I have copy and pasted these three article into my user page Supercontinent section , List of supercontinents and Supercontinent cycle . The new and improved lol article will be name Supercontinent . When I am finished, I will move the new Supercontinent article to Wikipedia. This process takes me a month ... supercontinent File Two point equidistant asia.jpg thumb The Eurasia n supercontinent In geology , a supercontinent is a landmass comprising more than one continent al core, or craton . The assembly ... , if taken as a whole ref qualifies as a supercontinent today. History Most commonly, Paleogeography paleogeographers employ the term supercontinent to refer to a single landmass consisting of all the modern continent s. The earliest known supercontinent was Vaalbara . It formed from proto continents and was a supercontinent by 3.1 billion years ago 3.1 Giga annum Ga . Vaalbara broke up 2.8 Giga annum Ga ago. The supercontinent Kenorland was formed 2.7 Giga annum Ga ago and then broke sometime ... Australia , and Kalahari craton Kalahari . The supercontinent Columbia supercontinent Columbia ... supercontinent journal Earth Science Reviews volume 59 pages 125 162 doi 10.1016 S0012 8252 02 00073 ..., M. Wilde, Simon A. Li, S.Z. year 2004 title A Paleo Mesoproterozoic supercontinent assembly, growth ... bibcode 2004ESRv...67...91Z ref The supercontinent Rodinia formed about 1.1 billion years ago and broke ... the best known supercontinent, Pangaea . Pangaea subsequently broke up into the northern and southern ... s Surface last Erickson first Jon year 1993 isbn 0 8160 2590 8 ref Rp 92 If a supercontinent ... supercontinent over a large mantle downflow and the cycle of dispersal and rejoining will begin again ... tectonics List of supercontinents Supercontinent cycle br References Reflist External links http ... br Dreistkevandir ca Supercontinent cs Superkontinent cy Uwchgyfandir da Superkontinent de ... fr Supercontinent gl Supercontinente ko hr Superkontinent it Supercontinente he ka ... more details
Nena was an ancient minor supercontinent that consisted of the craton s of Arctica , Baltica , and East Antarctic craton East Antarctica . Forming about 1.8 billion years ago, the continent was part of the global supercontinent, Columbia supercontinent Columbia . Nena is an Acronym and initialism acronym that derives from Northern Europe and North America . References Reflist Sankaran, A. V., http www.iisc.ernet.in currsci oct252003 1121.pdf The Supercontinent Medley Recent Views . Current Science , 2003 08 25. Continents of the world DEFAULTSORT Nena Supercontinent Category Supercontinents Category Proterozoic Geology stub de Nena Kontinent es Nena supercontinente fa it Nena supercontinente nl Nena supercontinent ja nn Superkontinentet Nena pt Nena supercontinente tr Nena k ta uk vi Nena zh ... more details
being reconfigured. One complete supercontinent cycle is said to take 300 to 500 million years .... The last supercontinent, Pangaea , formed about 300 million years ago. The previous supercontinent ... irregular. For example, the supercontinent before Pannotia, Rodinia , existed 1.25 billion to 750 million years ago a mere 150 million years before Pannotia. The supercontinent before this was Columbia supercontinent Columbia 1.8 to 1.5 billion years ago. ref name Zhao1 Cite journal doi 10.1016 ... 2002 title Review of global 2.1 1.8 Ga orogens implications for a pre Rodinia supercontinent journal ..., Simon A. Li, S.Z. year 2004 title A Paleo Mesoproterozoic supercontinent assembly, growth and breakup ... and continental collision. ref cite doi 10.1126 science.1206275 ref The hypothetical supercontinent ... a relatively simple relationship between the Supercontinent Cycle and the mean age of the seafloor. Supercontinent lots of old seafloor low sea level Dispersed continents lots of young seafloor high sea level There will also be a climatic effect of the supercontinent cycle that will amplify this further Supercontinent continental climate dominant continental glaciation likely still lower ... regimes that accompany the supercontinent cycle During break up of the supercontinent, rifting environments ... the Paleozoic Supercontinent Cycle and is being observed for the Mesozoic Cenozoic Supercontinent Cycle ... by warm climates. Both reflect the supercontinent cycle. We are now in a little greenhouse ... with aragonite sea s Formation of supercontinent s Greenhouse climate Continents dispersed Sea ... S ocean basins and continents. Diversity, as measured by the number of families, follows the supercontinent ... first1 R. D. last2 Worsley first2 T. R. last3 Moody first3 J. B. year 1988 title The supercontinent ... more details
