
	Where results make sense

Topic: Rodinia

Related Topics

Atlantica

Nena (supercontinent)

Baltica

Pannotia

Ur (continent)

Laurentia

Supercontinent

Laurasia

Kenorland

Plate tectonics

Mesoproterozoic

Arctica

List of plate tectonics topics

Euramerica

Pangaea

In the News (Mon 23 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Rodinia
		In Geology, Rodinia is used to refer to a 'supercontinent' that formed and broke up in the Neoproterozoic.
		Rodinia is thought to have formed about 1000 million years ago and to have embodied most or all of the Earth's continents.
		Rodinia is thought to have broken up into eight continents around 600 million years ago.
	www.ebroadcast.com.au /lookup/encyclopedia/ro/Rodinia.html (121 words)

	Rodinia -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-21)
		In (A science that deals with the history of the earth as recorded in rocks) geology, Rodinia is used to refer to a (Click link for more info and facts about supercontinent) supercontinent that both formed and broke up in the (Click link for more info and facts about Neoproterozoic) Neoproterozoic.
		Rodinia is thought to have formed about 1 billion years ago and to have embodied most or all of (The 3rd planet from the sun; the planet on which we live) Earth's existing (Click link for more info and facts about continental crust) continental crust.
		Rodinia is a (A native or inhabitant of Bulgaria) Bulgarian (Rodina) and (A native or inhabitant of Russia) Russian word meaning "homeland", which is used in various contexts.
	www.absoluteastronomy.com /encyclopedia/r/ro/rodinia.htm (240 words)

	Rodinia - Wikipedia
		Rodinia (vom russischen Родина für Heimatland) war ein Superkontinent im Proterozoikum, einem Äon des Präkambriums.
		Auch die Position und Existenz von Rodinia wird nach wie vor diskutiert, er wird allerdings häufig als der älteste bekannte Superkontinent bezeichnet.
		Insbesondere Geophysiker vermuten aber, dass es schon vor Rodinia Superkontinente gegeben hat (z.
	de.wikipedia.org /wiki/Rodinia (139 words)

	114
		To rigorously test Rodinia reconstructions and investigate its assembly and breakup, it is important to establish a set of key (well-defined and precisely dated) paleomagnetic poles for Laurentia with which to compare paleopoles of similar quality from the other fragments.
		Rodinia was one of the earliest supercontinents, being formed at 1.3-1.0 Ga, and subsequently fragmented at 750-600 Ma.
		It was the end of the Neoproterozoic, it was the beginning of the Phanerozoic, it was the age of Rodinia, it was the age of Gondwana, it was the epoch of global glaciation, it was the epoch of true polar wander.
	camb.demonhosting.co.uk /JConfAbs/4/114.html (13815 words)

	In Geology, Rodinia is used to refer to a 'supercontinent' that formed and broke up in the Neoproterozoic
		The continent of Rodinia was the dominant landmass of the Earth for at least 350 million years.
		The configuration of the lands of Rodinia is a matter of considerable debate.
		Rodinia was a stark and hostile land throughout its history.
	www.washington.edu /burkemuseum/geo_history_wa/Dance%20of%20the%20Giant%20Continents.htm (2154 words)

	Rodinia (Site not responding. Last check: 2007-10-21)
		Rodinia is thought to have formed about 1000 million years ago and to have embodiedmost or all of Earth's continents.
		Rodinia is thought to have broken up intoeight continents around 600 million years ago.
		Themovements of continental masses since the breakup of Rodinia are fairly well understood and continue to be the subject ofresearch.
	www.therfcc.org /rodinia-137981.html (119 words)

	Prelude
		Rodinia straddled the equator and reached most of the way from pole to pole.
		Rodinia was in existance for about 350 million years - from about 1.2 billion years ago to about 750 million years ago.
		This artist’s conception of the supercontinent Rodinia as it began to fragment is by Tomo Narashima.
	www.jamestown-ri.info /prelude.htm (1541 words)

