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Metadata: 1991 Marine Biological Association (MBA) Witch Ground Basin RRS Challenger Cruise 82 sediment cores and gas sampling
Abstract:
The objectives of Leg 1 of this survey were: - To locate the source of hydrogen plumes in the Witch Ground Basin by taking water samples with the rosette sampler. - To take core samples from the 2 large pockmarks in UK Block 15/25 to obtain Astomonema and other samples needed to complete studies on these pockmarks. - To re-survey the extent of the shallow gas deposits mapped in 1990. Leg 2: - To map the distribution of shallow gas and gas seeps in the Skagerrak north of Hirtshals and to study the relationship of the seeps to bottom and sub-bottom topography. - To obtain sediment cores from methane-rich and methane-poor sediments in order to compare their biomass, species composition and geochemistry. - To collect fauna for stable isotope analysis, for biochemical studies and for electron microscopy. - To measure gas concentrations and bacterial activity in the sediments and in the water collumn.
Data holder:
Data Archive for Seabed Species and Habitats (DASSH)
Use constraints:
Open Government License (OGL)- no restriction to public access
| Other details | ||
| Internal code | Internally assigned metadata identifier | 3766 |
| 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. | 1991 Marine Biological Association (MBA) Witch Ground Basin RRS Challenger Cruise 82 sediment cores and gas sampling |
| 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. | fafe6be12e831f965fbc3f43ab1adbd7 |
| Resource Identifier | This is the code assigned by the data owner. | DASSHDT00000316 |
| 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 | 1991-07-12 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1991-07-28 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| 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. | The objectives of Leg 1 of this survey were: - To locate the source of hydrogen plumes in the Witch Ground Basin by taking water samples with the rosette sampler. - To take core samples from the 2 large pockmarks in UK Block 15/25 to obtain Astomonema and other samples needed to complete studies on these pockmarks. - To re-survey the extent of the shallow gas deposits mapped in 1990. Leg 2: - To map the distribution of shallow gas and gas seeps in the Skagerrak north of Hirtshals and to study the relationship of the seeps to bottom and sub-bottom topography. - To obtain sediment cores from methane-rich and methane-poor sediments in order to compare their biomass, species composition and geochemistry. - To collect fauna for stable isotope analysis, for biochemical studies and for electron microscopy. - To measure gas concentrations and bacterial activity in the sediments and in the water collumn. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This survey was conducted over two legs. The first leg was conducted from 12-18th July 1991 and the second from 19-31 July 1991. Experts from multiple disciplines carried out the work and analysed the data. Details of the participants of each leg can be found in the report, as can detailed notes of the cruise. Core data only (no information on gas type data). If any sensitive species or biotope records are present within this dataset, they will have been removed. If you wish to request access to sensitive species records, please contact the metadata contact. The UK Sensitive Species list has been agreed by UK statutory bodies and relevant experts. It can be viewed here https://docs.nbnatlas.org/sensitive-species-list/. Please note sensitive species lists can vary across the UK. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | NDGO0005 | |
| Keyword title | data.gov.uk | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geology |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zoobenthos generic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bacteria environmental parameters | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bacteria taxonomic abundance in sediment | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bacteria generic abundance in sediment | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved concentration parameters for other gases in sediment pore waters | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved concentration parameters for other gases in the water column | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 59 |
| East | The eastern-most limit of the data resource in decimal degrees | 11 |
| South | The southern-most limit of the data resource in decimal degrees | 57 |
| Regional sea | Northern North Sea | |
| 42F0 | ||
| 44F0 | ||
| 42F1 | ||
| 44F1 | ||
| 45F1 | ||
| 42F2 | ||
| 44F2 | ||
| 45F2 | ||
| soil and sediment | ||
| soil and sediment boundary layer | ||
| water column | ||
| 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 | Data Archive for Seabed Species and Habitats (DASSH) | |
| Position name | Data Manager | |
| Phone | 01752 633102 | |
| Fax | 01752 633291 | |
| Delivery point | Marine Biological Association of the UK, The Laboratory, Citadel Hill | |
| Postal code | PL1 2PB | |
| City | Plymouth | |
| dassh.enquiries@mba.ac.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Data Archive for Seabed Species and Habitats (DASSH) | |
| Position name | Data Manager | |
| Phone | 01752 633102 | |
| Fax | 01752 633291 | |
| Delivery point | Marine Biological Association of the UK, The Laboratory, Citadel Hill | |
| Postal code | PL1 2PB | |
| City | Plymouth | |
| dassh.enquiries@mba.ac.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Marine Biological Association of the UK (MBA) | |
| Position name | Data Manager | |
| Delivery point | Citadel Hill | |
| Postal code | PL1 2PB | |
| City | Plymouth | |
| dassh.enquiries@mba.ac.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 | Data Archive for Seabed Species and Habitats (DASSH) | |
| Position name | Data Manager | |
| Phone | 01752 633102 | |
| Fax | 01752 633291 | |
| Delivery point | Marine Biological Association of the UK, The Laboratory, Citadel Hill | |
| Postal code | PL1 2PB | |
| City | Plymouth | |
| dassh.enquiries@mba.ac.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://doi.org/10.17031/1804 |
| Locator name | Name of the web resource | DOI link |
| Locator URL | Web address (URL) that links to the resource | http://www.dassh.ac.uk |
| Locator name | Name of the web resource | DASSH homepage |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | otherRestrictions | |
| 20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | Open Government License (OGL)- no restriction to public access |
| 21 Conditions for Access and Use - Use limitation | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Open Government License (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) |
| 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. | 2021-12-23 |
| Date of last revision | The most recent date that the resource was revised. | 2021-12-23 |
| Date of creation | The date that the resource was created. | 1991-07-28 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2021-12-23 |
| 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 | 2.3.8 |