Columbia , also known as Nuna and Hudsonland , was one of Earth s oldest supercontinent s. It was first proposed by J.J.W. Rogers and M. Santosh 2002 ref Rogers, J.J.W. and Santosh, M., 2002, Configuration of Columbia, a Mesoproterozoic supercontinent. Gondwana Research, v. 5, pp. 5 22 ref and is thought ... for a pre Rodinia supercontinent journal Earth Science Reviews volume 59 pages 125 162 doi 10.1016 S0012 8252 02 00073 9 bibcode 2002ESRv...59..125Z ref proposed that the assembly of the supercontinent ... Zhao coauthors Sun, M. Wilde, Simon A. Li, S.Z. year 2004 title A Paleo Mesoproterozoic supercontinent ... . ref cite news url http www.spacedaily.com news tectonics 02b.html title New Supercontinent ... implications for a pre Rodinia supercontinent. Earth Science Reviews , v. 59, p. 125 162 ref The cratonic .... year 2002 title Review of global 2.1 1.8 Ga orogens implications for a pre Rodinia supercontinent. Earth Science Reviews , v. 59, p. 125 162 ref Outgrowth Following its final assembly at 1.8 Ga, the supercontinent ..., Simon A. Li, S.Z. year 2004 title A Paleo Mesoproterozoic supercontinent assembly, growth and breakup ... evidence for its outboard position in the Paleo Mesoproterozoic Columbia Supercontinent. Gondwana ... 2 hi science nature 1892869.stm title Ancient supercontinent proposed publisher BBC date 2002 04 ... breakup of the supercontinent at about 1.3 1.2 Ga, marked by the emplacement of the 1.27 Ga Mackenzie ..., Brazil Precambrian Research , v. 164, p. 40 49 162 ref The new configuration of the Columbia supercontinent ... title Configuration of the Late Paleoproterozoic supercontinent Columbia insights from radiating mafic dyke swarms journal Gondwana Research volume 14 pages 359 405 ref See also Plate tectonics Supercontinent ... Supercontinent Category Supercontinents Category Proterozoic bs Kolumbija superkontinent ca Col mbia supercontinent de Columbia Kontinent es Columbia supercontinente eu Columbia superkontinentea fr Columbia supercontinent ko it Columbia supercontinente nl Columbia continent ja ... more details
about a continent unreferenced date March 2008 Image Positions of ancient continents, 550 million years ago.jpg thumb right 250px Baltica in 550 mya unit mya green Baltica is a name applied by geologists to a late Proterozoic , early Palaeozoic continent that now includes the East European craton of northwestern Eurasia . Baltica was created as an entity not earlier than 1.8 billion years ago. Before this time, the three segments continents that now comprise the East European craton were in different places on the globe. Baltica existed on a tectonic plate called the Baltic Plate . Partial history 1.8 billion years ago, Baltica was part of the major supercontinent Columbia supercontinent Columbia . 1.5 billion years ago, Baltica along with Arctica and East Antarctic craton East Antarctica were part of the minor supercontinent Nena supercontinent Nena . 1.1 billion years ago, Baltica was part of the major supercontinent Rodinia . 750 million years ago, Baltica was part of the minor supercontinent Protolaurasia . 600 million years ago, Baltica was part of the major supercontinent Pannotia . Cambrian , Baltica was an independent continent. late Ordovician , Baltica collided with Avalonia most of modern Western Europe Devonian , Baltica collided against Laurentia , forming the minor supercontinent Euramerica . Permian , all major continents collided against each other to form the major supercontinent Pangaea . Jurassic , Pangaea rifted into two minor supercontinents, Laurasia and Gondwana . Baltica was part of the minor supercontinent Laurasia. Cretaceous , Baltica was part of the minor supercontinent Eurasia . Present, Baltica is part of the forming minor supercontinent Afro Eurasia . See also Baltic Shield Baltic Plate Continents of the world Category Historical continents Category Plate tectonics Category Proterozoic Category Paleozoic Category Natural history of Europe cs Baltika de Baltica Kontinent es B ltica eu Baltika fr Baltica ko it Baltica lt Baltika nl B ... more details
