Here's a breakdown of the types of rocks you can find:
Metamorphic Rocks:
* Manhattan Schist: This is the bedrock that underlies most of the park. It's a dark, layered rock that was formed from sedimentary rocks that were subjected to intense heat and pressure deep within the Earth's crust.
* Inwood Marble: Found in the northern part of the park, this metamorphic rock is a white to gray marble, which was formed from limestone.
Igneous Rocks:
* Granite: This is a common igneous rock that was quarried in various locations and brought in to create some of the park's features like bridges, walls, and some of the walkways.
* Basalt: You can find basalt in some of the park's rock formations, though it is less prevalent than granite. It is a dark, fine-grained igneous rock.
Sedimentary Rocks:
* Sandstone: This is a common sedimentary rock that can be found in some of the park's walls and pathways.
* Limestone: Although primarily seen as Inwood Marble, the park also features some limestone formations, which are sedimentary rocks formed from the accumulation of marine organisms.
Where to find these rocks:
* Manhattan Schist: You can see the schist exposed in the park's natural rocky outcrops, especially near the northern edge of the park.
* Inwood Marble: Look for this marble in the northernmost part of the park, particularly around the Inwood Hill Park area.
* Granite, Basalt, Sandstone, Limestone: These rocks are primarily used for man-made structures within the park like bridges, walls, and walkways.
Other fun facts:
* The massive Bethesda Terrace, with its intricate carvings, is made from granite.
* The Bow Bridge, a popular icon of Central Park, is constructed from granite blocks.
* The park's iconic Bethesda Fountain is surrounded by a large granite plaza.
Remember, Central Park was constructed in the mid-19th century, and many of the rocks you see were brought in from other locations to create the park's various structures and features.