United Downs 1 borehole image interpretation
This dataset contains the borehole image interpretation of the United Downs 1 borehole, Cornwall (BGSID: 21246966) The acoustic borehole images have been interpreted for faults, breakouts and conductive and resistive fractures. For faults and fractures each line in the file defines a plane passing through the borehole. This includes: • Depth at which the plane intersects the borehole wall, this is defined as the midpoint of the feature as each plane has a top and bottom intersection. • Azimuth, this is the azimuth of the dip direction of the plane, it is at 90 degrees to the strike of the feature. • Dip, this is the dip angle of the plane. • Type, this is a classification of the feature. For breakouts each line represents an individual feature which covers and area of the borehole wall. This includes: • Depth the midpoint depth of the breakout. • Azimuth, this is the orientation of the breakout. • Type, this is a classification of the feature. • Breakout Height, the length of the breakout in meters. • Breakout Width, the width of the breakout in degrees. • Type, this is a classification of the feature. The work was undertaken by BGS as part of the GWatt Project award reference number NE/S004262/1. It was funded by the UKRI Natural Environment Research Council.
Default
Identification info
- Metadata Language
- English (en)
- Dataset Reference Date ()
- 2024-07-10
British Geological Survey
-
Enquiries
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
,
NOTTINGHAM
,
NOTTINGHAMSHIRE
,
NG12 5GG
,
United Kingdom
0115 936 3143
0115 936 3276
British Geological Survey
-
Enquiries
0115 936 3276
Environmental Science Centre, Nicker Hill, Keyworth
,
NOTTINGHAM
,
NOTTINGHAMSHIRE
,
NG12 5GG
,
United Kingdom
0115 936 3143
0115 936 3276
- Maintenance and update frequency
- notApplicable
- GEMET - INSPIRE themes, version 1.0
- BGS Thesaurus of Geosciences
-
- Fractured rock
- NGDC Deposited Data
- Borehole imaging
- Geothermal surveys
- Keywords ()
- Keywords
-
- NERC_DDC
- Limitations on Public Access
- otherRestrictions
- Other constraints
- licenceOGL
- Use constraints
- otherRestrictions
- Other constraints
- The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
- Other constraints
- Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
- Spatial representation type
- vector
- Topic category
-
- Geoscientific information
- Extent
-
Redruth [id=1395226]
- Dataset Reference Date ()
- 2002
N
S
E
W
![](https://data-search.nerc.ac.uk/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((-5.1635%2050.228,-5.1635%2050.228,-5.1635%2050.228,-5.1635%2050.228,-5.1635%2050.228)))
- Begin date
- 2019-10-15
- End date
- 2020-11-16
Distribution Information
- Data format
-
-
csv
()
-
rtf
()
-
csv
()
- Resource Locator
- Data
- Resource Locator
- Digital Object Identifier (DOI)
- Resource Locator
- Data
- Resource Locator
- Digital Object Identifier (DOI)
- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 2011
- Explanation
- See the referenced specification
- Degree
Report
- Dataset Reference Date ()
- 2010-12-08
- Explanation
- See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Degree
- Statement
- Features were interpreted on acoustic borehole images processed by BGS using the Schlumberger Techlog software. Acoustic borehole imaging is sensitive to changes in the borehole wall. The acoustic imaging tool emits P-Waves and records the amplitude and travel time of the reflected waves . Both the amplitude and travel time data can then be processed into false colour images to characterise the lithology, faults and fractures present at the borehole wall. This sensitivity to changes in the borehole wall means that where there is a significant increase in the borehole diameter (known as a washout) fewer, or no features can be interpreted from the imaging.
Metadata
- File identifier
- 1cd1d955-9bf7-74ed-e063-0937940a651f XML
- Metadata Language
- English (en)
- Resource type
- dataset
- Metadata Date
- 2024-09-05
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
British Geological Survey
Environmental Science Centre,Keyworth
,
NOTTINGHAM
,
NOTTINGHAMSHIRE
,
NG12 5GG
,
United Kingdom
+44 115 936 3100