Refimprove date February 2012 Ur was a supercontinent that formed mya 3000 3 billion in the early Archean Eon geology eon the oldest continent on Earth, half a billion years older than Arctica . Ur joined with the continents Nena supercontinent Nena and Atlantica about mya 1000 1 billion to form the supercontinent Rodinia . Ur survived as a single unit until it was sundered when the supercontinent Pangaea broke apart into Laurasia and Gondwana . ref name Endeavors 1997 harvnb Zubritsky 1997 ref Ur may have been preceded by one other supercontinent, Vaalbara , which is suggested to have formed about mya 3600 3100 . ref harvnb Lerner Lerner 2003 ref Formation and breakup ref improve section date January 2011 Rocks that made up Ur are now parts of Africa , Australia continent Australia , and Indian subcontinent India . ref name Endeavors 1997 In the early period of its existence, it was probably the only continent on Earth, and is considered to be a supercontinent , even though it was probably smaller than Australia is now. When it was the only continent on Earth, all other land was in the form of small granite islands and small land masses like Kenorland that were not large enough to be continents. Timeline Unreferenced section date January 2011 3 billion years ago, Ur formed as the only continent on Earth . 2.8 billion years ago, Ur was a part of the major supercontinent Kenorland . 2 billion years ago, Ur was a part of the major supercontinent Columbia supercontinent Columbia . 1 billion years ago, Ur was a part of the major supercontinent Rodinia . 550 million years ago, Ur was a part of the major supercontinent Pannotia . 300 million years ago, Ur was a part of the major supercontinent Pangaea . 208 million years ago, Ur was torn apart into parts of Laurasia and Gondwana . 65 million years ago, the Africa n part of Ur was torn apart as part of India. Present, Ur is part ... Category Archean Category Historical continents ca Ur supercontinent cs Ur kontinent de Ur Kontinent ... more details
These is a list of former Oceans that disappeared due to the tectonic movements and other geographical and climatic changes. Bridge River Ocean , the ocean between the ancient Insular Islands and North America. Iapetus Ocean , the southern hemisphere ocean between Baltica and Avalonia. Panthalassa , the vast world ocean that surrounded the Pangaea supercontinent. Rheic Ocean Slide Mountain Ocean , the ocean between the ancient Intermontane Islands and North America. Tethys Ocean , the ocean between the ancient continents of Gondwana and Laurasia. Khanty Ocean , the ocean between Baltica and Siberia. Mirovia , the ocean that surrounded the Rodinia supercontinent. Paleo Tethys Ocean , the ocean between Gondwana and the Hunic terranes. Poseidon Ocean Proto Tethys Ocean Pan African Ocean , the ocean that surrounded the Pannotia supercontinent. Superocean , the ocean that surrounds a global supercontinent. Ural Ocean , the ocean between Siberia and Baltica. Category Oceans Category Oceanography Oceans ... more details
I have copy and pasted these three article into my user page Supercontinent section , List of supercontinents and Supercontinent cycle . The new and improved lol article will be name Supercontinent . When I am finished, I will move the new Supercontinent article to Wikipedia. This process takes me a month or two. User Bettymnz4 Bettymnz4 User talk Bettymnz4 talk 22 34, 5 April 2010 UTC Unreferenced list date January 2009 This is a list of supercontinent supercontinents . The list is written in reverse chronological order stratolithic order comprising nearly all land at the time. Present day Afro Eurasia 5 mya present day Americas America 15 mya present day Eurasia 60 mya present day Beringia dependent Eurasia North America 55 mya end of last glacial maximum Eurasia America North and South 15 mya end of last glacial maximum Afro Eurasia America Afro Eurasia America 5 mya end of last glacial maximum fossil evidence indicates intermittent existence from 55 mya, now dependent on sea level. Prehistoricals Gondwana 300 30 million years ago Laurasia 300 60 million years ago Pangaea 300 180 million years ago Euramerica 300 million years ago Oldredia 418 380 million years ago Pannotia , also called Vendian 600 540 million years ago Rodinia 1.1 Giga annum Ga 750 million years ago Columbia supercontinent Columbia , also called Nuna 1.8 1.5 Ga ago Nena supercontinent Nena 1.8 Ga Kenorland 2.7 Ga ago . Neoarchean sanukitoid cratons and new continental crust formed Kenorland. Protracted tectonic magna plume rifting occurred 2.48 to 2.45 Ga and this contributed to the Paleoproterozoic glacial events in 2.45 to 2.22 Ga. Final breakup occurred 2.1 Ga. Ur continent Ur 3 Ga ago . Classified as the earliest known landmass. Ur, however, was probably the largest, perhaps even the only continent three billion years ago. While probably not a supercontinent, one can argue that Ur was a supercontinent ... DEFAULTSORT List Of Supercontinents Category Supercontinents Category Proterozoic ca Supercontinent ... more details
