ASBOG Geomorphology Questions And Answers

ASBOG Geomorphology Questions And Answers Karst def'n - ANS-Topography underlain by limestone, dolomite, gypsum, or other rocks which can be affected by dissolution 4 conditions/things necessary for Karst to form - ANS-1. A soluble rock at or near surface 2. A dense rock, highly jointed and thin-bedded 3. Entrenched valleys below uplands underlain by soluble and well-jointed rock 4. A region of moderate to abundant rainfall Karst term: Terra rossa - ANS-Karst feature- A red clayey soil (CL - CH) found on the ground and extending into joints and cracks, usually on moderate to gentle slopes. Karst term:Lapies - ANS-Grooved or fluted surface resulting from the solution or limestone at or near the surface in an area of high relief. Grooves range from a few millimeters to more than a meter, commonly result in knifelike ridges. Karst term: Sinkholes - ANS-Circular depression, commonly funnel-shaped. Two origins- doline, or a collapse of the rock over an underground cavity. Karst term: Sinkhole pond or karst lake - ANS-pond or lake resulting from the clogging by clay of a doline sinkhole that perches water above the water table Karst term: Swallow holes - ANS-a hole in the bottom of a sinkhole Karst term: Karst window - ANS-a hole in the ground in which one can observe an underground stream. A hole in a cavern which breaks the surface. Karst term: Uvala - ANS-an elongated karst window Karst term: Polje - ANS-a sinkhole formed by solutional modification of the rock in a previously faulted or folded structure. Karst term: Solution-subsidence trough - ANS-A non-tectonic feature, resulting from concurrent subsidence and solution along joints or faults. Karst term: Sinkhole or karst plain - ANS-A limestone plain exhibiting sieve-like characteristics resulting from numerous sinkholes Karst term: Sinking creeks - ANS-...