GEOG 1114 1st Edition Lecture 28 Outline of Last Lecture Deserts Mechanical weathering Desert landforms Desertification Differential Weathering Outline of Current Lecture Karst topography Weathering Features of Karst topography Ozark region Current Lecture Karst Topography Landforms that develop in humid areas from the dissolution of limestone Ground water solvent properties dissolve certain chemicals from rock enabling new formations Weathering of Limestone in Humid Areas These 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 topography Occurs more rapidly in humid regions Most effective on carbonate sedimentary rocks i e limestone Results in Karst Topography Features 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 Region Stalactite hang like icicles Stalagmite form when water hits floor If they connect they re called columns
View Full Document
Unlocking...