File Siberian craton location.jpg thumb current location in Asia Siberia is the craton located in the heart of the region of Siberia . Siberia or Angaraland or simply Angara is today the Central Siberian Plateau . It is an extremely ancient craton that formed an independent continent before the Permian period. Partial history of Siberia in chronological order 2.5 billion years ago Siderian , Siberia was part of a continent of Arctica , along with the Canadian Shield 1.1 billion years ago Stenian , Siberia became part of the major supercontinent of Rodinia . 750 million years ago Cryogenian , Rodinia broke up, and Siberia became part of the minor supercontinent of Protolaurasia . 600 million years ago Ediacaran , Protolaurasia became part of the major southern supercontinent of Pannotia . 550 million years ago Ediacaran , Pannotia broke up and Protolaurasia split up and became the continents of Laurentia , Baltica , and Siberia. Cambrian , Siberia was an independent continent. Carboniferous , Siberia collided with the minor continent of Kazakhstania . Permian , Siberia, and Kazakhstania collided with Baltica , thus completing the formation of the supercontinent Pangaea . Siberian Traps formed. Jurassic , Pangaea split up, Siberia stays with Laurasia . Cretaceous , Laurasia gradually splits up, Siberia remains part of present day northeastern Eurasia . Present, Siberia was part of forming minor supercontinent Afro Eurasia . 250 million years from now Siberia may be in the subtropical region and part of a new supercontinent of Pangaea Ultima . External links http jan.ucc.nau.edu rcb7 paleogeographic asia.html Asia History Page detailing the history of Siberia as well as other parts of Asia. Continents of the world Category Historical continents Category Tectonic plates Category Historical tectonic plates Category Siberia Category Natural history of Asia Category Northeast Asia palaeo geo stub cs Sibi kontinent de Sibiria es Siberia continente eu Siberia kontinentea it ... more details
Image Positions of ancient continents, 550 million years ago.jpg thumb 250px East Antarctica with Australia top during the early Paleozoic The East Antarctic craton is an ancient craton that forms most of Antarctica . The East Antarctic craton was part of the Nena supercontinent Nena supercontinent 1.8 billion years ago. During the early Paleozoic Era East Antarctica joined the Gondwana supercontinent . Breakup During the Mesozoic breakup of Gondwanaland, East Antarctica separated from other major continental areas. During and following this breakup the tectonic terranes of West Antarctica were added to form the current continent of Antarctica. References http pangea.stanford.edu research crustal abst.txt Stanford University abstract Continents of the world Category Natural history of Antarctica Category Geography of Antarctica Category Cratons Category Prehistory of Antarctica Antarctica stub Regional geology stub it Cratone dell Antartide Orientale ja no Det st antarktiske skjold pt Crat o da Ant rtida Oriental zh ... more details
Nuna is a series of solar powered vehicle. Nuna may also refer to A popping bean see common bean Nuna Star Wars Columbia supercontinent Nuna, Poland Nuna International BV Nuna International BV baby products disamb de Nuna fr Nuna homonymie nl Nuna ... more details
wiktionary Pangaea Pangaea may refer to Pangaea , Earth s most recent global supercontinent Pangaea Ultima , possible future global supercontinent Pangea cable system , a submarine telecommunications cable system connecting the Netherlands and Denmark to the UK Pangea Software , a Macintosh game company Pangea.org , a non profit social support organisation in Spain Pangea Recordings , a record label Pangaea mountain , a mountain in Greek mythology, involved in the war between the Titans and the Greek gods Pangaea album Pang a , a 1975 album by Miles Davis Pangea Day Pangaea band , an Australian punk metal band PANGAEA data library , a data system for earth system science disambig de Pangaea Begriffskl rung es Pangea desambiguaci n fr Pang e homonymie it Pangea disambigua ja ... more details
