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Geologic Map of West Virginia. West Virginia's geologic history stretches back into the Precambrian, and includes several periods of mountain building and erosion. At times, much of what is now West Virginia was covered by swamps, marshlands, and shallow seas, accounting for the wide variety of sedimentary rocks found in the state, as well as its wealth of coal and natural gas deposits.
Alluvial fans are common in the geologic record, such as in the Triassic basins of eastern North America and the New Red Sandstone of south Devon. Such fan deposits likely contain the largest accumulations of gravel in the geologic record. Alluvial fans have also been found on Mars and Titan, showing that fluvial processes have occurred on ...
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Paleontology in West Virginia refers to paleontological research occurring within or conducted by people from the U.S. state of West Virginia. West Virginia's fossil record begins in the Cambrian . From that time through the rest of the early Paleozoic , the state was at least partially submerged under a shallow sea.
This list of the prehistoric life of West Virginia contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of ...
There are listings in every one of West Virginia's 55 counties. Listings range from prehistoric sites such as Grave Creek Mound , to Cool Spring Farm in the state's eastern panhandle, one of the state's first homesteads, to relatively newer, yet still historical, residences and commercial districts.
An alluvial fan could have been deposited and formed outside of a mountain range, however, thrusting of the mountain belt could cause the alluvial fan to become broken up by the new mountain forming. Thus, the alluvial fan would be split with the fan on either side of the new mountain range development and could change the steepness of the fan. [1]
Alluvial fan – Fan-shaped deposit of sediment; Lake Ragunda – Former whitewater rapid on the river Indalsälven, Sweden; Meander – One of a series of curves in a channel of a matured stream; Megafan – Large fan-shaped deposit; River delta – Silt deposition landform at the mouth of a river; River plume – Mix of fresh river water and ...