November 21, 2016

Monday Geology Picture: The Big Hole, Kimberley, South Africa

Monday Geology Picture: The Big Hole, Kimberley, South Africa

This week’s “Monday Geology Picture” is a shot of the Big Hole in Kimberley, South Africa. This hole, now filled partly with water, is the remains of an early diamond mine in a kimberlite (a rock type named after the town of Kimberley) pipe. The pipe was mined from 1871 to 1914 and today can be safely visited and observed (from a walkway) as part of a visit to The Big …

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Introducing a New Feature: Monthly Science Book Review

Introducing a New Feature: Monthly Science Book Review

I’ve been negligent with my blogging again. I was in hospital in October and out of action for a few weeks. I’m doing much better now but had to catch-up on a few things, mostly at work! So, my blogging suffered once again. To kick-start the blog again and go in a slightly different direction, I’d like to announce a new feature: a monthly science book review. I’ve been meaning …

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September 26, 2016

Monday Geology Picture: Travertine Timeline

Monday Geology Picture: Travertine Timeline

This week I’m featuring one of my all-time favorite geology pictures: a snapshot of layers of travertine, representing the build-up of carbonate crusts precipitated from springs over many years. This picture was taken several years ago during my Ph.D fieldwork in the Sultanate of Oman. The layers in this picture took several thousand years to accumulate.

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September 19, 2016

Monday Geology Picture: Old Maps of Africa

Monday Geology Picture: Old Maps of Africa

Earlier this year I visited a local wine farm here in the Western Cape of South Africa, and there I saw a lovely display of some reproductions of some old maps of Africa. I’m not sure about the background of these maps, but I snapped a few pictures because I thought they were interesting. If you recognize any of the maps, please let me know in the comments. Here are a …

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September 12, 2016

Monday Geology Picture: Pretty Purple Stichtite

Monday Geology Picture: Pretty Purple Stichtite

For this week’s picture here’s an example of one of my favorite minerals: stichtite, a lovely purple-colored chromium and magnesium rich carbonate. I saw this particular sample of stichtite for sale at a rock shop. Stichtite comes in a range of purple shades, from a pale pinkish purple to a rich, bright purple. I really like the lilac shade of this particular sample. The R3500 (about $250 US) cost for this sample was …

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September 8, 2016

35th International Geological Congress: Day #5

35th International Geological Congress: Day #5

Today I’m blogging about Day #5 (Friday) of the 35th International Geological Congress (IGC), which I attended last week in my home city of Cape Town, South Africa. You can also read my posts about Day #1, Day #2, Day #3, and Day #4. On Friday I spent the day attending talks on a variety of subjects, namely ophiolites, megafans, and gold. I saw a number of excellent talks, but in this blog …

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September 6, 2016

35th International Geological Congress: Day #4

35th International Geological Congress: Day #4

Today I’m blogging about Day #4 (Thursday) of the 35th International Geological Congress (IGC), which I attended last week in my home city of Cape Town, South Africa. You can also read my posts about Day #1, Day #2, and Day #3. On Thursday I only spent the morning at IGC since in the afternoon I had some private meetings offsite. I spent most of the morning attending some more talks on …

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September 5, 2016

Monday Geology Picture: Travertine Tile

Monday Geology Picture: Travertine Tile

For this week’s Monday Geology Picture, here’s a lovely travertine tile that I spotted in the Cape Town International Convention Centre, which was the site of the 35th International Geological Congress that I attended last week.

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September 2, 2016

35th International Geological Congress: Day #3

35th International Geological Congress: Day #3

Today I’m continuing my blogging about attending the 35th International Geological Congress (IGC) in my home city of Cape Town, South Africa, this week. You can find my first two posts here and here. The congress finished today, but I still need to write up my blog posts about days 3, 4, and 5. I’ll write about Day #3 today and then will write about the last two days over …

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August 30, 2016

35th International Geological Congress: Day #2

35th International Geological Congress: Day #2

This post continues my daily blogging about the 35th International Geological Congress (IGC) being held in here in my home city of Cape Town, South Africa. You can read my post on Day #1 here. Today was another busy day at the congress! In the morning I attended a few talks on the history of geology and was particularly interested in a talk by Martin Pickford on the history of geological research …

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