Confuse World Ocean File Pangaea.png right 200px thumb The supercontinent Pangaea surrounded by the superocean Panthalassa. A superocean is an ocean which surrounds a supercontinent . It is less commonly defined as any ocean larger than the current Pacific Ocean . ref cite book last McMenamin first Mark A. coauthors Dianna L. McMenamin title The Emergence of Animals origdate 1990 01 15 publisher Columbia University Press isbn 0 231 06647 3 ref Named global superoceans include Mirovia , which surrounded the supercontinent Rodinia , and Panthalassa , which surrounded the supercontinent Pangaea . Pannotia and Columbia supercontinent Columbia , along with landmasses before Columbia such as Ur continent Ur , were also surrounded by superoceans. As surface water moves unobstructed east to west in superoceans, it tends to warm from the exposure to sunlight so that the western edge of the ocean is warmer than the eastern. Additionally, seasonal changes in temperature, which would have been significantly more rapid inland, probably caused powerful monsoon s. In general, however, the mechanics of superoceans are not well understood. ref cite book last Martin first Ronald title One Long Experiment origdate 1998 04 08 publisher Columbia University Press isbn 0 231 10905 9 chapter Cycles and Secular Trends ref List of superoceans Expand list date August 2008 Mirovia Rodinia Pan African Ocean Pannotia Panthalassa Pangaea Mega Pacific Ocean Pangaea Ultima Super Atlantic Ocean Amasia continent Amasia Super Indian Ocean Amasia continent Amasia See also Portal box Environment Ecology Geography Weather br References references Category Historical oceans Category Plate tectonics tectonics stub palaeo geo stub ar es Superoc ano lv Superoke ns nl Superoceaan nn Superhav ru zh ... more details
and Gondwana . Later, altered landmasses would recombine to form the most recent supercontinent, Pangaea ... Pannotia work UCMP Glossary accessdate 2006 03 12 ref Another term for the supercontinent that is thought ... in 1994. This term recognizes that the supercontinent of Gondwana, which formed at the end of the Neoproterozoic, was once part of the much larger end Neoproterozoic supercontinent. See also Plate tectonics Supercontinent cycle External links An http Scotese.Com precambr.htm image showing Pannotia according to Christopher Scotese . it is referred to as the late Precambrian Supercontinent in the image ... more details
for the Amberian Dawn single Arctica song Arctica was an ancient continent which formed approximately 2.5 billion years ago in the Neoarchean Era geology era . Arctica consisted of the Canadian Shield Canadian and Siberia continent Siberian Shield geography shield s, and is now roughly situated in the Arctic around the current North Pole . History Arctica joined with the continents Atlantica and Nena supercontinent Nena about one billion years ago to form the supercontinent , Rodinia . With the breakup of the supercontinent, Arctica s fragments have mostly stayed at higher latitudes. Nomenclature Arctica was chosen as a name because since its formation the continent and the cratons that broke away from it have spent most of their time in northerly latitudes. See also List of supercontinents External links Continents of the world Category Historical continents Category Archean Category Proterozoic Category Natural history of Asia Category Natural history of North America Category Prehistory of the Arctic palaeogeography stub ar de Arctica Kontinent fa it Arctica nl Arctica geologie nn Arktika vi Arctica zh ... more details
Earth crustal displacement OR Earth crust displacement may refer to Plate tectonics , scientific theory which describes the large scale motions of Earth s crust. Fault geology , fracture in Earth s crust where one side moves with respect to the other side. Supercontinent cycle , the quasi periodic aggregation and dispersal of Earth s continental crust. Cataclysmic pole shift hypothesis , where the axis of rotation of a planet may have shifted or the crust may have shifted dramatically. disambig ... more details
Earth crustal displacement OR Earth crust displacement may refer to Plate tectonics , scientific theory which describes the large scale motions of Earth s crust lithosphere . Fault geology , fracture in Earth s crust where one side moves with respect to the other side. Supercontinent cycle , the quasi periodic aggregation and dispersal of Earth s continental crust. Cataclysmic pole shift hypothesis , where the axis of rotation of a planet may have shifted or the crust may have shifted dramatically. disambig ... more details
Unreferenced auto yes date December 2009 The Central Lapland Greenstone Belt CLGB is a greenstone belt located in the northern part of the Fennoscandian Shield . The region belongs to Lapland Finland Lapland , northern Finland . The CLGB is part of a much larger belt of Paleoproterozoic greenstones, a cover of metamorphism metamorphosed volcanic and sedimentary rocks that cover the Archean basement, the latter which is representative of the Archaean Karelian craton . Deposition of the cover sequence occurred between about 2.5 annum Ga and 1.8 Ga, thus it preserves information about History of Earth Earth s history from a period that encompass about 700 Ma. Thus, the CLGB records a prolonged and episodic history of rifting , sedimentation and magmatism before the collision and rift closure at about 1.9 Ga. The collision was related to the amalgamation of the supercontinent Columbia supercontinent Columbia . See also List of greenstone belts Coord missing Finland Greenstone belts Category Volcanoes of Finland Category Greenstone belts Category Archean volcanism Category Proterozoic volcanism Category Geology of Finland Category Geologic formations Regional geology stub ... more details
