Hard rocks or crystalline rocks (ie, plutonic and metamorphic rocks) constitute the basement
of all continents, and are particularly exposed at the surface in the large shields of Africa …

Deformation along faults in the shallow crust (< 1 km) introduces permeability heterogeneity
and anisotropy, which has an important impact on processes such as regional groundwater …

Terra Nova, 23, 145–161, 2011 Abstract The hydrogeology of superficial (∼ 0–100 m bgl)
Hard Rock Aquifers (HRA; ie plutonic and metamorphic rocks) has so far been dominated by …

Two large‐scale cross‐hole pum** tests were conducted at depths of 191–226 m and 662–
706 m in deep boreholes at the Mizunami Underground Research Laboratory (MIU) …

Recently, the rapid increase in tunnel construction in karst areas across China has attracted
considerable attention. However, frequently occurring groundwater inrush hazards induced …

This study explores how the topology-based measure of connectivity of a three-dimensional
discrete fracture network (DFN) can be used to predict flow channelization, a commonly …

Essentially all hydrogeological processes are strongly influenced by the subsurface spatial
heterogeneity and the temporal variation of environmental conditions, hydraulic properties …

This study deals with the effects of hydrodynamic functioning of hard-rock aquifers on
microbial communities. In hard-rock aquifers, the heterogeneous hydrologic circulation …

Groundwater in shallow weathered and fractured crystalline rock aquifers is often the only
perennial water resource, especially in semi-arid region such as Southern India …

Subsurface environments host most of the fresh water on Earth as well as diverse
microorganisms that may constitute a significant part of the biosphere. However, the …