Geology is the study of rocks, and we tend to think of rocks in terms of the solid mineral constituents. This is natural because almost the rocks we examine, in outcrop or in hand speciment, are dry. We are apt to forget that, at depths below only a few metres from the surface, almost all rocks in nature are saturated with water (exceptionally and locally, also oil or gas). Some of this water is important to us as a source of fresh water for drinking, agriculture and industry: much of it is not, being too salty. But whether we can use it or not, it is there as an integral part of the rocks.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Introduction: Liquids at Rest
Richard E. Chapman
- Springer Netherlands
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