Geofluids: The permeability of faults
The changing fortunes of fault permeability and fluid flow Faults can act as conduits or barriers to fluid flow. As […]
How to do things
Geofluids: Sedimentary basin-scale fluid flow
Fluid flow, like rocks and sediments, define sedimentary basins There is a complex interweave of fluid, sediment, and rock
Geofluids: Lithosphere-scale fluid flow
Fluid flow at lithospheric scales There’s not much that goes on in sedimentary basins that doesn’t involve fluids, particularly the
Source to sink: Sediment routing systems
Sediment routing systems – or how sediment is dispersed between source and sink Earth scientists routinely talk about the rock
Allochthonous terranes – suspect and exotic
Allochthonous terranes, suspect terranes, exotic terranes. In 1972 James Helwig introduced the concept of orogenic collage, wherein orogenic belts were
Basins formed by strike-slip tectonics
By the early 1970s, the new tectonics (the plate kind) had established a firm grip on the geological consciousness. Even
Strike-slip faults – some terminology
In 1940 Harold Wellman and Dick Willett proposed that two groups of rocks at either end of the South
Glossary: Volcanology
See companion glossaries: Geochemistry and diagenesis Petrography-petrology Aa flows: Massive lava flows that grade upward to a chaotic jumble of
Glossary: Structural geology
Angle of internal friction: A rock or material property that refers to its ability to resist deformation, and is measured
Glossary: Geofluids – hydrogeology
Advective fluid flow: The flow of fluids through a porous medium; in this case only the fluids move. Advective flow