Thames Group
E401565
The Thames Group is a geological rock unit in southeast England, primarily consisting of Paleogene-age marine and estuarine sediments that overlie older formations in the London Basin.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Thames Group canonical | 2 |
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
geological group
ⓘ
lithostratigraphic unit ⓘ |
| chronostratigraphicPosition | early to middle Eocene for much of the succession ⓘ |
| contains |
Oldhaven Formation
ⓘ
surface form:
Harwich Formation
London Clay Formation ⓘ Reading Formation ⓘ
surface form:
Reading Formation in some classifications
glauconitic sands in some members ⓘ |
| country | United Kingdom ⓘ |
| depositionalEnvironment |
deltaic in parts
ⓘ
estuarine ⓘ marine ⓘ |
| extendsTo |
Greater London
ⓘ
surface form:
Greater London area
Thames Estuary area ⓘ parts of Essex ⓘ parts of Kent ⓘ |
| geologicalAge | Paleogene ⓘ |
| hasColor | typically grey to brown clays and silts ⓘ |
| hasEconomicUse | source of brick clay in southeast England ⓘ |
| hasFossils |
marine invertebrates
ⓘ
microfossils ⓘ plant remains ⓘ |
| hasStratigraphicCode | THAM (BGS code, context-dependent) ⓘ |
| hasTypicalThickness | several tens to over 100 metres depending on location ⓘ |
| isDocumentedIn |
BGS OpenGeoscience
ⓘ
surface form:
British Geological Survey Lexicon of Named Rock Units
|
| isImportantFor |
hydrogeological studies in the London Basin
ⓘ
understanding Paleogene sea-level changes in southeast England ⓘ |
| isPartOfBasinFill | London Basin ⓘ |
| lithology |
clay
ⓘ
estuarine sediments ⓘ marine sediments ⓘ sand ⓘ silt ⓘ |
| locatedIn |
London Basin
ⓘ
southeast England ⓘ |
| namedAfter |
Thames
ⓘ
surface form:
River Thames
|
| overlies |
Chalk Group
ⓘ
Lambeth Group ⓘ |
| partOf |
Cenozoic sedimentary succession of the London Basin
ⓘ
Paleogene stratigraphy of the United Kingdom ⓘ onshore stratigraphy of southern Britain ⓘ |
| recordedBy | British Geological Survey ⓘ |
| region | England ⓘ |
| stratigraphicRank | group ⓘ |
| underlies |
Bracklesham Group
ⓘ
London Clay Formation where subdivided differently in some schemes ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.