From Ice to Fire 10
|Copyright: Neels Gunter (corjan3)
|Date Taken: 2010-01-29|
|Camera: Canon PowerShot A640|
|Exposure: f/4, 1/250 seconds|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2013-10-09 12:44|
|[Note Guidelines] Photographer's Note|
|Tenth in the series under the title FROM ICE TO FIRE - A 200 MILLION YEAR JOURNEY BETWEEN TWO DESERTS. To follow the whole story one would have to start with the first image.|
This part of Gondwana has now moved well away from the south pole. Rivers coming off the mountains in the southeast are, 260 million years ago, meandering nortwestwards over their own previously deposited sediments with which they filled up the Ecca Sea. Their channels migrate laterally, as well as downstream, leaving sand deposits in the form of point bars, levees and crevasse splays in their wake. Very large floodplains that do not dry up for long periods exist and suspended mud settling out from the tranquil waters form layers of mudstone and shale (as in the photo). Only occasionally do the floodplains remain dry for long enough that oxidation of the iron compounds in the argillaceous (very fine grained) sediments can occur, as testified to by the presence of the "red" unit about one third up from the bottom in the photo. It is in this wet and marshy environment that a community of fauna exists, the mammal-like reptiles with great diversity, and begins to leave behind possibly the world's longest unbroken and most famous fossil record.
Note: This image does not purport to be of high photographic merit. Instead it tries to convey a message of some scientific significance.
maaciejka, kinglove, Hotelcalifornia, lousat has marked this note useful
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Ciao Neels, great view of interesting geological formation, excellent clarity, wonderful colors and splendid light, very well done, my friend, ciao Silvio
interesting geological formation. Nice colours. Very good presentation. Interesting note.
Thanks for sharing,
- [2013-10-09 23:46]
very nice rock pattern into very nice details of it! just imaging these had been with us million of years! how fasinating! thanks for sharing.Regards Siggi
First of all, thanks very much for your PS on my Common Tiger by removing the twig. I like the revised version very much.
Nice shot of this site with excellent sharpness and details plus gorgeous natural coloration.
Thanks and regards!
Another beautiful picture with good NOTE.Good documentation.Like it.
Thanks for sharing,
Regards and have a nice time,
- [2013-10-10 13:57]
Hi Neels,a different composition whit original colors,another nice work of the time,perfect details as usual.Have a nice day and thanks,Luciano