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The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, Pennsylvania. The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive gases and radioactive iodine into the ...
The top plate illustrates the tectonic setting for the sediments of Pennsylvania. This section is characterized by the metamorphic rocks that provide much of the bedrock for this area. The oldest exposed rocks in Pennsylvania are found here and consist of the Baltimore Gneiss. [8] These rocks have a complex history and a vast array of different ...
Following is a list of dams and reservoirs in Pennsylvania. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ).
The Allegheny National Forest has two ranger stations, one in Marienville, Forest County, and the other in Bradford, McKean County. The Allegheny National Forest lies in the heart of Pennsylvania's oil and gas region. It is only 40 miles (64 km) from the site of the first commercial oil well in the United States at Titusville, Pennsylvania. In ...
The Allegheny Reservoir is surrounded by the Allegheny National Forest in Pennsylvania and Allegany State Park and the Seneca Nation's Allegany Reservation in New York. The man-made lake is about 198 miles (319 km) above the mouth of the river in Pittsburgh, Pennsylvania and located within Warren and McKean counties in Pennsylvania and Cattaraugus County and the Allegany Reservation in New York.
Gettysburg, Pennsylvania. Named by. Stose and Bascom, 1929 [1] The Gettysburg Formation is a mapped bedrock unit consisting primarily of sandstones, conglomerates, and shales. The Gettysburg Formation was first described in the Gettysburg area of Adams County, Pennsylvania in 1929, [1] and over the following decade was mapped in adjacent York ...
A "bucket brigade" works to clear rubble and debris after the September 11 attacks. The September 11 attacks on the World Trade Center elicited a large response of local emergency and rescue personnel to assist in the evacuation of the two towers, resulting in a large loss of the same personnel when the towers collapsed.
The following is a list of the mapped bedrock units in Pennsylvania. The rocks are listed in stratigraphic order. The rocks are listed in stratigraphic order. [ 1 ]