Final answer:
Many NYC skyscrapers are located where Manhattan schist is close to the surface, providing a sturdy foundation for heavy structures. Early skyscrapers' need for solid foundations and the city's spatial constraints made building upwards a practical choice. While trends may influence some urban development, the geology of NYC is a critical factor in its architectural evolution.
Step-by-step explanation:
The debate regarding why skyscrapers in New York City (NYC) are primarily located where the Manhattan schist is near the surface involves understanding the city’s geological foundations and historical development. The Manhattan schist is a type of bedrock suitable for supporting the heavy loads of skyscrapers. Its presence close to the surface in certain areas of Manhattan has been crucial for the construction of these tall buildings.
Early skyscrapers emerged in Chicago utilizing steel-frames and safety elevators which allowed buildings to stretch tall into the sky. As these technologies advanced, NYC followed suit and skyscrapers began dotting the city skyline. The city’s limited space and crowded streets also made upward growth an attractive and prestigious solution for businesses seeking prime real estate.
While some may argue that the clustering of skyscrapers over Manhattan schist is coincidental, driven by trends, or influenced by neighborhood development patterns, the geological precondition appears to be a fundamental factor. The need for a solid foundation is evident considering the engineering challenges and the premium value of constructing such incredibly heavy structures in a dense urban core.