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Hi all,

I mentioned in a previous post that I had asked a friend's opinion. His reply reinforces some of the other Viewzone links regarding the natural formation of this site. I quote the relevant section of his reply below.

He is a doctor of geology working at the Institute for Frontier Research on Earth Evolution in Japan and I have the highest regard for his work and abilities. I hope he doesn't mind my quoting him but he explains the process better than I could.

>Hey Tony

Ive looked at the site and the pictures and im afraid that what your looking at is entirely natural. Im not sure why the US government bulldozed it though, that is the strange part. This type of weathering pattern is very very common.

Although to make a definitive answer I would have to actually see the rock but from the pictures I would explain it like this. I would presume (from one of the pictures-honeycomb rock) that the rock is either a fine
grained limestone or sandstone. This rock would have natural cracks and fractures, and yes sometimes incredibly regular in orientation and distribution. These are caused by the unloading or release of pressure
on the rock as material from above that is eroded. Ground water will firstly infiltrate (underground) along these cracks and with it, the water can carry many different mineral phases. The dissolution of minerals from
their original source and subsequent re-deposition in their new rock is controlled by changes in factors such as water pH. Minerals such as quartz (SiO2) calcite (CaCO3) and Iron (Fe2O3 and FeO) are common phases in phreatic fluids and Iron is especially susceptible to rapid transport and deposition. Considering this site has extensive mineralisation (both copper and iron) it is no surprise that iron is in the groundwater, or being re-deposited in other rocks.

To explain the spherical textures etc would go like this... Firstly the water is infiltrating along the cracks and joints so these are the first to be mineralised, i.e. have iron deposited. Through time the water will
progressively penetrate deeper into the rock and hence so will the mineralisation. This will make tree-ring like structures, but which have grown (or been deposited) from the outside in. Given long enough the whole rock will be completely infiltrated . Because the iron is being deposited in between the host rocks own mineral grains the iron is essentially acting as a cement holding the grains together and thus making the rock less resistant to erosion. The honeycomb texture is produced when such a rock is exposed to the air and weather, the main rock which is now inherently weaker and more susceptible to erosion than the cemented portion will erode much quicker thus producing a hard shell and soft yolk....

However, the biggest mystery for me is why it was bulldozed!! Such actions only stir people into thinking that there is something mystical or magical, rather than explaining it.

All the best,

si<

Enough said?

regards,

tony

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Subject Views Written By Posted
Has anyone ever seen rock formations like this? 168 Jaimi 22-Apr-02 01:58
what am I doing wrong??? 83 Jaimi 22-Apr-02 01:59
Re: Has anyone ever seen rock formations like this? 73 Jaimi 22-Apr-02 02:04
I give up 100 Jaimi 22-Apr-02 02:05
Re: I give up 115 Don Holeman 22-Apr-02 02:26
Thanks Don 96 Jaimi 22-Apr-02 03:04
Re: I give up 107 drak1 22-Apr-02 02:32
Re: I give up 94 Jaimi 22-Apr-02 02:49
Re: Has anyone ever seen rock formations like this? 100 Jaimi 22-Apr-02 03:05
Jaimi - HTML Problem 143 Tripp 22-Apr-02 07:09
Re: Has anyone ever seen rock formations like this? 82 Richard Essame 22-Apr-02 04:19
Re: Has anyone ever seen rock formations like this? 94 Aristarchus 22-Apr-02 10:35
Re: Has anyone ever seen rock formations like this? 112 Mike B 22-Apr-02 18:44
Re: Has anyone ever seen rock formations like this? 69 Aristarchus 23-Apr-02 20:23
Re: Has anyone ever seen rock formations like this? 73 mephisto 22-Apr-02 05:24
Re: Has anyone ever seen rock formations like this? 72 Archae Solenhofen 22-Apr-02 07:19
Re: Has anyone ever seen rock formations like this? 115 mephisto 22-Apr-02 17:31
well said 78 konuzion 22-Apr-02 21:09
Why Phoenician's? 109 Mike B 22-Apr-02 22:50
Re: Why Phoenician's? 72 konuzion 22-Apr-02 23:36
Re: Has anyone ever seen rock formations like this? 83 Archae Solenhofen 23-Apr-02 03:16
Re: Has anyone ever seen rock formations like this? 66 mephisto 23-Apr-02 03:55
Re: Has anyone ever seen rock formations like this? 94 Archae Solenhofen 23-Apr-02 05:54
Re: Has anyone ever seen rock formations like this? 136 Mike B 23-Apr-02 17:56
Re: Has anyone ever seen rock formations like this? 115 Mike B 23-Apr-02 19:20
Re: Has anyone ever seen rock formations like this? 126 Archae Solenhofen 23-Apr-02 21:10
Re: Has anyone ever seen rock formations like this? 109 Mike B 24-Apr-02 23:59
Re: Has anyone ever seen rock formations like this? 105 KatDawg 22-Apr-02 17:32
Re: Has anyone ever seen rock formations like this? 84 Mike B 22-Apr-02 19:27
Re: Has anyone ever seen rock formations like this? 102 mephisto 22-Apr-02 21:05
Re: Has anyone ever seen rock formations like this? 114 Archae Solenhofen 23-Apr-02 02:42
Re: Has anyone ever seen rock formations like this? 112 Mike B 23-Apr-02 17:31
I agree with Mike, Archae 136 Jaimi 23-Apr-02 17:55
Re: I agree with Mike, Archae 111 Mike B 23-Apr-02 18:19
Re: I agree with Mike, Archae 115 Archae Solenhofen 23-Apr-02 22:20
Re: I agree with Mike, Archae 76 Jaimi 24-Apr-02 03:18
Re: Has anyone ever seen rock formations like this? 100 Archae Solenhofen 23-Apr-02 22:10
Re: Has anyone ever seen rock formations like this? 81 Mike B 24-Apr-02 18:53
Re: Has anyone ever seen rock formations like this? 87 Archae Solenhofen 24-Apr-02 19:24
Re: Has anyone ever seen rock formations like this? 88 Anomalies 24-Apr-02 20:29
I don't agree... 108 Jaimi 22-Apr-02 19:46
close but no cigar 83 Jaimi 22-Apr-02 19:48
Entirely natural 69 konuzion 23-Apr-02 21:02
Re: Entirely natural 108 David Campbell 25-Apr-02 21:55
Re: Entirely natural 84 konuzion 26-Apr-02 00:05
Re: Entirely natural 77 David Campbell 26-Apr-02 03:11


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