Welcome to the latest offering in the TVRIGS Rock of the Month series of articles. This month I thought that we might examine a broad group of deposits known as argillaceous rocks, collectively referred to as argillites (clay rocks), as opposed to arenites (sandstones) and rudites (conglomerates, tillites and breccias).
Derived from the Latin Argilla – [...]
This page provides a glossary of geological terms to be found on the TVRIGS website and elsewhere. It is an evolving document and will grow as the site expands.
T
Triassic
Named (by von Humbodt, 1795) from a three-fold division (red-beds, chalk and black shales) which occurs in Germany. [...]
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 [...]
Welcome to the Tees Valley RIGS Group Website.
The place for you to find out more about the geology and industrial heritage of Redcar & Cleveland, Middlesbrough,
Stockton, Hartlepool and Darlington.
Alum, Alchemy and Ammonites Page
Future Events Page
Past Events Page
Why not check out our new site description pages and geo-trails
Boulby – Cowbar Hummersea Loftus [...]
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 [...]
The word Geology comes from the ancient Greek, Ge (γη) meaning Earth (not to be confused with Gaia (Γαια) the Greek Earth goddess) and Logos (λογος) meaning word or study of, amongst other things. So Geology literally means Study of the Earth.
The the addition of the letter ‘o’ to spell geo was simply to [...]
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 465 146
BGS Sheet 33
OS Sheet 93
Forwarded as RIGS 30/09/2003
Site Description
Site Status SNCI
Description of Geodiversity Small river-cliff feature revealing an exposure of Mercia mudstone
Literature References
Site Map
Site Assessment
Access and Safety
Comments
Rating
Safety of access
Along footpath from industrial estate
10
Safety of exposure
On opposite river bank footpath
10
Restricting conditions
High flow episodes will cover exposure
6
Multiple exposure
Cleveland Dyke [...]
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 [...]