Articles | Volume 11, issue 3
Research article
07 May 2020
Research article |  | 07 May 2020

Characteristics of a fracture network surrounding a hydrothermally altered shear zone from geophysical borehole logs

Eva Caspari, Andrew Greenwood, Ludovic Baron, Daniel Egli, Enea Toschini, Kaiyan Hu, and Klaus Holliger

Data sets

GDP1 well log data from a hydrothermally altered shear zone Eva Caspari

Short summary
A shallow borehole was drilled to explore the petrophysical and hydraulic characteristics of a hydrothermally active fault in the crystalline Aar massif of the Alps. A key objective of studying surficial features of this kind is to establish analogies with natural and deep-seated engineered hydrothermal systems. A wide range of geophysical borehole logs was acquired, which revealed a complex fracture network in the damage zone of the fault and a related compartmentalized hydraulic behavior.