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New evidence for ancient ocean on Mars

New evidence for ancient ocean on Mars | Geology | Scoop.it
Did a vast ocean once cover Mars' northern plains? The idea has been hotly debated among scientists for the past 20 years, ever since Viking Orbiter images revealed possible ancient shorelines near the pole. Later findings even suggested that the primordial ocean—dubbed Oceanus Borealis—could have ...
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Mystery of Mars 'doughnut rock' solved

Mystery of Mars 'doughnut rock' solved | Geology | Scoop.it
CNN Mystery of Mars 'doughnut rock' solved CNN The car-sized Curiosity rover, representing a $2.5 billion mission, is now on its way to Mount Sharp, a sedimentary formation that will allow the rover to explore Mars' history by driving up the peak's...
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Jupiter's moon Ganymede mapped. Here it is:

Jupiter's moon Ganymede mapped. Here it is: | Geology | Scoop.it
The first global geologic map of Jupiter's moon Ganymede, the
largest moon in the Solar System, has been released. The project
was led by Geoffrey Collins of Wheaton College, and the map is
published on the United States Geological Survey website.
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Mass evacuation in Indonesia as Java volcano erupts

Mass evacuation in Indonesia as Java volcano erupts | Geology | Scoop.it
BBC News
Mass evacuation in Indonesia as Java volcano erupts
BBC News
Thousands of people are evacuating their homes in Indonesia after a volcano erupted in east Java.
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Live Birth Reptile Fossil Pre-Dates Current Record By 10 Million years

Live Birth Reptile Fossil Pre-Dates Current Record By 10 Million years | Geology | Scoop.it
A live birth reptile fossil found recently has scientists dumbfounded, pre-dating the current record by millions of years. It was previously believed that reptiles bore young tail-first, and mammals gave birth to their young ...
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End-Permian extinction happened in 60000 years—much faster than earlier estimates

End-Permian extinction happened in 60000 years—much faster than earlier estimates | Geology | Scoop.it
End-Permian extinction happened in 60000 years—much faster than earlier ...
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YEC Geo's curator insight, February 12, 2014 9:56 AM

The problem here is that the scientists are tied in to the uniformitarian stratigraphic techniques of 19th century geology.  Their dating scheme is based upon precision U-Pb dates from five volcanic ash layers in Meishan, China.  They estimated the difference between the upper and lower layers to be more or less 60,000 years.

Question:  where is all the ash from Mt. St. Helens that was deposited over the Pacific Northwest?

 

Answer:  most of it has eroded away. 


Yet the individual volcanic ash beds in Meishan were supposedly preserved over tens of thousands of years, enough so that a stack of ash beds formed?

 

Scientists need to account for erosion when calculating the longevity of datable sedimentary layers, especially volcanic ash.  Erosion happens.  And maybe the explanation for the preservation of the ash layers is that they were laid down within a much shorter time period than even 60,000 years.

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How did early Earth protect itself against the cold?

How did early Earth protect itself against the cold? | Geology | Scoop.it
Air bubbles formed inside of the ancient quartz while the silica rock was being heated in the Earth's crust. By analysing the air inside of these rocks, it's possible to learn things such as what isotopes or types of nitrogen were ...
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Two Fossil Species of Sucker-Footed Bats Discovered in Sahara

Two Fossil Species of Sucker-Footed Bats Discovered in Sahara | Geology | Scoop.it
Sci-News.com Two Fossil Species of Sucker-Footed Bats Discovered in Sahara Sci-News.com Paleontologists have described a new extinct genus and two fossil species of the bat family Myzopodidae from several fossilized jawbones and teeth discovered in...
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The First Evidence that Asteroids Can Have a Highly Varied Internal Structure

The First Evidence that Asteroids Can Have a Highly Varied Internal Structure | Geology | Scoop.it
By using precise measurements of the asteroid Itokawa, astronomers have discovered the first evidence that asteroids can have a highly varied internal structure.
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Garnet research breaks ground

Garnet research breaks ground
Western Front
Hirsch and his team are the first in the geology world to compile real data relating to age-dating and growing rates of garnets in metamorphic rocks, he said.
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Research finds fundamental marine ecosystem change during rapid climate change

Research finds fundamental marine ecosystem change during rapid climate change | Geology | Scoop.it
Research finds fundamental marine ecosystem change during rapid climate ...
University of Bristol
The expansion of large diatoms allowed more carbon to sink into the abyss and become locked into the sedimentary record.
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Ecuador's Tungurahua volcano spews ash into the air

Ecuador's Tungurahua volcano spews ash into the air | Geology | Scoop.it
Ecuador's Tungurahua volcano spews ash into the air as it comes rumbling to life. By Agence France-Presse Monday, February 3, 2014 13:41 EST. Lava spewed by the Tungurahua volcano can be seen from the city of Pelileo (AFP.
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Explosive volcanoes light up Mercury's deep past

Explosive volcanoes light up Mercury's deep past | Geology | Scoop.it
Explosive volcanoes light up Mercury's deep past
Phys.Org
The crushing atmospheric pressure on Venus means that volatiles cannot easily escape from emerging magma, so exploding volcanoes can't exist.
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Julieta Isoler's comment, February 4, 2014 7:34 PM
This article changes all kinds of knowledge of Mercury's nature. No one knew it has magma under the surface. All along one thought that the craters were caused by crazy meteors crashing into it, but now that they see it has red on the side of the crater they know. It's really amusing how we yet find things out about our solar system.
Trint Marlow's curator insight, February 11, 2014 12:27 PM

Title: Explosive volcanoes light up Mercury's deep past

Main Idea: Volcanic activity on Mercury

Summary: How the volcanic activity has changed the planets formation.

