2014

SO9391 : Nodular Limestone with bentonite layer

taken 10 years ago, near to Dudley, England

Nodular Limestone with bentonite layer
Nodular Limestone with bentonite layer
At a quarry on the west side of Wren's Nest, a good insight can be had into the internal structure of the Nodular Limestone Member. Here thicker limestone layers alternate with thin bands of sandstone. The limestone is a deposit from shelly organisms living in a shallow shelf sea, while the sandstone is terrigenous, i.e. has been transported here by rivers after flooding events on nearby land. Amongst this, there are two thin and very crumbly layers. These are made up of bentonite, a clay deposit originating from volcanic ash. The shelly creatures clearly had to contend with quite a lot of environmental pressure, but the fact that limestone layers follow after each sandy or volcanic bed shows that they have been able to cope. Geologist's head shown for scale.

Creative Commons Licence [Some Rights Reserved]   © Copyright Rudi Winter and licensed for reuse under this Creative Commons Licence.
Geographical Context: Geological interest Quarrying, Mining Park and Public Gardens Primary Subject: Rock
This photo is linked from: Automatic Clusters: · Nodular Limestone Member [6] · Layers [4] ·
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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SO9391, 150 images   (more nearby 🔍)
Photographer
Rudi Winter   (more nearby)
Date Taken
Sunday, 8 June, 2014   (more nearby)
Submitted
Monday, 25 August, 2014
Subject Location
OSGB36: geotagged! SO 9351 9173 [10m precision]
WGS84: 52:31.4044N 2:5.8250W
Camera Location
OSGB36: geotagged! SO 9350 9173
View Direction
EAST (about 90 degrees)
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Image classification(about): Supplemental image
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