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Does a Planet Need Life to Create Continents?

Does a Planet Need Life to Create Continents? | Geology | Scoop.it
Astrobiology Magazine
Does a Planet Need Life to Create Continents?
Astrobiology Magazine
The investigators focused on biological weathering, by which life breaks down rock.
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Geology
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Swedish Bronze Age axes made with copper from Cyprus

Swedish Bronze Age axes made with copper from Cyprus | Geology | Scoop.it
Ancient bronze tools unearthed in Sweden were made using copper from the Mediterranean, showing there was trade between the two cultures, archeologists have found.
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New Pavlof Volcano rumblings could be prelude to eruption

New Pavlof Volcano rumblings could be prelude to eruption | Geology | Scoop.it
An increase in seismic activity at Pavlof Volcano, which erupted spectacularly in March, has prompted Alaska Volcano Observatory staff to step up monitoring of the Alaska Peninsula volcano.
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Rare Faint-Blue Galaxy Yields Clues to the Big Bang

Rare Faint-Blue Galaxy Yields Clues to the Big Bang | Geology | Scoop.it
"Finding the most metal-poor galaxy ever is exciting since it could help contribute to a quantitative test of the Big Bang," said John J. Salzer at Indiana University. "There are relatively few ways to explore conditions at the birth of...
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New Zealand warns hikers away from Lord of the Rings volcano... AKA Mordor

New Zealand warns hikers away from Lord of the Rings volcano... AKA Mordor | Geology | Scoop.it
Geologists say Mount Ruapehu – backdrop for Mordor – is showing signs of increased volcanic activity
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Shooting stars show Earth had oxygen eons before we thought

Shooting stars show Earth had oxygen eons before we thought | Geology | Scoop.it
Tiny meteorites discovered in Australia show that Earth's air had some oxygen in it at a time when no one thought it did – 2.7 billion years ago
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Nigeria oil output hits 22-year low on renewed unrest

Nigeria oil output hits 22-year low on renewed unrest | Geology | Scoop.it
Nigeria’s oil output has slumped to a 22-year low, figures showed on Tuesday, because of pipeline sabotage and increasing unrest that has seen major companies evacuate staff.
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One Year After the M7.8 Nepal Earthquake | USGS.gov

One Year After the M7.8 Nepal Earthquake | USGS.gov | Geology | Scoop.it
On April 25, 2015 at 11:56 local time, part of the tectonic boundary between India and the rest of Eurasia began to slip, sending powerful earthquake waves to Nepal’s capital city of Kathmandu just 50 miles away. While this earthquake spread damage throughout the region beyond Nepal, it did not destroy the capital. USGS scientists were surprised at how well the city and the surrounding valley fared -- in contrast to the devastation in rural areas -- and are looking for lessons that could help reduce future earthquake losses in Nepal and elsewhere.
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Computer Simulation: How An 8.0 Earthquake Would Rock Los Angeles

Computer Simulation: How An 8.0 Earthquake Would Rock Los Angeles | Geology | Scoop.it

Earlier this week, an expert from the Southern California Earthquake Center spoke at a conference in Long Beach and called the southern San Andreas fault "locked, loaded and ready to go" for a major 'quake. He said that people should be preparing for something around a magnitude 8.0—that's larger than the devastating San Francisco earthquake back in 1906, the LA Times notes, and that one caused about 3,000 deaths from both the shaking and the fires that followed (which LA's former earthquake czar Lucy Jones has said we should be worried about).

 

What would an earthquake that big even look like? How would it move and where could we expect the shaking to be felt? For that, there's a video from the SCEC that shows where the movement would occur and how far away it could be felt in the event of a 'quake that starts near San Luis Obispo and moves south along the fault.


Via YEC Geo, Dr. Stefan Gruenwald
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Fossil Raindrops Show Half the Pressure of Today's Atmosphere

Fossil Raindrops Show Half the Pressure of Today's Atmosphere | Geology | Scoop.it
The idea that the young Earth had a thicker atmosphere turns out to be wrong. New research from the University of Washington uses bubbles trapped in 2.7 billion-year-old rocks to show that air at that time exerted at mos
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Rocks and views of Fairmont Ridge

Rocks and views of Fairmont Ridge | Geology | Scoop.it
Fairmont Ridge is the grassy upland that forms the backdrop to San Leandro. As it happens, East Bay Regional Park District owns much of it as part of Lake Chabot Regional Park. It has some rocks, which I’ll show first, and also some fine views.
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Volcanic Explosivity Index: Measuring the size of an eruption

Volcanic Explosivity Index: Measuring the size of an eruption | Geology | Scoop.it
The volcanic explosivity index uses the amount of pyroclastic material ejected as a measure of explosivity. Some eruptions are millions of times more explosive than others.
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U.S. oil industry bankruptcy wave nears size of telecom bust

U.S. oil industry bankruptcy wave nears size of telecom bust | Geology | Scoop.it
The rout in crude prices is snowballing into one of the biggest avalanches in the history of corporate America, with 59 oil and gas companies now bankrupt after this week's filings for creditor protection by Midstates Petroleum and Ultra Petroleum.
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Mastodon Bones with stone tools? New research puts Humans in Florida 14,550 Years Ago!

