How vein sealing boosts fracture widening rates - The buckling-enhanced aperture growth mechanism for syn-tectonic veins
详细信息 查看全文
- 作者：Jens-Alexander Nü ; chter jens.nuechter@rub.de
- 关键词：Vein mechanics ; Buckling-enhanced vein aperture growth ; Low aspect ratio veins ; Numerical simulations ; Seismic cycle ; Stresses in the crust
- 刊名：Tectonophysics
- 出版年：2017
- 出版时间：2 January 2017
- 年：2017
- 卷：694
- 期：Complete
- 页码：69-86
- 全文大小：2522 K
- 卷排序：694
文摘
The Buckling-enhanced aperture growth mechanism for low-aspect ratio veins is introduced. The mechanism predicts fracture aperture growth driven by buckling instabilities in incipient cement layers. Aperture growth rates increase with increasing viscosity contrasts between the cement and the host rock. Aperture growth rates increase with increasing cement layer thickness. Stresses ahead a vein widening by the mechanism proposed here are fully compressive.