Contact metamorphism of shales intruded by a granite dike: Implications for shale gas preservation
详细信息 查看全文
- 作者：Xia Li ; Qin Wang ; qwang@nju.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Wen Zhang ; Hongwei Yin
- 关键词：Shales ; Contact metamorphism ; Vitrinite reflectance ; Pore structure ; Shale gas preservation
- 刊名：International Journal of Coal Geology
- 出版年：2016
- 出版时间：1 April 2016
- 年：2016
- 卷：159
- 期：Complete
- 页码：96-106
- 全文大小：3553 K
文摘
- •
The granite dike has strong effect on mineralogy, organic geochemistry and pore structure of black shales.
- •
There is no evident relationship between TOC content and the distance to the dike.
- •
Contact metamorphism formed macropores and microcracks in the shales near the contact boundary.
- •
Intrusion of granites will cause a fast escape of shale gas in shales within the contact aureole.
- •
The results provide new insights on shale gas preservation in basins with magmatic activities.