Ads
related to: karst topography map pennsylvania
Search results
Results From The WOW.Com Content Network
The top plate illustrates the tectonic setting for the sediments of Pennsylvania. This section is characterized by the metamorphic rocks that provide much of the bedrock for this area. The oldest exposed rocks in Pennsylvania are found here and consist of the Baltimore Gneiss. [8] These rocks have a complex history and a vast array of different ...
Karst topography is a geological formation shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite, but also in gypsum. [1] It has also been documented for weathering -resistant rocks, such as quartzite , given the right conditions. [ 2 ]
Seen most clearly in the deep and broken gorge of the Slippery Rock Creek [6] is the karst topography of the region around Rose Point, which also includes significant cave complexes. Leading among the caves in the area is the Harlansburg Cave, Pennsylvania's longest cave, which has been reported to extend from Harlansburg (eleven miles away) to ...
Karst (/ k ɑːr s t /) is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground.
Green Pond Marsh is in a section of Northampton County with karst geological features. Karst geology manifests itself on topographic maps with closed, semi-closed, or linear depressions. The depressions are caused by the deterioration of the underpinning limestone bedrock by ground water. In many cases in this area, sinkholes occur without ...
Tower karst – Topography from dissolved soluble rocks; Towhead – Exposed landmass within a river; Trim line – Clear line on the side of a valley marking the most recent highest extent of the glacier; Truncated spur – Ridge that descends towards a valley floor or coastline that is cut short; Tunnel valley – Glacial-formed geographic ...