GeoIndex help | Borehole map theme


View the boreholes map theme

Click on the links below for further information about the available datasets.

Overview

The Mining Industry Act 1926 and Water Resources Act 1991 require organisations to notify the BGS prior to commencing drilling certain holes for water or minerals. Please contact the Records Officer R. Bowie phone 01159363106 and email ngrc@bgs.ac.uk to notify any borehole operations. If you wish to voluntarily notify us of drilling or have data not covered by the Acts that you wish to donate, then the Records Officer will happy to discuss this with you. If you wish to send data or discuss collection of data, then please contact the Data Collection Officer Sue Roper, phone 01159363127.

Onshore borehole records

Records of boreholes, shafts and wells from all forms of drilling and site investigation work. Some 850 000 records dating back over 200 years and ranging from one to several thousand metres deep. Currently some 50 000 new records are being added to the collection each year. These will be included in GeoIndex each time it is updated.

A small percentage of the borehole records are held 'commercial-in-confidence' for various reasons, and cannot be released without the written permission of the originator. NGRC staff will release the data where this is possible or provide you with the information needed to contact the originator.

Please note that zero values for depth signify that the depth has not been databased or has not been made available.

There is a standard charge of £15 + VAT per borehole record with £30 + VAT minimum charge.

Opencast Coal prospecting areas

The index includes outlines for some 8 000 opencast coal prospecting sites dating from the 1940s to date. The index leads to information on the records of some 1 million boreholes (additional to those shown in the Borehole Records layer) drilled during site exploration and also the accompanying plans and other data, all filed in 3 618 boxes. The sites include those that have been drilled and not worked and also those that have been exploited. Quote the site reference number and details of the information available can be purchased upon further enquiry to ngrc@bgs.ac.uk. It is hoped that in the near future more detailed information about the holdings can be supplied on-line.

Water wells

100 000 paper records of water wells, including details of lithologies, well construction, water levels and yields and water chemistry. Details lodged by drillers under statute. Water well records cost £15 per well (+VAT) with a minimum charge of £30.

Please note that zero values for the depth represent those for which the depth has yet to be entered into the database from the paper records. The columns of information called GEOLOGY, CONSTRUCT, CHEMICAL and HYDROGEOL represent the availability of geological records, construction details, water quality data and hydrogeological data (sold separate to the rest water level and aquifer properties data) respectively. They have an 'unknown' value where the paper records have yet to be checked for their content.

Site investigation reports

17000 reports covering England and Wales only, but Scottish data soon to arrive. Additional laboratory and test data may be available in these reports, subject to any copyright and confidentiality conditions. The area covered by a report is based on an un-refined rectangle and therefore may not be applicable to all parts of a specific site. Boreholes in these reports will be individually sited and their records databased within the borehole records collection, described in the section above.

Onshore drillcore

Collection of drillcore, bulk specimens, unwashed cuttings and processed material from onshore boreholes drilled in UK by BGS, commercial and public bodies.

Enquiries are normally free, but a charge may be levied depending upon the time taken; users will be notified in advance. Material is available for inspection and sampling on application by e-mail; It is free for academic research but is charged for commercial work at £50 per day.

There is also a registered borehole core specimen collection taken from onshore boreholes drilled in England and Wales by the BGS and commercial and public bodies.

Onshore borehole samples

This is the collection of registered samples of drillcore and washed cuttings from onshore boreholes drilled in UK by BGS, commercial and public bodies, representing almost 10 000 boreholes. There is also a drillcore collection taken from onshore boreholes drilled in England and Wales by the BGS and commercial and public bodies.

Enquiries are normally free, but a charge may be levied depending upon the time taken; users will be notified in advance. Material is available for inspection and sampling on application by e-mail; it is free for academic research but is charged for commercial work at £50 per day bench fee, plus sample retrieval and cutting charges.

Hydrocarbon well locations (UK onshore)

Exploration for hydrocarbons by drilling began in the 19th century and locations were recorded in latitude/longitude until about 1960. These locations have been converted to national grid. The majority of the wells have formed part of basin studies by BGS and are therefore reliably located. There may be some discrepancies in location data between various databases, originating from project modifications and which original source was preferred.

Please contact us if you have problems, or you have definitive different locations of the wells in this database.

Boreholes with geophysical logs

These are measurements of the properties of rocks by instruments lowered down a borehole. This data-set shows those onshore and offshore UK boreholes that have digital geophysical borehole logs. There is also a large collection of geophysical borehole logs in paper format.

Prices are available on further enquiry.

Water wells with water level measurements

This shows sites where regularly monitored rest water level data are available, usually covering a long time period. The data shows seasonal fluctuations in the water table and responses to periods of high or low rainfall. Retrieval costs are £7.50 per value with a minimum charge of £30 for 4 values.

