Manhattan Prong, Geological formation beneath Manhattan and Bronx, US.
Description
The Manhattan Prong is a geological formation beneath Manhattan and the Bronx made up of three main rock types: Manhattan Schist, Inwood Marble, and Fordham Gneiss. These rocks form the bedrock foundation and appear exposed at several locations throughout the region, including Central Park and Pelham Bay Park.
History
This formation developed over one billion years ago during the Grenville Orogeny, when ancient mountain-building occurred through continental collisions. The rocks created by this process continue to shape the city's geological foundation.
Culture
Local universities conduct regular field studies in Central Park and Inwood Hill Park to examine rock formations and teach students about regional geology.
Practical
The best opportunities to observe exposed rocks occur year-round at different locations, with parks like Inwood Hill Park and Wave Hill offering easy access. These spots allow visitors to examine the formations up close without special equipment or training.
Did you know?
The strong schist in this formation provides the stable foundation on which many of the world's tallest buildings were constructed. This natural rock quality made New York an ideal location for skyscrapers.
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