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1.
该石灰岩矿床产于寒武系张夏组二段(C222)地层内。矿区出露主要有寒武系中统徐庄组、张夏组和寒武系上统固山组、长山组地层,地层岩性以灰岩为主。矿体呈似层状,根据矿区岩石类型及组合认为,辽宁省普兰店市磨盘山该矿床为化学或生物化学沉积矿床。  相似文献   

2.
张森 《中国科技博览》2012,(17):313-313
瓦房店磨盘山水泥石灰岩矿矿区位于辽宁省瓦房店市复州湾镇西北。地貌单元属构造剥蚀丘陵区,矿体呈似层状,产于寒武系张夏组二段地层中。根据参与该区域详查工作了解的知识,对该区域成矿地质条件进行概述,并对该区域的找矿标志进行探讨。  相似文献   

3.
彰武县东六家子一带地层主要为中生界侏罗一白垩系义县组(JKy)火山喷出岩、熔岩及火山沉积岩。膨润土矿赋存于义县组(JKy)上部的火山沉积碎屑岩中,为一个似层状矿体,属性为钙基膨润土。  相似文献   

4.
四川省峨边县杨河铅锌矿是以沉积为主叠加后期热液改造(富集)的碳酸盐型铅锌矿,三个矿体均呈似层状或透镜状大致顺层不连续地分布于寒武系下统麦地坪组(∈1m)中,产状和地层近于一致。本文介绍了杨河铅锌矿产出的区域地质背景和矿区地质概况,详细总结了矿区内矿体特征、矿石特征,以及围岩蚀变类型,并系统分析和归纳了各类找矿标志。  相似文献   

5.
马超 《中国科技博览》2014,(31):399-399
喀尔勇库勒铜、铅锌多金属矿位于西南天山北缘活动带,构造上处于塔里木板块之麦兹一阔克塔勒晚古生代陆缘盆地内,属天山山脉之西南段,南临塔里木盆地,北接托云盆地,天山山脉构成了工区的主体。矿体主要产于中泥盆统托格买提组地层中,其成因类型与区域上霍什布拉克层控型铅锌床矿较为相似,具有较好的找矿前景;矿区中的阿丘布拉克铜铅锌多金属矿点产于下白垩统克孜勒苏群地层中,与区域上托云盆地西缘形成的萨热克铜矿具有相同的地质背景和成矿条件,具有寻找砂岩型铜矿的找矿前景。  相似文献   

6.
广东省揭西县金坑铜锡铅锌矿区处粤东惠阳嗨县新华夏构造带之莲花山深大断裂带内。区内地层以侏罗系上统高基坪群酸性火山岩为主,主要构造线方向为北东向。主矿体呈脉状形成于NE向层间破碎带及NW向断裂构造中,矿体围绕区内燕山期花岗岩分布。初步研究认为矿床成因类型为岩浆期后热液裂隙充填(交代)型铜、锡、铅锌矿床,成矿时代为燕山期。矿床受地层、构造和岩浆岩综合控制,地质特征,分析矿床地质成因,总结成矿规律,提出找矿标志,为以后在粤东地区找矿工作提供依据。  相似文献   

7.
北衙金矿万硐山矿段成矿机制复杂,矿化类型多、矿种多,受断层(主要F11大断层)、矿化带、构造带及破碎带的影响主要矿体及次要矿体发生断层。通过对万硐山矿段内的金多金属矿化带内矿体(群)对比连接依据分析,主要岩金多金属矿体(KT52、KT48)及主要"红土型"金多金属矿体(KT4A)对比连接可靠程度研究。从而为确定下步矿山开采开拓方案和选择开采方法的提供重要依据。  相似文献   

8.
杨家杖子钼矿是辽西著名的钼矿床,开采历史比较悠久,其形成过程是中酸性侵入体(花岗岩)侵位于碳酸盐岩石或与之接触时,发生接触交代作用,先形成矽卡岩。接着发生的热液期钼矿化作用叠加在矽卡岩之上,这样便形成了热液型钼矿床。矿体的形态通常取决于接触带和矽卡岩的产状,多呈似层状、层状或透镜状产出。  相似文献   

9.
钒矿是近期地质勘查的主攻矿种之一,钒矿是北山裂谷最重要的成矿带。因此在该区确定主要的钒矿床成因模式,并在此基础上寻找成型、成规模的钒矿有重要意义。趴塔水钒矿为例,对该成矿带上的钒矿成因进行初步的研究。矿体赋存于下寒武系的含钒岩系中,地表呈脉状,空间形态呈层状、似层状产出,与围岩产状基本一致,且与围岩呈同步扭曲,表明矿床系海进层序下形成的一套浅海-滨海相沉积型钒矿。  相似文献   

