GEOG 1114 1st Edition Lecture 28Outline of Last Lecture -Deserts-Mechanical weathering-Desert landforms-Desertification-Differential WeatheringOutline of Current Lecture -Karst topography-Weathering-Features of Karst topography-Ozark regionCurrent Lecture Karst Topography-Landforms that develop in humid areas from the dissolution of limestone. Ground water solventproperties dissolve certain chemicals from rock, enabling new formations. Weathering of Limestone in Humid AreasThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-Dominant mineral is calcite (CaCo3), which dissolves in slightly acidic water crating a carbonate solution that dissolves the limestone.-This dissolution of limestone by carbonic solution at both the surface and subsurface results in karst topographyOccurs more rapidly in humid regionsMost effective on carbonate sedimentary rocks (i.e. limestone)Results in Karst TopographyFeatures of Karst Topography Limestone Caverns: Large opening beneath the Earths surface that result from solation process. Often found in areas with massive limestone deposits, Ozark RegionStalactite – hang like icicles.Stalagmite – form when water hits floor. If they connect they’re called
View Full Document
Unlocking...