The geology of the western English Channel and its western approaches:
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
London
HM Stationery Office
1990
|
| Schriftenreihe: | United Kingdom offshore regional report
9 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Literaturverz.: S. 84 - 90 |
| Beschreibung: | VIII, 93 S. zahlr. Ill., Kt. |
| ISBN: | 011884475X |
Internformat
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Datensatz im Suchindex
| _version_ | 1805072623363686400 |
|---|---|
| adam_text |
Titel: The geology of the western English Channel and its western approaches
Autor: Evans, C. D. R
Jahr: 1990
Contents
1 Introduction 1
Geographical and geological terms 1
Previous research 1
Activity of the British Geological Survey (BGS) 4
Hydrocarbon exploration 7
Deep Sea Drilling Project 7
British Institutions Reflection Ptofiling Syndicate
(BIRPS) 7
2 Physiography 11
The coastal zone 11
The inner shelf 12
Shoals 12
The outer shelf 12
The shelfbreak 13
The continental slope 14
3 Crustal structure 16
Crustal thickness 16
Lower crust 16
Middle crust 18
Upper crust 19
4 Basement 20
Cornubian Ridge 20
Ordovician and Silurian 20
Devonian 20
Lizard Complex 20
The rocks around the Eddystone Reef, Start Point
and Dodman Point 21
Carboniferous 21
Armorican Massif 21
Precambrian 21
Cambrian 22
Ordovician to Carboniferous 22
Offshore results 22
Variscan orogeny 23
Variscan igneous rocks 26
Variscan batholiths 26
Cornubian Batholith 26
Haig Fräs Batholith 26
Granites under the outer shelf and continental
slope 27
Late Carboniferous and Early Permian volcanics 27
5 Post-Carboniferous structural development 29
Tectonic mechanisms 29
Tectonic history 29
The rifting and subsidence phase ? Early Permian
to Late Jurassic 29
The Middle Jurassic to Early Cretaceous events 32
The opening of the North Atlantic 36
The post-rifting phase ? late Aptian to late
Paleocene 36
Alpine events?Eocene to Miocene 38
General considerations 38
The Western Approaches Trough and South Celtic
Sea Basin 39
Transfer faults 40
The development of the present topography 41
Halokinesis 42
6 Permo-Triassic 43
Western Approaches Trough 43
Melville Basin 43
St Mary's and Plymouth Bay basins 48
Southwest Channel and Brittany basins 48
Basins on, and north of, the Cornubian
Platform 48
7 Jurassic 50
Lower Jurassic 50
Middle Jurassic 51
Upper Jurassic 51
The Middle Jurassic to Early Cretaceous erosional
events 52
8 Cretaceous 53
Lower Cretaceous 53
Berriasian to Valanginian 53
Hauterivian to Barremian 53
Aptian to Albian 55
Early Cretaceous igneous intrusions 56
Upper Cretaceous 56
Lithology and stratigraphy of the Chalk 58
Cenomanian 60
Turonian and Coniacian 60
Santonian to Maastrichtian 61
9 Tertiary 63
Paleocene 63
Eocene 64
Oligocenc 66
The pre-unconformity Oligocenc sequencc 67
The post-unconformity Oligocenc sequence in the
northern part of the Western Approaches
Trough 67
The post-unconformity late Eocene to early
Oligocene sequence north of the Cornubian Plat-
form 67
Bovey Formation 68
Neogene 68
Jones Formation 69
Cockburn Formation 69
Little Sole Formation 71
Lower Little Sole Formation 71
Upper Little Sole Formatton 71
St Erth Beds 71
10 Quaternary 73
Onshore occurrences ~4
The Quaternary succession on the upper slope "4
The Quaternary succession of the southern part oi
the Celtic Deep Basin 75
Hurd Deep 75
Melville Formation 76
Layer B 76
Layer A 76
Bedforms 79
Oceanography 80
Modern bedform distribution 81
11 Economic geology 82
Hydrocarbons 82
Carboniferous rocks 82
Jurassic and Cretaceous rocks 82
Minerals 82
Maerl 83
References 84
Index 91 |
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| indexdate | 2024-07-20T04:56:39Z |
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| isbn | 011884475X |
| language | English |
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| publishDate | 1990 |
| publishDateSearch | 1990 |
| publishDateSort | 1990 |
| publisher | HM Stationery Office |
| record_format | marc |
| series | United Kingdom offshore regional report |
| series2 | United Kingdom offshore regional report |
| spelling | The geology of the western English Channel and its western approaches C. D. R. Evans ... London HM Stationery Office 1990 VIII, 93 S. zahlr. Ill., Kt. txt rdacontent n rdamedia nc rdacarrier United Kingdom offshore regional report 9 Literaturverz.: S. 84 - 90 Geologie (DE-588)4020227-6 gnd rswk-swf Ärmelkanal (DE-588)4068438-6 gnd rswk-swf Ärmelkanal (DE-588)4068438-6 g Geologie (DE-588)4020227-6 s DE-604 Evans, C. D. R. Sonstige oth United Kingdom offshore regional report 9 (DE-604)BV010259306 9 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024628764&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | The geology of the western English Channel and its western approaches United Kingdom offshore regional report Geologie (DE-588)4020227-6 gnd |
| subject_GND | (DE-588)4020227-6 (DE-588)4068438-6 |
| title | The geology of the western English Channel and its western approaches |
| title_auth | The geology of the western English Channel and its western approaches |
| title_exact_search | The geology of the western English Channel and its western approaches |
| title_full | The geology of the western English Channel and its western approaches C. D. R. Evans ... |
| title_fullStr | The geology of the western English Channel and its western approaches C. D. R. Evans ... |
| title_full_unstemmed | The geology of the western English Channel and its western approaches C. D. R. Evans ... |
| title_short | The geology of the western English Channel and its western approaches |
| title_sort | the geology of the western english channel and its western approaches |
| topic | Geologie (DE-588)4020227-6 gnd |
| topic_facet | Geologie Ärmelkanal |
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