| 拉日玛金矿床中有机质与金的初始富集关系 |
| |
| 引用本文： | 伊海生,曾允孚,刘金钟.拉日玛金矿床中有机质与金的初始富集关系[J].成都理工大学学报(自然科学版),1994(1). |
| |
| 作者姓名： | 伊海生 曾允孚 刘金钟 |
| |
| 作者单位： | 成都理工学院沉积地质研究所，中国科学院广州地质新技术研究所 |
| |
| 摘 要： | 西秦岭拉日玛金矿床的赋矿岩系太阳顶群，以其高的有机质含量和伴生大量固体沥青而被认为矿化作用与石油烃类有关。根据红外光谱、色谱－质谱分析和反射率测定，揭示出含矿围岩不但是矿源层，而且是油源岩。它具有高的产烃指标和成熟度，有机质是海相菌藻成因的腐泥型。分离的干酪根和可溶有机质的中子沾化分析证实，矿源层中干酪根是金的主要载体，缺氧局限海中微生物及衍生有机质的吸收或吸附是金属元素初始富集的结果。
|
| 关 键 词： | 金矿床，矿源层，生油岩，微生物，初始富集 |
RELATIONSHIP BETWEEN ORGANIC MATTER AND GOLD PRELIMINARY ENRICHMENT IN LARIMA GOLD ORE DEPOSIT |
| |
| Yi Haisheng,Zeng Yunfu,Liu Jinzhong.RELATIONSHIP BETWEEN ORGANIC MATTER AND GOLD PRELIMINARY ENRICHMENT IN LARIMA GOLD ORE DEPOSIT[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1994(1). |
| |
| Authors: | Yi Haisheng Zeng Yunfu Liu Jinzhong |
| |
| Institution: | Yi Haisheng;Zeng Yunfu;Liu Jinzhong |
| |
| Abstract: | Taiyangdin Group as a host rock of Larima gold ore deposit is characterized by high amountsof orgsnic carbon (average 2. 32% )and associated with aboundant solid bitumens.It is proposed that gold mineralization was related to hydrocarbons in the history.Analysis of infrared spectra, GC-MSand reflectivity ocrfirms that the ore host rocks are not only medal source bed,but also comparable totypical oil source rocks.Its organic matter has high values of extracted bitumen and maturity(average5.5 %R0),which is of marine planktonic origin.The element contents from separated kerogens and soluble bitumen by neutron activition analysis show that most of gold in metal source bed is enriched in kerogens.Microoganisms and organic carbons absorption may result in preliminary enrichment of medalelements in euxinic, restricted sea basin. |
| |
| Keywords: | gold deposit metal source bed hydrocarbon source rock microorganism preliminary enrichment |
| 本文献已被 CNKI 等数据库收录！ |
