Semi-brittle flow of granitoid fault rocks in experiments

Creep: Time‐dependent brittle deformation in rocks

Criteria for the sense o f movement on fault surfaces in brittle rocks

-This paper gives a detailed description of the use of minor structures on fault planes in various brittle rocks as indicators of the sense of relative movement. The main kinds of structures described involve sets of repeated secondary fractures (striated or not) which intersect the slip plane in a direction roughly perpendicular to the slip direction. Some of the most frequent criteria are new...

The Petrology and Geochemistry of Granitoid Rocks of Troud Area in South-West of Shahrood

The area of study is located 120 Km north-east of Shahrood city. In terms of structure and geological classification, this area is located in the northern part of central Iran zone. Granitoids of Troud ranging from monzonite to granite. The main minerals of granitoids are quartz, plagioclase, and orthose. The accessory minerals are biotite, hornblende, sphene, and opaque minerals. Various textu...

Brittle creep, damage and time-to-failure in rocks

We propose a numerical model based on static fatigue laws in order to model the time-dependent damage and deformation of rocks under creep. An empirical relation between time-to-failure and applied stress is used to simulate the behavior of each element of our finite element model. We first review available data on creep experiments, in order to study how the material properties and the loading...

Influence of phyllosilicates on fault strength in the brittle–ductile transition: insights from rock analogue experiments

Despite the fact that phyllosilicates are ubiquitous in mature fault and shear zones, little is known about the strength of phyllosilicate-bearing fault rocks under brittle–ductile transitional conditions where cataclasis and solution-transfer processes are active. In this study we explored steady-state strength behaviour of a simulated fault rock, consisting of muscovite and halite, using brin...