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1.
河南省舞钢市下曹铁矿成因探讨   总被引:1,自引:0,他引:1  
河南省舞阳铁矿带位于华北大陆板块南缘,秦岭东西断褶带东段北侧,断裂构造发育,岩浆活动频繁。依据该区地质背景、成矿特征,对舞阳成矿区带下曹铁矿的成因进行了探讨,为进一步在该区开展铁矿找矿工作提供依据。  相似文献   

2.
双峰金矿带成矿条件优越,矿化分布普遍,已发现多个金矿床(点),是湘中地区找金的重要远景区。本文通过对双峰金矿带典型矿床成矿地质特征分析,总结了矿床的控矿因素和找矿标志,指出了双峰金矿带进一步找矿方向。  相似文献   

3.
桂西北地区灰岩周边的环形断裂构造形成了灰岩台地,同时也提供了含矿溶液的通道.灰岩台地和环台碎屑岩的岩性建造是含矿溶液富集的条件之一,碎屑岩中的蚀变压碎岩可以起到吸附金矿溶液和容矿的作用,是探寻桂西北地区金矿成矿的重要标志.文章介绍了桂西北地区金矿床的一般地质特征,分析了环台碎屑岩在桂西北地区金矿成矿模式以及找矿标志中的作用,从找矿和勘探的角度总结了环台碎屑岩在桂西北地区金矿成矿中的作用和意义.  相似文献   

4.
叶茂芳 《科技与企业》2013,(17):138-139
柘荣英山地区是福建省重要的银多金属成矿远景区之一,位于晚侏罗世闽东火山喷发亚带的北东段,具有良好的找矿前景。通过对矿区地质特征、矿体特征、矿石特征的分析,推断矿床成因;矿体受北西西向断裂和裂隙控制富集成矿,为中低温热液交代—充填型银矿床。  相似文献   

5.
通过对区内成矿地质背景及矿床特征的分析,阐述了本区处于华北地台南缘卢氏—栾川台缘断褶带内,秦岭纬向系构造带与北东向新华夏系构造带太行山隆起带的交汇复合部位;矿体产于新元古界栾川群煤容沟组、鱼库沟组的石英岩、二云片岩、白云石大理岩和下古生界陶湾群三岔口组、秋木沟组钙质砾岩、白云质石英大理岩等地层中,该区大地构造位置独特,地质构造复杂,岩浆活动频繁,围岩蚀变强烈、地球化学异常明显,形成了以Pb、Zn、Mo、Ag等为主的丰富的内生金属矿产,充分证明了该区成矿地质条件良好,找矿远景乐观。  相似文献   

6.
通过对区内成矿地质背景及矿床特征的分析,阐述了本区处于华北地台南缘卢氏-栾川台缘断褶带内,秦岭纬向系构造带与北东向新华夏系构造带太行山隆起带的交汇复合部位;矿体产于新元古界栾川群煤窑沟组、鱼库沟组的石英岩、二云片岩、白云石大理岩和下古生界陶湾群三岔口组、秋木沟组钙质砾岩、白云质石英大理岩等地层中:该区大地构造位置独特,地质构造复杂,岩浆活动频繁,围岩蚀变强烈、地球化学异常明显,形成了以Pb、Zn、Mo、Ag等为主的丰富的内生金属矿产,充分证明了该区成矿地质条件良好,找矿远景乐观.  相似文献   

7.
休宁县里广山地区化探异常及找矿潜力分析   总被引:1,自引:0,他引:1  
休宁县里广山地区区域上位于扬子陆块江南地块障公山隆起(障公山复背斜)北缘,夹于祁门断裂构造带和障公山韧性剪切带之间。区内地质构造复杂,经历了多期次构造活动,成矿地质条件优越,化探异常突出,1∶20万和1∶5万水系沉积物测量均显示有较好的Au、Sb、As、Sn等元素的综合异常,区内已发现多处锑、金矿床或矿(化)点,具有较好的找矿前景。本文重点从化探异常及成矿地质条件分析来探讨该地区的找矿潜力。  相似文献   

8.
本文通过对云南省某金矿多年的勘查工作实践和认识,结合以往金矿研究成果,阐述了该矿区带成矿地质条件,指出找矿方向,有助于今后地质勘查工作部署以及找矿与勘查研究并实现找矿突破.  相似文献   

9.
2009年地质勘查工作会上明确指出,必须加强深部找矿工作,以应用深部矿床成矿与找矿理论的突破和先进找矿方法技术为基础,努力实现深部找矿重大突破。近年来我院在大明山钨矿区南段那汉沟、北西段甘高一带开展了多项地质普查工作,在深部的斑岩体内及附近发现了多条合钨、铜石英矿脉。文章结合大明山钨区区域成矿地质背景、岩浆岩构造地质特征,对比癍岩型铜矿床的地质特征及成矿模式,认为大明山矿区外围那汉沟和甘高矿段的铜矿与燕山晚期石英斑岩、花岗斑岩具有成因联系,表现出斑岩型铜矿的特征。有利的地质条件及找矿信息显示本区有较好的找矿前景,通过新一轮的找矿工作,运用新的找矿方法,可望在本区找到大中型隐伏斑岩型铜矿床。  相似文献   

10.
江西赣南钨矿区位于南岭东西向构造带东段与武夷山北东-北北东向构造带南段的复合部位,是九龙脑-淘锡坑矿田的一个重要矿区.文章主要对该矿区的成矿地质进行了分析,指出地质特征与成矿规律,并对找矿前景进行了总结.  相似文献   