Water wells with aquifer property measurements

This shows sites with data available on transmissivity, storativity and discharge/drawdown. These parameters indicate the physical characteristics of the aquifer which can relate to factors such as possible storage capacities or rate of movement of water through the rock. Charges are £7.50 per site with a minimum charge of £30 for 4 sites.

Geochemistry

This dataset comprises 17 500 borehole rock samples (drillcore) from the MRP and related studies.

Further information on licensing data is available.

Superficial deposits 1:625 000 scale

The 'Superficial deposits' shown on the GeoIndex map includes the youngest geological deposits laid down in England and Wales, Scotland and part of Northern Ireland. This map is based on the first edition Drift 1:625 000 scale Geological Map of the United Kingdom published in 1977 as two sheets, North and South, available from the BGS Internet Shop.

The Superficial deposits, mainly formed in the Quaternary period of geological time, which extends from the present back to 2 million years ago. Many of the deposits were formed during episodes of glaciation ,or deposited by rivers. They occur as discontinuous patches and larger spreads and rest on top of the older rocks (referred to in the bedrock).

Most of these superficial deposits are unconsolidated sediments such as gravel, sand, silt and clay. The name of each deposit or group of deposits corresponds to that shown on the published 1:625 000 map e.g. River Terrace Deposits.

CAUTION

The source geological maps originally used to compile the published 1:625 000 maps are 1:50 000 and 1:63 360 (one inch to one mile) scale maps published before 1977. Many of these have since been up-dated and may therefore not now agree with the 1:625000 geology shown here.

Because of the generalisation and simplification used in the compilation of this map, it should not be used to determine the detailed geology of any specific sites. It is best used to provide a basic understanding of the geology of the country in general, and for showing the geology of large regions where broad trends are more important than specific details.

Persons interested in the detailed geology of particular sites should consult the latest large scale maps or the British Geological Survey at:-

British Geological Survey,
Environmental Science Centre,
Keyworth,
Nottingham NG12 5GG.
Tel: +44 (0)115 936 3143
Fax: +44 (0)115 936 3276

Faults 1:625 000 scale

Digital geological dataset depicting the faults only of the bedrock geology of the United Kingdom at surface/rock head.

CAUTION

The source geological maps originally used to compile the published 1:625 000 maps are 1:50 000 and 1:63 360 (one inch to one mile) scale maps published before 1979. Many of these have since been up-dated and may therefore not now agree with the 1:625 000 geology shown here.

Because of the generalisation and simplification used in the compilation of this map, it should not be used to determine the detailed geology of any specific sites. It is best used to provide a basic understanding of the geology of the country in general, and for showing the geology of large regions where broad trends are more important than specific details.

Persons interested in the detailed geology of particular sites should consult the latest large scale maps or the British Geological Survey at:-

British Geological Survey,
Environmental Science Centre,
Keyworth,
Nottingham NG12 5GG.
Tel: +44 (0)115 936 3143
Fax: +44 (0)115 936 3276

Dykes 1:625 000 scale

Digital geological dataset depicting the dykes only of the bedrock geology of the United Kingdom at surface/rock head.

CAUTION

The source geological maps originally used to compile the published 1:625 000 maps are 1:50 000 and 1:63 360 (one inch to one mile) scale maps published before 1979. Many of these have since been up-dated and may therefore not now agree with the 1:625 000 geology shown here.

Because of the generalisation and simplification used in the compilation of this map, it should not be used to determine the detailed geology of any specific sites. It is best used to provide a basic understanding of the geology of the country in general, and for showing the geology of large regions where broad trends are more important than specific details.

Persons interested in the detailed geology of particular sites should consult the latest large scale maps or the British Geological Survey at:-

British Geological Survey,
Environmental Science Centre,
Keyworth,
Nottingham NG12 5GG.
Tel: +44 (0)115 936 3143
Fax: +44 (0)115 936 3276

Bedrock 1:625 000 scale

The 'bedrock' shown on the GeoIndex map comprises the bedrock geology, which represents the outcrops (at surface) and subcrops (at near-surface, beneath superficial deposits) in England and Wales, Scotland and part of Northern Ireland. It is based on the third edition Solid 1:625 000 scale Geological Map of the United Kingdom published in 1979 as two sheets, North and South. These sheets are available from the BGS Internet Shop.

CAUTION

The source geological maps originally used to compile the published 1:625 000 maps are 1:50 000 and 1:63 360 (one inch to one mile) scale maps published before 1979. Many of these have since been up-dated and may therefore not now agree with the 1:625 000 geology shown here.

Because of the generalisation and simplification used in the compilation of this map, it should not be used to determine the detailed geology of any specific sites. It is best used to provide a basic understanding of the geology of the country in general, and for showing the geology of large regions where broad trends are more important than specific details.

Persons interested in the detailed geology of particular sites should consult the latest large scale maps or the British Geological Survey at:-

British Geological Survey,
Environmental Science Centre,
Keyworth,
Nottingham NG12 5GG.
Tel: +44 (0)115 936 3143
Fax: +44 (0)115 936 3276