Water Gaps - Delaware Water Gap, Tussey Mountain, Jacks Mountain, Evitts Mountain, Manawatu Gorge, the Narrows (Paperback)

Chapters: Delaware Water Gap, Tussey Mountain, Jacks Mountain, Evitts Mountain, Manawatu Gorge, the Narrows. Source: Wikipedia. Pages: 29. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Delaware Water Gap - Worthington State Forest, from a campsiteThe Delaware Water gap began to be created four hundred fifty million years ago when quartz pebbles were deposited in a shallow sea, on top of the Ordovician Martinsburg shale. The Martinsburg shale was created when a chain of volcanic islands collided with proto North America around four hundred fifty million years ago. These islands went over the North American plate. This collision deposited rock on top of the North American plate. This is how the Highlands and Kittatinny Valley was created. Then around four hundred million years ago a small continent that was thin and long, then collided with proto North America. Geologic pressure twisted the Silurian Shawangunk Conglomerate, therefore breaking or shattering the gray quartzite. Pressure from this continental strike, compressed the bed rock of the quartzite, created heat, allowed the quartzite to bend and melt silica to bond the quartz pebbles and other conglomerate together. Geologic pressure forced the quartzite up, and the Delaware River slowly cut its path through the shattered quartzite. Otherwise the river may not have been able to cut its path. As one can see the top ridge of the Kittatinny, is offset from the top of Blue Mountain. Millions of years of rain, ice, snow and wind erosion shaped the area. The Wisconsin glacier which occurred between 21,000 BC to 13,000 BC, covered the entire Kittatinny Ridge and ended near Belvidere. This was the final touch to the Gap's look. The mountain is of the Silurian Shawangunk conglomerate. This is a gray quartzite, which makes the mountain highl...More: http: //booksllc.net/?id=299935