黔北务正道铝土矿矿体特征及找矿前景——以务川大竹园铝土矿床为例

以黔北务川大竹园铝土矿床为例,对其矿体厚度、矿石品位沿走向和倾向变化特征进行分析,以探寻此类矿床应如何实现找矿突破。通过大量资料分析认为,就黔北务正道铝土矿进行勘查而言,与务川大竹园铝土矿床矿体沿走向、倾向变化特征进行类比,其找矿前景较为理想。     

试论黔北铝土矿遵义成矿带地质特征与控矿因素

遵义成矿带是黔北铝土矿的重要成矿带之一.文章在遵义成矿带大量勘查研究成果的基础上,结合笔者近年来在该成矿带上的野外调查资料,对该成矿带铝土矿地质特征和控矿因素进行了论述与探讨.     

贵州燕子岩铝土矿地质特征及矿床成因研究

贵州省道真县燕子岩铝土矿是渝南—黔北铝土矿成矿区的组成部分之一。文章从地层岩性、构造、含矿岩系、矿体特征、矿石质量、围岩蚀变等方面研究了燕子岩铝土矿的地质特征,研究表明燕子岩铝土矿是一个品位不高、厚度不大的中型铝土矿矿床,沿走向及倾向双向挠曲是它的一大特色。并进一步对其成矿原因进行了探讨,研究表明包含燕子岩铝土矿在内的整个渝南—黔北铝土矿为中二叠统梁山期产于页岩、灰岩古风化壳侵蚀面上的沉积型铝土矿。     

贵州探明10年来最大铝土矿

贵州省地矿局在务正道地区铝土矿勘查取得重大进展,先后开展了大竹园铝土矿勘探、大塘铝土矿和隆兴铝土矿勘查、岩风阡铝土矿详查等工作,在整个勘查区共查明铝土矿资源量超过亿吨。其中大竹园矿区勘探工作新增资源量2600万t,探明资源量近6000万t,这大型矿床规模,是近10年贵州省探明的最大的铝土矿矿床,     

豫西煤系地层钻探快速成孔工艺研究

河南省是我国重要的铝土矿资源和铝工业大省,铝土矿主要分布在豫西地区,铝土矿、氧化铝和电解铝的产量在全国占举足轻重的地位,豫西地区铝土矿与煤系地层关系密切。本文通过资料收集、野外调查及研究、钻孔施工、钻探参数的采集统计对比分析和优化,探索研究豫西地区煤系地层钻探快速成孔施工工艺。以期为后续铝土矿勘查提供借鉴,达到提高找矿成果的目的。     

河南陕县—渑池—新安地区深部铝土矿地质特征及找矿方向

陕县—渑池—新安一带是豫西地区最重要的铝土矿生产勘查基地,自西向东,可进一步分为七里沟—焦地铝土矿带(西矿带)、杜家沟—郁山铝土矿带(中矿带)和张窑院—下冶铝土矿带(东矿带)。文章阐述了深部铝土矿体的特征,特别是深部矿体的化学成分变化规律。总结了找矿标志,提出了8个中深部找矿靶区。     

EH4在河南北冶隐伏铝土矿床定位预测中的应用

北冶铝土矿为隐伏沉积型铝土矿,周边仅有的地表或浅层铝土矿几乎开发殆尽,在此开展隐伏铝土矿的物探方法试验研究对今后勘查工作具有重要的指导意义。文章介绍了北冶矿区的地质概况和地球物理特征及EH4音频大地电磁测深的基本工作方法,重点介绍了EH4音频大地电磁测深法在北冶矿区铝土矿勘查工作中的应用效果,通过异常解译,划分出了石炭系本溪组含矿岩系与上覆地层及下伏地层之间的地层界面,反映了地层界面的起伏形态,从而间接推断出隐伏铝土矿的赋存状态及空间分布,圈出了含矿有利部位。经后期钻探验证,找矿效果突出。     

铝土矿地质特征及成矿条件研究

<正>引言矿产资源种类非常丰富的,而铝土矿是其重要组成部分,也是社会经济发展需要的重要物质资料。从铝土矿分布范围而言,主要在中国、印度、巴西等国家储量巨大^[1]。然而,我国铝土矿资源和其他国家有着明显部分,虽然储量丰富,但是可供开采及利用的并不多,加上国民经济对铝土矿资源需求大,只有对现有开采过或者探明位置的铝土矿地质特征及成矿条件进行深度探究,才能为后续铝土矿找矿及开采作业的地质勘查提供有效帮助^[2]。     

黔东南凯里—黄平地区古喀斯特地貌特征及其对铝土矿成矿的控制

凯里—黄平地区铝土矿床位于扬子准地台与华南褶皱带的交接地带,属于黔北台隆遵义断拱的贵阳复杂构造变形区,赋矿层位为中二叠统梁山组。通过搜集大量的工程数据,利用Surfer软件分析铝土物质沉积时的古喀斯特地貌,统计赋存于不同地貌的典型矿体特征,发现古喀斯特与铝土矿体规模、形态及矿石质量关系密切。据此,笔者研究了古喀斯特对铝土矿成矿的控制作用,认为其对于铝土物质的形成、沉积保存以及铝土矿的次生富集均起着重要的作用。     

谈河南中石炭世铝土矿成矿系统的控制因素

简要介绍了成矿系统的概念,针对豫西中石炭世铝土矿成矿系统的控制因素,从风化作用、沉积作用、地形地貌、水文条件等方面进行了论述,以保证铝土矿的稳定供应,提高地质勘查的成功率。     

Building,Thinking, and Politics: Mies,Heidegger, and the Nazis

The Djoser funerary complex was meant to be a house for a god and a metaphor for the sky. Today, it is usually understood that this original work of classical architecture is a vacant house of stone “from which the gods have fled.”