	Rodinia
		Rodinia began forming ~1,300 Ma from the amalgamation of three or four pre-existing continents, in an event known as the Grenville Orogeny, consolidating perhaps 1,100 to 1,000 Ma.
		The Grenville Province is a terrane of metamorphism and deformation running from Labrador to Texas, once comprising the southern coast of Laurentia.
		Ar/Ar dating of gabbros and basalts from the Nova Floresta Formation in western Brazil, parts of the Amazon craton which collided with the region that is now Texas during the formation of Rodinia (Llano Uplift), have yielded dates around 1,200 Ma (Tohver et al.
	www.peripatus.gen.nz /paleontology/Rodinia.html (742 words)

	ESS 301 - Lecture Key Points (Site not responding. Last check: 2007-10-21)
		Snowball Earth ended with the addition of C02 to the atmosphere from the volcanic eruptions that signal the breakup of the supercontinent Rodinia, about 700 million years ago.
		The ancient rocks to the West, including half the Belt Rocks, were rifted away with the breakup of Rodinia.
		What is now the Northwest was part of the Rodinia interior...but with the rifting, the Northwest found itself at a new plate edge with a growing ocean off to the West.
	staff.washington.edu /sechern/ess301/key/030411.html (223 words)

	Rodinia (Site not responding. Last check: 2007-10-21)
		The Rodinia supercontinent formed approximately 1 Ga (billion years ago) due to the subduction of ocean basins followed by a series of continental collisions.
		The Rodinia supercontinent, situated about the South Pole, is thought to have persisted over 250 million years.
		Supercontinent rifting and breakup occurred approximately 725 Ma, producing new ocean basins (e.g.
	www.uwsp.edu /geo/faculty/hefferan/Geol106/CLASS4/rodinia.htm (108 words)

	[HOME] - Rodinia Minerals
		Rodinia Minerals is a junior resource company well positioned to take advantage of the opportunities in uranium exploration and development world-wide.
		Rodinia’s current focus is on the expansion of the Workman Creek deposit and the development of the numerous areas of interest that have been recently staked by the Company.
		Greenhouse gases such as carbon dioxide are produced in the burning of fossil fuels, the source of about 80 per cent of the world's energy.
	www.rodiniaminerals.com (149 words)

	Rodinia (Site not responding. Last check: 2007-10-21)
		En la geología, Rodinia se utiliza para referir a un supercontinent que formó y adaptó hacia arriba el Neoproterozoic.
		Rodinia se piensa para haber formado hace cerca de 1000 millones de años y para haber incorporado la mayoría o toda la corteza continental existente de la tierra.
		Rodinia se piensa para haberse roto hacia arriba en ocho continentes hace alrededor 750 millones de años.
	www.yotor.net /wiki/es/ro/Rodinia.htm (158 words)

	Global cooling froze seas for millions of years, says new study - JAMAICAOBSERVER.COM
		At the time, all the Earth's future continents were glommed together in a super-continent dubbed Rodinia, an entity so vast that rainfall, brought by winds from the oceans, failed to travel far inland.
		According to the simulation, before Rodinia broke up around 800 million years ago, C02 concentrations were around 1,830 parts per million (ppm); the mean global temperature was 10.8 C (51.5 F); and regions of the Earth that were below freezing point extended down to around 60 degrees in both hemispheres.
		CO2 levels are at 510 ppm; the planet's mean temperature is a frigid two C (35.5 F); and freezing temperatures have migrated towards the mid-latitudes, of 40-45 degrees.
	www.jamaicaobserver.com /news/html/20040319T190000-0500_57381_OBS_GLOBAL_COOLING_FROZE_SEAS_FOR_MILLIONS_OF_YEARS__SAYS_NEW_STUDY.asp (608 words)

