Glasford crater
Encyclopedia
The Glasford crater is a buried impact crater
in southern Peoria County
, Illinois
in the United States.
It is 4 kilometres (2.5 mi) in diameter and the age is estimated to be less than 430 million years (Silurian
or younger).
The Glasford crater was discovered by drilling wells for underground natural gas
storage.
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
in southern Peoria County
Peoria County, Illinois
Peoria County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 186,494, which is an increase of 1.7% from 183,433 in 2000. Its county seat is Peoria....
, Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...
in the United States.
It is 4 kilometres (2.5 mi) in diameter and the age is estimated to be less than 430 million years (Silurian
Silurian
The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 Mya , to the beginning of the Devonian Period, about 416.0 ± 2.8 Mya . As with other geologic periods, the rock beds that define the period's start and end are well identified, but the...
or younger).
The Glasford crater was discovered by drilling wells for underground natural gas
Natural gas
Natural gas is a naturally occurring gas mixture consisting primarily of methane, typically with 0–20% higher hydrocarbons . It is found associated with other hydrocarbon fuel, in coal beds, as methane clathrates, and is an important fuel source and a major feedstock for fertilizers.Most natural...
storage.