2014

SW6536 : Holman's Test Mine - Geology

taken 10 years ago, near to Troon, Cornwall, England

This is 1 of 3 images, with title Holman's Test Mine - Geology in this square
Holman's Test Mine - Geology
Holman's Test Mine - Geology
A quartz hematite vein with argillised alteration zone. Hydrothermal fluids have altered the feldspars in the granite to clays (kaolinite - China Clay). The black vein (tourmaline) doesn't cross cut this (it is earlier).

Creative Commons Licence [Some Rights Reserved]   © Copyright Ashley Dace and licensed for reuse under this Creative Commons Licence.
Geographical Context: Geological interest
This photo is linked from: Automatic Clusters: · Geology [3] · Hematite Vein [2] Title Clusters: · Holman's Test Mine - Geology [3] ·
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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Grid Square
SW6536, 32 images   (more nearby 🔍)
Photographer
Ashley Dace   (more nearby)
Date Taken
Friday, 7 February, 2014   (more nearby)
Submitted
Friday, 7 February, 2014
Subject Location
OSGB36: geotagged! SW 6568 3667 [10m precision]
WGS84: 50:11.0161N 5:17.0191W
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Image classification(about): Supplemental image
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