File:Geological cliffs - geograph.org.uk - 1417036.jpg
Geological_cliffs_-_geograph.org.uk_-_1417036.jpg (640 × 480 pixels, file size: 82 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionGeological cliffs - geograph.org.uk - 1417036.jpg |
English: Geological cliffs The thick bottom bed is Cretaceous chalk, formed in the ocean through calcium carbonate 'tests' of microfossils. It also contains echinoids, belemnites, bivalves and brachiopods. The chalk is Campanian in age (this period was within the Cretaceous period) and formed 71 to 83 million years ago when Britain was further south and had much nicer weather! Geologists know this because of echinoid Echinocorys Scutata which is a good Zone fossil. A Zone fossil is a species that can show the age of rock, so an organism that lives for 200 million years is rubbish compared to one that lives for 3 million for example.
The area above the chalk is the Wroxham crag (or Weybourne crag as known here). It is made up of earthy materials and contains lots of shells as well as derived fossils from the chalk. The Pastonian and Pre-Pastonian stage (of the early Pleioscene 800 to 1.3 MYA) has thickly bedded shell deposits and contains quartzite and is very similar to the Norwich crag. Deer and other mammals can be found here too, above, the crag is glacial deposits. |
Date | |
Source | From geograph.org.uk |
Author | Ashley Dace |
Attribution (required by the license) InfoField | Ashley Dace / Geological cliffs / |
InfoField | Ashley Dace / Geological cliffs |
Camera location | 52° 56′ 57″ N, 1° 08′ 25″ E | View this and other nearby images on: OpenStreetMap | 52.949280; 1.140400 |
---|
Object location | 52° 56′ 57″ N, 1° 08′ 29″ E | View this and other nearby images on: OpenStreetMap | 52.949160; 1.141400 |
---|
Licensing
[edit]This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Ashley Dace and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
|
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:53, 1 March 2011 | 640 × 480 (82 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Geological cliffs The thick bottom bed is Cretaceous chalk, formed in the ocean through calcium carbonate 'tests' of microfossils. It also contains echinoids, belemnites, bivalves and brachiopods. |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
_error | 0 |
---|
Structured data
Items portrayed in this file
depicts
52°56'57.41"N, 1°8'25.44"E
27 July 2009
52°56'56.98"N, 1°8'29.04"E
image/jpeg
- Information field template with formatting
- Files with coordinates missing SDC location of creation (52° N, 1° E)
- CC-BY-SA-2.0
- Images from Geograph Britain and Ireland
- Images from Geograph Britain and Ireland missing SDC depicts
- Images from Geograph Britain and Ireland missing SDC location of creation
- Media needing category review as of 3 May 2017
- Images by Ashley Dace
- United Kingdom photographs taken on 2009-07-27