| 腾冲硅藻土矿床及其成因 |
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| 引用本文： | 尚映莲.腾冲硅藻土矿床及其成因[J].云南地质,2003,22(4):418-425. |
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| 作者姓名： | 尚映莲 |
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| 作者单位： | 云南地质工程第二勘察院,云南,楚雄,675000 |
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| 摘 要： | 古近纪之后，强烈的构造运动在腾冲形成数个新生代湖盆，成为硅藻生存场所。上新世～全新世强烈火山活动为硅藻繁殖提供丰富的物质条件，该期的冰期较冷气候为硅藻提供适宜生存的低温冷水条件，相对平静的湖湾部位是硅藻大量繁殖和遗赅稳定掩埋的良好场所。这些地质构造、古水文、古气候是硅藻土矿床形成的必要条件。
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| 关 键 词： | 硅藻土矿床 新生代湖盆 火山活动 腾冲 构造运动 |
| 文章编号： | 1004-1885(2003)04-418-08 |
| 修稿时间： | 2003年2月23日 |
TENGCHONG DIATOMITE DEPOSIT AND ITS GENESIS |
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| SHANG ying lian.TENGCHONG DIATOMITE DEPOSIT AND ITS GENESIS[J].Yunnan Geology,2003,22(4):418-425. |
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| Authors: | SHANG ying lian |
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| Abstract: | In Tengchong,the diatom was occurred in several Cenozoic lake basin formed by the intensive structural movement after Eogene.The intensive volcanism in Pliocene-Holocene provided the development of diatom with abundant material conditions.The cold weather of ice period was suitable for the diatom existence.And the still gulf is the good place of tremendous reproduction and stable bury of diatom.These geological structure,palaeohydrological and palaeoclimatical conditions are the prerequisite for diatom deposit. |
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| Keywords: | Cenozoic Lake Basin Volcanism Diatom Deposit Tengchong Yunnan |
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