File:The Quarterly journal of the Geological Society of London (12646256174).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (1,226 × 2,069 pixels, file size: 473 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description

^82 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. .Feb. 18,
fig. 2), and are then succeeded by three tiers of a fine-grained mi-
caceous stone containing more or less lime (c). This is the first
appearance of mica in the Middle Lias ; and from this horizon up-
wards it will be found to occur at intervals up to the highest of the
Upper Lias Sands. The thickness of the blocks in the " Three Tiers,"
as I have termed them, varies much, as does likewise that of the
intervening marl ; in the aggregate they measure from 20 to 26 feet.
Above these, in Westhay Cliff, we find some 20 feet more of micaceous
marl (6), which is succeeded by Greensand (a). There is thus a
thickness of about 220 feet of Middle Lias in this hiU ; and the best
exposure of the beds is to be seen upon Westhay Cliff at, and to the
eastward of, a gully called " Breakneck." Prom this point to the
eastward the cliff decreases in height, and the beds dip in the same
direction, as far as a little stream called Ridge Water, near which
a piece of broken swampy ground conceals a downthrow to the east,
of about 40 feet. This brings us to Gabriel's Water, at which com-
mences the fine section of the Golden Cap.
Fig. 2.— Vertical Section of the Middle Lias at Westhay Cliff.
feet.
a. Greensand, chert, and Drift .... about 180
b. Grey micaceous marl 16 to 20
c. "The Three Tiers" — micaceous sandstone in
sandy micaceous shale and grey marl — about 20
d. Grey marl (not micaceous) with thin ferru-
ginous seams, and masses of pyrites ... 73
e. The Green Ammonite-beds — nodules imbed-
ded in grey marls 18
/. Grey marl, as above 15
g. The Belemnite-stone.
h. Grey shale and layers of marl.
ft. Grey marl 16 to 22
k. Grey Lias stone 12 to 18
/. Blue marl 32
m. Limestone with Belemnites ; Ammonites rari-
costatus in the lower beds.
n. Lower Lias 30 to 40
3. The Golden Cap. — The principal portion of this hill is based
upon the Belemnite-beds (*, fig. 3), and the marls immediately over
the beach are those containing the Green Ammonite-nodules. Above

these, the « Three Tiers" are here finely developed, and form a remark-
Date
Source https://www.flickr.com/photos/biodivlibrary/12646256174
Author Geological Society of London
Full title
InfoField
The Quarterly journal of the Geological Society of London.
Page ID
InfoField
35328247
Item ID
InfoField
109632 (Find related Wikimedia Commons images)
Title ID
InfoField
51125
Page numbers
InfoField
Page 282
Names
InfoField
NameFound:Belemnites NameConfirmed:Belemnites EOLID:4780330 NameBankID:4089090
BHL Page URL
InfoField
https://www.biodiversitylibrary.org/page/35328247
Page type
InfoField
Text
Flickr sets
InfoField
  • The Quarterly journal of the Geological Society of London. v. 19 (1863).
Flickr tags
InfoField
Flickr posted date
InfoField
20 February 2014
Credit
InfoField
This file comes from the Biodiversity Heritage Library.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

العربية ∙ বাংলা ∙ Deutsch ∙ English ∙ español ∙ français ∙ italiano ∙ 日本語 ∙ македонски ∙ Nederlands ∙ polski ∙ +/−



Licensing

[edit]
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic 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.
This image was originally posted to Flickr by BioDivLibrary at https://flickr.com/photos/61021753@N02/12646256174. It was reviewed on 27 August 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

27 August 2015

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.

Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current21:43, 26 August 2015Thumbnail for version as of 21:43, 26 August 20151,226 × 2,069 (473 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{BHL | title = The Quarterly journal of the Geological Society of London. | source = http://www.flickr.com/photos/biodivlibrary/12646256174 | description = ^82 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. .Feb. 18, <br> fig. 2), and a...

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:The_Quarterly_journal_of_the_Geological_Society_of_London_(12646256174).jpg&oldid=922296493"