Stapleton can be broken down into two distinctive physical geographical regions, till and serpentinite. Till is region where glacier deposits unconsolidated and unsorted mixtures of various sediments such as: clay, gravel, and rocks. Judging from fieldwork, my group did, I speculate that the founders of Tappen Park and the surrounding areas layered down bricks to build a sturdy foundation.
Moving more inland, the region becomes steep and hilly. This is so because this area is closer to serpentinite. The serpentinite is a large protruding greenish outcrop. It has the highest natural elevation in all of New York City. This outcrop is a product of low-grade metamorphism of peridotite. An average sample of serpentinite contains approximately 66% lizardite and 27% chrysotile.
Sample of serpentinite:
Sample of lizardite:
Sample of chrysotile:
In 1858, the H.W. Johns Manufacturing Company began mining low quality chrysotile asbestos from the serpentinite body for the local fire-resistant shingles manufacturer. The H.W. Johns Manufacturing Company eventually merged with the Manville Covering Company and the new company became a world leader in asbestos mining and asbestos-related manufacturing.
Benimoff, Alan, and Anderson Ohan. “The Paleozoic History of Staten Island.” The geology of staten island. Csi, 2003. Accessed May 14, 2012. http://www.library.csi.cuny.edu/dept/as/geo/sigeo.htm.
Powell, Wayne. “Geology of Staten Island.” CUNY Brooklyn . N.p., 2003. Accessed May 10, 2012. http://academic.brooklyn.cuny.edu/geology/powell/NYCgeology/staten island/staten_island.htm.
Stoffer, Phil, and Paula Messina. “Atlantic Coastal Plain.”Geographycafe.com. N.p., 25/12/2011. Accessed May 10 2012. http://geologycafe.com/nyc/coastalplain/coastalplain.htm.