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31 May 2020

Mount Coot-tha Building Stones

  A few weeks ago, I put up a blog post about a Gold Mine Hike at Mount Coot-tha in Brisbane, Australia.  I wrote that the gold was found in meta-sedimentary rocks, but I didn’t show any good pictures of the rocks. This is because the rocks are highly weathered and also mostly covered with vegetation in the area where the hike is located. This morning I went with my …

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30 April 2020

Gold Mine Hike at Mount Coot-tha, Brisbane, Australia

Considering the COVID-19 travel restrictions at the moment, my ability to go on georneys (geological journeys) is very limited at the moment. However, here in Australia we are fortunate that we can still go outside for some recreation, as long as we stay close to home. We live close to Mount Coot-tha, a mountain with a beautiful forest reserve and botanic garden. Most weekends, I go for a hike with …

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21 September 2018

Friday fold: quartz veins in metagraywacke of the Mather Gorge Formation

It’s Friday! Here’s a lovely sight, contributed by reader Fred Atwood: [youtube_agu id=Au-jIGfbs8g] Those are quartz veins in one of my favorite local rock units, the Mather Gorge Formation. Fred reports, This is at Madeira School in Great Falls between Black Pond and the Potomac. The rocks around Great Falls, particularly those on the Billy Goat Trail’s “A” Loop, are exemplary in many regards. That’s why I am taking my …

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5 February 2018

Monday Geology Picture: Gold Train

This week I’m sharing a picture of a bullion coach, or a special train that was used to transport gold from the mines in the Johannesburg area to the seaside towns of Durban and Cape Town in South Africa. This particular train is on display at Gold Reef City, a gold mining themed amusement park. You can go and see the train yourself if you visit the park. Gold theft …

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3 February 2016

Book Review: Diamonds, Gold, and War

Earlier this week I shared a picture of a few books on diamonds that are on my current reading list. I’ve also mentioned in a couple of previous posts that I’d like to share with you a little information about some of the geology-themed books that I’ve read recently. Today I’ll be blogging about the first book, which is titled Diamonds, Gold, and War: The British, the Boers, and the …

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23 July 2013

Accretionary Wedge #58: Signpost Outside of Nome, Alaska

I’m currently in Nome, Alaska for another season of fieldwork. So, if I’m a bit scarce around here over the next several weeks, that’s why. However, I hope to share a few pictures from Alaska now and then. Here’s one to start things off. While driving around the Nome area today, I ran across this fun signpost. I think that it is a perfect entry for Accretionary Wedge #58! Don’t …

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17 June 2013

Monday Geology Picture(s): Gold Vending Machine, Dubai

This week I’m continuing with sharing some pictures from my January 2012 trip to visit my friend Karima in Abu Dhabi, United Arab Emirates. One day we drove over to Dubai for some sightseeing. We drove around, did some shopping, and visited the Burj Khalifa, the world’s tallest building. When we were at the Burj Khalifa, I noticed a strange vending machine: one that sells gold! Specifically, the vending machine …

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3 June 2013

Monday Geology Picture(s): Golden Dessert at the Emirates Palace Hotel, Abu Dhabi

For this week’s “Monday Geology Picture” post, I’m continuing with sharing some pictures from my trip to the United Arab Emirates in January 2012. I’ve already shared some pictures of kayaking in Abu Dhabi and of the stunning decorative stones of the Sheikh Zayed Grand Mosque. One day while I was in Abu Dhabi, my friend Karima and I went to the impressive and opulent Emirates Palace Hotel. According to …

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15 April 2013

Monday Geology Picture(s): Gold Reef City– Some Historical Views

This week I’m sharing the last pictures from my September 2012 visit to Gold Reef City, Gold Reef City, a gold mining themed amusement park in Johannesburg, South Africa. The amusement park is built on the site of an old gold mine, and these pictures provide some insight into what life was like on the mine in days gone by. There is a museum with some pictures and information on …

