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January 15, 2018
Monday Geology Picture: Constantia Granite
For this week’s post, here’s a picture that I took yesterday during a Sunday afternoon hike with my family. We went for an easy stroll, baby and all, along the Alphen Trail in the Constantia region of Cape Town here in South Africa. My son is 3 months old now, and we’re just starting to go on some easy hikes as a family. The Alphen Trail is more of a …
November 6, 2017
Monday Geology Picture: Inselberg View
For this week’s picture, here’s a lovely view of an inselberg and the Twelve Apostles section of Table Mountain here in Cape Town, South Africa. Note the layers of sedimentary rocks of which the mountain is made. In the foreground, you can see some rocks of the Cape Granite Suite, which is about 550 million years old.
May 2, 2016
Monday Geology Picture: Granite Boulder in the Forest
For this week’s “Monday Geology Picture” here’s a shot of a pretty granite boulder that I spotted during a forest hike in the Constantia region of the Cape Town, South Africa. No doubt, this boulder consists of ~550 million year old Cape Granite. There’s no scale in this picture, but the boulder is about 2 meters wide.
November 30, 2015
Monday Geology Picture(s): Granite and Penguins at Boulders Beach, Simonstown
Last week I shared a few pictures from beautiful Boulders Beach just down the road in Simonstown, South Africa. This week I thought I’d share some more pictures of granite – and penguins! – at Boulders Beach. In the close-up shots, note gorgeous the potassium feldspar megacrysts in the granite. Most visitors to the beach focus on the penguins, but the granites are quite spectacular, too! Enjoy!
November 23, 2015
Monday Geology Picture(s): Boulders Beach, Simonstown, South Africa
Just down the road from where I live there is a fantastic place to observe gigantic granite boulders: Boulders Beach in Simonstown. Actually, you can see granite boulders on many beaches in the greater Cape Town area. These granites are part of the regional Cape Granite Suite and are roughly 550 million years old. However, Boulders Beach is special because it has a particularly good collection of large boulders… and …
January 13, 2014
Monday Geology Picture(s): Oudekraal Beach, South Africa
Yesterday was my 30th birthday. Amongst other wonderful things, my husband Jackie organized a surprise birthday party for me at Oudekraal, a beautiful beach (and national park) here in Cape Town. Bordered on one side by gigantic boulders and turquoise-blue waters and flanked on the other side by tall, jagged, gray-green mountains, Oudekraal is a stunning location. Jackie rented a kayak, brought plenty of delicious picnic food, and invited many …
August 20, 2012
Monday Geology Picture(s): Maine Geology Extravaganza!
Adam and Kelly, my friends from college, recently (back in June) were married. For their honeymoon Adam and Kelly went to Maine. Adam was kind enough to send me some geology-themed pictures from their honeymoon, and I thought I’d share them here on Georneys. These pictures are from Owl’s Head State Park and Acadia National Park. I’ve provided a few notes about the photos, but please feel free to leave …
January 25, 2012
Accretionary Wedge #42: Countertop Geology
Ian Saginor of the blog Volcanoclast is hosting this month’s accretionary wedge, and this month’s theme is countertop geology! Here’s the call for posts: Have you seen a great countertop out there? Sure, everyone says it’s “granite”, but you know better. Take a picture, post it on your own blog or send it to me and I’ll post it for you. Do you think you know what it is or …
January 23, 2012
Monday Geology Picture: A Dark-Colored Xenolith in the Cape Granite
A little dark-colored xenolith (isn’t it adorable?) in Cape Granite, Clifton Beach, Cape Town, South Africa, October 2011. I’m back home in Cape Town, so I thought I’d post a local picture for this week’s Monday Geology Picture. The above picture shows a small, dark-colored xenolith in the Cape Granite, a 550 million year old granite that has megacrysts (very big crystals) of feldspar. This xenolith is most likely a …
