Reference System

MD_ReferenceSystem:

referenceSystemIdentifier:

RS_Identifier:

code:

http://www.opengis.net/def/crs/EPSG/0/4326

code:

WGS 84 (EPSG::4326)

Identification

Data Identification:

citation:

Citation:

Title:

Physical Properties of Oceanic lower crustal and upper mantle rocks from Atlantis Massif (NERC grant NE/N012402/1)

Date:

CI_Date:

Date Type:

creation

date:

2015-10-24

Identifier:

RS_Identifier:

code:

http://data.bgs.ac.uk/id/dataHolding/13607160

Abstract:

Physical properties of four serpentinite and four gabbro samples acquired respectively at the Southern Wall (IODP leg 357) and at the Central Dome (IODP leg 304-305) of the Atlantis Massif have been measured and analysed in the frame of a NERC UK-IODP moratorium research. The physical property measurements included simultaneous ultra-sonic wave velocities (compressional and shear wave velocities), attenuation, electrical resistivity and permeability under increasing and decreasing effective pressure ranging between 5 and 45 Mpa. Measurements were carried out using the experimental physical property measurement rig of the rock Physics laboratory of the National Oceanography Centre, Southampton, UK. The porosity and the density of the samples were estimated using their wet dry weight difference and the volume of the samples, under atmospheric pressure and room temperature. The aim of this research project was to learn about the physical properties of oceanic lower crustal and upper-mantle rocks and to find a geophysical method that would allow to distinguish between these rocks, remotely. The dataset has been acquired and interpreted by a science party including researchers from the University of Southampton and the National Oceanography Centre. The ultrasonic wave velocities, attenuation and the electrical resistivity for each sample and for each effective pressure (increasing from 5 to 45 with an interval of 10 MPa and decreasing from 45 to 5 with an interval of 20 MPa) are reported in this dataset. Permeability measurements could have been carried out only on 6 samples for which the permeability was high enough to be measured with the experimental rig.

Point of Contact:

Responsible Party:

Individual Name:

Minshull, Professor T

Organisation Name:

University of Southampton

Position Name:

Shc of Ocean & Earth Science

Contact Info:

CI_Contact:

Address:

e-mail:

not available

role:

pointOfContact

Responsible Party:

Individual Name:

Dr Gaye Bayrakci

Organisation Name:

University of Southampton, National Oceanography Centre Southampton

Position Name:

Ocean and Earth Science

Contact Info:

CI_Contact:

Address:

Delivery Point:

National Oceanography Centre, Waterfront Campus, European Way

city:

Southampton

Postal Code:

SO14 3ZH

e-mail:

not available

role:

pointOfContact

Resource Maintenance:

MD_MaintenanceInformation:

maint. / update frequency:

notApplicable

Graphic overview:

Browse Graphic:

File Name:

https://resources.bgs.ac.uk/images/geonetworkThumbs/50594d6a-1a45-404b-e054-002128a47908.png

Descriptive Keywords:

Keywords:

keyword:

http://www.eionet.europa.eu/gemet/concept?cp=13&langcode=en&ns=5

keyword:

Geology

Thesaurus Name:

Citation:

Title:

GEMET - INSPIRE themes, version 1.0

Date:

CI_Date:

date:

2008-06-01

Date Type:

publication

Keywords:

keyword:

Geophysics

keyword:

Attenuation

keyword:

Gabbro

keyword:

Serpentinite

keyword:

Permeability

keyword:

Resistivity

keyword:

NGDC Deposited Data

keyword:

Oceanic crust

Thesaurus Name:

Citation:

Title:

BGS Thesaurus of Geosciences

Date:

CI_Date:

date:

2022

Date Type:

revision

Keywords:

keyword:

NGDC Deposited Data

keyword:

https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html

Type:

dataCentre

Keywords:

keyword:

NERC_DDC

Resource Constraints:

MD_LegalConstraints:

Access Constraints:

otherRestrictions

Other Constraints:

Data and terms of access and use available at https://doi.pangaea.de/10.1594/PANGAEA.873535

Other Constraints:

http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/INSPIRE_Directive_Article13_1d

MD_LegalConstraints:

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:

Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk) for advice, should the position not be clear.

Spatial Representation Type:

textTable

language:

eng

topicCategory:

geoscientificInformation

Extent:

Geographic Element:

Geographic Bounding Box:

westBoundLongitude:

-42.3300

eastBoundLongitude:

-41.8300

southBoundLatitude:

30.0000

northBoundLatitude:

30.3300

Temporal Element:

TemporalExtent:

extent:

begin / end:

begin:

2015-10-24

end:

2016-08-23

Supplemental Information:

NERC grant NE/N012402/1

Distribution

Distribution:

Distribution Format:

Format:

Format Name:

TAB

Transfer Options:

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://doi.pangaea.de/10.1594/PANGAEA.873535

function:

download

Data Quality

Data Quality:

Scope:

DQ_Scope:

level:

dataset

Level Description:

MD_ScopeDescription:

other:

dataset

Report:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date:

CI_Date:

Date Type:

publication

date:

2011

explanation:

See the referenced specification

pass:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date:

CI_Date:

Date Type:

publication

date:

2010-12-08

explanation:

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

pass:

Lineage:

LI_Lineage:

statement:

After the IODP leg 357 (March 2016 ), four serpentinite samples from this survey, and four gabbro samples from the previous IODP leg 304- 305 that studied the same region, were sent from Marum IODP core repository to the University of Southampton. The rock samples were 6 cm height working halves of cores with a diameter of 6 cm. They have been resampled as cylindrical mini-cores of diameter of 5 cm and a height of about 1.6 cm. The samples were first oven dried at 40°C for two days, then saturated with 35 g L-1 NaCl brine. Saturated and dry weights and the diameters and heights of the samples were measured tree times in order to estimate the porosity and the density of the samples. The samples have been then kept under vacuum in a pressure vessel of two days and the pore pressure were increased to 5 MPa. Pore pressure was kept constant for the measurements under increasing and decreasing effective pressures. The ultrasonic wave velocities and attenuations were measured using pulse-echo technique. The electrical resistivity is measured with an array of 16 electrodes. For permeability determination, for the most permeable samples we used the Steady State flow technique based on Darcy's law. For the less permeable samples the pressure transmission method has been used. For calibration purposes, both methods were used on one sample.

Metadata

File Identifier:

50594d6a-1a45-404b-e054-002128a47908

language:

eng

Resource type:

dataset

Metadata Contact:

Responsible Party:

Organisation Name:

British Geological Survey

Contact Info:

CI_Contact:

phone:

CI_Telephone:

voice:

+44 115 936 3100

Address:

Delivery Point:

Environmental Science Centre,Keyworth

city:

NOTTINGHAM

administrative Area:

NOTTINGHAMSHIRE

Postal Code:

NG12 5GG

country:

United Kingdom

e-mail:

enquiries@bgs.ac.uk

role:

pointOfContact

Date Stamp:

2024-04-24

Metadata Standard Name:

http://vocab.nerc.ac.uk/collection/M25/current/GEMINI/

Metadata Standard Name:

UK GEMINI

Metadata Standard Version:

2.3

Dataset URI:

http://data.bgs.ac.uk/id/dataHolding/13607160