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Jordan (9): Petra (Rocks )


Jordan (9): Petra (Rocks )
Photo Information
Copyright: Moncef Moncef (Monceflibra) Gold Star Critiquer/Gold Note Writer [C: 110 W: 0 N: 261] (1002)
Genre: Places
Medium: Color
Date Taken: 2006-11-17
Categories: Nature
Exposure: f/4, 1/60 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2008-07-17 11:45
Viewed: 708
Points: 24
[Note Guidelines] Photographer's Note
Petra is one of the world's most beautiful architectural sites carved from some of the oldest exposed sandstone on Earth (Cambrian and Ordovician sanstone that is 450-550 million years old). However, the sandstone in Petra is typical in that it is comprised of colorless quartz clasts (the particles in sandstone) attached by a matrix binding that is composed of silica (Si), calcium (Ca), iron (Fe), aluminum (Al), manganese (Mn) and minor amounts of others (sodium (Na), lithium (Li), etc.). So the colors are only a function of colorants present in the matrix: browns from iron, yellows from Na and Fe, pinks from Na and Li, etc.

These minor matrix elements (ie. Ca, Mg, Mn, Fe, etc.) have mobilized and separated into what is commonly called 'Liesegang Banding' (banding in color and composition of ores caused by diffusion). However, the banding has been erroneously (and commonly) attributed to its deposition, but in fact when examined (and often simply observed) the original bedding (from coastal fluvial and dunal deposition) is unrelated to these spectacular colors that are not to be seen in the same way anywhere else on Earth.

In addition to showing the rocks of Petra, the picture depicts also tombs that are built inside the rocks.

Enjoy
tsesler, Matylda76, szatanowska, MagdalenaN, trampas, subs, Dot, Teresat, Romeu, mbrito has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To Romeu: Thank youMonceflibra 1 07-20 11:49
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Critiques [Translate]

hello Moncef;
what an interesting shot and place
good note, explains what can we see;
nice capture;
tfs;
pozdrawiam Karolina

Hi Moncef!

Great rocks...excellent colors...
Brilliant POV...id like to be in this chambers haha!

Kisses and TFS!

Ania

Well my dear Moncef
this POV is excellent, place look so mysterious, amazing colours and mood, great work
hugs
Mag...

Hi Moncef,
excellent natural frame with beautiful colours,
but in my opinion, there is a bit lack of sharpness at the middle,
welldone and tfs,
regards,
Taner
:) tomorrow

hi moncef.
a strange but fascinating image.
the colours are almost surreal and are definitely psychedelic.

nice use of the rocks as a frame.
fantastic notes as well. they have added a little extra piece of life to your image.
congrats.
Brian

  • Great 
  • subs Gold Star Critiquer/Gold Note Writer [C: 252 W: 0 N: 222] (2080)
  • [2008-07-18 7:27]

Hi Moncef,
The fomrations of these rocks never cease to astound me. Once again a lovely composition and colours.
Regards,
Subashini

  • Great 
  • Dot Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 1443 W: 31 N: 3109] (12644)
  • [2008-07-18 7:38]

Good morning Moncef
I can imagine how you felt when you discovered all these caves and all the colours and natural wonders.
Simply awesome sight and you caught it well.
Dot

Boa noite Moncef

here nature is pure art. Fabulous.
Have a good We my friend.

my regards

teresat

  • Great 
  • trekks Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2027 W: 147 N: 3408] (13641)
  • [2008-07-19 3:53]

hi Moncef

The sandstone color and texture is simply amazing in this capture and you 'killed 2 birds with 1 stone' by showing through the hole opening. This kind of photo is exactly what TE needs to share.

tfs, bill

  • Great 
  • EOSF1 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1568 W: 126 N: 2227] (20403)
  • [2008-07-19 8:54]

Fantastic shot Moncef! Great pov and composition, good details and exposure. Well done, thanks!

Mario

  • Great 
  • mbrito Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1638 W: 118 N: 2827] (11398)
  • [2008-07-20 14:52]

Hi again Moncef,
Astonishing rock colours and a great compo.
This all serie is wonderful.
Congrats, mb

  • Great 
  • Romeu Gold Star Critiquer/Gold Note Writer [C: 332 W: 0 N: 222] (1851)
  • [2008-07-21 4:57]
  • [+]

Hi Moncef,

This in the second time I felicitate you for this magical shot! I don't know why, but the first one is gone. I am geological Engineer, and i must contratulat you for this amazing image.

Best Regards my friend,
Romeu
PS Great note.

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