Normal and thrust faults by Sezgin Aytuna
Showing posts with label Roadcut. Show all posts
Showing posts with label Roadcut. Show all posts
Monday, August 10, 2015
Saturday, June 13, 2015
Sideling Hill Roadcut, Ridge-and-Valley province, Appalachian Mountains, Maryland
Sidling Hill Geology by Mike Fitzpatrick
Sideling Hill is a syncline mountain, in a region of downward-folded (synclinal) rock strata between two upfolded anticlines. The ridge is capped by an erosion-resistant conglomerate and sandstone of Mississippian (early Carboniferous) geologic age, the Purslane Sandstone of the Pocono Formation. The ridge's slopes are formed of much more easily eroded kinds of rock, including the Devonian-Mississippian Rockwell Formation, with long, narrow valleys paralleling the ridge on either side. (Wikipedia)
Sunday, May 31, 2015
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