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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? 216 Jaimi 22-Apr-02 01:58
what am I doing wrong??? 123 Jaimi 22-Apr-02 01:59
Re: Has anyone ever seen rock formations like this? 112 Jaimi 22-Apr-02 02:04
I give up 141 Jaimi 22-Apr-02 02:05
Re: I give up 159 Don Holeman 22-Apr-02 02:26
Thanks Don 136 Jaimi 22-Apr-02 03:04
Re: I give up 148 drak1 22-Apr-02 02:32
Re: I give up 134 Jaimi 22-Apr-02 02:49
Re: Has anyone ever seen rock formations like this? 148 Jaimi 22-Apr-02 03:05
Jaimi - HTML Problem 200 Tripp 22-Apr-02 07:09
Re: Has anyone ever seen rock formations like this? 126 Richard Essame 22-Apr-02 04:19
Re: Has anyone ever seen rock formations like this? 135 Aristarchus 22-Apr-02 10:35
Re: Has anyone ever seen rock formations like this? 153 Mike B 22-Apr-02 18:44
Re: Has anyone ever seen rock formations like this? 112 Aristarchus 23-Apr-02 20:23
Re: Has anyone ever seen rock formations like this? 119 mephisto 22-Apr-02 05:24
Re: Has anyone ever seen rock formations like this? 115 Archae Solenhofen 22-Apr-02 07:19
Re: Has anyone ever seen rock formations like this? 157 mephisto 22-Apr-02 17:31
well said 123 konuzion 22-Apr-02 21:09
Why Phoenician's? 151 Mike B 22-Apr-02 22:50
Re: Why Phoenician's? 112 konuzion 22-Apr-02 23:36
Re: Has anyone ever seen rock formations like this? 128 Archae Solenhofen 23-Apr-02 03:16
Re: Has anyone ever seen rock formations like this? 105 mephisto 23-Apr-02 03:55
Re: Has anyone ever seen rock formations like this? 138 Archae Solenhofen 23-Apr-02 05:54
Re: Has anyone ever seen rock formations like this? 177 Mike B 23-Apr-02 17:56
Re: Has anyone ever seen rock formations like this? 159 Mike B 23-Apr-02 19:20
Re: Has anyone ever seen rock formations like this? 177 Archae Solenhofen 23-Apr-02 21:10
Re: Has anyone ever seen rock formations like this? 154 Mike B 24-Apr-02 23:59
Re: Has anyone ever seen rock formations like this? 158 KatDawg 22-Apr-02 17:32
Re: Has anyone ever seen rock formations like this? 121 Mike B 22-Apr-02 19:27
Re: Has anyone ever seen rock formations like this? 142 mephisto 22-Apr-02 21:05
Re: Has anyone ever seen rock formations like this? 157 Archae Solenhofen 23-Apr-02 02:42
Re: Has anyone ever seen rock formations like this? 152 Mike B 23-Apr-02 17:31
I agree with Mike, Archae 183 Jaimi 23-Apr-02 17:55
Re: I agree with Mike, Archae 149 Mike B 23-Apr-02 18:19
Re: I agree with Mike, Archae 159 Archae Solenhofen 23-Apr-02 22:20
Re: I agree with Mike, Archae 118 Jaimi 24-Apr-02 03:18
Re: Has anyone ever seen rock formations like this? 145 Archae Solenhofen 23-Apr-02 22:10
Re: Has anyone ever seen rock formations like this? 121 Mike B 24-Apr-02 18:53
Re: Has anyone ever seen rock formations like this? 131 Archae Solenhofen 24-Apr-02 19:24
Re: Has anyone ever seen rock formations like this? 128 Anomalies 24-Apr-02 20:29
I don't agree... 149 Jaimi 22-Apr-02 19:46
close but no cigar 124 Jaimi 22-Apr-02 19:48
Entirely natural 109 konuzion 23-Apr-02 21:02
Re: Entirely natural 150 David Campbell 25-Apr-02 21:55
Re: Entirely natural 129 konuzion 26-Apr-02 00:05
Re: Entirely natural 121 David Campbell 26-Apr-02 03:11


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