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This sampling and geophysical survey has been carried out by British Geological Survey (BGS) for BGS, the survey took place in September to November 1968 in the Sea of the Hebrides and the Minch on board the RRS John Murray. These purpose was to collect data to investigate the sub-surface geological structure and sea-bed geology additional geophysical observations were planned for the return passage to Plymouth including a detailed survey of a small area in the southern Irish Sea (see 1968/Passage survey for details). Sea floor data were collected using echo sounder. Sub-bottom profiling data were collected using sparker and sidescan sonar. Gravity meter and magnetometer data were collected. Sample data were collected using shipek grab, sediment dredge,rock dredge and scuba diving. These data are archived by BGS. Technical details of the survey are contained in BGS report WB/MG/68/28.
British Geological Survey (BGS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 573 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | British Geological Survey (BGS) Geophysical and Sampling Survey 1968/5: Sea of the Hebrides and The Minch (20/Sep/1968 to 03/Nov/1968) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | JM10/68 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | abc9f747-546c-0f38-e044-0003ba9b0d98 |
| Resource Identifier | This is the code assigned by the data owner. | BGS_CMD_REF9 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 1968-09-20 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1968-11-03 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 5 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | urn:ogc:def:uom:EPSG::9001 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This sampling and geophysical survey has been carried out by British Geological Survey (BGS) for BGS, the survey took place in September to November 1968 in the Sea of the Hebrides and the Minch on board the RRS John Murray. These purpose was to collect data to investigate the sub-surface geological structure and sea-bed geology additional geophysical observations were planned for the return passage to Plymouth including a detailed survey of a small area in the southern Irish Sea (see 1968/Passage survey for details). Sea floor data were collected using echo sounder. Sub-bottom profiling data were collected using sparker and sidescan sonar. Gravity meter and magnetometer data were collected. Sample data were collected using shipek grab, sediment dredge,rock dredge and scuba diving. These data are archived by BGS. Technical details of the survey are contained in BGS report WB/MG/68/28. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Geophysical equipment types used included: Echo Sounder, Gravimeter, Magnetometer, Pinger, Sidescan Sonar and Sparker. Sample equipment types used included: Corer: Sediment Gravity, Diver Collected, Dredge: Rock, Dredge: Sediment or Shell and Grab: Shipek. The survey was undertaken by British Geological Survey. For more detailed information on the acquisition equipment and data collection techniques, operational standards, data processing methods and quality control procedures used on this survey see the Report of Survey/Cruise Report and associated documentation where available. The information available may vary depending on the age of the survey. Data are checked and loaded to the BGS Coastal and Marine data management system following BGS marine data management procedures. Report: McQullian, R, Eden, RA, and Tully, MC. 1968. Geophysical and Geological Investigations in the Sea of the Hebrides and Minch. MGU Project 68/05. (IGS Report No 28). Positioning systems: Two Decca Mk 12 receivers one operated on Decca Chain 3B/MP and the other on Decca Chain 6C/MP. In general and particularly at night the 3B signal was more stable that the 6C signal. Niether was completely satisfactory and the positioning was suplemented by radar and visual sitings. The positions were logged manually every 10 minutes. Echo sounder system: Kelvin Hughes MS 38 Precision Depth Recorder. Sparker system: 3-candle sparker array unit with a EG&G 16-element hydrophone array type 263A. The sparker was run at 1000 Joules, a 1 second firing rate and a print sweep of 0.5 seconds. External and internal band-pass filters were applied usually in the 100-800kHz range. Pinger system: EG&G 5kHz pinger was used with a single element EG&G type 262 G hydrophone. Side-scan system: EG&G side-scan sonar. Optimum setting 500ft scan. Gravity meter: Askania Sea Grvaity Meter type Gss-2 No 11 Magnetometer: Varian proton magnetometer. Report: McQullian, R, Eden, RA, and Tully, MC. 1968. Geophysical and Geological Investigations in the Sea of the Hebrides and Minch. MGU Project 68/05. (IGS Report No 28) . |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | NDGO0001 |
| Keyword title | NERC OAI Harvesting | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geology |
| Keyword title | Geology | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | soil and sediment |
| Keyword title | soil and sediment | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | crust |
| Keyword title | crust | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Gravity |
| Keyword title | Gravity | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Lithology |
| Keyword title | Lithology | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Elevation |
| Keyword title | Bathymetry and Elevation | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Magnetics |
| Keyword title | Magnetics | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Two-dimensional seismic reflection |
| Keyword title | Two-dimensional seismic reflection | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Side-scan sonar |
| Keyword title | Side-scan sonar | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 58.4308 |
| East | The eastern-most limit of the data resource in decimal degrees | -5.1998 |
| South | The southern-most limit of the data resource in decimal degrees | 55.7658 |
| West | The western-most limit of the data resource in decimal degrees | -8.1029 |
| Regional sea | Malin | |
| Peach | ||
| Tiree | ||
| Argyll | ||
| Little Minch | ||
| Great Glen | ||
| Lewis | ||
| Sutherland | ||
| North Rockall Basin | ||
| Central Rockall Basin | ||
| Scottish Continental Shelf | ||
| Minches & Western Scotland | ||
| INNER SEAS OFF THE WEST COAST OF SCOTLAND | ||
| NORTHEAST ATLANTIC OCEAN (40W) | ||
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | British Geological Survey (BGS) | |
| Phone | +44 (0)131 667 1000 | |
| Fax | +44 (0)131 668 4140 | |
| Delivery point | The Lyell Centre, Research Avenue South | |
| Postal code | EH14 4AP | |
| City | Edinburgh | |
| Country | UK | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | British Geological Survey (BGS) | |
| Phone | +44 (0)131 667 1000 | |
| Fax | +44 (0)131 668 4140 | |
| Delivery point | The Lyell Centre, Research Avenue South | |
| Postal code | EH14 4AP | |
| City | Edinburgh | |
| Country | UK | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | British Geological Survey (BGS) | |
| Phone | +44 (0)131 667 1000 | |
| Fax | +44 (0)131 668 4140 | |
| Delivery point | The Lyell Centre, Research Avenue South | |
| Postal code | EH14 4AP | |
| City | Edinburgh | |
| Country | UK | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | British Geological Survey (BGS) | |
| Phone | +44 (0)131 667 1000 | |
| Fax | +44 (0)131 668 4140 | |
| Delivery point | The Lyell Centre, Research Avenue South | |
| Postal code | EH14 4AP | |
| City | Edinburgh | |
| Country | UK | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | http://mapapps2.bgs.ac.uk/geoindex_offshore/home.html?cruise=1968/5 |
| Locator name | Name of the web resource | BGS Offshore Geoindex |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | search |
| Legal limitations | Any restrictions imposed on accessing the resource. | unrestricted use, copyright acknowledgement - Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced BGS materials "Contains British Geological Survey materials ©NERC [year]" |
| Dataset constraints | ||
| Access constraints (code) | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
| Use constraints (code) | ISO restriction name chosen from ISO 19115-1 Codelist | otherRestrictions |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 1968-11-03 |
| Metadata date | The date when the content of this metadata record was last updated. | 2020-05-07 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.5 |
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