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8 April 2013

Monday Geology Picture(s): Gold Reef City– Trains

I have a few more pictures to share with you from my September 2012 visit to Gold Reef City, a gold mining themed amusement park in Johannesburg, South Africa. Check out some of my previous “Monday Geology Picture” posts for some more pictures from the park. This week I’m sharing some pictures of trains. One of the things that I like about Gold Reef City is that there are trains …

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1 April 2013

Monday Geology Picture(s): Gold Reef City– Some Rides

After passing through the mining themed entrance, enjoying an underground mine tour, watching a gold pouring demonstration, and panning for gold, my husband and I decided to enjoy some of the rides during our visit to Gold Reef City, a mining-themed amusement park in Johannesburg, South Africa. We visited the theme park back in September 2012. The first ride that we went on was some sort of crazy rollercoaster where …

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25 March 2013

Monday Geology Picture(s): Gold Reef City– Panning for Gold

After passing through the mining-themed entrance, going on an underground mine tour, and watching a gold pouring demonstration at Gold Reef City (a gold mining themed amusement park in Johannesburg, South Africa), my husband and I decided to try the “Gold Panning” activity. I must admit, we were somewhat disappointed in this activity, which involved “panning” for some shiny metal (but not gold– it was very different in texture, density, …

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18 March 2013

Monday Geology Picture(s): Gold Reef City– Gold Pouring Demonstration

After entering through the impressive entrance and going on the underground mine tour, my husband and I went to the gold pouring demonstration at Gold Reef City, a theme park in Johannesburg, South Africa that is situated on the site of an old gold mine. We visited the theme park back in September 2012. The gold pouring demonstration doesn’t use real gold but is nevertheless impressive! Also, there is a …

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11 March 2013

Monday Geology Picture(s): Gold Reef City– Underground Mine Tour

For a few weeks, I’m sharing some pictures from a visit to Gold Reef City, a gold mining themed amusement park in Johannesburg, South Africa, back in September 2012. Last week I shared some pictures of the mining-themed entrance. This week I am sharing some pictures from the underground mine tour. The park is located on the site of an old gold mine. Now that water is no longer being …

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4 March 2013

Monday Geology Picture(s): Gold Reef City– The Entrance

Back in November, I shared a couple of pictures from a trip to the Gold Reef City theme park in Johannesburg, South Africa. Over the next few weeks, I thought I would share some more pictures from a visit to this gold mine turned amusement park. My husband and I visited the theme park back in September 2012 when we were up in Johannesburg for my sister-in-law’s wedding. If you …

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3 February 2013

The Last Train to Nowhere in Pictures

I thought I would continue with a few more posts from Alaska. My husband and I were in Nome, Alaska during July – September 2012. On sunny (and some stormy) days we were generally working. However, on days with poor weather and high seas or winds, we often had some time to explore Nome and the surrounds. One day, we drove up the road to visit The Last Train to Nowhere, …

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16 December 2012

Geology Word of the Week: G is for Glacial Erratic

def. Glacial Erratic: A rock which has been transported and deposited by a glacier and which has a different lithology than the rock upon which it has been deposited. Often, erratic rocks have an angular shape because they were broken off of bedrock by glaciers and have not yet had time to be weathered and rounded by water, wind, and other erosional forces. Glacial erratics can range in size from very …

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13 November 2012

Monday (Whoops-Tuesday) Geology Picture: Old Mining Posters at Gold Reef City, Johannesburg, South Africa

Well, I did it again. I forgot to post my Monday Geology Picture on Monday. Sorry about that! I had a long, busy day at work. After work, my husband and I went to see a movie with some friends and only arrived home fairly late. This week, I thought I would share a picture of some old mining posters which I saw on an underground mine tour (of an …

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17 September 2012

Monday Geology Picture(s): Garnet Sands in Nome, Alaska

Above is a gorgeous beach sand picture for this week’s Monday Geology Picture. I took this picture a few weeks ago in Nome, Alaska after a summer storm. The beaches of Nome are rich in red garnet grains. The beaches of Nome are also very rich in grains of gold, and you can bet that if you pan some of the red garnet sand along the Nome beaches, you will …

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