ESCI 1001 Lecture Notes - Lecture 13: Mudstone, Stalagmite, Stalactite
Document Summary
Earth and its environments notes week 13 (4/21/15) Flux in and out over oceans is almost balanced. Water moves between reservoirs by evaporation, precipitation and runoff. Water (liquid) vapor (gas) ice (solid) Freshwater: 2. 8: glaciers: 2. 15, groundwater: . (cid:888)(cid:884)% ((cid:884)(cid:884)% of earth"s fresh water and 9(cid:889)% of liquid fresh water, freshwater lakes: . 009, atmosphere: . 001, soil moisture: . 005, stream channels: . 0001, saline lakes and inland seas: . 008% Zone of aeration: pore space partially filled with water. Zone of saturation: pore space completely filled with water. Dynamics of the groundwater table: rainwater infiltrates porous soil and rocks , and flows underground toward lakes and streams. Lakes and rivers = intersection of land surface with water table. Groundwater is always in motion and always moves from high to low ground. High ground areas/recharge areas: water soaks in and begins to flow. During wet periods, the water table is high, and both deep and shallow wells.
