| 福建岩石圈的热结构 |
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| 引用本文： | 万天丰,童永福,郑蔚雯.福建岩石圈的热结构[J].现代地质,1987(Z1). |
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| 作者姓名： | 万天丰 童永福 郑蔚雯 |
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| 作者单位： | 中国地质大学
(万天丰)，福建省水文地质工程地质二队
(童永福)，福建省水文地质工程地质二队(郑蔚雯) |
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| 摘 要： | 本文由福建硅热流值研究出发,探讨了热流省参数(qr,A,D),并进而推算了岩石圈不同深度上的温度状态。笔者认为福建东部地区硅热流值偏高,岩石圈厚度较小,居理点深度较浅(大于27km)。热活动性较强,属微弱的地热正异常地区;而西部则反之,热活动性较差。然而,即使在闽东地区也不具备形成岩浆房、干热岩或高温热田的条件,无异常热源。广布的温泉是在微弱地热异常状态下,沿断裂通过地下木的深循环所造成的。
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THERMAL STRUCTURE OF LITHOSPHERE IN FUJIAN,CHINA |
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| Abstract: | Based on the research of silica heat flow in Fujian, to discuss the main heat flow parameters (qr, A, D),the thermal regime of lithosphere in different depth was determined. Authors considered that in eastern Fujian, the silica heat flow was rather high, the thickness of lithosphere was thinner, the depth of Curie point was shallow (more than 27 km), thermal activity was more intensive, it was a weak positive anomaly geothermal area; but in the western Fujian, it was quite different, thermal activity was weaker. However, even in eastern Fujian, there are no condition for the formation of magmatic reservoir, hot dry rock or high temperature hydrothermal fields, so there is no anomalous heat source. The widespread springs are produced by the deep-seated circulation of ground water along the faults under a weak geothermal anomaly state. |
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