Chapter 9 Groundwater

Chapter 9 Groundwater 9.1 Introduction Groundwater originates as rainfall or snow (precipitation), and then moves through ... 214 9 Groundwater. 9.3 Hydrological Property of Rocks 9.3.1 Porosity It is the percentage of the volume of open spaces (pore spaces) within the rock (Fig. 9.4). Open spaces determine the amount of water that a rock can hold. ................
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