tvrigs.org.uk » Magnesian Limestone http://www.tvrigs.org.uk Conserving Geodiversity in Redcar & Cleveland, Middlesbrough, Stockton, Hartlepool & Darlington Mon, 21 Nov 2011 17:11:57 +0000 en hourly 1 2008 tvrigso@tvrigs.org.uk (tvrigs.org.uk) tvrigso@tvrigs.org.uk (tvrigs.org.uk) 1440 http://tvrigs.org.uk/wp-content/plugins/podpress/images/powered_by_podpress.jpg tvrigs.org.uk http://www.tvrigs.org.uk 144 144 geology in the Tees Valley tvrigs.org.uk tvrigs.org.uk tvrigso@tvrigs.org.uk no no Crimdon Dene http://www.tvrigs.org.uk/archives/27 http://www.tvrigs.org.uk/archives/27#comments Tue, 06 May 2003 10:13:00 +0000 admin http://tvrigs.org.uk/archives/27
Contents
  1. Site Description
  2. Site Map
  3. Site Assessment
  4. Surveyors

photo of entrance to gorge

Grid Reference NZ 471 371
BGS Sheet 27
OS Sheet 93
Forwarded as RIGS 30/09/2003

Site Description

Site Status SNCI
Description of Geodiversity Deep gorge environment revealing exposures of Magnesian limestone. The gorge forms steep sides consisting of face of Magnesian limestone in a fluvial environment. Glacial erratics can be found in the stream bed.
Literature References The Geology of the Country Between Durham and West Hartlepool – Denis Smith 1967

Site Map

Site Assessment

Access and Safety Comments Rating
Safety of access Along Hart to Haswell walkway  
Safety of exposure View from river channel  
Restricting conditions High flow episodes  
Multiple exposure Gorge length from walkway to viaduct  
Note It is strongly suggested that on-site safety be the responsibility of the party leader(s), as the safety information above is given only as a guide.  

photo of botryoidal texture

Education and Science Comments Rating
Surface processes Fluvial processes and glacial processes 10
Geomorphology River gorge 10
Sedimentary rock Magnesian limestone and possible evaporite layer 10
Igneous rock Erratics in stream bed 2
Metamorphic rock Erratics in stream bed 2
Fossils None specific 1
Minerals None specific 1
Structural features Dip examples of up to 20° 7
Stratigraphy Brecciated Magnesian limestone material above evaporite layer 8

photo of stream undercutting

Geodiversity Value Comments Rating
Education Due to access education potential questionable 1
Scientific Study of Earth scientists 10
Historical Limited historical significance 1
Aesthetic Excellent examples of geodiversity and biodiversity 10

Surveyors

Andrew Carter, John Waring
]]> http://www.tvrigs.org.uk/archives/27/feed 0 Hartlepool Headland http://www.tvrigs.org.uk/archives/28 http://www.tvrigs.org.uk/archives/28#comments Thu, 03 Apr 2003 10:34:50 +0000 admin http://tvrigs.org.uk/archives/28
Contents
  1. Site Description
  2. Site Map
  3. Site Assessment
  4. Surveyors

Grid Reference NZ 524 344
BGS Sheet 27
OS Sheet 93
Forwarded as RIGS 30/09/2003

photo of flat stack feature

Site Description

Site Status SNCI
Description of Geodiversity Wave washed platform of Magnesian limestone. The exposure reveals examples of stack an pillar coastal features.
Literature References The Geology of the Country Between Durham and West Hartlepool – Denis Smith 1967

Site Map

Site Assessment

Access and Safety Comments Rating
Safety of access Care needed underfoot on access steps 5
Safety of exposure Tide Table should be consulted 5
Restricting conditions High tide and adverse weather 5
Multiple exposure The whole headland exposure 10
Note It is strongly suggested that on-site safety be the responsibility of the party leader(s), as the safety information above is given only as a guide.  

photo of wave-washed platform

Education and Science Comments Rating
Surface processes Coastal processes 10
Geomorphology Wave washed platform 10
Sedimentary rock Magnesian limestone 10
Igneous rock None  
Metamorphic rock None  
Fossils None specific 2
Minerals None specific 2
Structural features Dip angle of up to 2° 5
Stratigraphy Well exposed Magnesian limestone 5

photo of tidal gullying feature

Geodiversity Value Comments Rating
Education Coastal processes 8
Scientific Limited scope for study 5
Historical Limited historical value 5
Aesthetic Excellent coastal wave washed platform 10

Surveyors

Andrew Carter
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