Search results
Results from the WOW.Com Content Network
If the conglomerate consists of two or more different types of rocks, minerals, or combination of both, it is known as either a polymict or polymictic conglomerate. If a polymictic conglomerate contains an assortment of the clasts of metastable and unstable rocks and minerals, it is called either a petromict or petromictic conglomerate.
Kennedy and Moore (1971) describe a stratigraphy of up to three geologic formations: Stadium Conglomerate, Mission Valley Formation, and the later-named Pomerado Conglomerate. The basal unit is the Stadium Conglomerate. The Stadium Conglomerate is overlain by the Mission Valley Formation. [4]
Jasper-quartz pebble conglomerate found near Bruce Mines, Ontario, Canada. Jasper conglomerate is an informal term for a very distinctive Paleoproterozoic quartz and jasper pebble conglomerate that occurs within the middle part of the Lorrain Formation of the Cobalt Group of the Huronian Supergroup.
The Shinarump Conglomerate is a highly resistant coarse-grained sandstone and pebble conglomerate [1] (minor or major conglomerates are a typical base layer after unconformities or disconformities; the Shinarump is a major conglomerate) with rare lenses of mudstone, sometimes forming a caprock because of its hardness, cementation, and erosion resistance. [2]
Schunemunk conglomerate. The Schunemunk puddingstone is a conglomerate in New York and New Jersey that is part of a 3,000 feet (910 m) thick geologic formation formally known as the Skunnemunk Conglomerate. It is exposed extensively on Bearfort Mountain, in Boonton and Rockaway Township in New Jersey and on Schunemunk Mountain in New York.
The group consists of sandstone, claystone, limestone, and conglomerate, [1] with a maximum thickness of 1,770 meters (5,810 ft) in the Chiricahua Mountains. [4] In the Tombstone, Arizona, area, it overlies the Naco Formation. [5]
The Newark Supergroup consists largely of poorly sorted nonmarine sediments; typical rocks are breccia, conglomerate, arkose sandstone, siltstone, and shale. [3] [4] Most of the strata are red beds that feature ripple marks, mud cracks, and even rain drop prints; dinosaur footprints are common, though actual body fossils are very rare. [4]
Conglomerates are coarse grained rocks dominantly composed of gravel sized particles that are typically held together by a finer grained matrix. [4] These rocks are often subdivided into conglomerates and breccias. The major characteristic that divides these two categories is the amount of rounding.