Mirovia (from Russian мировой, mirovoy, meaning "global") was an hypothesized paleo-ocean which may have been a global ocean that surrounded the supercontinent Rodinia in the Neoproterozoic Era, about 1 billion to 750 million years ago. Russian ( transliteration:,) is the most geographically widespread language of Eurasia, the most widely spoken of the Slavic languages An ocean (from Greek, ''Okeanos'' (Oceanus) is a major body of saline water, and a principal component of the Hydrosphere. In Geology, a supercontinent is a Landmass comprising more than one Continental core or Craton. For the Genus of Metalmark butterflies, see Rodinia (butterfly. The Neoproterozoic Era is the unit of geologic time from 1000 to 542 +/- 0 [1] The Mirovia may be essentially identical to, or the precursor of, the hypothesized Pan-African Ocean which followed the rifting of Rodinia. The Pan-African Ocean is an hypothesized paleo-ocean that surrounded the Supercontinent of Pannotia. In Geology, a rift is a place where the Earth 's crust and Lithosphere are being pulled apart and is an example of Extensional tectonics The Panthalassa (proto-Pacific Ocean) developed in the Neoproterozoic Era at the expense by subduction of the global Mirovia. Panthalassa ( Greek, meaning 'all seas' also known as the Panthalassic Ocean, was the vast global Ocean that surrounded the Supercontinent The Pacific Ocean is the largest of the Earth 's Oceanic divisions In Geology, a subduction zone is an area on Earth where two tectonic plates meet and move towards one another with one sliding underneath the other [2]
Geologic evidence suggests that the middle Neoproterozoic, the Cryogenian period, was an extreme ice age so intense that Mirovia may have been completely frozen to a depth of 2 kilometres. The Cryogenian (from Greek cryos "cold" and genesis "birth" is a Geologic period that lasted from. An ice age is a period of long-term reduction in the Temperature of the Earth 's surface and atmosphere resulting in an expansion of continental Ice sheets The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand This is the Snowball Earth hypothesis. The Snowball Earth Hypothesis as it was originally proposed]] Evidence The Snowball Earth hypothesis was originally devised to explain the apparent presence of
References
- ^ McMenamin, Mark A. ; Dianna L. McMenamin (1990) “The Rifting of Rodina” in The Emergence of Animals, Columbia University Press, ISBN 0-231-06647-3
- ^ Powell, Christopher McA and Pisarevsky, Sergei A. , RODINIA TO GONDWANALAND: GROWTH OF THE PACIFIC OCEAN AND DESTRUCTION OF THE MOZAMBIQUE AND BRAZILIDE OCEANS, GSA Conference, Earth System Processes - Global Meeting (June 24-28, 2001), abstract http://gsa.confex.com/gsa/2001ESP/finalprogram/abstract_8026.htm
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