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Latest Rift Stories

Newly exposed fault scarp
2014-03-25 08:07:09

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre Rift valleys are large depressions formed by tectonic stretching forces. Volcanoes often occur in rift valleys, within the rift itself or on the rift flanks as e.g. in East Africa. The magma responsible for this volcanism is formed in the upper mantle and ponds at the boundary between crust and mantle. For many years, the question of why volcanoes develop outside the rift zone in an apparently unexpected location offset by tens of...

2014-03-03 15:21:05

A failed Saharan Atlantic Ocean rift zone Break-up of the supercontinent Gondwana about 130 Million years ago could have lead to a completely different shape of the African and South American continent with an ocean south of today's Sahara desert, as geoscientists from the University of Sydney and the GFZ German Research Centre for Geosciences have shown through the use of sophisticated plate tectonic and three-dimensional numerical modelling. The study highlights the importance of rift...

2012-12-28 15:12:05

Articles posted online 13—17 December 2012 New Geosphere articles include additions to several special issues "Results of IODP Exp313: The History and Impact of Sea-level Change Offshore New Jersey"; "The ANDRILL McMurdo Ice Shelf (MIS) and Southern McMurdo Sound (SMS) Drilling Projects"; "Exploring the Deep Sea and Beyond: Contributions to Marine Geology in Honor of William R. Normark"; and "CRevolution 2: Origin and Evolution of the Colorado River System II." Topics include: 1....

New Age Suggested For East African Rift
2012-03-28 09:33:57

A new study published in the journal Nature Geoscience is suggesting that the human species may have taken much longer to evolve thanks to plate tectonics that changed Africa´s landscape millions of years before experts previously believed. Scientists from James Cook University, Ohio University, and Michigan State University said their findings show evidence that a major tectonic event occurred in East Africa as far back as 25 - 30 million years ago, reshaping large rivers such as the...

2012-01-26 13:39:01

The new issue of LITHOSPHERE is online now. Papers present evidence for the on-going re-shaping of the Rocky-Mountain—Colorado Plateau region by young uplift driven from below (mantle buoyancy), research in the Aegean Sea that documents a newly defined extensional fault system, and study of the hydrologic heterogeneity of faulted and fractured sediment layers with implications for similar rocks to affect the flow of moisture downward toward the spent nuclear fuel geologic repository at...

2010-06-16 23:12:51

New research reveals that when two parts of the Earth's crust break apart, this does not always cause massive volcanic eruptions New research reveals that when two parts of the Earth's crust break apart, this does not always cause massive volcanic eruptions. The study, published today in the journal Nature, explains why some parts of the world saw massive volcanic eruptions millions of years ago and others did not. The Earth's crust is broken into plates that are in constant motion over...

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2009-12-22 14:51:27

A study of the structure and evolution of the Gulf of Corinth rift in central Greece will increase scientific understanding of rifted margin development and the tectonic mechanisms underlying seafloor spreading and deformation of the Earth's crust. "The Gulf of Corinth rift is an ideal natural laboratory for studying early rift history," said Dr Lisa McNeill of the University of Southampton's School of Ocean and Earth Science (SOES) at the National Oceanography Centre, Southampton (NOCS):...

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2009-11-03 08:54:55

Geologists Show that Seafloor Dynamics Are at Work in Splitting African Continent In 2005, a gigantic, 35-mile-long rift broke open the desert ground in Ethiopia. At the time, some geologists believed the rift was the beginning of a new ocean as two parts of the African continent pulled apart, but the claim was controversial. Now, scientists from several countries have confirmed that the volcanic processes at work beneath the Ethiopian rift are nearly identical to those at the bottom of the...

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2009-02-12 09:03:11

New research helps us understand the incredible forces and oil and gas reserves that lie hidden beneath the Earth's surface It was the geological collision between India and Asia millions of years ago that created one of the world's most distinctive places: The area around Lake Baikal in Siberia, which contains 20 percent of the world's fresh water reserves and a unique display of plant- and wildlife. That is the conclusion reached by two Danish researchers from the University of Copenhagen,...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.