Prongs Creek Formation - meaning and definition. What is Prongs Creek Formation
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What (who) is Prongs Creek Formation - definition


Prongs Creek Formation         
The Prongs Creek Formation is a geologic formation in Yukon. It preserves fossils dating back to the Devonian period.
Geological formation         
  • The [[Permian]] through [[Jurassic]] strata of the [[Colorado Plateau]] area of southeastern [[Utah]] 
demonstrate the principles of [[stratigraphy]].  These strata make up much of the famous prominent rock formations in widely spaced protected areas such as [[Capitol Reef National Park]] and [[Canyonlands National Park]].  From top to bottom: Rounded tan domes of the [[Navajo Sandstone]], layered red [[Kayenta Formation]], cliff-forming, vertically jointed, red [[Wingate Sandstone]], slope-forming, purplish [[Chinle Formation]], layered, lighter-red [[Moenkopi Formation]], and white, layered [[Cutler Formation]] sandstone.  Picture from [[Glen Canyon National Recreation Area]], Utah.
  • The [[Summerville Formation]] is composed of alternating thin beds of two lithologies, mudstone and sandstone, penetrated by veins of a third lithology, gypsum.
  • [[Uluru]] (Ayers Rock) in [[Australia]] is underlain by the Mutitjulu Arkose, a formation composed almost entirely of a single lithology (arkosic sandstone).
BODY OF ROCK IDENTIFIED BY LITHIC CHARACTERISTICS AND STRATIGRAPHIC POSITION; IT IS USUALLY BUT NOT NECESSARILY TABULAR AND IS MAPPABLE AT THE EARTH'S SURFACE OR TRACEABLE IN THE SUBSURFACE. SMALLER THAN A SUBGROUP
Formation (geology); Geologic formation; Geological Formation; Geologic formations; Sedimentary formation; Stratigraphic formation; Geological formations; Formation (stratigraphy)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers.
Manuel Creek Formation         
The Manuel Creek Formation is a geologic formation in Northwest Territories. It preserves fossils dating back to the Jurassic period.