Photos: Tucson Gem and Mineral Show
February 19, 2010 | Geology.com
Last week, we visited the 2010 Gem, Mineral, and Fossil Showcase in Tucson, AZ – and it was unbelievable! We took lots of pictures to share with you. Even if you weren’t able to attend, you can still check out some huge amethyst geodes, giant fossils, gem and mineral specimens, exhibits, art, and more.
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1960: Bathyscaphe Trieste Visits Challenger Deep
January 23, 2010 | Geology.com
January 23 marks the 50th anniversary of Don Walsh and Jacques Piccard’s historic dive inside the Bathyscaphe Trieste to the deepest part of the ocean. This record voyage in 1960 remains the only manned trip to the Challenger Deep in the Mariana Trench.
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Measuring Earth’s Magnetic Field
December 23, 2009 | NASA / JPL
An article that explores what NASA scientists are learning about Earth’s core and magnetic field using indirect measurements taken on land, on the oceans and from space.
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Guide to Rock Tumbling
December 3, 2009 | Geology.com
Rock tumblers are a popular Christmas gift and have inspired may people to learn more about rocks. Here is a guide to rock tumbling machines, abrasives, rough and procedures.
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Close Call With An Undiscovered Asteroid
November 13, 2009 | NASA / JPL
On November 6, 2009 an asteroid about 20 feet across streaked between Earth and the Moon, missing our planet by a mere two Earth radii. The asteroid was not discovered until it was just 15 hours from potential impact. This is one of several close calls in the past few years.
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A Planet Where it Rains Igneous Rocks!
October 15, 2009 | Washington University in St. Louis
COROT-7b is an exoplanet that orbits the star COROT-7. It it so close to the star that temperatures are thought to be high enough to vaporize silicate rocks. Above the surface the vapors can cool to produce a rain of igneous rocks.
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How Fast Does Magma Rise In An Eruption?
October 14, 2009 | Ludwig-Maximilians-Universität München
Researchers have determined that magma can rise very rapidly during some types of explosive volcanic eruptions. If magma can rise rapidly then deep magma might be able to produce an eruption in less than the time needed to detect, confirm, communicate and evacuate.
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A New Model for Banded Iron Formations
October 13, 2009 | University of Wisconsin - Madison
A new model for the deposition of banded iron formations offers a more complete picture of Earth’s environment between 3.8 and 1.7 billion years ago, including interactions between rocks, water, and air.
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Enormous New Ring Discovered Around Saturn
October 8, 2009 | NASA
NASA’s Spitzer Space Telescope has discovered an enormous ring around Saturn — by far the largest of the giant planet’s many rings. The ring was not discovered before because it is a very difuse scatter of ice and dust particles.
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Image by U.S. Geothermal, Inc.
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Fracturing Rock to Make Geothermal More Productive
September 29, 2009 | University of Utah
University of Utah researchers will use a method similar “hydraulic fracturing” done by the natural gas industry to stimulate the yield of a geothermal well at a US Geothermal, Inc site near Malta, Idaho. Increasing the number of fractures in the rock should enhance its ability to deliver steam.
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Highest Mountain On Each Continent
September 28, 2009 | Geology.com
A Google map with a pushpin marking the location of the highest point on each continent. Do you know the name of the mountain that has the highest elevation in Europe? Zoom in for a satellite view.
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Monitoring Water Use From Space
September 20, 2009 | NASA
A video describes how NASA scientists can use the thermal wavelengths from Landsat data to estimate how much water is being used on a field-by-field basis.

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Free Printable State Maps
September 11, 2009 | Waterproof-Paper.com
Here is a website where you can download and print an unlimited number of state maps for students. For all fifty US states there are county maps, cities maps and outline maps.
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Printable Geologic Time Scale
September 2, 2009 | Geology.com
Here is an easy-to-print geologic time scale in Microsoft Word format that we offer as a reference for students and teachers.
Please feel free to print this time scale, place it on your website, bookmark it or link to it as it suits your purpose. It lists the eras and periods with a scale of years for easy reference.
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Eruption of an Underwater Volcano
August 27, 2009 | National Science Foundation
Scientists visited NW Rota-1 Volcano on the ocean floor near the island of Guam three years ago. They recently returned to find enormous numbers of shrimp, crab, limpets and barnacles growing on the flanks of the volcano. They also measured the impact of the eruption on local water chemistry.
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Eruption and Recovery at Kasatochi Volcano, Alaska
August 27, 2009 | USGS
The August 7, 2008 eruption of Alaska’s Kasatochi Volcano completely covered Kasatochi Island with several meters of ash and volcanic material. It killed all of the island’s plants, fish and animals – it virtually sterilized the island. This ecological event also provided a rare research opportunity – a chance to see how species recolonize the island.
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Free Printable Graph Paper
August 20, 2009 | Waterproof-Paper.com
Here’s where you can get a variety of free printable graph papers in easy to use .pdf files. Grid paper, axis paper, isometric paper, ternary paper, polar paper and more.
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Volcanic Eruption Types
August 20, 2009 | Geology.com
Jessica Ball has authored an article on the types of volcanic eruptions. It has descriptions and photos of Hawaiian, Strombolian, Vulcanian, Plinian, Surtseyan and lava dome eruptions. Check it out!
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NASA Image
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Impact Between Planets Detected
August 13, 2009 | NASA
“Spitzer Space Telescope found evidence of what might be a planet collision which occurred a few thousand years ago. This planet impact was located about 100 light years from earth, near a star, HD 172555, which is still in the early stages of planet formation.” Quoted from the NASA press release.
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NASA Image
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Depletion of Northern India’s Water Supply
August 13, 2009 | NASA
Much of northern India is dependent upon a reliable supply of groundwater for public use and irrigation. Rapid population growth, economic development and groundwater-based irrigation produce a level of groundwater use that can not be sustained.
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Meteorites on Mars
August 12, 2009 | Geology.com / NASA
Photos of meteorites found by NASA’s Mars Exploration Rover Opportunity and Spirit. These robots have found about 1/2 ton of meteorites in their travels in the short time that they have been driving around Mars.
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Fossil Spiders Revealed by 3D Imaging
August 10, 2009 | Imperial College London
“Scientists at Imperial College London have created detailed 3D computer models of two fossil spiders that lived about 300 million years ago. The study reveals some of the physical traits that helped them to hunt for prey and evade predators.” Quoted from the Imperial College London release.
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San Andreas Fault Beneath Salton Sea
August 6, 2009 | University of California, San Diego
“New research by a team of scientists from Scripps Institution of Oceanography at UC San Diego and the U.S. Geological Survey offers new insight into the The San Andreas Fault as it extends beneath Southern California’s Salton Sea.” Quoted from the news release.
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Volcanic Hazards Article
August 3, 2009 | Geology.com
Jessica Ball has written an interesting article on volcanic hazards. It contains photos and descriptions for lava flows, pyroclastic density currents, pyroclastic falls, lahars and volcanic gases.
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Climate Change and Colorado Basin Water Supplies
August 3, 2009 | University of Colorado at Boulder
Warmer, drier climate is causing water supplies in the Colorado River basin to deplete at a very rapid rate. The warming climate is a greater threat than population growth and could cause depletion of reservoir storage by mid-century.
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