地球物理方法和地球化学分析在酸性矿坑水测图中的综合运用：典型案例研究     

本森  AK  韩如 《国土资源信息化》1997,(7):14-17

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计算机在化学分析研究和数学中的应用     

朱玉蘅 《矿物岩石》1989,9(1):100-106

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新疆库布苏金矿化带矿物标型特征研究   总被引：3，自引：0，他引：3  

张京俊 《华北地质矿产杂志》1997,12(4):347-357

论文在简述了金矿化地质的前提下，利用电子探针测试，化学分析，热发光分析，红外分析，热电系数测试，包裹体均一温度和爆裂温度及其成分测试等技术手段，应用相似一类比原则，分析总结出了石英，自然金，黄铁矿等的找矿，预测矿物标型及指示该矿化带成因的矿物标型。并结合地质特征，得出该矿化带金仍有潜力，其成因为同火山岩有关的变质热液成矿，并且经历了至少两个阶段的矿化作用。  相似文献   

汝城罗泉矿泉水生成机理探讨     

王小清  陈带花  欧任文  刘珍奇 《国土资源导刊(湖南)》2016,(1):44-49

罗泉矿泉水水源地位于汝城县暖水镇罗泉村,含水层为泥盆系上统锡矿山组和石炭系下统岩关阶碳酸盐岩层。矿泉取水深度为356 m(静水位高出地面3.65 m),最大涌水量6479.9 m~3/d。水质评定为含锶、偏硅酸的重碳酸—钠·钙型矿泉水。通过对水源地的地形地貌、地质构造、地层岩性、水文地质条件等区域地质环境条件和地球化学分析,认为矿泉水是砂砾石层风化溶解、锶硅离子交替吸附的结果,其主要补给为东南边山前断裂带泥盆系灰岩水侧向补给,以及上覆潜水越流补给等共同作用而形成。开采实践证明,锶(Sr)含量随着开采时间的推移总体呈下降趋势,偏硅酸(H_2SiO_3)含量基本稳定。该矿泉水为适合饮用的低钠、高热优质天然矿泉水。  相似文献   

黑龙江省穆棱沸石矿田矿石矿物特征及物化性能分析   总被引：5，自引：0，他引：5       下载免费PDF全文

孙树文刘红梅  徐旃章胡文瑄 《地质与勘探》2003,39(2):40-45

综合应用显微观测、化学分析和物化检测手段，对黑龙江省穆棱沸石矿床沸石岩进行了系统研究，确定其矿物组成主要为斜发沸石和丝光沸石，二可单独产出，也可形成混合型矿石。该矿石在成分上属高硅型沸石，SiO2／Al2O3比值均大于8，有富元素As、Pb等较低。物化性能测试表明，穆棱沸石矿为高品级沸石矿，矿石平均热失重值达12．8％，NH4^ 交换容量为146．10meq/100g^,K^ 交换容量平均9．58mmol/100g，丝光沸石热稳定性可稳定至800℃-900℃，具有良好的开发应用前景。  相似文献   

云南老王寨金矿田元素地球化学特征   总被引：4，自引：0，他引：4  

何平  何明友  刘峰  毛世德  王峰 《矿物岩石地球化学通报》2003,22(3):224-227

采用化学分析与中子活化方法测试了云南老王寨金矿田内的玄武岩类、煌斑岩类和花岗岩类及蚀变岩石、矿化岩石样品的常量元素、微量元素及稀土元素组成，并利用元素地球化学研究方法对其进行相关研究。结果表明，该分析方法有助于判别构造—岩浆岩来源及确定富金岩体。  相似文献   

我所分析测试工作的回顾与展望     

李祥云 《南海研究与开发》1989,(1):94-96

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沅江辰溪地区河流碎屑石榴子石地球化学特征及其对湖南原生金刚石找矿的启示     

