| 蒋永年.鞍山地区千枚岩和含铁石英岩的稀土元素分布特征[J].地质找矿论丛,1988,(1):23-31 |
| 鞍山地区千枚岩和含铁石英岩的稀土元素分布特征 |
| THE DISTRIBUTION CHARACTERISTICS OF THE RARE EARTH ELEMENTS IN PHYLLITES AND IRON-BEARING QUARTZITES FORM ANSHAN DISTRICT |
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| DOI：10.6053/j.issn.1001-1412.1988.1. 003 |
| 中文关键词: 稀土配分 矿物组合 岩石类型 差异对比 深部找矿 |
| 英文关键词: |
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| 中文摘要: |
| 鞍山地区有南、北两个主要铁矿带。许多地质学家皆认为两个矿带是同一层位,属于鞍山群上部层位。作者根据两个矿带中千枚岩和含铁石英岩的稀土元素分配特征、原岩建造、变质程度等,认为南矿带与北矿带的上部层位相当,属元古界。北矿带的下部层位应属晚太古界,并指出深部找太古代铁矿的可能性。 |
| 英文摘要: |
| There are two main iron ore belts at Anshan district: the eastern-western Anshan-Yanqianshanore belt, trending E——W and the Yingtaoyuan-Xidabei ore belt, trending NNW. Many geologist shold that the two iron ore belts are the same horizon and belong to the upper Anshan group. Buttemarkable differences in many respects are found recently between these two ore belts. According to the distribution characteristics of the rare earth elements in phyllite and iron-bearing quartzite from the two ore belts, the author considers that the lower part of Yingtao-yuan-Xidabei ore belt belongs to the upper Anshan group, while the upper part and the eastern-western Anshan-Yanqianshan ore belt are roughly the same horizon, probably belonging to Proterzoic group.If this inference is correct, it is possible to find iron ores belonging to Anshan group in the depths. |
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