What formed Long Island?
Pre-glacial geologic events in the Long Island include the formation of the ancient (over 400 million year old) metamorphic bedrock that forms the foundation upon which Long Island rests, and the deposition of sands and clays on this bedrock 70 million years ago, during the late Cretaceous period.
What natural forces formed Long Island New York?
Long Island, as part of the Outer Lands region, is formed largely of four spines of glacial moraine, with a large, sandy outwash plain towards its barrier islands and the Atlantic Ocean.
What is the history of Long Island New York?
Long Island has had a long recorded history from the first European settlements in the 17th century to today. Greatly influenced by construction of railroads in the 19th century, it experienced growth in tourism as well as the development of towns and villages into some of the first modern suburbs in the United States.
How was the North Shore of Long Island formed?
The glacial movement sculpted the Cretaceous layer, creating a rocky North Shore and a gentle slope down to the South Shore, and outwash from these glaciers covered the island with sand and sediment (M and S 5).
Why is the North Shore of Long Island Hilly?
Being a remnant of glacial moraine, the North Shore is somewhat hilly, and its beaches are more rocky than those on the flat, sandy outwash plain of the South Shore along the Atlantic Ocean. Large boulders known as glacial erratics are scattered across the area.
Why is long island shaped like a fish?
The big ice cubes that broke off fell and melted, creating bays, mostly those on the northern shore. The same falling, melting ice cubes split the East End into the North and South Forks. The glacier has had a big impact on the shape and features of Long Island.
Are there sharks on Long Island?
(CNN) There have been at least 19 shark sightings on Long Island’s Nassau County in New York this season, County Executive Laura Curran tweeted Saturday. Curran said sharks, and the schools of fish that they chase, are attracted northward by streams of warm water that flow from the subtropics and tropics.
Is it safe to swim in the Long Island Sound?
Remember, Long Island Sound has many beaches that are tested frequently and are reliably safe to swim at. You should enjoy them! Save the Sound’s goal is to make every beach safe and healthy, every day. Together, we can fix all of them and Save the Sound.
Is the Long Island Sound Clean to swim in?
While Long Island Sound’s water is getting cleaner, the Sound still suffers from hypoxic “dead zones,” beach closures, and other effects of contamination that keeps the Sound from meeting water quality standards.
What is the average depth of Long Island Sound?
63 feet
Are there jellyfish in Long Island Sound?
Typically, the jellies that show up in Long Island Sound include the moon jelly, identified by the four horseshoe-shaped marks in the middle, and the reddish-brown lion’s mane jelly. One thing that many people don’t know is that the phrase “jellyfish” is a misnomer.
Is Long Island Sound salt water?
Long Island Sound is an estuary, a place where saltwater from the ocean mixes with fresh water from rivers draining from the land. They serve as feeding, breeding, and nursery areas for many species that spend most of their adult lives in the ocean.
Is the Long Island Sound dirty?
Case Study: Long Island Sound The Long Island Sound estuary annually suffers from low dissolved oxygen conditions because of nutrient pollution – from sewage treatment plants, septic systems, atmospheric deposition, fertilizer and animal waste – from New York City, Long Island and Connecticut.
What are the problems with the Long Island Sound?
The biggest overall problem impacting the health of Long Island Sound is high levels of nitrogen and other nutrients, which contribute to dead zones, algae blooms, and marsh damage. Progress has been made in reducing nitrogen, especially from wastewater treatment plants—but further reductions are needed!
How clean is Long Island Sound water?
Save the Sound’s LIS Beach Report offered good news for swimmers and beachgoers, highlighting dozens of beaches on both sides of the Sound that consistently earn top grades for water quality. On average, Long Island Sound beaches met safe-swimming criteria 93.3% of the time in 2016-2018.