Geology Times
Recent News |  Archives |  Tags |  About |  Newsletter |  Submit News |  Earthquakes |  Subscribe to GeologyTimes.com RSS Feed Subscribe


More Articles
Researchers open path to finding rare, polarized metalsResearchers open path to finding rare, polarized metals

Running geese give insight into low oxygen toleranceRunning geese give insight into low oxygen tolerance

Scientists in Singapore develop novel ultra-fast electrical circuits using light-generated tunnelingScientists in Singapore develop novel ultra-fast electrical circuits using light-generated tunneling

The motion of the medium matters for self-assembling particles, research showsThe motion of the medium matters for self-assembling particles, research shows

Researchers determine how mechanical forces affect T-cell recognition and signalingResearchers determine how mechanical forces affect T-cell recognition and signaling

La Brea Tar Pit fossil research shows climate change drove evolution of Ice Age predatorsLa Brea Tar Pit fossil research shows climate change drove evolution of Ice Age predators

The surprising consequences of banning chocolate milkThe surprising consequences of banning chocolate milk

Faithful allies since the CretaceousFaithful allies since the Cretaceous

Galactic serial killerGalactic serial killer

Positive, negative thinkers' brains revealedPositive, negative thinkers' brains revealed

Babies prefer fairness -- but only if it benefits them -- in choosing a playmateBabies prefer fairness -- but only if it benefits them -- in choosing a playmate

An ultrathin collagen matrix biomaterial tool for 3D microtissue engineeringAn ultrathin collagen matrix biomaterial tool for 3D microtissue engineering

Friedreich's ataxia -- an effective gene therapy in an animal modelFriedreich's ataxia -- an effective gene therapy in an animal model

A new twist makes for better steel, researchers findA new twist makes for better steel, researchers find

Renewable energy market share climbs despite 2013 dip in investmentsRenewable energy market share climbs despite 2013 dip in investments

Research suggests autumn is ending later in the northern hemisphereResearch suggests autumn is ending later in the northern hemisphere

'Unzipping' poplars' biofuel potential'Unzipping' poplars' biofuel potential

Study finds gaming augments players' social livesStudy finds gaming augments players' social lives

Sniff study suggests humans can distinguish more  than 1 trillion scentsSniff study suggests humans can distinguish more than 1 trillion scents

Off the shelf, on the skin: Stick-on electronic patches for health monitoringOff the shelf, on the skin: Stick-on electronic patches for health monitoring

A breakthrough in creating invisibility cloaks, stealth technologyA breakthrough in creating invisibility cloaks, stealth technology

Overcoming structural uncertainty in computer modelsOvercoming structural uncertainty in computer models

Monkey caloric restriction study shows big benefit; contradicts earlier studyMonkey caloric restriction study shows big benefit; contradicts earlier study

Researchers developed world's first fluorescent sensor to detect date rape drugResearchers developed world's first fluorescent sensor to detect date rape drug

Protein called YAP gives blood vessels strength, shapeProtein called YAP gives blood vessels strength, shape

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

Turning back the clock on aging muscles?Turning back the clock on aging muscles?

Gecko-inspired adhesion: Self-cleaning and reliableGecko-inspired adhesion: Self-cleaning and reliable

New study finds differences in concussion risk between football helmetsNew study finds differences in concussion risk between football helmets

Mud pots signal possible extension of San Andreas Fault (7/30/2008)

Tags:
volcanoes, faults, san andreas fault, mud pots

Most of the major mud pots in the Wister Unit are cicular, steep-sided holes, with varying amounts of bubbling water, spattering mud, and hissing gas.  Some are completely inactive.  Their activity and morphology varies seasonally with the amount of rain and the level of the water table.  It is likely that the surface structure of many pots has been influenced by the earthen rings constructed around them.  Unlike the hot steaming mud pots and mud volcanoes, a few kilometers south in the Salton Sea geothermal field, the temperature of wate and mud in the Wister mud pots is not noticeably elevated.
Most of the major mud pots in the Wister Unit are cicular, steep-sided holes, with varying amounts of bubbling water, spattering mud, and hissing gas. Some are completely inactive. Their activity and morphology varies seasonally with the amount of rain and the level of the water table. It is likely that the surface structure of many pots has been influenced by the earthen rings constructed around them. Unlike the hot steaming mud pots and mud volcanoes, a few kilometers south in the Salton Sea geothermal field, the temperature of wate and mud in the Wister mud pots is not noticeably elevated.
A linear string of mud pots and mud volcanoes suggest surface evidence for a southern extension of the San Andreas Fault that runs through the Salton Sea, according to a paper published in the August issue of the Bulletin of the Seismological Society of America (BSSA).

