| 中国晚新生代火山和现代高温水热系统 |
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| 引用本文： | 佟伟,穆治国.中国晚新生代火山和现代高温水热系统[J].地球物理学报,1990,33(3):329-335. |
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| 作者姓名： | 佟伟 穆治国 |
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| 作者单位： | 北京大学地质学系地热研究室 |
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| 摘 要： | 中国的晚新生代火山并不罕见,它们主要分布在东北-华北、东南沿海、台湾北端以及昆仑山区和云南省腾冲县境内.前二区为大陆板内火山,以喷出碱性系列为主.台湾北端是中国唯一的酸性火山岩区.昆仑山和腾冲火山则为陆-陆碰撞型板缘火山,以喷出钙碱系列为主,但昆仑山区以南既有碱钙系列,又有碱性系列.五大连池和白头山等板内火山虽然年青附近却不存在高温水热活动;西藏南部存在板缘高温水热活动,却没有任何近代火山.这一现象表明,地表火山未必是西藏地下存在高温水热资源的必要条件,壳内局部熔融也许是藏南高温水热活动的可几热背景.
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| 关 键 词： | 晚新生代火山 板内火山 板缘火山 高温水热系统 壳内局部熔融 热背景 |
| 收稿时间： | 1989-01-27 |
THE LATE-CENOZOIC VOLCANOES AND ACTIVE HIGH-TEMPERATURE HYDROTHERMAL SYSTEMS IN CHINA |
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| TONG WEI Mu ZHI-GUO LIU SHI-bIN.THE LATE-CENOZOIC VOLCANOES AND ACTIVE HIGH-TEMPERATURE HYDROTHERMAL SYSTEMS IN CHINA[J].Chinese Journal of Geophysics,1990,33(3):329-335. |
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| Authors: | TONG WEI Mu ZHI-GUO LIU SHI-bIN |
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| Institution: | Geothermal Research Section, Geology Department, Peking University, Beijing 100871 |
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| Abstract: | The late-Cenozoic volcanoes are not uncommon, and mainly scattered over the northeast and north China, southeastern coastal provinces, northern tip of Taiwan, Kunlun mountainous district and the Tengchong of western Yunnan province. The former two are continental in-traplate volcanoes, and extruded mainly the lava of alkaline series. The volcanoes in northern Taiwan is the unique acidic volcanic area of China. The last two are the interplate volcanoes resulted from collision-convergence between two continental plates, and extruded mainly the calc-alkalinc .series, but the alkalicalcic and alkaline series were also present in the south of Kunlun volcanic zone. Although very young, the Wudalianchi and Baitoushan volcanoes in the northeast China are lack of any high-temperature hydrothermal manifestation. Quite the contrary, high-temperature hydrothermal systems are wide-spread over the southern Tibet despite the lacking of the late-Cenozoic volcano. This implies that volcano is not the necessary condition for producing a subsurficial high-temperature hydrothermal resources. The partial re-melting within the crust may be the probable thermal background for the high-temperature hydrothermal activities in the southern Tibet. |
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| Keywords: | Late-Cenozoic volcano Intraplate volcano Interplate volcano High-tem-perature hydothermal system Partial melting within the crust Thermal background |
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