Latest topics
» Graphic for June 18, 2019
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 9:36 pm by ReneGade

» Richard Dolen - The Leak: New Revelations
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 8:27 pm by PurpleSkyz

» NIBIRU News ~ *SPECIAL*TWO SUNS AND TWO SUNSETS* plus MORE
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 5:06 pm by PurpleSkyz

» UFO News ~ UFO Captured On Webcam Near Popocatépetl Volcano, Mexico plus MORE
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 2:29 pm by PurpleSkyz

» All Out Assault on Nature in New Zealand ~ 1080 Pellets Being Deployed by Helicopter
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 1:50 pm by Consciousness Of Economic

» Carrying Stones & Digging Holes Radio Show June 15, 2109 Valery Uvarov
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 1:49 pm by Consciousness Of Economic

» Shock Claim: Julian Assange in GITMO
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 1:27 pm by PurpleSkyz

» Total Solar Eclipse 2019 - The Moon is about to Block the Sun, Turning Day into Night
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 1:25 pm by PurpleSkyz

» Body Language: Trump On UFO’s
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 12:22 pm by PurpleSkyz

» Flypocalypse engulfs village in Russia
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 12:01 pm by PurpleSkyz

» "STRANGE SOUNDS" coming from Sky! - Unusual phenomena RETURNS!
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:57 am by PurpleSkyz

» Deutsche Bank FAILS Again! - Bank On Verge Of TOTAL COLLAPSE!
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:55 am by PurpleSkyz

» Julian Assange to be extradited to US sooner than you think
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:52 am by PurpleSkyz

» This Container Makes 2000 Liters Of Water A Day Out Of Air
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:50 am by PurpleSkyz

» Taking a look at Netflix PROGRAMMING
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:47 am by PurpleSkyz

» Linda Moulton Howe Are These Important Messages For Earth, Sent By An ET Civilisation?
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:44 am by PurpleSkyz

» Largest Pyramid On Earth Found Hidden In Peru?
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 11:42 am by PurpleSkyz

» Popocatepetl eruption June 17, 2019
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 10:40 am by PurpleSkyz

» Hunt for cause of massive South America power outage begins
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 10:35 am by PurpleSkyz

» Japan issues tsunami warning after 6.5-magnitude earthquake off north-east coast
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 10:33 am by PurpleSkyz

» This happened on our Earth !! p / 3 last events from all over the world
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyYesterday at 10:25 am by PurpleSkyz

» Graphic for June 17, 2019
Lava formations in western US linked to rip in giant slab of Earth  Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region EmptyMon Jun 17, 2019 9:05 pm by ReneGade


PLEASE VISIT
CannaBananaDaze
www.cannabananadaze.com


CBD/THC OIL INFO
GROWING TIPS & MORE


ONLY NATURES MAGIC

ONLY NATURES MAGIC
Featuring Homemade Herbal Salves Made in the Ozarks
https://onlynaturesmagic.com


Holistic Alternative
Health Care
by Bridgette Lyn Dolgoff


Health (Mental, Emotional, Physical & Spiritual), Nutrition (Nutrient, Diets, Illness, Pain), Energy Medicine (Energy Fields, Body, Spirit), Structural Medicine (Bones, Tissues, Patterns, Memory) and more For People, Animals, Communities, Environments, Personal and Business
www.https://coe-llc.com




You are not connected. Please login or register

OUT OF MIND » SOLAR & PLANETARY ALERTS & INFO » SPACE & ATMOSPHERIC CHANGES » Lava formations in western US linked to rip in giant slab of Earth Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region

Lava formations in western US linked to rip in giant slab of Earth Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region

Go down  Message [Page 1 of 1]

godsfool713

godsfool713
http://www.eurekalert.org/pub_releases/2012-02/uoc--lfi021412.php


Lava formations in western US linked to rip in giant slab of Earth

Scripps scientists propose mass melting as new force behind volcanic activity in Columbia River region

Like a stream of air shooting out of an airplane's broken window to relieve cabin pressure, scientists at Scripps Institution of Oceanography at UC San Diego say lava formations in eastern Oregon are the result of an outpouring of magma forced out of a breach in a massive slab of Earth. Their new mechanism explaining how such a large volume of magma was generated is published in the Feb. 16 issue of the journal Nature.

For years scientists who study the processes underlying the planet's shifting tectonic plates and how they shape the planet have debated the origins of sudden, massive eruptions of lava at the planet's surface. In several locations around the world, such "flood basalts" are marked by immense formations of volcanic rock. A famous example is India's Deccan flood basalt, a formation widely viewed as related to the demise of the dinosaurs 65 million years ago.

Such eruptions are thought to typically occur when the head of a mantle plume, a mushroom-shaped upwelling of hot rock rising from deep within the earth's interior, reaches the surface. Now Scripps postdoctoral researcher Lijun Liu and geophysics professor Dave Stegman have proposed an alternative origin for the volcanic activity of Oregon's Columbia River flood basalt.

Liu and Stegman argue that around 17 million years ago the tectonic plate that was subducting underneath the western United States began ripping apart, leading to massive outpourings of magma. Their proposed model describes a dynamic rupture lasting two million years—a quick eruption in geological terms— across the so-called Farallon slab, where the rupture spread across 900 kilometers (559 miles) along eastern Oregon and northern Nevada.

"Only with a break of this scale inside the down-going slab can we reach the present day geometry of mantle we see in the area," said Liu, "and geochemical evidence from the Columbia River lavas can also be explained by our model."

"When the slab is first opened there's a little tear, but because of the high pressure underneath, the material is able to force its way through the hole. It's like in the movies when a window breaks in an airplane that is at high altitude—since the cabin is at higher pressure, everything gets sucked out the window," said Stegman, an assistant professor with Scripps' Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics.

Liu and Stegman came upon their new mechanism by attempting to describe how the complicated structure of the earth's mantle under the western U.S. developed during the past 40 million years. The final state of their model's time-evolution matches the present day structure as imaged by the USArray, the National Science Foundation's transportable seismic network of 400 sensor stations leapfrogging across the United States.

"This paper highlights the importance of interdisciplinary efforts in Earth sciences," Liu added.

###
The John Miles Fellowship, the Cecil and Ida Green Foundation and the G. Unger Vetlesen Foundation funded the study.

Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum