From Ice to Fire 8
|Copyright: Neels Gunter (corjan3)
|Date Taken: 2010-01-28|
|Categories: Ocean, Lichens|
|Camera: Canon PowerShot A640|
|Exposure: f/4.1, 1/200 seconds|
|More Photo Info: [view]|
|Photo Version: Original Version|
|Date Submitted: 2013-10-05 6:52|
|[Note Guidelines] Photographer's Note|
|This is the eighth in the series under the title FROM ICE TO FIRE - A TWO HUNDRED MILLION YEAR JOURNEY BETWEEN TWO DESERTS. To follow the whole story one would have to start from Image 1.|
The rivers feeding the Ecca Sea are now actively building their deltas out into the sea in response to uplift in the source area which, in turn, is the result of the continent-continent collision in the southeast. This represents the final phase of the filling-in of that sea which is part of the Great Karoo Basin that formed by downwarping of Earth's crust to balance the orogenesis (mountain building)in the provenance. These upward-coarsening cycles are typical of progradational delta deposits and will be shown close-up in the next upload.
Lichens, with their white colour, seem to have a preference for these sandstones where they grow on the shady side of outcrops.
Ancient delta deposits often host important petroleum resources but that is not the case here. However, it is almost certain that there are gases like methane, hydrogen sulphide and sulphur dioxide trapped in these strata in the subsurface. Several companies are looking at fracking operations to extract the gases from the shales at depths of more than a kilometre. This involves drilling and pumping water under very high pressure down the boreholes to cause the shales to fracture and release the gas. Numerous solutes are used with the water and it is said that some are toxic and even carcinogenic. It is being argued that boreholes for water in the area are only a few tens of metres deep but the structures on which they are drilled extend right down through the crust. Should the groundwater become polluted, large parts of the arid interior will be rendered unsuitable for habitation and commercial stock farming.
bdragoiu, Hotelcalifornia, kinglove has marked this note useful
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- [2013-10-05 8:42]
Hi Neels,difficult light but another very good result,need just a bit of brightness,but the details are excellents and the colors too,very interesting new large view.Have a nice Sunday and thanks,Luciano
Another beautiful picture of your series.Nice to go through with this NOTE.
Thanks for sharing such information with beautiful picture,
Regards and have a nice time,
- [2013-10-06 3:32]
Very interesting and informative series.
Thanks for sharing.
Excellent capture of an interesting wide view with fine details,TFS.
- [2013-10-06 13:27]
The beauty of nature been beautifully presented with good sharpness, superb colouration and Details,exposure and focus is spot on!Well done, Neels and thanks for the wonderful notes.Regards Siggi
- [2013-10-06 16:56]
A wonderful shot of this unique geological rock formation. Nicely framed and giving us a great look at what sedimentary formations of this type look like from a distance.
What I find most interesting is your notes about possible fracking operations being done in areas such as this. We are actually going through this type of drilling right now in my state of Ohio. Companies are buying up mining rights in many areas and paying the landowners extremely large sums of money to drill these same types of wells. The long term effects on our natural resources is very concerning to many, but it seems the possibility of creating new jobs and becoming wealthy overrides the uncertainties for others. TFS.