Researchers David K. Lynch and Kenneth W. Hudnut of USGS report the results of a comprehensive survey of mud pots in the area immediately east of the southeastern-most portion of the Salton Sea in Imperial County, Calif. Using satellite imagery, followed by a physical examination of the land, they identified a cluster of 33 mud pots, mud volcanoes and sink holes which, when plotted, form a clear linear pattern.

Mud pots and mud volcanoes are geothermal features produced when water or gas is forced upward through soil and sediments. Mud pots can assume a variety of forms, typically being depressions or enclosed basins containing gas seeps, bubbling water or viscous mud. Mud pots can also be water-laden and appear as bubbling muddy water. Mud volcanoes, on the other hand, are elevated conical structures composed of accumulations of viscous mud extruded from a central vent. They range from finger-sized to several kilometers across, though the largest in the Salton Sea area are about 2 meters high. Small mud volcanoes on land, ranging from one to 10 feet in height, are usually called mud cones or gryphons and are usually associated with volcanic and seismic activity.

"The presence of a linear field of geothermal features is evidence of a planar rift extending to considerable depth in the crust," Lynch and Hudnut write.

While geologists have suspected that the San Andreas Fault extended beyond its confirmed terminal point near Bombay Beach, erosion, seismic inactivity and agricultural reshaping of the land have erased any previously identifiable surface evidence to support the theory.

The San Andreas Fault is a plate boundary separating Pacific and North American plates. "This new evidence indicates that the region is more complicated than we previously thought," Lynch said. "The extension of the San Andreas does not appear to be active. It is probably a very old part of the fault, and helps to explain the larger, more complex transition area between the Imperial fault and San Andreas fault, called the Brawley Seismic Zone."

The southern portion of the San Andreas Fault is the focus of the Great Southern California ShakeOut, which will be an earthquake drill on 13 Nov. 2008 designed to help prepare local citizens for the next very large earthquake. The scenario will call for a quake with a magnitude of 7.8 that begins in the same area that is the subject of this paper.

Original Paper (PDF) 11 MB

Note: This story has been adapted from a news release issued by the Seismological Society of America

Comments:

1. RestfullyGiggling

7/30/2008 4:51:50 PM MST

uugh?!?

Most of the major mud pots in the Wister Unit are cicular, steep-sided holes, with varying amounts of bubbling water, spattering mud, and hissing gas. Some are completely inactive. Their activity and morphology varies seasonally with the amount of rain and the level of the water table. It is likely that the surface structure of many pots has been influenced by the earthen rings constructed around them. Unlike the hot steaming mud pots and mud volcanoes, a few kilometers south in the Salton Sea geothermal field, the temperature of wate and mud in the Wister mud pots is not noticeably elevated.


2. Rayndra

8/18/2008 10:04:16 AM MST

A Tool song comes to mind...


Leave a Reply:

Search

New Articles
Study provides crucial new information about how the ice ages came about

Earthquake simulation tops 1 quadrillion flopsEarthquake simulation tops 1 quadrillion flops

Geologists prove early Tibetan Plateau was larger than previously thoughtGeologists prove early Tibetan Plateau was larger than previously thought

Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blastScientists reconstruct ancient impact that dwarfs dinosaur-extinction blast

A satellite view of volcanoes finds the link between ground deformation and eruption

Hot mantle drives elevation, volcanism along mid-ocean ridgesHot mantle drives elevation, volcanism along mid-ocean ridges

Magnetic anomaly deep within Earth's crust reveals Africa in North America

The Atlantic Ocean dances with the sun and volcanoes

Great earthquakes, water under pressure, high risk

Ancient Indonesian climate shift linked to glacial cycle

Computer models solve geologic riddle millions of years in the making

The causes and consequences of global climate warming that took place 56 million years ago studiedThe causes and consequences of global climate warming that took place 56 million years ago studied

Off-rift volcanoes explained

Dust in the wind drove iron fertilization during ice ageDust in the wind drove iron fertilization during ice age

Ground-improvement methods might protect against earthquakes



Archives
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007


Science Friends
Agricultural Science
Astronomy News
Biology News
Biomimicry Science
Cognitive Research
Chemistry News
Tissue Engineering
Cancer Research
Cybernetics Research
Electonics Research
Forensics Report
Fossil News
Genetic Archaeology
Genetics News
Microbiology Research
Nanotech News
Parenting News
Physics News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.