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Calmar Formation
The Winterburn Group is a stratigraphic unit of Frasnian Geochronology, age in the Western Canadian Sedimentary Basin. It takes the name from Winterburn area located west of Edmonton, and was first described in well ''P.A. Pyrcz No. 1'' by Imperial Oil Limited in 1950.Geological Staff, Imperial Oil Limited, Western Division, 1950. Devonian Nomenclature in Edmonton Area, Alberta, Canada. Bulletin of the American Association of Petroleum Geologists, Vol. 34, No. 9, pp. 1807-1825. Lithology The Winterburn Group is composed of silty Dolomite (rock), dolomite, evaporite, argillaceous limestone, red and green siltstone, anhydrite, silty Dolomite (rock), dolomite and siltstone. Pinnacle reefs develop in the Nisku Formation. Hydrocarbon production Petroleum, Oil is produced from the Nisku Formation in the Pembina oil field. Distribution The Winterburn Group reaches a maximum thickness of west of the Leduc Formation, Leduc reef system. In central Alberta it is 30 to 70m thick. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Group
In geology, a group is a lithostratigraphy, lithostratigraphic Stratigraphic unit, unit consisting of a series of related Geological formation, formations that have been classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into Supergroup (geology), supergroups. Groups are useful for showing relationships between formations, and they are also useful for small-scale mapping or for studying the stratigraphy of large regions. Geologists exploring a new area have sometimes defined groups when they believe the strata within the groups can be divided into formations during subsequent investigations of the area. It is possible for only some of the strata making up a group to be divided into formations. An example of a group is the Glen Canyon Group, which includes (in ascending order) the Wingate Sandstone, the Moenave Formation, the Kayenta Formation, and the Navajo Sandstone. Each of the formations can be distingui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geochronology
Geochronology is the science of Chronological dating, determining the age of rock (geology), rocks, fossils, and sediments using signatures inherent in the rocks themselves. Absolute geochronology can be accomplished through radioactive isotopes, whereas relative geochronology is provided by tools such as paleomagnetism and stable isotope ratios. By combining multiple geochronological (and biostratigraphic) indicators the precision of the recovered age can be improved. Geochronology is different in application from biostratigraphy, which is the science of assigning sedimentary rocks to a known geological period via describing, cataloging and comparing fossil floral and faunal assemblages. Biostratigraphy does not ''directly'' provide an absolute age determination of a rock, but merely places it within an ''interval'' of time at which that fossil assemblage is known to have coexisted. Both disciplines work together hand in hand, however, to the point where they share the same syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peace River Arch
Peace is a state of harmony in the absence of hostility and violence, and everything that discusses achieving human welfare through justice and peaceful conditions. In a societal sense, peace is commonly used to mean a lack of conflict (such as war) and freedom from fear of violence between individuals or groups. Promotion of peace is a core tenet of many philosophies, religions, and ideologies, many of which consider it a core tenet of their philosophy. Some examples are: religions such as Buddhism and Christianity, important figures like Gandhi, and throughout literature like " Perpetual Peace: A Philosophical Sketch" by Immanuel Kant, " The Art of Peace" by Morihei Ueshiba, or ideologies that strictly adhere to it such as Pacifism within a sociopolitical scope. It is a frequent subject of symbolism and features prominently in art and other cultural traditions. The representation of peace has taken many shapes, with a variety of symbols pertaining to it based on culture, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
