GEOLOGICAL TIMESCALE
Shown below is a representation of the rocks underlying the Tees Valley and Darlington districts in Northeast England. The diagram depicts the relative thickness of the different systems. Absolute ages are given alongside. Click on the different areas to view more details about a particular time period.
Geological column showing the relative thickness and absolute [...]
Introduction
Column showing divisions in the Triassic System of the Tees Valley.
The Triassic Period was named in 1841 by German geologist Friedrich August von Alberti (1795-1878), after a suite of rocks which occur between those of the Permian and Jurassic. This succession was further subdivided into a three-fold sequence of Bunter [...]
Grid Reference NZ 459 096
BGS Sheet 33
OS Sheet 93
Forwarded as RIGS 30/09/2003
Site Description
Site Status SNCI
Description of Geodiversity River-cliff exposure revealing the contact between the Sherwood sandstone and the overlying Mercia mudstone. The Sherwood sandstone forms a washed platform and waterfall.
Literature References
Site Map
Site Assessment
Access and Safety
Comments
Rating
Safety of access
Along footpath to waterfall
10
Safety of [...]
Grid Reference NZ 526 304
BGS Sheet 27
OS Sheet 93
Forwarded as RIGS No designation
Site Description
Site Status None
Description of Geodiversity Small exposure revealing a wave washed scar consisting of Sherwood sandstone
Literature References The Geology of the Country Between Durham and West Hartlepool – Dennis Smith 1967
Site Map
Site Assessment
Access and Safety
Comments
Rating
Safety of access
Down safe steps [...]