Granitic rock forms at depth, and comprises approximately two-thirds of the Earth's crust. In granites, water flows predominantly along fractures created by tectonic, thermal and erosional events.

Scientists detected living microorganisms within a sealed fracture of 2-billion-year-old rock from South Africa, making them possibly the oldest life forms confirmed to date. Researchers from ...

A type of stimulation treatment, acidizing is performed below the reservoir fracture pressure in an effort to restore the natural permeability of the reservoir rock. Well acidizing is achieved by ...

According to the USGS, "A fault is a fracture or zone of fractures between two blocks of rock. This type of movement can occur rapidly, like an earthquake. Or slowly in the form of a creep." ...