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Earth�s Mantle News | Earth�s Mantle Current Events
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News from Cancer: Risk factors for deadly form of lymphoma
A new study indicates that the incidence of mantle cell lymphoma, an aggressive type of non-Hodgkin's lymphoma, is on the rise, most frequently striking men, Caucasians and older individuals.   view more (2008-07-07)

Super deep rock formation and upper mantle move in concert
European Highlight from Geophysical Research Letters (GRL) In a finding that contradicts conventional wisdom, results from a new technique to survey the super-deep upper mantle of southern Africa show that underground volcanic rock shifted with the lithospheric plates in the area. Previously,... view more (2002-03-06)

Patterns on tropical marine mollusk shell mirror gene expression patterns
Scientists have identified a group of genes that control the formation of shapes and colour patterns on the shell of the tropical marine mollusc referred to as 'abalone'.   view more (2006-11-22)

Friction Inside The Earth Is A Source Of Heat
There is high temperature inside our planet and the reason is not known yet. A common belief that the Earth`s interior is heated by radioactive elements is now doubted of. Professor Felix Letnikov from Irkutsk Institute of the Earth`s Crust have proposed an idea that the heat is formed in the outer... view more (2002-06-28)

Journey to the center of the Earth -- Imperial scientists explain tectonic plate motions
The first direct evidence of how and when tectonic plates move into the deepest reaches of the Earth is published in Nature today. Scientists hope their description of how plates collide with one sliding below the other into the rocky mantle could potentially improve their ability to assess... view more (2008-02-22)

What Goes On Underneath Your Feet?
It is generally assumed that heat from Earth's core and mantle, due to the low thermal conductivity of the latter, is transferred to the outer part mainly by convection. This implies swirling movement of an immense amount of hot material, which is behind the dynamics of Earth's interior.... view more (2004-07-16)

Mercury's shifting, rolling past
Patterns of scalloped-edged cliffs or lobate scarps on Mercury's surface are thrust faults that are consistent with the planet shrinking and cooling with time. However, compression occurred in the planet's early history and Mariner 10 images revealed decades ago that lobate scarps are among the... view more (2008-03-18)

Seismologists detect a sunken slab of ocean floor deep in the Earth
Halfway to the center of the Earth, at the boundary between the core and the mantle, lies a massive folded slab of rock that once formed the ocean floor and sank beneath North America some 50 million years ago.   view more (2006-05-18)

UBC study may solve age-old mystery of missing chemicals from Earth's mantle
Observations about the early formation of Earth may answer an age-old question about why the planet's mantle is missing some of the matter that should be present, according to UBC geophysicist John Hernlund.   view more (2007-12-06)

New clues about the Earth's movements
Synchrotron light has just revealed new clues about how the Earth moves. A team of scientists (Dubrovinsky et al) from four different countries and different fields of expertise have come to the ESRF to study materials submitted to extreme conditions of pressure and temperature, similar to those... view more (2003-03-07)

Hotspots or Not? Isotopes Score One for Traditional Theory
One great beauty of plate tectonics theory is that it explains so many geological phenomena at one time. But plate tectonics could not explain the location of many volcanic islands - Hawaii, the Azores or the Galapagos Islands, often called "hotspots" - far from the edge of tectonic... view more (2006-12-07)

How rusty is the Earth?
An iron object lying around outside quickly turns rusty. Iron metal always has to be combined with some other elements or coated with paint to stop it corroding. The reason for this is that iron metal is unstable in the presence of the oxygen in the Earth's atmosphere. It reacts with the iron to... view more (2004-06-10)

Journey to the center of the earth: Discovery sheds light on mantle formation
Uncovering a rare, two-billion-year-old window into the Earth's mantle, a University of Houston professor and his team have found our planet's geological history is more complex than previously thought.   view more (2008-04-11)

Study reconciles long-standing contradiction of deep-earth dynamics
Researchers at Columbia University's Lamont-Doherty Earth Observatory recently resolved a long-standing contradiction about the workings of the deep Earth.   view more (2005-08-25)

Atoms under the mantle
At a depth of 2900 kilometres, the layer between the Earth's mantle and its core has always intrigued geophysicists because they are unable to explain the seismic data it generates.   view more (2007-03-07)

Researchers locate mantle's spin transition zone, leading to clues about Earth's structure
Researchers have located the spin transition zone of iron in Earth's lower mantle, a discovery which has profound geophysical implications.   view more (2007-09-24)

Complex structure observed in Tonga mantle wedge has implications for the evolution of volcanic arcs
The subduction zones where oceanic plates sink beneath the continents produce volcanic arcs such as those that make up the "rim of fire" around the Pacific Ocean.   view more (2007-04-13)

Tectonic plates act like variable thermostat
Like a quilt that loses heat between squares, the earth's system of tectonic plates lets warmth out at every stitch.   view more (2007-08-14)

Searching out the small - and his massive mate
The male half of one of the strangest marine couples has been seen alive for the first time. The blanket octopus shows the greatest size difference between sexes of any large animal, with the male 100 times smaller and 40,000 times lighter than the female. University of Leeds researcher, Dr Tom... view more (2003-01-31)

Looking deep in Earth, researchers see upwellings that could be root of volcanic islands
Deep within Earth, researchers are finding hints of exotic materials and behaviors unrivaled anywhere else on the planet. Now a team of researchers is making connections between the dynamic activities deep inside Earth and geologic features at its surface.   view more (2005-06-01)

Scientists reveal fate of Earth's oceans
Scientists at The University of Manchester have uncovered the first evidence of seawater deep inside the Earth shedding new light on the fate of the planet's oceans, according to research published in Nature.   view more (2006-05-11)

New properties of the very deep Earth discovered
To truly understand some of the movement we see at the Earth's surface, scientists have to probe deep into the interior.   view more (2006-04-28)

Volcanic plumbing dictates development of deep-sea hydrothermal vents
After years of results that repeatedly dogged him, University of Oregon geologist Douglas R. Toomey decided to follow the trail of data surfacing from the Pacific Ocean. In doing so, he and his collaborators may have altered long-held assumptions involving plate tectonics on the ocean floor.   view more (2007-03-22)

X-rays use diamonds as a window to the center of the Earth
Diamonds from Brazil have provided the answers to a question that Earth scientists have been trying to understand for many years: how is oceanic crust that has been subducted deep into the Earth recycled back into volcanic rocks?   view more (2008-08-13)

Seismologists measure heat flow from Earth's molten core into the lower mantle
For the first time, scientists have directly measured the amount of heat flowing from the molten metal of Earth's core into a region at the base of the mantle, a process that helps drive both the movement of tectonic plates at the surface and the geodynamo in the core that generates Earth's... view more (2006-11-27)
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