11.
张宇  陈凤雨 《价值工程》2014,(17):328-329
通过对从江污牙钨矿地质特征进行总结,认为钨矿体产于黑色蚀变岩体下部具有强烈层间揉皱的灰、深灰、灰黑色石英千枚岩中,摩天岭花岗岩侵入活动为钨矿形成提供了物质来源,其中含钨酸盐热液在变质岩中运移,当遇到其中的钙质成分时与其反应形成钨酸钙沉淀,后经蚀变改造,成矿物质进一步富集而形成,属变质热液型钨矿床。  相似文献   

12.
13.
Recent editions of this journal have entered into a debate over research agendas in the area of corporate environmental management. In this contribution to the debate, it is argued that research has to result in change if it is to be effective. Taking a postmodern perspective, it is argued that there is need for more emphasis on a critical research agenda. Responses to this article are encouraged for publication in future issues of Business Strategy and the Environment. © 1998 John Wiley & Sons, Ltd and ERP Environment.  相似文献   

14.
Abstract

Global staffing has been a key theme in research in IHRM for a number of decades. Our review confirms that it continues to be an important contemporary area of research in IHRM. In the current paper, we review three key contemporary issues in global staffing research, namely, the emergence of global talent management and potentially a more strategic approach to global mobility, specifically changing patterns of global mobility, and the emergence of the non-employees as key alternatives in the global staffing literature. The paper also charts a future research agenda in each of these areas.  相似文献   

15.
Re-innovation: The construct, measurement, and validation   总被引:1,自引:0,他引:1  
There has been substantial research in the area of innovation, which is widely regarded as a powerful weapon to create competitive advantage. One important reason of the substantial research in innovation is the presence of valid and reliable measures of key innovation characteristics, such as radical, incremental, or disruptiveness innovation. Re-innovation, an extension of innovation, is renowned for its potential in creating competitive advantage with reduced cost and time implications. Unfortunately, very little research in re-innovation has been conducted, possibly because to date it still lacks a psychometrically valid measure. There is also a lack of research on convergent and discriminant validities of the re-innovation construct, resulting in the impossibility to discriminate re-innovation characteristics from radical or incremental innovation characteristics. The purpose of this paper is to develop a valid and reliable scale for measuring the construct of re-innovation. To test its reliability and discriminant and convergent validities, we used data collected from 294 general managers of SBUs in 89 electronics-related companies in Taiwan and performed a series of analyses. The reliability measures, exploratory factor analyses, confirmatory factor analyses, and convergent and discriminant validity tests strongly support our scale. In addition, nomological validity is demonstrated. Hence, this study distinguishes the re-innovation from radical and incremental innovation constructs. Finally, discussion, limitations, and future research are presented.  相似文献   

16.
魏平堂 《价值工程》2014,(14):322-325
云南玉龙县地处"三江"成矿带中部,处于金沙江和澜沧江之间,该区矿床的成矿作用一直是成矿学和地球化学研究的热点。本文重点从化探异常及成矿地质条件来探讨云南玉龙县黎明铜多金属矿区的找矿潜力,圈定甲、乙类异常共15个,共发现铜矿(化)体3条。并在矿区东边的砂岩和砾岩裂隙及裂隙周围的岩层层理中发现热液型脉状铜银矿点31个,值得在今后的找矿中注意和参考。  相似文献   

17.
In this paper arguments are set forward explaining the interrelationship between the entry and exit decision. The simultaneous effect of entry and exit on profitability for some Belgian sectors is studied. The empirical results seem to suggest that future research in this area has to take into account the link between entry and exit.  相似文献   

18.
张裔可  黎应书 《价值工程》2014,(13):299-301
通过分析云南省个旧市东区老厂东地段锡铜铅矿区区域及矿床地质特征,确定了该矿床的成矿模式为岩浆期后热液矿床和接触带交代的矽卡岩型硫化物矿床,并分析出矿区矿化主要受断裂构造和深部隐伏有燕山期花岗岩、印支期变玄武岩控制。  相似文献   

19.
白强 《价值工程》2014,(24):307-308
祁漫塔格地区是青海省内重要的铁、多金属成矿带之一,被国家列为十大新的资源接替基地。区内铀矿化分布广泛,已发现铀矿(化)点3个,矿化信息点4个,铀化探异常多处。祁漫塔格地区具有如下铀成矿的有利条件:有利的成矿的大地构造环境、丰富的铀源条件、良好的成矿地质构造和充足的热源条件等。根据区域铀矿化的产出情况和有利的成矿地质条件分析,该区应为中生代花岗岩型-火山岩型铀矿的有利成矿区,预计今后在区内深入开展找铀工作的前景是良好的。  相似文献   

20.
Although business restructuring occurs frequently and it is important for the prosperity of family firms across generations, research on family firms has largely evolved separately from research on business restructuring. This is a missed opportunity, since the two domains are complementary, and understanding the context, process, content, and outcome dimensions is relevant to both research streams. We address this by examining the intersection between research on business restructuring and family firms to improve our knowledge of each area and inform future research. To achieve this goal, we review and organize research across different dimensions to create an integrative framework. Building on current research, we focus on 88 studies at the intersection of family firm and business restructuring research to develop a model that identifies research needs and suggests directions for future research.  相似文献   

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