STATE GEOPARKS—STARK’S KNOB—Submarine pillow basalt—by Ed Landing and Alexander Bartholomew. скачать в хорошем качестве

STATE GEOPARKS—STARK’S KNOB—Submarine pillow basalt—by Ed Landing and Alexander Bartholomew.

Stark's Knob is believed to have originated in the Connecticut River Valley 400 million years ago as lava "bubbled up" out of a crack in the earth's crust under a shallow sea. The momentum of plate-tectonics "delivered" it to the town of Northumberland just outside of Schuylerville. The cone shape was created by the mining of the volcanic material for roadbed. Being one of the few places in the United States where "pillow basalt" can be easily seen, this volcanic formation is internationally known and often visited by students and professional geologists from throughout North America. Video submitted by Dr. Ed Landing, New York State Paleontologist, emeritus, New York State Museum, Albany, NY 12203; and Dr. Alexander Bartholomew, Department of Geology, State University of New York-New Paltz, New Paltz, NY 12561