GeoPicture
GeoPicture of the Week: Spaghetti Rock
Photo by Mike Beauregard. What we're seeing here is the ductility of the marble. According to the picture author, the marble dates from the Lower Proterozoic,...
#GeoPicture of the WeekThe Sahara Desert in Algeria, as seen by Japan’s ALOS satellite
It's almost poetry: this image taken by the Advanced Land Observing Satellite "DAICHI" (ALOS) satellite shows the beauty and harshness of the Sahara desert. The Japanese Space Agency (JAXA) wrote: The...
GeoPicture of the Week: Uvarovite
Uvarovite is a type of chromium-bearing garnet, one of the rarest minerals of garnets. Garnet species are found in many colors including red, orange, yellow, green, purple, brown, blue, black, pink,...
#GeoPicture of the Week: Odyssey hits 60,000 Mars orbits
This image shows, in false color, the region around Gale Crater on Mars. It was taken by the 2001 Mars Odyssey spacecraft - but we just call it Odyssey. Odyssey has been orbiting...
GeoPicture of the Week: The Moon’s Geology
It's absolutely baffling that we've reached a level where we can not only study the geology of the Earth, but also that of other bodies in the solar system -...
GeoPicture of the Week: Patagonia’s shrinking ice fields
Image Credit: NASA/Landsat 8 The photo was taken with NASA's Landat 8 satellite. Landsat is the longest-running enterprise for acquisition of satellite imagery of Earth, with...
GeoPicture of the Week: Beautiful Hematite
Hematite is a fairly common mineral consisting of iron and oxygen (Fe2O3). Hematite can occur in a variety of colors, from black to steel or silver-gray, brown to reddish brown, or...
GeoPicture of the Week: Snow-Covered Volcanoes Seen From Space
The picture was taken by an astronaut aboard the International Space Station (ISS), focusing on two snow-covered volcanoes in Russia’s Far East. The volcano in the center of the image is called Bolshaya Ipelka and...
GeoPicture of the Week: The Atlantic Ocean Floor
The geology of the ocean floor is truly spectacular - perhaps even more than land geology. Unfortunately, it's really hard to study... you know, being on the ocean floor and...
GeoPicture of the Week: Crinoid Fossils
Crinoids are marine animal (not plants) that have been around since the late Cambrian, some 500 million years ago. Crinoids usually have a stem used to attach themselves to a substrate,...
GeoPicture of the Week: Xico Crater in Mexico
It's a new year alright, and what better way to start it than with a GeoPicture? This is the Xico volcanic crater in Mexico. Image via...
GeoPicture of the Week: Rhodochrosite Stalagmite ‘jawbreaker’
This mineral looks so delicious, I could gobble it up like candy!
GeoPicture of the Week: Natural Fluorite
Fluorite (also called fluorspar) is a mineral consisting of calcium fluoride, CaF2. It belongs to the halide minerals, alongside common salt (called halite in its mineral form). Halide minerals crystalize...
GeoPicture of the Week: Cubic Salt Crystals at Salar de Uyuni, Bolivia
These are perfectly cubical salt crystals, spotted at Salar de Uyuni, the world’s largest salt flat, located in Bolivia. Image via Imgur. Each crystal belongs to a...
GeoPicture of the Week: Polished Pallasite
Image via Imgur. This is a polished marble of a pallasite - a type of stony-iron meteorite, consisting mostly of centimeter-sized olivine crystals. Olivine is a silicate...
GeoPicture of the Week: Martian Chronicles
The Astro-geology team working on analyzing the photos from Curiosity Rover is having a busy week. They recently posted this amazing picture and announced their plans for the future. The...
GeoPicture of the Week: The Ferpècle Glacier
The Ferpècle Glacier is a 6.5 km (4.0 mi) long glacier (2005) situated in the Pennine Alps in the canton of Valais in Switzerland. Image credits: Maël Torog.
Cross bedding explained, on an outcrop from Mars
NASA recently uploaded a strikingly beautiful photograph on their website showing a petrified sand dune on Mars. The image was actually pieced together from several shots taken using Curiosity's Mast...
GeoPicture of the Week: Pangaea with today’s borders
Today's Spain was close to Greenland, Tibet and Australia were neighbors, and Africa and South America were closely hugging - as can be roughly seen from today's coastline. This image...
GeoPicture of the Week: The Chocolate Hills
Image via Wikipedia. These brownish hills are actually limestone mounds in Bohol province in the Philippines. They are normally covered by grass, but turn a deep-brown colour...