Refimprove date January 2009 The Pan African Ocean is a hypothesized paleo ocean whose closure created the supercontinent of Pannotia . ref cite book last Linnemann first Ulf coauthors R. Damian Nance, Petr Kraft, Gernold Zulauf title The Evolution of the Rheic Ocean From Avalonian Cadomian Active Margin to Alleghenian Variscan Collision publisher Geological Society of America year 2007 page 28 isbn 9780813724232 url http books.google.ca books?id dj9C VvmDwC&pg PA28 ref The ocean may have existed before the break up of the supercontinent of Rodinia . The ocean closed before the beginning of the Phanerozoic Eon, when the Panthalassa ocean expanded, and was eventually replaced by it. See also Pan African orogeny Mirovia References reflist Category Historical oceans Category Proterozoic palaeo geo stub nl Pan Afrikaanse Oceaan nn Det panafrikanske havet zh ... more details
Novopangea is a possible future supercontinent , postulated by Roy Livermore, now at the University of Cambridge, in the late 1990s, assuming closure of the Pacific, docking of Australia with eastern Asia, and northward motion of Antarctica. Amasia continent Amasia , Novopangea, and Pangaea Ultima are discussed in the book Supercontinent by Ted Nield, and illustrated in Pangaea, the comeback in the New Scientist magazine issued 20 October 2007. ref name williams nield cite news author Williams, Caroline Nield, Ted title Pangaea, the comeback work NewScientist date 2007 10 20 url http www.science.org.au nova newscientist 104ns 011.htm accessdate 2009 08 28 ref Novopangea was shown in the series of The Future Is Wild . References reflist Continents of the world Category Theoretical continents Category Supercontinents palaeo geo stub not really palaeo , but it s the most appropriate stub type lv Novopangeja su Novopang a zh ... more details
Other uses Amasia disambiguation Amasia Amasia is the working title ref cite news author Bowdler, Neil title America and Eurasia to meet at north pole work BBC News date 2012 02 08 url http www.bbc.co.uk news science environment 16934181 accessdate 2012 02 08 ref for a possible future supercontinent that could be formed by the merger of Asia and North America . This prediction relies mostly on the fact that the Pacific Plate is already subduction subducting under Eurasia and North America , a process which if continued will eventually cause the Pacific to close. Meanwhile, because of the Atlantic Ocean Atlantic mid ocean ridge , North America would be pushed westward. Thus, the Atlantic at some point in the future would be larger than the Pacific. In Siberia , the boundary between the Eurasian Plate Eurasian and North American Plate s has been stationary for millions of years. The combination of these factors would cause North America to be combined with Asia, thus forming a supercontinent. A February 2012 study predicts Amasia will form over the North Pole, in about 50 million to 200 million years. ref Smith Kerri, http www.nature.com news supercontinent amasia to take north pole position 1.9996 Supercontinent Amasia to take North Pole Position , Nature.com, 8 Feb 2012 ref Roy Livermore, now at the University of Cambridge, in the late 1990s predicted a supercontinent called Novopangea , assuming closure of the Pacific, docking of Australia with eastern Asia, and northward motion of Antarctica. Amasia, Novopangea , and Pangaea Ultima Pangea Proxima are discussed in the book Supercontinent by Ted Nield, and illustrated in Pangaea, the comeback in the New Scientist magazine issued 20 October 2007. ref name williams nield cite news author Williams, Caroline Nield, Ted title Pangaea, the comeback work NewScientist date 2007 10 20 url http www.science.org.au nova newscientist 104ns 011.htm accessdate 2009 08 28 ref References reflist Continents of the world Category Theo ... more details
