HOME >> BIOLOGY >> NEWS
Years of research, thought lead geologist to propose new supercontinent Columbia

CHAPEL HILL In 1912, German meterorologist Alfred Wegener proposed a theory that first angered and then intrigued scientists and others ever since.

Continents shifted around at far slower than a snails pace throughout Earths history like pieces of a puzzle, drifting together and pulling apart to form oceans, he said. Part of the eventual fascination with his idea came from globe-gazers observation that continents such as Africa and South America look like they could fit together snugly.

Following up on Wegener and others work, a University of North Carolina at Chapel Hill geologist believes he has discovered a new, long-vanished supercontinent. That early amalgamation of most of the world's continents in one vast land area later split up several times, reformed and divided again to begin shaping Earths current continents.

The primeval supercontinent, which Professor John J.W. Rogers named Columbia, existed more than 1.5 billion years ago and is older than any of several giant landmasses previously proposed.

I named the supercontinent Columbia because some of the best evidence for its existence is in the Columbia River region of western North America, Rogers said. Starting at about 1.8 billion years ago, all of the continents existing at that time began to collide into a single land area.

Rogers describes his ideas in a scientific paper with fellow geologist Dr. M. Santosh of Kochi University in Japan published in the current issue of the Gondwana Research, a quarterly journal devoted to studies of Earths early land masses.

The east coast of India became attached to western North America, with southern Australia against western Canada, he said. Most of present South America rotated so that the western edge of Brazil lined up with eastern North America, forming a continental margin that extended into the southern edge of Scandinavia.

This formed an area that stretched about 8,000 miles from southern South Ameri
'"/>

Contact: David Williamson
david_williamson@unc.edu
919-962-8596
University of North Carolina at Chapel Hill
18-Mar-2002


Page: 1 2

Related biology news :

1. Fossilized Emu Eggshells Give Clues To 65,000 Years Of Vegetation And Climate Changes In Australia
2. Earliest Modern Tree Lived 360-345 Million Years Ago
3. For First Time In 40 Years National Jewish Researchers Report Chronic Beryllium Disease Caused By Extremely Low Levels Of Exposure
4. TB Is Still Rife Fifty Years After The Study Which Found A Cure
5. Possible Human Ancestors In Spain 780,000 Years Ago
6. Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
7. Fossil Evidence Of Worms Over One Billion Years Old Reported In Science
8. 14,000 Years Of Atmospheric Lead Emissions Recorded In Swiss Peat Bog As Published In Science Magazine
9. Native Fish Found In U.S. Lake Ontario For First Time In 50 Years
10. Long-Term Study Looks At HIV Positive Men With Few Signs Of Disease Progression, 10-18 Years After Seroconversion
11. Researchers Investigate Years Before Menopause

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/23/2017)... ITHACA, N.Y. , June 23, 2017 /PRNewswire/ ... leader in dairy research, today announced a new collaboration ... reduce the chances that the global milk supply is ... dairy project, Cornell University has become the newest academic ... Supply Chain, a food safety initiative that includes IBM ...
(Date:5/16/2017)... , May 16, 2017  Veratad Technologies, LLC ... of online age and identity verification solutions, announced today ... Identity Conference 2017, May 15 thru May 17, 2017, ... Building and International Trade Center. Identity ... globe and in today,s quickly evolving digital world, defining ...
(Date:4/24/2017)... , April 24, 2017 Janice ... partner with  Identity Strategy Partners, LLP (IdSP) , ... or without President Trump,s March 6, 2017 ... Entry , refugee vetting can be instilled with greater ... (Right now, all refugee applications are suspended by ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... ... eye wash is a basic first aid supply for any work environment, but most personal ... rinse first if a dangerous substance enters both eyes? It’s one less decision, and likely ... dual eye piece. , “Whether its dirt and debris, or an acid or alkali, getting ...
(Date:10/11/2017)... Md. (PRWEB) , ... October 11, 2017 , ... ... digital pathology, announced today it will be hosting a Webinar titled, “Pathology is ... Advanced Pathology Associates , on digital pathology adoption best practices and how Proscia ...
(Date:10/11/2017)... the Netherlands and LAGUNA HILLS, Calif. ... The Institute of Cancer Research, London ... use MMprofiler™ with SKY92, SkylineDx,s prognostic tool to risk-stratify patients ... trial known as MUK nine . The University of ... trial, which is partly funded by Myeloma UK, and ICR ...
(Date:10/11/2017)... ... October 11, 2017 , ... A new study published in ... and fresh in vitro fertilization (IVF) transfer cycles. The multi-center matched ... , After comparing the results from the fresh and frozen transfer cohorts, the ...
Breaking Biology Technology:
Cached News: