| 摘要: |
| 根据干酪根的元素组成及其他的矿床地质、地球化学特征确定,扬子地块西北缘、西南缘的卡林型金矿床的干酪根属腐泥型干酪根。干酪根的元素组成和成熟度是判别大型卡林型金矿床和小型卡林型金矿床或矿点的重要标志。大型卡林型金矿床的干酪根,碳的平均含量为42.35%,氢的平均含量为1.69%,氧的平均含量为5.03%,小型卡林型金矿床或矿点的干酪根,碳的平均含量为77.23%,氢的平均含量为1.22%,氧的平均含量为4.53%。大型卡林型金矿床的干酪根成熟度特征,反映其热成熟演化经历过成矿流体的脱碳作用和内生氧化作用。 |
| 关键词: 扬子地块西北缘、西南缘 干酪根的元素组成和成熟度 卡林型金矿床 |
| DOI： |
| 投稿时间：1996-07-16修订日期：1997-04-08 |
| 基金项目:国家攀登计划项目的部分研究成果。 |
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| Correlation between Kerogen and Gold Mineralization of Carlin-type Gold Deposits in Northwest and Southwest Margin of Yangtse Plate |
|
Tan Yunjin
|
| (Research Institute of Geology for Mineral Resources, CNNC, Sanlidian, Guilin, Cuangxi, 541004) |
| Abstract: |
| Based on element composition of kerogen and other geologic-geochemical characteristics of deposit,it may define that, the kerogen of carlin-type gold deposit in northwest and southwest margin of Yangtse plate is belong to sapropel type one.The element composition and mature of kerogen is an important distinguish mark between great and small scale carlin-type gold deposits.In the great scale carlin-type gold, deposit,average value C,H and O of kerogen are 42.35%, 1.69% and 5.03% respectively,while in the small scale carlin-type gold deposit, average value C,H and O of kerogen are 77.23%, 1.22% and 4.53% respectively. The mature of kerogen in great scale carlin-type gold deposit reflected that,its mature process has undergone the decarbonation and endogenetic oxidation of ore-formed fluid. |
| Key words: northwest and southwest margin of Yangtse plate element composition and mature of kerogen carlin-type gold deposits |
