The Palisades Sill is a Triassic intrusion, formed 200 million years ago. It runs through parts of New York and New Jersey. It is noteworthy for The Palisades, cliffs which rise steeply above the western bank of the Hudson River. The visibility of the sill,and its unique features, have got much attention from nature enthusiasts, rock climbers, and geologists.
Palisades Sill
Questions and Answers
Q: What is the Palisades Sill?
A: The Palisades Sill is a Triassic intrusion that runs through parts of New York and New Jersey.
Q: When was the Palisades Sill formed?
A: The Palisades Sill was formed 200 million years ago.
Q: What is noteworthy about the Palisades Sill?
A: The Palisades Sill is noteworthy for The Palisades, cliffs which rise steeply above the western bank of the Hudson River.
Q: Who is interested in the Palisades Sill?
A: The visibility of the sill, and its unique features, have got much attention from nature enthusiasts, rock climbers, and geologists.
Q: What are The Palisades?
A: The Palisades are cliffs which rise steeply above the western bank of the Hudson River.
Q: What is an intrusion?
A: An intrusion is a geological formation in which molten rock (magma) from inside the Earth's crust is injected into pre-existing rock formations.
Q: How old is the Palisades Sill?
A: The Palisades Sill is 200 million years old.