	MSN Encarta - Search Results - Rodinia
		Rodinia, the oldest known supercontinent, which formed about 1,100 million years ago and broke apart about 750 million years ago during the...
		Gondwana and its fragmentation have been reconstructed with some precision, but the birth of this giant continent is much less certain.
		They postulate the existence of an earlier supercontinent, Rodinia, that...
	uk.encarta.msn.com /Rodinia.html (89 words)

	Rodinia Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-21)
		In geology, Rodinia (based on a Russian word for "homeland") refers to the oldest-known supercontinent, which both formed and broke up in the Neoproterozoic.
		Though there is little agreement among paleogeographers on the details, the continental cratons that formed Rodinia appear to have clustered around Laurentia (proto-North America) at Rodinia's core.
		The eight continents that made up Rodinia later re-assembled into another supercontinent called Pannotia and, after that, once more, as Pangaea.
	www.karr.net /encyclopedia/Rodinia (381 words)

	Palaeos Proterozoic: The Proterozoic Era
		Since Dr. Scotese is undoubtedly the best educated of the educated guessers, you may be interested to see his concept of Rodinia at its greatest extent (perhaps 1100 Mya).
		About 900 Mya, Rodinia started to fracture; and the pattern of fragmentation has become fairly well known.
		One could imagine a more peaceful scenario in which Laurentia and Baltica simply cut through the "strait" between Kalahari and East Antarctica, while rotating (either way) to reach their Cambrian positions and orientations.
	www.palaeos.com /Proterozoic/Proterozoic.htm (868 words)

	recpub03
		In detail, the Neoproterozoic reconstructions of Rodinia are unsolved and without them a detailed kinematic history of the birth of gondwana cannot be constructed.
		This paper shows that Gondwana's deposits provide chemical "scents" that can be effectively used to trace the tectonic history of Gondwana; and the heterogenous distribution of Gondwana's ore deposits are used to evaluated Late neoproterozoic reconstructions, which place Laurential against West Gondwana along a common belt of Grenville age rocks.
		Therefore, Rodinia reconstructions which juxtapose East Laurentia against the west coast of South America result in juxtaposition of distinctly different metalliferous crustal blocks.
	web.uct.ac.za /depts/cigces/recpub03.htm (219 words)

	ESS 301 - Spring 2004
		The atmosphere was choked by an abundance of carbon dioxide from the volcanism associated with the breakup of Rodinia; the superhot climate melted all the Earth’s ice causing powerful rivers to carry large boulders such as the ones in the Toby Conglomerate
		Rodinia split apart, volcanism was very widespread, and a lot of carbon dioxide was introduced into the atmosphere.
		Rodinia began to form, the Intermontane Superterrane docked along the Northwest coast, and a lot of sulfur dioxide was introduced into the atmosphere
	staff.washington.edu /sechern/ess301 (2342 words)

	UALR Arkansas Earthquake Center - The Reelfoot Rift - Rodinia, Laurentia, Rifts, Mississippi Embayment, New Madrid ... (Site not responding. Last check: 2007-10-21)
		Sometime around 750 million years ago, Rodinia began to split apart into smaller continents.
		When Rodinia began to split apart, a rift (split) in our region of Laurentia failed to open.
		This rift was detected using geophysical instruments and was named the "Reelfoot Rift." The Reelfoot Rift extends from Illinois soutwest toward the Gulf of Mexico.
	quake.ualr.edu /public/reelfoot.htm (185 words)

	cooltech.iafrica.com \| coolscience When Earth became a snowball
		At the time, all the Earth's future continents were joined in a super-continent dubbed Rodinia, an entity so vast that rainfall, brought by winds from the oceans, failed to travel far inland.
		According to the simulation, before Rodinia broke up around 800 million years ago, C02 concentrations were around 1830 parts per million (ppm); the mean global temperature was 10.8 degrees Celsius; and regions of the Earth that were below freezing point extended down to around 60 degrees in both hemispheres.
		CO2 levels are at 510 ppm; the planet's mean temperature is a frigid two degrees Celsius; and freezing temperatures have migrated towards the mid-latitudes, of 40-45 degrees.
	cooltech.iafrica.com /science/310871.htm (628 words)