Mastodon Bones with stone tools? New research puts Humans in Florida 14,550 Years Ago! | Geology | Scoop.it
Content Management System
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Musselman Arch, Canyonlands National Park and the Arching Milky Way

Musselman Arch, Canyonlands National Park and the Arching Milky Way | Geology | Scoop.it
Photographer: David Lane Summary Author: David Lane Shown above is Musselman Arch (at center) in Canyonlands National Park, Utah, with the Milky Way arching overhead. It's a jarring 5 mi (8 km) drive on White Rim Road to the Arch...
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Chrysoberyl from the New England Placer Deposits

Chrysoberyl from the New England Placer Deposits | Geology | Scoop.it
Examines a collection of chrysoberyl samples from these sapphire placer deposits to determine their distinct mineralogical and chemical properties.
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Huge sinkhole rips through residential street in London

Huge sinkhole rips through residential street in London | Geology | Scoop.it

A massive sinkhole has burst open on a residential street in London - swallowing up a parked family car. Woodland Terrace in Charlton in the south east of the city has been closed after the road's surface gave way overnight following 24 hours of heavy rainfall.


Via NERC Press Office
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NERC Press Office's curator insight, May 12, 9:36 AM
Peter Hobbs, from the British Geological Survey (BGS), is quoted in this story. BGS is one of six NERC-supported centres.
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France eyes ban on U.S. shale gas

France eyes ban on U.S. shale gas | Geology | Scoop.it

The French government is looking to ban imports of shale gas from the United States to back a nationwide prohibition on fracking."

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Super-salty Turkish lakes may hold key to spotting life on Mars

Super-salty Turkish lakes may hold key to spotting life on Mars | Geology | Scoop.it
A new survey of extreme microbes living in salty and alkaline lakes could yield "fingerprints" that help detect the biological origin of rocks on Mars
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Climate Change for the Impatient: A Nuclear Mini Ice Age

Climate Change for the Impatient: A Nuclear Mini Ice Age | Geology | Scoop.it
Everyone has heard about climate change caused by fossil fuels, which threatens to raise Earth's average surface temperature by about 3-5°C by the yea
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Arctic Ocean Seafloor Map: Depth, Shelves, Basins, Ridges

Arctic Ocean Seafloor Map: Depth, Shelves, Basins, Ridges | Geology | Scoop.it
Bathymetic map of the Arctic Ocean showing major shelves, basins, ridges and other features.
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Aerial Photos of Iceland Volcanic Rivers

Aerial Photos of Iceland Volcanic Rivers | Geology | Scoop.it

On occasion, we are reminded of how utterly captivating and gorgeous nature is, its visual poetry surrounds us. It just takes a step back, a shift in perspective, to realize how amazing the constructs of this planet are; it’s a beautiful constant balance between order and entropy. Case in point, what appears to be well-crafted, intricate abstract paintings, or works of art, are in reality, mindblowing aerial images of Iceland."


Via Seth Dixon
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Seth Dixon's curator insight, April 25, 1:32 PM

Andre Ermolaev, through his photography has captured the beauty of Iceland's geomorphology.  Being on the Mid-Atlantic Ridge, Iceland has abundant volcanic ash which adds rich color to the fluvial systems.  

 

Tags: geomorphology, physical, Europe, fluvial, water, landforms, images.

The Science & Education team's curator insight, May 11, 6:15 PM
Having lots of volcanoes, ash, lava, snow, rain and hills gives great potential for dramatic geography for Iceland
Joaquín del Val's curator insight, May 27, 1:20 PM
Espectaculares imágenes de canales fluviales en Islandia
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Rwanda: Landslides caused by heavy rains kill dozens

Rwanda: Landslides caused by heavy rains kill dozens | Geology | Scoop.it
At least 53 people have been killed by landslides caused by heavy rains over the weekend in Rwanda, officials say.
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Is Fracking For Gas As Dirty As Coal?

Is Fracking For Gas As Dirty As Coal? | Geology | Scoop.it
Tougher environmental regulations, a flood of cheap natural gas from fracking, and a sudden decrease in demand from China, has pushed natural gas even further in replacing coal in generating electricity. But fears about fracking’s effects on the environment has spawned bans on fracking in some states. A new study by the University of Texas at Arlington demonstrates that groundwater quality changes alongside the expansion of horizontal drilling and hydraulic fracturing but also suggests that some potentially hazardous effects may dissipate over time.
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Becoming Habitable in the Habitable Zone

Becoming Habitable in the Habitable Zone | Geology | Scoop.it
Scientists explore how interactions between a rocky planet's climate, mantle, and core can affect its evolution and determine whether it could sustain life.
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