2002 Strategic Environmental Assessment SEA3 Technical report - Geology, North Sea (Addendum to SEA2 report)
This report is a contribution to the Strategic Environmental Assessment (SEA3) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change) and is an addendum to "SEA2 Technical report 008 - North Sea Geology, covering subsurface geology, sea-bed sediments, sediment mobility and seismicity." by same authors. The geology of the North Sea from the Palaeozoic era to the present day is reviewed, with reference to petroleum geology. Geological factors affect the environmental consequences of oil and gas exploitation in many different ways. For example, in the case of the Ekofisk oilfield in the Norwegian sector of the North Sea, oil production led to seafloor subsidence of a few metres due to its chalk reservoir, but production-related subsidence on this scale is atypical. The evolution of the geomorphology and composition of the shallow and seabed sediments is discussed. The distribution of mud, sand, gravel and hard substrates influence the nature of the benthos and can affect the way in which contaminants are accumulated and transported. Shallow seabed sediments support the foundations of structures ranging from platforms to pipelines. Hydrogeological conditions and the risk of pollution to aquifers are also reviewed.
dataset
http://www.bgs.ac.uk/data/sea/home.html
name: Strategic Environmental Assessment (SEA) data portal
description: The Strategic Environmental Assessment (SEA) data portal provides free access to available data and reports which have been produced through the UK Department of Energy and Climate Change SEA process. The site is run and managed by BGS on behalf of the Department of Energy and Climate Change (DECC). Many files can be downloaded directly from this website. Those that are too large to download can be ordered via the website for postal delivery from BGS.
function: download
BGS_SEA_34
British Geological Survey
eng
OGP
urn:ogc:def:crs:EPSG::4326
http://www.offshore-sea.org.uk/site/index.php
environment
geoscientificInformation
oceans
revision
2011-03-25
Geology
publication
2008-06-01
publication
2008-06-01
-1.9
3.3
61.8
52.8
revision
2006-01-01
2002-01-01
2002-01-01
publication
2002-08-01
notPlanned
Report produced by British Geological Survey, August 2002 as part of the UK Department of Energy and Climate Change's Offshore Energy Strategic Environmental Assessment programme. This review presents a summary of published data and their interpretation from areas in the mature oil and gas areas of the UK North Sea.
The SEAs data were produced as part of the UK Department of Energy and Climate Change's Offshore Energy Strategic Environmental Assessment programme; Crown Copyright, all rights reserved. The DECC SEA must be acknowledged in any maps or publications that make use of the data. All the data files are freely available to the public. The Strategic Environmental Assessment (SEA) data portal provides free access to available data and reports which have been produced through the SEA process. The site is run and managed by BGS on behalf of the Department of Energy and Climate Change (DECC). Many files can be downloaded directly from this website. Those that are too large to download can be ordered via the website for postal delivery from BGS. BGS (NERC) has been contracted by DECC to publish SEA datasets on its behalf. All intellectual property rights (including , without limitation, copyrights, database rights and all other rights which subsist or may at any time in the future subsist in the Dataset(s)) in the Dataset(s) ('Intellectual Property Rights') are owned by DECC (formerly the Department of Trade and Industry, and the Department for Business, Enterprise and Regulatory Reform). BGS has been authorised by DECC to use SEA datasets for all purposes but on a 'not-for-profit basis'. BGS has been authorised by DECC to pass on SEA datasets to third parties so that they can use them for all purposes but on a 'not-for-profit' basis.
British Geological Survey (BGS)
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custodian
Department for Energy and Climate Change (DECC)
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originator
British Geological Survey (BGS)
+44 (0)131 667 1000
+44 (0)131 668 4140
pointOfContact
2011-08-30