滕吉文^1,,
司芗²,
庄庆祥³,
闫雅芬¹,
郑霜高³
1. 中国科学院地质与地球物理研究所, 北京 100029
2. 国土资源部油气资源战略研究中心, 北京 100034
3. 福建省祥和地热开发有限公司, 福建漳州 350001

基金项目: 国家自然科学基金项目（41674102）资助


详细信息

作者简介: 滕吉文, 男, 1934年生, 教授, 研究员, 中国科学院院士, 主要从事地球物理学和地球动力学研究.E-mail:jwteng@mail.iggcas.ac.cn

中图分类号: P315

收稿日期:2017-09-07
修回日期:2019-01-15
上线日期:2019-05-05

Fine structures of crust and mantle and potential hot dry rock beneath the Zhangzhou Basin

TENG JiWen^1,,
SI Xiang²,
ZHUANG QingXiang³,
YAN YaFen¹,
ZHENG ShuangGao³
1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
2. Strategic Research Center of Oil & Gas Resources, Ministry of Land & Resources, Beijing 100034, China
3. Fujian Xianghe Geothermal Development Co., Ltd, Zhangzhou Fujian 350001, China


MSC: P315

--> Received Date: 07 September 2017
Revised Date: 15 January 2019
Available Online: 05 May 2019


摘要
摘要:漳州盆地与相邻地带的地质构造复杂，水热活动强烈，且伴随着小地震的频频发生.为厘定该盆地深部是否存在潜在的干热岩体，则必须对其壳、幔精细结构和介质物理属性进行探查、研究与探讨.基于漳州盆地壳幔速度结构的格局发现：（1）"灵霄-漳州-安溪"地带的深处存在一低速层，且在漳浦-长泰之间呈现出一"扁豆状"低速体；（2）该低速体北侧为一伸抵上地幔顶部、且向北倾的深大断裂带，若该"扁豆状"低速体为潜在的干热岩，则该深大断裂带可能为深部热液物质上涌与热源补给的通道.
关键词: 漳州盆地/
壳、幔结构/
低速体/
干热岩/
热液上涌通道

Abstract:The Zhangzhou basin and adjacent areas are complex in geological structure with strong hydrothermal activity and frequent small earthquakes. To clarify whether hot dry rock exists beneath this region, we must explore fine structures of the crust and mantle and the properties of their media. The pattern of velocity structures in the Zhangzhou basin suggests that (1) a low velocity zone exists in the crust of the Lingxiao-Zhangzhou-Anxi area, while a lens-shaped low velocity body is present between Zhangpu and Changtai. (2) North of this low-velocity body is a deep and large fault zone that dips to north, extending to the top of upper mantle. If this lens-shaped low velocity body is potential underground hot dry rock, then this fault zone is probably a channel of upwelling hydrothermal materials and thermal source supply from deep curst and mantle.
Key words:Zhangzhou basin/
Crust-mantle structure/
Low velocity body/
Hot dry rock/
Hydrothermal upwelling channel



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