![]() ĭuring the early stages of the American Revolution, British military Commander Lord Cornwallis landed a force of between 2,500 and 5,000 at Huyler's Landing on November 20, 1776. The Palisades appear on the first European map of the New World, made by Gerardus Mercator in 1541 based on the description given him by Giovanni da Verrazzano, who suggested they look like a "fence of stakes". History Ī colored postcard of the Palisades c. His discovery of a consistent geological pattern in which lake levels rose and fell is now known as the "Van Houten cycle". The most severe extinction in the past 500 million years was the Permian–Triassic extinction event, informally known as the Great Dying, coincided with flood basalt eruptions that produced the Siberian Traps, which constituted one of the largest known volcanic events on Earth and covered over 770,000 sq mi (2,000,000 km 2) with lava įranklyn Van Houten completed groundbreaking research on a rock formation known as the Newark Basin. The end-Triassic extinction event that coincided with the formation of the Hudson Palisades, Central Atlantic magmatic province, 200 million years ago ranks second in severity of the five major extinction episodes that span geologic time. The cliffs are about 300 ft (100 m) thick in sections and originally may have reached 1,000 ft (300 m). Water erosion of the softer sandstone left behind the columnar structure of harder rock that exists today. The molten material cooled and solidified before reaching the surface. The basalt cliffs are the margin of a diabase sill, formed about 200 million years ago, at the close of the Triassic period by the intrusion of molten magma upward into sandstone. The Lenape called the cliffs "rocks that look like rows of trees", a phrase that became " Weehawken", the name of a town in New Jersey that sits at the top of the cliffs across from Midtown Manhattan. A "palisade" is, in general, a defensive fence or wall made up of wooden stakes or tree trunks. Palisade is derived from the same root as the word pole, ultimately from the Latin word palus, meaning stake. They sit in the Newark Basin, a rift basin located mostly in New Jersey. The Palisades are among the most dramatic geologic features in the vicinity of New York City, forming a canyon of the Hudson north of the George Washington Bridge, as well as providing a vista of the Manhattan skyline. North of Fort Lee, the Palisades are part of Palisades Interstate Park and are a National Natural Landmark. ![]() They rise nearly vertically from near the edge of the river, and are about 300 feet (90 m) high at Weehawken, increasing gradually to 540 feet (160 m) high near their northern terminus. The cliffs stretch north from Jersey City about 20 miles (32 km) to near Nyack, New York, and visible at Haverstraw, New York. The Palisades, also called the New Jersey Palisades or the Hudson River Palisades, are a line of steep cliffs along the west side of the lower Hudson River in Northeastern New Jersey and Southeastern New York in the United States. Atop the Hudson Palisades in Englewood Cliffs, New Jersey, overlooking the Hudson River, the George Washington Bridge, and the skyscrapers of Midtown Manhattan, New York City
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