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Geologic > Unconformity
The following information is about Unconformity.
Unconformity Defined
The contact between older rocks and younger sedimentary rocks in which at least some erosion has removed some of the older rocks before deposition of the younger. An angular unconformity shows that the older rocks have been deformed and eroded before the younger sedimentary rocks were deposited; there is an angle between the beds of the older and the younger.
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Off-site Unconformity Links, User Submitted
The following links have been collected through user bookmark submission in the Unconformity category. Please note, because these resources are off-site we cannot guarantee the accuracy or quality of any information.
Sun Mar 22
Tue Oct 28
- Siccar Point: Siccar Point Field Excursion Preview Introduction This preview is intended to give you a good idea of what the Siccar Point excursion is all about in terms of location and geological features. It is not an alternative to the excursion. You might think of it as briefing notes - the more you know in advance the more you will be able to engage in discussion and observation during the event. You will meet two major rock formations: * Silurian greywackes laid down in a deep sea environment about 425 million years ago. * Devonian sandstones deposited on a broad coastal plain periodically flooded by the sea about 345 million years ago.
Sat Jul 26
Fri Feb 1
- Images of Siccar Point: high res images of siccar point
Wed Jan 30
- Beach 4 angular unconformity on Flickr - Photo Sharing!: Layers of exposed sandstone and shale covered by glacial deposits at the entrance to Beach 4 along the Washington Pacific coast.
Thu Oct 6
- ASK A GEOLOGIST: ct geology
If you would like to find additional social bookmark based links on the topic of we recommend the Open Tag Directory > Unconformity. If you would like to find related tags we recommend Tag Patterns > Unconformity
Off-site Unconformity Research Links
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