马瑛  丘志力  邓小芹  陆太进  杨瀚  庄郁晴 《岩石矿物学杂志》2021,40(6):1116-1130

湖南沅江是我国砂矿金刚石的重要产地,石榴子石和金刚石是砂矿中常见的重矿物,与金刚石相关的石榴子石特征研究,对揭示湖南砂矿金刚石的来源与形成条件有重要意义。本文随机选取湖南沅江辰溪地区金刚石砂矿中160粒碎屑石榴子石和5粒金刚石包裹体中的石榴子石,采用矿物学、地球化学并借鉴统计学方法对它们进行了分析比较。结果显示,碎屑石榴子石主要为铁铝-锰铝榴石系列,其中个别石榴子石含有金刚石包裹体。聚类分析、线性判别、逻辑回归分析计算显示,部分G3榴辉岩型石榴子石与金刚石可能具有成生联系。同时,两个采集地点的石榴子石类型、主微量元素具有一定的差异,其中一个地点的石榴子石样品DJZ-7-1具有与金刚石更强的亲缘性。基于本文碎屑石榴子石Si值大于3.02以及前人对湖南金刚石限定的温压条件进行分析,认为湖南金刚石可能形成于深度小于220 km的橄榄岩-榴辉岩混杂区,该区域系钾镁煌斑岩型金刚石来源的优势区域。据此,建议可在辰溪赤岩村河段上游区域进一步寻找幔源G3型石榴子石以及钾镁煌斑岩,以期发现原生金刚石矿床。  相似文献   

Feasibility of using reflectance spectroscopy for the analysis of bio-element concentrations in Antarctic ornithogenic sediments     

刘晓东  孙静  孙立广  刘文齐  王玉红 《极地研究(英文版)》2010,21(1):31-45

Compared with traditional chemical analysis methods, reflectance spectroscopy has the advantages of speed, minimal or no sample preparation, non-destruction, and low cost. The present study explored the application of the reflectance spectroscopy within near ultraviolet-visible-near infrared region to predict bio-element compositions in the ornithogenic sediments from the maritime Antarctic. A total of 106 samples were taken from four ornithogenic sediment cores on the Ardley Island of Antarctica, 68 samples were used for building calibration equation, and 38 for prediction of nine bio-elements including P, Ca, Cu, Zn, Se, Sr, Ba, F and S. Three multivariate statistical analysis techniques, including stepwise multiple linear regression (Stepwise-MLR), principal component regression (PCR) and partial least squares regression (PLS) were used to develop mathematical relationships between the spectral data and the chemical reference data. The results showed that the regression models constructed by PCR and PLS models have no significant differences, and obviously supervisor to Stepwise-MLR. The correlations between spectra-predicted and chemically analyzed concentrations of nine bio-elements are statistically significant, and the concentration-versus-depth profiles predicted from reflectance spectra using PLS calibration model are consistent with those from actual chemical analysis. These results demonstrated the feasibility of using reflectance spectroscopy to infer bio-element concentrations in the ornithogenic sediments, and thus it is suggested that the reflectance spectroscopy could provide a rapid and valuable technique to indirectly identify whether the sediments were influenced by penguin droppings in the Antarctic region.  相似文献   

Geochemistry of solvable organic matter from source rocks in Shangkuli Formation of Labudalin Basin     

GAO Fuhong  GAO Hongmei  FAN Fu  YANG Yang 《世界地质(英文版)》2010,13(2):70-74

A suit of lacustrine source rocks are developed in volcanic deposits in the Shangkuli Formation of the Cretaceous. However, it is poor to understand the characteristics of source rocks due to the low degree of exploration, thus the exploration is severely constrained in this area. Based on the geochemical analysis, the analytic technique of GC and GC-MS, combined with the characteristics of solvable organic matter and biomarkers of the source rocks, the authors discussed the depositional environment, the derivation of the matrix and the maturity characteristics of the organic material of the Shangkuli Formation in Cretaceous. The results show that the organic matter mainly belongs to type Ⅱ1 kerogen, whose abundance is relatively high; it was formed in reductive surrounding where was deep-lake; the hydrocarbon is characterized by mixed-source of organic matter. The thermal evolution of source rocks had reached maturation stage.  相似文献