Earthwatcher

Earthwatcher deceased

Posted: 17 May 2012


Taken: 17 Sep 2011

1 favorite     0 comments    330 visits

1/100 f/8.0 17.0 mm ISO 100

Canon EOS 350D DIGITAL


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Geology Geology



Keywords

beach
mudstone
sedimentary structures
siltstone
upper Carboniferous
Hercynian
Variscan
Bude Formation
Crooklets
turbidite
geo:lat=50.83411075657326
Bude
Cornwall
England
rocks
geotagged
coast
sandstone
cliff
geology
shale
way up
fold
anticline
geo:lon=-4.554290543308298


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Anticline, Crooklets, near Bude, Cornwall

Anticline, Crooklets, near Bude, Cornwall
An anticline in the Bude Formation (upper Carboniferous) at Crooklets, near Bude, Cornwall. The Bude Formation here consists of alternating thin beds of turbidite sandstones (pale grey/brown) and fine-grained shaly siltstones/mudstones (darker grey).

Minor crumpling on the south (right-hand) limb of the fold has resulted in near vertical or slightly overturned bedding. The sandstones display sedimentary structures which can be used to determine the 'way up' of the bedding. Here, the sedimentary structures are mostly rippled upper surfaces and small-scale slump or load structures on the basal surfaces. The latter can be seen in detail in the next two photos:

www.ipernity.com/doc/earthwatcher/39024212

www.ipernity.com/doc/earthwatcher/39024210

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