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The cliff face consists of granitic gneisses cut by basaltic dikes. It is elevated above the surrounding area by a fault near the edge of the Adirondack Mountains. |
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The open pit at the top of the Homestake Gold Mine in Lead, South Dakota beautifully exposes a series of Tertiary rhyolite dikes that were the focus of the hydrothermal system that formed this rich gold deposit. The open pit is no longer active, but it is a great opportunity for geologists to get a glimpse into the uppermost crust of the Earth.
Note that when viewing this in Google Earth, I have placed it in a position that corresponds with the shooting location as seen in the current satellite imagery. Unfortunately, the digital elevation model and the satellite imagery are not well registered at this time, so although I took this GigaPan at the edge of the open pit, it appears to be quite a distance from the edge when one compares it with the topography in Google Earth. |
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Taken from a lonely, no longer used bridge in the grasslands between the dikes and the river Waal.
This image has been built up out of 12 pictures taken with 6x optical zoom. Since no tripod was used, some clipping occured on either above and below the picture. |
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I was driving really hard to catch this roadcut in the right light. It wasn't quite as spectacular as I remembered it, but it still shows off some pretty good geology. |
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Baboquivari Peak is a Jurassic granitoid and there are many related igneous dikes visible in this GigaPan. The peak is also sacred to the Tohono O?odham people.
The Kitt Peak Observatory is also visible on the horizon. |
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View on the stretched grasslands between the dikes and the river. These areas are flooded when the water level rises. At the other side of the river is a nuclear facililty which has been closed a number of years ago. |
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Druten, view from the dike at sunset (20:30pm)
Consists of 5, merged in photoshop. F/4, ISO 80, 1/80sec |
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Between the dikes and the river itself, a variety of wildlife can be observed.
Consists of 5, merged in photoshop. F/2.8, ISO 80, 1/60 sec |
