Extrusive igneous rocks are formed on the surface of the earth. These rocks are formed as a result of a volcanic eruption. Most have a fine grained texture made of small crystals due to rapid cooling. However, some of the lava cools so quickly that no crystals have time to form. An example of this type of rock is obsidian, commonly called black glass or volcanic glass.
Hurricane Sandy (unofficially known as Superstorm Sandy) was the deadliest and most destructive hurricane of the 2012 Atlantic hurricane season, and the second-costliest hurricane in United States history.
The NHC stated that Sandy could transition into a wintertime low-pressure system later in the day, but cautioned that this would not weaken the storm prior to landfall. The NHC forecast that Hurricane Sandy would come ashore on the evening of October 29, along the coast of southern New Jersey or Delaware. They warned of multiple hazards associated with the storm. Hurricane-force winds were predicted for the Mid-Atlantic States, including New York City, with tropical storm-force winds from Virginia to Canada.