauxite resource base for the aluminum industry of independent Russia is examined generally in terms of deposit geology and mineralogy, feasibility of processing based on conventional methods, world aluminum markets, and the general economic environment within Russia and the Commonwealth of Independent States. Plans to develop new mines and to expand existing mine production are examined critically in light of aluminum content and impurities in ores, physical conditions at deposits, and competing opportunities for potential outside investors. Important non-bauxite ore sources also are investigated to the extent they represent alternative sources of aluminum supply. Russia and the former USSR traditionally have had to rely either on supplemental bauxite imports or upon the development of its non-bauxite ore deposits. The future depletion of a Urals bauxite ore base in Russia is making it necessary for industry planners to assess the feasibility of developing the North Onega and Middle Timan monohydrate bauxite deposits and expanding imports from Guinea and elsewhere. 相似文献
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