Skip to content
Catholic Online Logo

By Catholic Online (NEWS CONSORTIUM)

9/6/2013 (11 months ago)

Catholic Online (www.catholic.org)

Tamu Massif only 25 percent smaller than Olympus Mons on Mars

Researchers say that the world's largest volcano lurks beneath the Pacific Ocean. Called the Tamu Massif, the new discovery dwarfs Hawaii's Mauna Loa, the previous record holder. Tamu Massif is only 25 percent smaller than Olympus Mons on Mars, the biggest volcano in Earth's solar system.

With its new status as a single volcano, Tamu Massif could help constrain models of how oceanic plateaus form.

With its new status as a single volcano, Tamu Massif could help constrain models of how oceanic plateaus form.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

9/6/2013 (11 months ago)

Published in Green

Keywords: Tamu Massif, volacano, Mars, Pacific Ocean


LOS ANGELES, CA (Catholic Online) - "We think this is a class of volcano that hasn't been recognized before," William Sager, lead study author and a geologist at the University of Houston says. "The slopes are very shallow. If you were standing on this thing, you would have a difficult time telling which way was downhill."

Tamu is 400 miles wide but only about 2.5 miles tall, erupting for a few million years during the early Cretaceous period, about 144 million years ago. It has since been extinct.

Tamu Massif seems to have a central cone that spewed lava down its broad, gentle slopes. Seismic surveys and lava samples collected over several years of surveys by research ships suggest this. Seismic waves show lava flows dipping away from the summit of the volcano. There appears to be a series of calderas at the summit, similar in shape to the elongated and merged craters atop Mauna Loa, Sager says.

Geologists previously thought Tamu Massif was simply part of an oceanic plateau called Shatsky Rise in the northwest Pacific Ocean. These plateaus are massive piles of lava whose origins are still a matter of active scientific debate.

Some researchers think plumes of magma from deep in the mantle punch through the crust, flooding the surface with lava. Others plateaus suggest pre-existing weaknesses in the crust, such as tectonic-plate boundaries, provide passageways for magma from the mantle, the layer beneath the crust.

With its new status as a single volcano, Tamu Massif could help constrain models of how oceanic plateaus form. "For anyone who wants to explain oceanic plateaus, we have new constraints," sager says. "They have to be able to explain this volcano forming in one spot and deliver this kind of magma supply in a short time."

Geochemist David Peate of the University of Iowa says he looks forward to new models explaining the pulses of magma that built Shatsky Rise. Tamu Massif is the biggest and oldest volcano, and the cones grow smaller and younger to the northeast of Tamu. Sager and his colleagues suggest that pulses of magma created the volcanic trail.

"It seems that in many oceanic plateaus the melting is continuous, but here you have a big shield volcano," Peate, who was not involved in the study says. "Understanding the source of the volume of that magma, the rate of production of the magma and the time interval between those pulses will help give better constraints to feed into those models," he said.

Watch Catholic Online's most viral videos here!

---


Pope Francis: end world hunger through 'Prayer and Action'


© 2014 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for August 2014
Refugees:
That refugees, forced by violence to abandon their homes, may find a generous welcome and the protection of their rights.
Oceania: That Christians in Oceania may joyfully announce the faith to all the people of that region.



Comments


More Green

You'll never believe what these scientists found in space! Watch

Image of An artists rendering of the 300 light year long gas bubble that encloses our solar system.

By Catholic Online (NEWS CONSORTIUM)

A study published last month appears to suggest that our entire solar system is enclosed within a giant gas bubble. LOS ANGELES, CA (Catholic Online) - The entire bubble is about 300 light years long (roughly 1,764,000,000,000,000 miles) and its walls are made of gas ... continue reading


UNITED NATIONS: Global warming could be irreversible Watch

Image of Ocean acidification, which comes from the added carbon absorbed by oceans, will also harm marine life, the report says.

By Catholic Online (NEWS CONSORTIUM)

International experts say that for most intents and purposes, it's too late - global warming is real and could very well be irreversible. A draft of a new international science report released by the United Nations outlines the options that mankind has left. ... continue reading


Satellite confirms fears, ice sheets are melting fast Watch

Image of An artist's impression of Cryosat 2. The ESA mission has confirmed that massive ice sheets are melting fast.

