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The geology of Kentucky formed beginning more than one billion years ago, in the Proterozoic eon of the Precambrian. The oldest igneous and metamorphic crystalline basement rock is part of the Grenville Province, a small continent that collided with the early North American continent. The beginning of the Paleozoic is poorly attested and the ...
The Kentucky Geological Survey (KGS) is a department of the University of Kentucky that provides information on the geology of Kentucky, but has variously over the course of its history been a state level office, or a sub-division of a state combined geology and forestry department, at times its official State Geologist being prohibited by law from being associated with the University of Kentucky.
Kentucky's regions (click on image for color-coding information) Kentucky can be divided into five primary regions: the Cumberland Plateau in the east, which contains much of the historic coal mines; the north-central Bluegrass region, where the major cities and the state capital (Frankfort) are located; the south-central and western Pennyroyal Plateau (also known as the Pennyrile or ...
Designated. 1975. The Red River Gorge is a canyon system on the Red River in east-central Kentucky, United States. Geologically it is part of the Pottsville Escarpment. The gorge lies within the Daniel Boone National Forest and was subsequently designated the Red River Gorge Geological Area, an area of around 29,000 acres (12,000 ha; 120 km 2 ...
The Cumberland Plateau is a deeply dissected plateau, with topographic relief commonly of about 400 feet (120 metres), and frequent sandstone outcroppings and bluffs.. At Kentucky's Pottsville Escarpment, which is the transition from the Cumberland Plateau to the Bluegrass in the north and the Pennyrile in the south, there are many spectacular cliffs, gorges, rockhouses, natural bridges, and ...
Named by. Cummings. Year defined. 1922 [6] Wikimedia Commons has media related to Borden Formation. The Mississippian Borden Formation is a mapped bedrock unit in Kentucky, Indiana, Illinois, Ohio, West Virginia, [7] and Tennessee. It has many members, which has led some geologists to consider it a group (for example in Indiana [8]) rather than ...
Knobs region. Coordinates: 37°52′53″N 85°40′35″W. USGS physiographic map of Kentucky showing the location of the Knobs. The Knobs Region or The Knobs is located in the US state of Kentucky. It is a narrow, arc-shaped region consisting of hundreds of isolated hills. The region wraps around the southern and eastern parts of the ...
Pennyroyal Plateau. The Pennyroyal Plateau or Pennyroyal Region, often spelled Pennyrile, [1] is a large physiographic region of Kentucky that features rolling hills, caves, and karst topography in general. It is named for Hedeoma pulegioides (the American pennyroyal), a wild mint that grows in the area. It is also called the "Mississippian ...