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King country karst


King country karst
Photo Information
Copyright: Steve Reekie (LordPotty) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1449 W: 146 N: 3764] (12035)
Genre: Landscapes
Medium: Color
Date Taken: 2004-11-29
Categories: Mountain
Camera: Panasonic Lumix DMC-FZ-2-S
Exposure: f/4, 1/320 seconds
Photo Version: Original Version, Workshop
Date Submitted: 2004-12-02 15:35
Viewed: 1615
Points: 16
[Note Guidelines] Photographer's Note
Waitomo is a district in the midwest of New Zealands North Island, best known for its world famous Waitomo Glow Worm Caves.
There is limestone along much of New Zealands west coast.The Waitomo limestone is around 30 million years old.Limestone is formed when shells,fish skeletons and other marine organisms are deposited on the sea floor.Later on,natural folding and lifting of the earths crust causes the area to be raised out of the water.The resulting deposits are rich in calcium which is easily dissolved by natural organic acids,even though the limestone rock is very hard.
As rainwater filters through decaying vegetation it absorbs carbon dioxide,making it into carbonic acid.This seeps into cracks in the limestone causing them to enlarge as the calcium (carbonate) dissolves.As the fissure increases in size,larger particles are washed through causing erosion to occur and the widening process to be accelerated.This is how caves start to form.
Caves form along horizontal fissures (passages) or in vertical fissures (shafts,chambers).Occasionally a large area of dissolved fissures will all collapse together to form what is known as a cavern or chamber.
In this photo you can see the fine horizontal lines in the limestone rock that indicate where the fissures are.
I've called this King country karst,because Waitomo is considered to be in the heart of the King country,some of the finest farming country anywhere.I spent Monday down here caving with Gareth (the lizard man) so I have a few more photos from this region to show.I hope you'll find them interesting.
PDP, willie, extramundi, red45, Robbrown has marked this note useful
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ThreadThread Starter Messages Updated
To extramundi: Good workshopLordPotty 1 12-03 05:39
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Critiques [Translate]

  • Great 
  • PDP Gold Star Critiquer/Gold Star Workshop Editor [C: 2821 W: 344 N: 3779] (11769)
  • [2004-12-02 15:50]

Hi Steve, I was wondering where you had got to. Very nice picture, very formidible and very interesting. It reminds me a little of a termite nest. Good shot.

  • Great 
  • willie Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1023 W: 61 N: 648] (2083)
  • [2004-12-02 15:51]

Very nice portrait Steve. Interesting notes. Good post

A very nice composition, it is an interesting shot. I love NZ, I would like to go there sometime. I made a workshop to show the detail fo the rocks. TFS.

hi steve,
this is a magical part of our country.it is so cool you can post photos of our day it was a shame that the day had to end .looking forward to the next time we can trek nature... G

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2705 W: 74 N: 8864] (30243)
  • [2004-12-03 5:12]

Now I know, why Lord of the Rings movie was created in NZ :-) Beautiful country. Very good shot of this unusual rock!

I seemed to have missed a lot of your recent posts sorry, I plead otherproblems posts mean I miss seeing posts from friends.
an intresting karst formation we see here , more used to seeing cracks and holes, any pics from below ground?

  • Great 
  • livios Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2156 W: 322 N: 4258] (16906)
  • [2004-12-03 22:32]

Steve, I like the scenario here. Besides, a great note of yours.

Good job.

Lívio

  • Great 
  • japie Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1814 W: 100 N: 1904] (5187)
  • [2004-12-04 1:07]

Great shot and excellent note Very well done and thanks for posting.

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