Technical Description: Please Help

Mine exploration, photographs and mining history for mine explorers, industrial archaeologists, researchers and historians

a b c d e f g h i j k l m n o p q r s t u v w x y z

RobBain
50.2% (Neutral)
Newbie Topic Starter

10 years ago

Hi

As some subscribers know, I took some aerial shots at Parys Mountain some months ago. I want to enter one of them in a competition but need to provide a couple of accompanying sentences saying what the picture actually is. I have no technical knowledge in this area.

Could any subscriber help please? I attach a reduced-res version of the shot. All I need to say is what it is (eg. what is the geology / what causes the vibrant and unusual colours etc.)?

Anyone?

Many thanks,

Rob

🔗95527[linkphoto]95527[/linkphoto][/link]

[tweak]Photo link fixed - to display a photo in a forum post just copy and paste the copy and paste the code under "Copy & Paste Forum Code" shown below the photo[/tweak]

Wanna join the discussion?! Login to your AditNow Community forum account or Register a new forum account

Vanoord
54.4% (Neutral)
Newbie

10 years ago

Copper, basically.

Various copper compounds as well as zinc compounds.

http://en.wikipedia.org/wiki/Parys_Mountain

The various compounds kill off pretty much anything that tries to grow there, so it looks very stark.

Hello again darkness, my old friend...

TheBogieman
50.2% (Neutral)
Newbie

10 years ago

Also, a lot of initial smelting was done on the mountain top - heaping the primarily chalcopyrite (copper sulphide) ore up, mixed with coal to burn off the sulphides and reduce the ore to copper oxide which then went to the smelter proper. A lot of the redness is the remains of these pyres...

Explorans ad inferos

Roy Morton
50.2% (Neutral)
Newbie

10 years ago

Generally speaking, the site was a huge sulphide deposit, and at it's height knocked the bottom out of the Cornish copper industry.

"You Chinese think of everything!"
"But I''m not Chinese!"
"Then you must have forgotten something!"

Minegeo
50.2% (Neutral)
Newbie

10 years ago

The Parys Mountain deposit is a Volcanic-Hosted Massive Sulphide deposit hosted in Caradocian-aged volcanics within the East Avalonian Terrane. Mineralization comprises several lenses of stratiform massive sulphides and associated stockwork zones of sulphides within siliceous volcanics. The dumps show post-mine oxidation of the sulphides to a range of hydrous iron oxides including jarosite, goethite and limonite which give rise to the ochreous colour spectrum in the photograph. In addition residues from roasting of the low grade copper ores to enable leaching and some smelter residues give rise to the deeper coloured tones.

This help ??

RobBain
50.2% (Neutral)
Newbie Topic Starter

10 years ago

"Minegeo" wrote:
The Parys Mountain deposit is a Volcanic-Hosted Massive Sulphide deposit hosted in Caradocian-aged volcanics within the East Avalonian Terrane. Mineralization comprises several lenses of stratiform massive sulphides and associated stockwork zones of sulphides within siliceous volcanics. The dumps show post-mine oxidation of the sulphides to a range of hydrous iron oxides including jarosite, goethite and limonite which give rise to the ochreous colour spectrum in the photograph. In addition residues from roasting of the low grade copper ores to enable leaching and some smelter residues give rise to the deeper coloured tones.

This help ??

This is really appreciated - and exactly what is needed. Many thanks indeed (and to the other respondents as well). Kindest regards to you all,

Rob