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Posted: 17 May 2012

Taken: 17 Sep 2011

3 favorites     2 comments    447 visits

1/250 • f/5.6 • 85.0 mm • ISO 100 •

Canon EOS 350D DIGITAL

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Geology Geology

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Keywords

geo:lon=-4.554251093254152 •
mudstone •
sedimentary structures •
siltstone •
upper Carboniferous •
Hercynian •
Variscan •
Bude Formation •
Crooklets •
turbidite •
load structures •
fining up •
geo:lat=50.834101224011405 •
Bude •
Cornwall •
England •
beach •
rocks •
geotagged •
coast •
sandstone •
cliff •
geology •
shale •
way up •
fold •
anticline •
close-up •
macro •

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Load structures on turbidite sandstones, Crooklets, near Bude, Cornwall

Load structures on turbidite sandstones, Crooklets, near Bude, Cornwall
On the limb of an anticline, near-vertically bedded turbidite sandstones in the Bude Formation (upper Carboniferous) display sedimentary structures which can be used to determine the 'way up' of the bedding. Here, the sandstones display small-scale slump or load structures on the basal surfaces, and some beds show 'fining up' on the grain size (indicated by gradual darkening of the bed).

These structures demonstrate that the vertical beds here get younger to the right.


Here's structure in its proper setting and orientation:
www.ipernity.com/doc/earthwatcher/39024212

and here:
www.ipernity.com/doc/earthwatcher/39024214

, Gudrun, slgwv have particularly liked this photo

Comments
 slgwv
slgwv club
Classic!
9 years ago.
 Earthwatcher
Earthwatcher club
Thanks! Also for the invitation to the Geology group. I have added the photo to the group pool.

(Edit: This was in the Geology group previously, but I mistakenly deleted it. I have now added it back in; hope that's OK)
9 years ago. Edited 9 years ago.

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