This difference does not have to be understood as a further sign of an irrecoverable loss of meaning. It is a historical doubling of meaning, or a duplicity. This article explores the duplicity of meaning of the Djoser complex by comparing references to architecture in the Pyramid Texts with texts of contemporary criticism, in particular, “The Pit and the Pyramid” by Jacques Derrida.     

Browsing, Bouncing, Murdering, and Mooring

This paper presents the theoretical context and results of an advanced research seminar, Visualizing Information in Space, Time, and Motion , that explores the production of space with respect to the spatial inhabitation of our built environment, strategies of representation, and the research, analysis, synthesis, and construction of notation communicating perceived aspects of space, time, and motion.     

山水城林，南京

仲德崐：《中外建渤杂志每一期围绕一个城市做一个主题,以座谈的形式谈论城市、谈论建筑、谈论文化,我是受杂志社的委托来召开这次关于我们南京城市的论坛。今天我们论坛的主题是“山水城林,南京论建”,“建”非宝剑的“剑”,而是建设的“建”,如果是宝剑的“剑”,那么就有武林大会的意思了。我们请了南京各领域的专家,有规划方面、建筑方面、风景园林方面,还有一些不可缺少的文化人。我始终有一个观点,认为一个城市的建设绝对不仅仅是建设一个物质环境,而是一个文化的氛围。我记得沙里宁曾经讲过一句话,“让我看看你的城市,我就知道这个城市的人民在追求着什么”。     

Continuity,Criticality, and Change

Abstract

This article reconsiders a joint seminar and studio that studied how an expanded vision of site and culture influences architectural production. The Barnes Foundation controversy provided a vehicle for this study. The Barnes is a private, world-renowned collection of art situated in an unlikely suburban Philadelphia neighborhood. Arguing that its current home was untenable, in 2002 the foundation announced plans to relocate—a move that runs counter to its founding charter, which bars any change to the collection, its content, or its location. Against a background of continued public protest and legal appeals, the Barnes decision prompts myriad vexing questions that are valuable for consideration in architectural education. Chief among these: is replication a valid, meaningful, or sufficient way to preserve cultural value, and if so, how?     

空间·感知·想象

<正>1入口:山与墙那日下午,在微园的对谈,李兴钢议及微园的入口山面,语多赞誉,立面两幅山墙,在几组卧石之后,一高一低,一黑一白,李兴钢以为,卧石虽巨,尚不足以形成山势,背景中的黑白两幅坡顶山面,为微园的建筑外观,勾勒出城市视角的山形背景。沿着这条山墙如山的如画观法,我大致还能接续—葛明以青砖履面的山墙,高耸而色深,以粉壁而白的山面,低缓而色浅,葛明利用砖墙包裹的空腔,使得南部高深的山面,稍凸于北部的远白山面,若按从城市进入微园的常规视     

Landscapes, tourism, and conservation

One key aspect of global change is a decrease in ecological integrity as more and more landscapes are developed, leaving a mosaic of intact refuges and degraded patches that may not be sufficient for conserving biodiversity. While increases in human population and shifts in the distribution of people affect land use, the temporary movement of people can have major implications for conservation and biodiversity. Three examples are presented where recreation/tourism can enhance the conservation of land on a landscape scale, leading to habitat protection and biodiversity preservation: (1) Shorebirds often require a matrix of different habitat types during migratory stopovers, and ecotourism can serve as a catalyst for landscape scale protection of habitat. (2) Riparian habitats can serve as corridors to link diverse habitat patches, as well as serving as biodiversity hotspots. (3) Remediation and rehabilitation of contaminated lands, such as those of the US Department of Energy, aimed at developing recreational activities on the uncontaminated portions, can be the most economical form of re-development with no increase in human or ecological risk. Since large areas on many DOE sites have been undisturbed since the Second World War, when they were acquired, they contain unique or valuable ecosystems that serve an important role within their regional landscapes. In all three cases the judicious development of recreational/tourist interests can encourage both the conservation of habitats and the wise management of habitats on a landscape scale. While some species or habitats are too fragile for sustained tourism, many can be managed so that species, ecosystems and ecotourists flourish. By contributing to the economic base of regions, ecotourists/recreationists can influence the protection of land and biodiversity on a landscape scale, contributing to ecosystem management. The human dimensions of land preservation and biodiversity protection are key to long-term sustainability, and ecotourists/recreationists can be one management option.     

自然、保护与土地

半年前带学生苏州实习,有机会再次到城西北的虎丘,据说在远古时代原本是海湾中时隐时现的孤丘,称海涌山,经历代持久地营建而成名胜。过山门海涌流晖、大吴胜壤,经拥翠山庄、憨憨泉,过流纹岩的千人坐和白莲池,沿剑池风壑云泉上双井桥,到隐喻海浪如雪的雪浪亭后登顶见云岩寺塔,30 m高的小山竟迂回曲折,气象磅礴,穿越了春秋至今2000年的时光,让人由衷赞叹人工之美入天然的风景魅力。