10.
刍议敖包山铅锌矿区地质特征及找矿标志   总被引:1,自引:0,他引:1  
敖包山铅锌矿区位于华北陆块北缘,大兴安岭山脉南西端,突泉-林西华力西燕山期铁(锡)铜、铅、锌、银、铌(钽)成矿带东段,已发现有敖包山、大孤山、双山子、余家窝铺等矿几处矿床。以余家窝铺铅锌矿区为例,区域火山构造为敖包梁破火山机构南东缘小营子火山基底凸起。区内断裂构造较发育。最主要的断裂为少朗河大断裂及其两侧的次级断裂和派生的配套断裂。根据矿区地质特征,初步认为余家窝铺铅锌矿的成因类型为燕山晚期接触交代-岩浆热液复合矿床。本区的主要控矿因素为断裂破碎带,包括裂隙密集带,尤其是近东西向和北西向者。受前者控制的矿体,沿走向和倾向延伸一般较大,受后者控制的矿体走向延伸不及前者,但常常在局部出现较厚大的矿体。最重要的找矿标志为蚀变破碎带,地表表现为褐铁矿化带。褐铁矿化越强,找到矿体的可能性越大,尤其以近东西向和北西向者为最好。  相似文献   

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12.
通过优化微波消解条件,并根据不同元素性质,调谐ICP-AES工作条件至最佳,实现了茶叶中K、Na、P、S以及Fe、Mn、Cu、Zn、Ca、Mg 10种元素的同时测定。10种元素测定结果 RSD%为0.67(Cu)~5.57(Na),回收率为84.0%(Na)~101.5%(Fe),检出限为0.001(Mn)~0.029(S)μg·g-1,表明该方法准确可靠,能够满足茶叶中K、Na、P、S、Fe、Mn、Cu、Zn、Ca、Mg分析要求。  相似文献   

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14.
Experimentally determined p,V,T data are reported for toluene, trichloromethane, dichloromethane, acetonitrile, aniline, and n-dodecane at 278, 288, 298, 313, and 323 K, except for dichloromethane, for which the highest temperature was 298 K. At each temperature, measurements were done at pressures up to about 280 MPa or (for aniline and n-dodecane) at a lower pressure slightly below the freezing pressure at the temperature of measurement. Values of the isobaric expansivity isothermal compressibility and (for toluene, trichloromethane, dichloromethane, and acetonitrile) internal pressure, derived from the p,V,T data, are presented.  相似文献   

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16.
Infrared optical constants collected from the literature are tabulated. The data for the noble metals and Al, Pb, and W can be reasonably fit using the Drude model. It is shown that -epsilon1(omega) = epsilon2(omega) approximately omega(2)(p)/(2omega(2)(tau)) at the damping frequency omega = omega(tau). Also -epsilon1(omega(tau)) approximately - (1/2) epsilon1(0), where the plasma frequency is omega(p).  相似文献   

17.
我所2001年9月份顺利地通过了中国实验室认可委紧张而严格的评审,得到了权威机构认可,成为西南地区较早通过国家实验室认可的省级计量校准机构.在建立质量体系、运行质量体系走过了艰辛之路,我们将全所职工的艰辛之路介绍给大家,希望能给将要申请认可的实验室得以参考.  相似文献   

18.
This review compiles various nanostructures fabricated by a distinct “dry autoclaving” approach, where the chemical reactions are carried out without solvents; above the dissociation temperature of the chemical precursor(s) at elevated temperature in a closed reactor. The diversity to fabricate carbides (SiC, Mo2C, WC), oxides (VOx‐C, ZnO, Eu2O3, Fe3O4, MoO2), hexaborides (LaB6, CeB6, NdB6, SmB6, EuB6, GdB6), nitrides (TiN, NbN, TaN), phosphides (PtP2, WP), sulfides (ZnS, FeS/C, SnS/C, WS2, WS2/C), and selenides (Zn1‐xMnxSe/C, Cd1‐xMnxSe/C), with various shapes and sizes is accounted with plausible applications. This unique single‐step, solvent‐free synthetic process opens up a new route in the growing nanomaterials science; owing to its considerable advantages on the existing approaches.  相似文献   

19.
X-Ray Rietveld refinements were conducted on a series of eleven lanthanide phases, Sr2RGaCu2Oy (2112 phase, R = Pr, Nd, Sm, Eu, Gd, Dy, Ho, Y, Er, Tm, and Yb) that are structurally related to the high Tc superconductor Ba2YCu3O7 (213). In the 2112 structure, instead of square planar Cu-O chains, tetrahedral GaO4 chains were found to run in a zig-zag fashion along the diagonal of the basal 213 ab-direction. Reference powder patterns for these compounds were prepared by using the Rietveld decomposition technique. The unit cell volume of these compounds follows the expected trend of the lanthanide contraction. The lattice parameters range from a = 22.9694(3) Å, b = 5.5587(2) Å, and c = 5.44743(7) Å for R = Pr, to a = 22.8059(2) Å, b = 5.46031(5) Å, and c = 5.37773(5) Å for R = Yb. An electon diffraction study of the Sm- and Er-analogs showed characteristic diffuse streaks along the b-axis, suggesting some disorder within the GaO4 chains.  相似文献   

20.
Standards IGRS:First Complete International Standards System in 3C Collaboration Field After ISO and IEC released three international standards of Intelligent Grouping and Resource Sharing (IGRS) including Core Protocol,File Communication Framework and Device Validation,four standards of IGRS,Application Framework,Basic Application,Service Types and Devices Types,got approved with high passing rate in the voting of Final Draft International Standard (FDIS) and will be officially issued soon around the world. It symbolizes that all  相似文献   

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