Photographed in June 2011 during the second of two hikes on the mud flats with a handcart
I am now working in the east end of the Columbia River Gorge. It is a beautiful drive home. View it large.
These famine huts dot the country side throughout Ireland… Most of the windows are filled with stone due to the “window tax” imparted by the government to gain funds during the Great Potato Famine. If they couldn’t afford the tax, they had to block up their windows.
This is another vertorama made on Inishmore of the Aran Islands as we headed back to catch the last ferry of the season off the island.
Northbound GWR grain pickup from Coronach with engines 2002 and 2000 is doubling its train from Lisieux to Assiniboia in the rolling hills south of Scout Lake
Un pescador madrugador en Patricia Lake, Jasper National Park, Alberta, Canada
Esta imagen no está disponible para su uso en páginas web, blogs o cualquier otro soporte sin mi autorización por escrito.
This image is not available for use on websites, blogs or other media without my explicit written permission.
© Rafa Irusta, All Rights Reserved
Gear: Canon 5D Mk II | Canon 17-40
Tessellated Pavement at dawn - love the light and the cloud/fog over the hills.
Here is my trip video of my trip to Tasmania in Autumn 2011 - you can check it out here - www.youtube.com/watch?v=tmjd0WyzkX0
My previous video, “Tasmania, Spring 2011 - A Compilation” can be found here - www.youtube.com/watch?v=4WBGjkiarxc
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A tessellated pavement is a rare erosional feature formed in flat sedimentary rock formations lying on some ocean shores. The pavement bears this name because the rock has fractured into polygonal blocks that resemble tiles, or tessellations. The cracks (or joints) were formed when the rock fractured through the action of stress on the Earth’s crust and subsequently were modified by sand and wave action.
A characteristic example of this formation may be found at Eaglehawk Neck on the Tasman Peninsula of Tasmania. This example consists of two types of formations: a pan formation and a loaf formation.
The pan formation is a series of concave depressions in the rock that typically forms beyond the edge of the seashore. This part of the pavement dries out more at low tide than the portion abutting the seashore, allowing salt crystals to develop further; the surface of the “pans” therefore erodes more quickly than the joints, resulting in increasing concavity.
The loaf formations occur on the parts of the pavement closer to the seashore, which are immersed in water for longer periods of time. These parts of the pavement do not dry out so much, reducing the level of salt crystallisation. Water, carrying abrasive sand, is typically channeled through the joints, causing them to erode faster than the rest of the pavement, leaving loaf-like structures protruding.