The core of earth pulses at a regular interval of 15 million years, pushing up magma to the surface. This information published in the recent issue of New Scientist is interesting from the point of view of the churning of the milky ocean.
The samundra manthan or the churning of the Milky ocean happens once every chathur yuga, according to Hindu Thought. It happens as the second avatara of Vishnu as Kurma in the Krutha mahayuga.
The recent findings published in New scientist has some close resemblance to Samudra manthan. The findings are in the area of Ice land. This part in the North reminds one of the Devas pulling the rope of the Serpent that is tied to the Meru.
The allegorical information form this is that Meru is the central core of the planet earth.
It is rotated to and fro by the underground forces / stress in the northern and southern hemisphere, the North signifying Devas and the South signifying asuras!.
As a result of this churning, materials (magma) are thrown up.
What comes out initially is poisonous gases (alahala visham) – the Jyeshta devi or Moodevi! Jyeshta means first-born.
Once that stops coming out, auspicious ones starts coming out one after the other.
Shreedevi signifying wealth and prosperity emerges out.
This correlates to the precious gems and minerals that are found in the solidified magma. Particularly, the most precious gems are found embedded in volcanic lava and the magma only. The very sources for sustenance for life, namely, the rich soil is the ultimate gift of this churning.
This is named as churning of the milky ocean, perhaps because, the precious objects are formed and pushed to the surface just as how cream is formed on the surface of the milk that is churned.
What interests me in this news item is the duration of the ‘pulse’ of this churning!
It is given as 15 million years.
But according to Hindu thought, the churning of the milky ocean takes place once in 4.32 million years (that is the duration of the Chathur maha yuga).
I am waiting for the day when a new version of this news report is made putting the pulse rate at 4 + million years!!
-jayasree
Related posts from this blog:-
http://jayasreesaranathan.blogspot.com/2008/08/samudra-mathan-in-atlantic-ocean.html
http://jayasreesaranathan.blogspot.com/2008/09/vishnu-at-thailand-airport_29.html
http://www.newscientist.com/article/mg20227094.100-magma-pulses-may-reveal-earths-heartbeat.html?DCMP=NLC-nletter&nsref=mg20227094.100
Magma pulses may reveal Earth's 'heartbeat'
- 20 May 2009
- by Catherine Brahic
EARTH may have a heartbeat. Evidence from Hawaii and Iceland hints that the planet's core may be dispatching simultaneous plumes of magma towards the surface every 15 million years or so.
If the hypothesis is true, it would revolutionise our ideas of what's happening far below our feet. Independent scientists contacted by New Scientist were split, with some scornful and others intrigued.
Rolf Mjelde of the University of Bergen and Jan Inge Faleide of the University of Oslo, both in Norway, used seismological data to measure the thickness of Earth's crust between Iceland and Greenland (see map). Iceland is on the Mid-Atlantic Ridge, where magma wells up to form fresh crust.
The measurements allowed Mjelde and Faleide to infer the past flow of magma in the plume generally thought to rise beneath Iceland. When this plume is strong, it thickens the crust that it forms at the surface. They found that the crust has thickened roughly every 15 million years, suggesting the plume pulses at around that frequency.
Regular pulsing of plumes is not a new idea, but when the pair compared their results with similar pulsing in Hawaii, which also sits on a plume, they found a surprising correlation. Data collected by Emily Van Ark and Jian Lin of the Woods Hole Oceanographic Institution, Massachusetts, suggests that Hawaii's plume pulses have coincided with Iceland's (Marine Geophysical Research, DOI: 10.1007/s11001-009-9066-0).
"These two are on very different parts of the Earth, so I don't think the synchrony could be related to something in the mantle," says Mjelde. "It must relate to the core somehow. I can't see any other possibility." This would mean that the Earth's core periodically heats up the overlying mantle, generating synchronised plumes that rise to the surface at widely separated spots.
The synchrony must relate to the core somehow. I can't see any other possibility
"If correct, it would be a significant alteration from our current thoughts," says Rhodri Davies of Imperial College London. Most geologists who believe that mantle plumes exist think that pulsing can be explained by processes in the mantle alone, such as magma build-up in regions of different viscosity. "A new way of thinking would be needed," agrees Mjelde. However, several geologists contacted by New Scientist said they could not explain how the enormous pulses of heat required could be generated in the core.
There could be other explanations for the synchronicity. More detailed measurements may reveal the timings of the two plumes' pulses are close but not synchronous. Furthermore, Mike Coffin of the National Oceanography Centre in Southampton, UK, points out that the mantle is not homogeneous, so plumes leaving the core at the same time might not reach the crust at the same time.
"I am sceptical that they are co-pulsing from the evidence presented," says Huw Davies of Cardiff University, UK. Still, the idea is "potentially very exciting", he adds.
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