By Marshall Connolly, Catholic Online (NEWS CONSORTIUM)

The European environmental satellite Cryosat 2, has independently confirmed what scientists have been saying for some time - the ice sheets in Antarctica and Greenland are melting. The blame for this melting is laid squarely on global warming and correlates with global ... continue reading


Safe, sane ways to get rid of pests - without poison Watch

Image of First off, the adage of

By Catholic Online (NEWS CONSORTIUM)

Those who keep pets face a special challenge: with pet food being readily available at all times, many homes with pets sometimes attracts mice and rats as well. These unwanted "pets," or more correctly pests, are usually done away with poisons - that frequently ... continue reading


NEANDERTHALS LIVED WITH MODERN MAN: Researchers say there is new evidence they interbred Watch

Image of It was a given scientific belief that Neanderthals were inferior in intelligence to modern humans, which led to their demise. New evidence has proven that they cooperated with each other, took care of the sick and elderly, carried out elaborate burial rituals and used symbolic language and art to express ideas.

By Catholic Online (NEWS CONSORTIUM)

It was previously believed that Neanderthals vanished instantaneously and didn't interact what would later become known as Modern Man. However, new evidence shows the wider population overlapped with present-day humans across Europe for up to 5,400 years before ... continue reading


ICE CAPS MELTING: Antarctica, Greenland losing ice mass rapidly Watch

Image of This data was the first to use information from the European Space Agency's CryoSat platform. The satellite was launched in 2010 with a sophisticated radar instrument specifically designed to measure the shape of the polar ice sheets.

By Catholic Online (NEWS CONSORTIUM)

At times, it appears that the entire world will be submerged underwater in the space of a few years. Greenland is losing about 375 cubic kilometers of ice annually. Coupled with the discharges coming from Antarctica, Earth's two big ice sheets are now dumping ... continue reading


DISCOVERY SUGGESTS LIFE ON OTHER PLANETS: Ecosystems found in Arctic lakes surprises researchers Watch

Image of It came as a most welcome surprise, as scientists were not on a life-hunting expeditions. The indirect sampling process later raised questions about those results.

By Catholic Online (NEWS CONSORTIUM)

The Arctic regions of our Earth, where there is very little marine or animal life seem at first incapable of sustaining organisms. However - recent discoveries at both Lake Vostok and Lake Whillans have uncovered healthy ecosystems of microbial life. According ... continue reading


Glacial retreat may halt Chinese dam projects Watch

Image of Tibetan glaciers supply hundreds of millions of people with water, and feed into rivers that run through China, India and much of Southeast Asia.

By Catholic Online (NEWS CONSORTIUM)

The Tibetan plateau has become warmer over the past 50 years than at any stage in the last millennia, a Chinese newspaper reported. LOS ANGELES, CA (Catholic Online) - This report, published by the Chinese Academy of Sciences' Institute of Tibetan Plateau Research, ... continue reading


Humans are doing WHAT? Watch

Image of A glacier in the Alps, one of the largest in the world.

By Catholic Online (NEWS CONSORTIUM)

A new study released on August 14 reports that man-made greenhouse gas emissions are the dominant cause of glacial melting in the Alps and Andes mountains. LOS ANGELES, CA (Catholic Online) - The study, published in the journal Science, reveals that human emissions ... continue reading


NEW SPECIES: 'Graveyard' reveals 47 skeletons of new species of pterosaur Watch

Image of What separates the latest find from others of their species is that the pterosaur Caiuajara dobruskii had a large bony crest on the top of its head that changed from being small when it was young, to large and steep in adults.

By Catholic Online (NEWS CONSORTIUM)

A colony of previously unknown flying reptiles that lived around a desert lake in Brazil around 100 million years ago have been uncovered by scientists. The fossilized remains of at least 47 pterosaurs with wingspans ranging from two to eight feet, were ... continue reading


All Green News

Newsletters

Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Daily Readings

Reading 1, First Corinthians 2:1-5
1 Now when I came to you, brothers, I did not come ... Read More

Psalm, Psalms 119:97, 98, 99, 100, 101, 102
97 How I love your Law! I ponder it all day ... Read More

Gospel, Luke 4:16-30
16 He came to Nazara, where he had been brought up, ... Read More

Saint of the Day

Saint of the Day for September 1st, 2014 Image

St. Giles, Abbot
September 1: St. Giles, Abbot (Patron of Physically Disabled) Feast day - ... Read More

Inform, Inspire & Ignite Logo

Find Catholic Online on Facebook and get updates right in your live feed.

Become a fan of Catholic Online on Facebook


Follow Catholic Online on Twitter and get News and Product updates.

Follow us on Twitter