On 22 September at 9:00pm, the History Channel first aired a documentary special called Super City: New York.The show peels back layers of time showing Manhattan Island as it looked when it was discovered by Henry Hudson in 1609, then examines how people and the geology have changed the landscape and speculates on the city's future.
Hear Dr. Merguerian explain his work on the World Trade Center site in NYC and how this new data helps geologists envision the formation of the Appalachian chain.
