zzdedu
Home
/
Educational Science
/
Planet Earth
/
Geology
Mount Merapi Mudflows Chase Indonesian Villagers Away
Nov 30, 2010
Mount Merapi Mudflows Chase Indonesian Villagers Away
Just because a volcano has stopped erupting doesn't mean it isn't still dangerous. Roughly 341 people have died since Mount Merapi began erupting in central Indonesia on Oct. 26. As of Dec. 3, Indonesia had downgraded the alert level for the volcano, the BBC reports (other Indonesian volcanoes are still...
Fake Landslides May Help Understand Natural Ones
Nov 30, 2010
Fake Landslides May Help Understand Natural Ones
Using artificial landslides created in a giant outdoor laboratory, scientists have uncovered key details on how these disasters happen — research that could help them improve forecasts of landslides' size and impact. Many landslides are triggered when intense rainfall or snowmelt loosens steep, debris-laden slopes. As the torrentssurge downward, they...
Nevado Coropuna: Tallest Mountain in Peru
Oct 31, 2010
Nevado Coropuna: Tallest Mountain in Peru
The tallest volcanic peak in Peru is aptly named Nevado (the Spanish word for snowy) Coropuna (the Quechua term for roughly shrine on the plateau), as the volcano is tipped with ice deposits and has long been considered a sacred mountain by locals. Nevado Coropuna is not a typical stratovolcano....
Child of Krakatau Is Still Smoking
Oct 31, 2010
Child of Krakatau Is Still Smoking
Throughout the summer and fall of this year, the volcano Anak Krakatau has erupted hundreds of times a day. But by Nov. 17, when NASA's Earth Observing-1 satellite took this image, activity at the volcano had started to slow at the remnant of one of the most powerful volcanic eruptions...
Expedition to the Fossilized Ancestor of the Great Barrier Reef
Aug 31, 2010
Expedition to the Fossilized Ancestor of the Great Barrier Reef
Shipiodpmaya (Image credit: ECORD/IODP.)It looks like smooth sailing for the Greatship Maya, a research vessel that headed to the waters off the edge of the Great Barrier Reef earlier this year. The large tower in the middle of the ship is the mighty drill the researchers used to retrieve ancient,...
Yellowstone Detectives Find Underground Column of Molten Rock
Aug 31, 2010
Yellowstone Detectives Find Underground Column of Molten Rock
A plume of molten rock rising from deep beneath Yellowstone National Park is probably what is fueling the region's volcanic activity, as well as tectonic plate oddities across the Pacific Northwest, new research suggests. Building on a growing body of evidence, Mathias Obrebski of the University of California, Berkeley, and...
Secret to Continents' Survival May Be Dry Rocks
Aug 31, 2010
Secret to Continents' Survival May Be Dry Rocks
The key to enduring billions of years of hellish punishment from the crushing, searing conditions found miles underground, if you're a rock, is to get drained of any water that might weaken you, scientists now suggest. The new finding would help explain how the continents keep from being swallowed back...
Earth's Core Covered By Liquid Rock, Experiment Suggests
Aug 31, 2010
Earth's Core Covered By Liquid Rock, Experiment Suggests
Oceans of magma may exist deep in the planet's interior, near where the Earth's mantle and core meet, researchers say. Such magma oceans could be relics from the earliest days of the planet, when it might have been almost completely molten. To reach their findings, scientists re-created the kind of...
Computers Take a Closer Look Inside the Earth
Jul 31, 2010
Computers Take a Closer Look Inside the Earth
More detailed pictures of the processes that continuously reshape theEarth from the inside out are being generated by new, more sophisticated computer models, yielding new insights into the hidden world beneath our feet. The added resolution that these models provide — down to a single kilometer from a minimum of...
Trekking the Coastal Mountains of Colombia
Jul 31, 2010
Trekking the Coastal Mountains of Colombia
Sierra Nevada de Santa Marta (Image credit: Jesse Lewis)The Sierra Nevada de Santa Marta is the tallest mountain range in Colombia. Isolated from the long chain of the Andes running south like a great snake along South America, the Sierra Nevada de Santa Marta pokes its head up like an...
How does a compass work?
Jun 30, 2010
How does a compass work?
If you're lost in the woods, your best chance of finding your way might be a tiny magnet. A magnet is what makes a compass point north — the small magnetic pin in a compass is suspended so that it can spin freely inside its casing and respond to our...
How Hot Is Lava?
May 31, 2010
How Hot Is Lava?
Ice melts at 32 degrees Fahrenheit. Chocolate melts at 90 F. But rock? Now we're talking a lot more heat. Lava, the melted rock that shoots out of volcanoes, can flow at temperatures of thousands of degrees Fahrenheit. Lava that's on the cooler side comes out of volcanoes at only...
Depth of Himalayan Mountain Roots Revealed
May 31, 2010
Depth of Himalayan Mountain Roots Revealed
An epic collision between two ancient continents pushed the Himalayas up fom the Earth's surface. That much is known, but a new study reveals how deep the unseen wreckage penetrated underground. Sprawling sections of the Earth's crust — the rocky plates floating on the scorching, molten rock inside the Earth,...
This Is Not Mars
May 31, 2010
This Is Not Mars
This barren, reddish terrain may look like it belongs on Earth's neighbor, but it's no Martian landscape -- it's actually a unique geological feature in Australia. Located in the Northern Territory of Australia, Uluru-Kata Tjuta National Park hosts some of the world's most spectacular examples of inselbergs, or isolated mountains....
Canyons Form Quickly, Recent Gusher Suggests
May 31, 2010
Canyons Form Quickly, Recent Gusher Suggests
Some of the most spectacular canyons on Earth and Mars were probably formed in the geologic blink of an eye, suggests a new study that found clues to their formation deep in the heart of Texas. Lake Canyon Gorge, a 23-feet- (7-meter-) deep canyon in Comal County, Texas, was carved...
1 2 3 4 5 6 7
Copyright 2023-2024 - www.zzdedu.com All Rights Reserved