October 20, 2014

Monday Geology Picture(s): Geological Sampling on the Moon

Monday Geology Picture(s): Geological Sampling on the Moon

If you think that regular geological field work and sampling can be challenging, try doing those tasks in a spacesuit. During my recent (June 2014) trip to Washington, DC, I visited the Smithsonian Air and Space Museum. Among many wonderful things, I saw a display that included some sampling tools that astronauts in spacesuits used to help them collect samples from the lunar surface during the Apollo missions. You can read …

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October 13, 2014

Monday Geology Picture: A Mineral Rainbow at the Smithsonian

Monday Geology Picture: A Mineral Rainbow at the Smithsonian

Minerals come in a rainbow of colors. Sometimes, mineral color is a result of the mineral’s composition. For example, azurite is always blue. Other times, mineral color is a result of small quantities of trace elements or structural defects in the mineral. For example, quartz, one of the most common minerals, is most often clear or white but can be other colors such as rose pink, yellow, purple, and even …

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October 6, 2014

Monday Geology Picture: Cape Town from the Sea

Monday Geology Picture: Cape Town from the Sea

On Saturday, I unexpectedly had to hop on a ship for a month for a work trip. So, blogging may be a little bit light over the next month. I’ll try to post when I can, but I’ll be limited by the slow shipboard internet. As the ship was leaving Cape Town on Saturday afternoon, I enjoyed some stunning views of Cape Town from the sea. The picture above shows …

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September 29, 2014

Monday Geology Picture: U-Shaped Glacial Valley, Seward Peninsula, Alaska

Monday Geology Picture: U-Shaped Glacial Valley, Seward Peninsula, Alaska

When glaciers erode landscapes, they often leave behind characteristic U-shaped valleys. This week’s Monday Geology Picture shows a U-shaped glacial valley on the Seward Peninsula in Alaska. This valley is located just outside of the gold mining town of Nome. Does anyone else have good pictures of U-shaped valleys?

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September 25, 2014

Sutherland Sky: Part VI – Dwyka Diamictite

Sutherland Sky: Part VI - Dwyka Diamictite

At long last, I’m finishing up my series of posts about my October 2013 visit to the small town of Sutherland in South Africa’s Northern Cape province. Sutherland is home to a South African Astronomical Observatory (SAAO) research station that contains many telescopes, including the Southern African Large Telescope (SALT). You can read Part I of this series here, Part II of this series here, Part III of this series here, Part IV of this series here, and Part V of this …

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September 22, 2014

Monday Geology Picture(s): Two Views from the Top of Table Mountain

Monday Geology Picture(s): Two Views from the Top of Table Mountain

My two American geologist friends, with whom I went ziplining amidst some sedimentary rocks a little over a week ago, left on Saturday. Before they left on their evening flight, we decided to go up Cape Town’s beautiful Table Mountain. We took the cable car up the mountain, hiked around on the top for a couple of hours, and then took the cable car back down. Saturday was a beautiful …

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September 15, 2014

Monday Geology Picture(s): Cross-Bedding in Ceres, South Africa

Monday Geology Picture(s): Cross-Bedding in Ceres, South Africa

Soon, I’ll continue with sharing more pictures from my geological wanderings in Mauritius earlier this year. However, for this week’s “Monday Geology Picture” I want to share some pictures from my recent visit to the little town of Ceres in the Western Cape of South Africa. Last Friday, I went to Ceres for the day with my husband and two friends visiting from America. Ceres is about an hour and a …

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September 13, 2014

Chamarel Waterfall, Mauritius

Chamarel Waterfall, Mauritius

Today I’m continuing with sharing some pictures from my March 2014 trip to the volcanic island of Mauritius. You can see some of my previous posts on Mauritius here, here, and here. Mauritius is a tropical island, so in many places the lava rocks, particularly the older ones, are covered by thick green vegetation. However, there are some places where you can see the lavas well. One of those places is …

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September 8, 2014

The Young Volcanic Landscape of Mauritius

The Young Volcanic Landscape of Mauritius

For the next little while, I will be blogging about my recent (March 2014) vacation to Mauritius, a young volcanic island in the Indian Ocean. I recently shared a couple of pictures of volcanic basalt in Mauritius for my “Monday Geology Picture” posts here and here. In future posts, I’ll write a little more about the volcanic history of Mauritius. In brief, Mauritius is believed to have been formed by a …

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Monday Geology Picture(s): Vesicular Basalt Boulder, Mauritius

Monday Geology Picture(s): Vesicular Basalt Boulder, Mauritius

Continuing with some pictures from my trip to Mauritius back in March, for this week’s “Monday Geology Picture” post I am sharing some pictures of a large boulder of vesicular basalt. This particular boulder is located in the town of Grand Gaube in northern Mauritius and is used as a decorative stone on which a plaque has been mounted. Vesicular basalt is a dark-colored volcanic rock that contains many small holes, …

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