GEO 1111 Lecture Notes - Lecture 16: Igneous Rock, Sodium Chloride, Non-Renewable Resource

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: Robert Jack Cornett

Document Summary

Groundwater- the water that lies beneath the ground surface. 0. 15 of total precipitaion iniltrates ground and ends up as groundwater. Misconcepion: groundwater is found in underground lakes and rivers. Groundwater- found in pores of soil, sediment and fractures of bedrock. Porosity--- percentage of voids or pore space, vs. total volume, determines how much groundwater can be stored. Permeability or conducivity: capacity of a rock or sediment to transmit a luid. How much water can you get from a material--- water yield. Fractured crystalline rock- high permeability and low porosity. Distribuion of groundwater: unsaturated zone: voids illed by water and air; iniltraion and percolaion. Water is under sucion due to capillary forces. Factors that control iniltraion: precipitaion, slope, geologic material, vegetaion. Aquifer: permeable rock strata or sediment that stores and transmits groundwater. Unconined aquifer: aquifer uncapped by a conining layer. Top of aquifer, water table, move freely up and down. Conined aquifer: aquifer sandwiched in between two conining layers.