 Questions/suggestions: How did they know it was volcanic and not meteors.

I think it is important to science because it has completely changed mercury's surface

Sources: phys.org

mitalia montes's curator insight, February 11, 2014 12:40 PM

Title: Explosive volcanoes light up mercury's deep past

Author: Robin Wylie

Date: January 31-2014

Main Idea: volcanic activity on Mercury

Summary: Volcanoes cover the planet Mercury's surface.

There is no opinion

My question is how and why does this all happen.

I think that this article is important to science because we might need Mercury in the future for whatever it is! But this is important.

 

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Volcanoes can go from dormant to active quickly

Volcanoes can go from dormant to active quickly | Geology | Scoop.it
Science Codex
Volcanoes, including Mt. Hood, can go from dormant to active quickly Phys.Org The key, scientists say, is to elevate the temperature of the rock to more than 750 degrees Celsius, which can happen when hot magma from deep within the...
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Java volcano: Reactions from Kediri to Bandung

Java volcano: Reactions from Kediri to Bandung | Geology | Scoop.it
BBC News
Java volcano: Reactions from Kediri to Bandung
BBC News
The Indonesian island of Java has been showered with ash and detritus from an eruption of the Mount Kelud volcano, toward the east of Java, last night.
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What ecosystem greeted the first human settlers in the northern Caribbean?

What ecosystem greeted the first human settlers in the northern Caribbean? | Geology | Scoop.it
What ecosystem greeted the first human settlers in the northern Caribbean?
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Strong earthquake not to hit Baku

Strong earthquake not to hit Baku | Geology | Scoop.it
Strong earthquake not to hit Baku: Seismology center
AzerNews
The Republican Center of Seismic Service of Azerbaijan National Academy of Sciences (ANAS) has rejected reports that a strong earthquake will hit Azerbaijan's capital city of Baku.
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New study of fossil teeth shows that environment, as well as diet

New study of fossil teeth shows that environment, as well as diet | Geology | Scoop.it
(Phys.org) —Researchers at the University of Arkansas have established that pits and scratches on the teeth of mammal fossils give important clues to the diet of creatures that lived millions of years ago.
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NASA is now accepting applications from companies that want to mine the moon

NASA is now accepting applications from companies that want to mine the moon | Geology | Scoop.it
NASA is now working with private companies to take the first steps in exploring the moon for valuable resources like helium 3 and rare earth metals.
Initial proposals are due tomorrow for the...
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800000-year-old footprints found in England -- then they washed away

800000-year-old footprints found in England -- then they washed away | Geology | Scoop.it
Telegraph.co.uk
800000-year-old footprints found in England -- then they washed away
Los Angeles Times
But the cliffs are eroding rapidly, and as they wash into the sea, they are uncovering earlier sediments at their base.
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Disappearance of wildflowers may have doomed Ice Age giants...

Disappearance of wildflowers may have doomed Ice Age giants... | Geology | Scoop.it
Disappearance of wildflowers may have doomed Ice Age giants WTAQ Scientists who studied DNA preserved in Arctic permafrost sediments and in the remains of such ancient animals have concluded that these Ice Age beasts relied heavily on the...
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Experts warn of potential tsunami risks for Ireland

Experts warn of potential tsunami risks for Ireland | Geology | Scoop.it
Experts warn of potential tsunami risks for Ireland
Irish Independent
“We're in Ireland; we're surrounded by the Atlantic; you have magnitude 6 earthquakes in the Caribbean, in the Azores and on the Mid-Atlantic bridge ”.
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Pompeii-like Eruption Fossilized Dinos in Death Poses

Pompeii-like Eruption Fossilized Dinos in Death Poses | Geology | Scoop.it
National Geographic Pompeii-like Eruption Fossilized Dinos in Death Poses LiveScience.com A mass grave in a Chinese lakebed contains the extremely well-preserved fossils of dinosaurs, mammals and early birds, but the cause of the animals' death has...
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At least 11 killed as Indonesia's Mount Sinabung volcano erupts - The Guardian

At least 11 killed as Indonesia's Mount Sinabung volcano erupts - The Guardian | Geology | Scoop.it
The Guardian At least 11 killed as Indonesia's Mount Sinabung volcano erupts The Guardian Indonesia's Mount Sinabung volcano erupted and killed at least 11 people on the western island of Sumatra on Saturday, the first time it is known to have...
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