| 兰玉琦,叶瑛.江南地背斜东南缘晚元古宙岛弧型火山岩及其成矿远景[J].地质找矿论丛,1991,(2):1-10 |
| 江南地背斜东南缘晚元古宙岛弧型火山岩及其成矿远景 |
| AN ISLAND ARC VOLCANIC BELT OF LATE PROTEROZOIC ALONG THE SOUTHEASTERN MARGIN OF JIANGNAN GEOANTICLINE AND ITS METALLOGENETIC PROSPECT |
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| DOI：10.6053/j.issn.1001-1412.1991.2. 001 |
| 中文关键词: 古岛弧 火山岩系 成矿远景 |
| 英文关键词: |
| 基金项目: |
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| 摘要点击次数: 1893 |
| 全文下载次数: 1587 |
| 中文摘要: |
| 江南地背斜东南缘分布了许多晚前寒武纪火山岩系,其时代为晚元古宙,在空间上构成了一个完整的火山岩带。形成于岛弧环境,与古洋壳的俯冲及部分熔融有关。成矿特征与现代岛弧类似,在早期喷发的细碧角斑岩中赋存着重要的层状铜矿,并有金矿化。 |
| 英文摘要: |
| In the southeastern margin of Jiangnan geoanticline, occurs a lot of volcanic rocks of late Precambrian, e.g., Shuangxiwu Group in north Zhejiang, Dengshan Group in northeast JiangXi and Jingtan Group in south Anhui.It is demonstrated by up-to-date stratigraphic and chronological data that this volcanic sequence is of late Proterozoic in age and is stratigraphically comparable with Qing-baiko Group in north China.The sequence distributes along the southeast margin of Jiangnan geoanticline continuously and forms an integrate volcanic belt. |
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