The Statherian IPAc en icon s t r i n lang el statheros , meaning stable, firm is the final geologic geologic period period in the Paleoproterozoic era geology Era and lasted from 1800 annum Mya to 1600 Mya million years ago . Instead of being based on stratigraphy , these dates are defined chronometrically. The period is characterized on most continent s by either new continental shelf platforms or final craton ization of fold belt s. The supercontinent Columbia supercontinent Columbia formed at the beginning of this period. References cite web title Statherian Period work GeoWhen Database url http www.stratigraphy.org geowhen stages Statherian.html accessdate January 5, 2006 archiveurl http web.archive.org web 20060512043023 http www.stratigraphy.org geowhen stages Statherian.html Bot retrieved archive archivedate May 12, 2006 cite journal author James G. Ogg title Status on Divisions of the International Geologic Time Scale journal Lethaia year 2004 volume 37 issue 2 pages 183 199 doi 10.1080 00241160410006492 Proterozoic eon Geological history c Category Geologic time scale Category Proterozoic geochronology stub br Statherieg ca Estateri de Statherium es Per odo Estat rico fr Stath rien ko it Statheriano nl Statherium ja pt Statheriano ru sh Staterij uk vi K Statheros zh ... more details
The Calymmian from Greek language Greek calymma , cover is the first geologic geologic period period in the Mesoproterozoic Era geology Era and lasted from 1600 annum Mya to 1400 Mya million years ago . Instead of being based on stratigraphy , these dates are defined chronometrically. The period is characterised by expansion of existing platform cover s, or by new continental shelf platform s on recently craton ized basements. The supercontinent Columbia supercontinent Columbia broke up during the Calymmian some 1500 Mya. References cite web title Calymmian Period work GeoWhen Database url http www.stratigraphy.org geowhen stages Calymmian.html accessdate January 5, 2006 archiveurl http web.archive.org web 20060512210318 http www.stratigraphy.org geowhen stages Calymmian.html Bot retrieved archive archivedate May 12, 2006 cite journal author James G. Ogg title Status on Divisions of the International Geologic Time Scale journal Lethaia year 2004 volume 37 issue 2 pages 183 199 doi 10.1080 00241160410006492 Proterozoic eon Geological history c Category Geologic time scale Category Proterozoic geochronology stub br Kalymnieg ca Calimmi de Calymmium es Per odo Cal mmico eo Kalimio fr Calymnien ko it Calymmiano nl Calymmium ja nn Calymmium pl Kalim pt Calymmiano ru sh Kalimij uk vi K Calymma zh ... more details
italic title about plants the supercontinent Columbia supercontinent taxobox name Hudsonia image Hudsonia tomentosa, Pancake Bay PP.jpg image caption Hudsonia tomentosa , Pancake Bay Provincial Park Pancake Bay , Ontario regnum Plantae unranked divisio Angiosperms unranked classis Eudicots unranked ordo Rosids ordo Malvales familia Cistaceae genus Hudsonia genus authority Carolus Linnaeus L. subdivision ranks Species subdivision See text. Hudsonia Goldenheather , Poverty grass is a small genus of three species of flowering plant s in the family Cistaceae , native to North America . They are typical of sand dune habitats. They are evergreen subshrub s growing to 20 cm tall. class wikitable Species Scientific name English name Hudsonia ericoides Hudsonia montana syn. H. ericoides subsp. montana Golden Mountain Heather Hudsonia tomentosa Beach heath References http plants.usda.gov java profile?symbol HUDSO USDA Plant Profile Hudsonia See also Sand dune stabilization Category Cistaceae Category Flora of North America Malvales stub ca Hudsonia es Hudsonia pt Hudsonia ... more details
unreferenced date March 2008 The Ural Ocean also called the Uralic Ocean was a small, ancient ocean that was situated between Siberia continent Siberia and Baltica . The ocean formed in the Ordovician Late Ordovician epoch, when large islands from Siberia collided with Baltica, which was now part of a minor supercontinent of Euramerica . The islands also caused Ural Ocean s precursor, Khanty Ocean to close. By the Devonian Period, however, Ural Ocean begins to shrink because the Siberian continent and Kazakhstania microcontinent were closing in to Baltica. In the Latest Devonian to Mississippian periods, Ural Ocean became a seaway . Until the three collided in the Carboniferous , it created the Ural Mountains , completely closing the ocean, and forming the Pangaea supercontinent. See also Ural Orogeny Panthalassic Ocean Proto Tethys Ocean Rheic Ocean Indian Ocean Category Historical oceans Category Ordovician Category Silurian Category Devonian Category Carboniferous Category Natural history of Europe Category Natural history of Asia palaeo geo stub es Oc ano Ural nn Uralhavet uk vi i d ng Ural zh ... more details
Encyclopedia
top