	Science Show - 9/12/00: Plate Tectonics
		It means ‘to beget’ and the concept of the people who selected the terms was that this Rodinia supercontinent was the one that begat all subsequent supercontinents.
		At the time, of course, they felt it was probably the oldest one which they could find, but as we’re beginning to realise, it only formed about 1000 million years ago and we’ve got another three and a half million years of earth history to look at before that.
		Now Rodinia is moving back across the equator, this is about 830million years ago and we’re moving down to the instant when the Pacific Ocean formed about 760.
	www.abc.net.au /rn/science/ss/stories/s221393.htm (1058 words)

	SOUTHERN LAURENTIA IN RODINIA: COLLABORATIVE COMPILATION OF A TECTONIC MAP FOR IGCP 440
		The IGCP 440 compilation of 1:10 M maps of all the Rodinia components offers a chance for discussion of the best portrayal of tectonic elements for different cratons, then an evaluation of the best piercing points between cratons.
		Laurentia is proposed to have been at the core of Rodinia because it is rimmed by Neoproterozoic rifted margins.
		The length of these rifted margins is comparable to the combined length of rifted margins for rifted Pangea, hence many Rodinia continents must have nestled against Laurentia prior to 750 Ma.
	gsa.confex.com /gsa/2003AM/finalprogram/abstract_62532.htm (477 words)

	Plate Tectonics and Earth History
		It didn't happen to Pangaea and probably not to Rodinia, the earlier supercontinent.
		Rodinia breaks up about 750 million years ago and most of the component pieces reassemble in a series of collisions to form Gondwanaland over the next 200 million years.
		Laurentia (the core of North America), Baltica (the core of Europe) and the Siberian shield remain as distinct plates.
	www.uwgb.edu /dutchs/EarthSC102Notes/102PTEarthHist.htm (1705 words)

	A REVISED LOOK AT LAURENTIA'S PROTEROZOIC APPARENT POLAR WANDER PATH: IMPLICATIONS FOR PALEOGEOGRAPHY AND THE RODINIA ... (Site not responding. Last check: 2007-10-21)
		The latter section of the path is of particular importance because it corresponds temporally with the life-cycle of the proposed Rodinia supercontinent.
		In general, researchers agree that the Grenville section of Laurentia's APWP loops down through the SW Pacific quadrant; however, the geometry and age progression of the path is as yet undetermined.
		In particular, if one attempts to match APWP geometries between cratonic blocks for the purpose of paleo-reconstructions, it is imperative that the geometry of the paths be constrained for the reconstruction to be valid.
	gsa.confex.com /gsa/2001AM/finalprogram/abstract_19761.htm (384 words)

	Rodinia - Encyclopedia, History, Geography and Biography
		Rodinia is thought to have formed about 1 billion years ago and to have embodied most or all of Earth's existing continental crust.
		This page was last modified 23:04, 12 Jun 2005.
		The article about Rodinia contains information related to Rodinia and See also.
	www.arikah.com /encyclopedia/Rodinia (179 words)

	ScienceWeek (Site not responding. Last check: 2007-10-21)
		Although the mechanisms responsible are controversial, many geoscientists agree that repeated cycles of supercontinent amalgamation and dispersal have not just taken place, but also have had a profound effect on the evolution of the Earth's crust, atmosphere, climate and life over billions of years.
		First, the break-up of Rodinia is heralded by, and accompanied by, the eruption of large basaltic provinces, resulting in an increase of the weatherability of the continental surface and consumption of atmospheric CO2 on the 10^(6)-yr timescale.
		In their simulation, the continental break-up of Rodinia leads to an increase in runoff and hence consumption of carbon dioxide through continental weathering that decreases atmospheric carbon dioxide concentrations by 1320 ppm.
	scienceweek.com /2004/sa040730-5.htm (1424 words)

Try your search on: Qwika (all wikis)