Petrology of Gravel Size Clasts from Miocene sediments collected at Site U1521 during International Ocean Discovery Programme (IODP) Expedition 374 to the Ross Sea, Antarctica

This dataset comprises continuous logging of clasts >2 mm from International Ocean Discovery Program Expedition 374 Site U1521 to the Ross Sea, collected on the RV JOIDES Resolution. Shipboard biostratigraphy and magnetostratigraphy suggests the sediments are early Miocene in age (McKay et al., 2019, Proceedings of the International Ocean Discovery Program). Logged clasts are grouped by core into seven main lithological groups: igneous rocks, quartz fragments, dolerites, volcanic rocks, metamorphic rocks, sedimentary rocks and sedimentary intraclasts. A full methods description is provided at the bottom of the data file. The clast abundances can be compared to knowledge of terrestrial geology, allowing the changing provenance of the sediments to be traced.

Date (Creation): 2021-05-19

Identifier: http://data.bgs.ac.uk/id/dataHolding/13607799

Originator

Imperial College London - James Marschalek ( Research Postgraduate )

Royal School of Mines, Prince Consort Road , London , SW7 2BP ,

Originator

University of Siena - Luca Zurli

Originator

University of Siena - Franco Talarico

Originator

University of Siena - Matteo Perotti

Distributor

British Geological Survey - Enquiries

United Kingdom

Point of contact

British Geological Survey - Enquiries

United Kingdom

Maintenance and update frequency: notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Provenance
Miocene
Petrology
Sedimentary history

dataCentre

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

Other constraints: restricted

Other constraints: The dataset has been formally approved by BGS for access by external clients under a BGS Digital Data Licence, issued via BGS's IPR Section. The dataset must not be provided to, or be accessible by, an external client until the IPR Section confirms that signed licence documentation is in place. Refer to the IPR Section (DigitalLE@bgs.ac.) if further advice is required.. Constraint applies until 2022-12-31

Use constraints: otherRestrictions Other restrictions

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: vector Vector

Metadata language: EnglishEnglish

Topic category

Geoscientific information

Geographic identifier

ROSS SEA [id=2001391]

Date (Revision): 2010

Begin date: 2018-10

End date: 2019-06

Unique resource identifier: WGS 84 (EPSG::4326)

Distribution format

Comma-separated values (CSV) ( witheld )

Distributor

British Geological Survey - Enquiries

United Kingdom

OnLine resource: Data ( WWW:DOWNLOAD-1.0-http--download )

OnLine resource: Citation Information - Digital Object Identifier (DOI) ( WWW:LINK-1.0-http--related )

Hierarchy level: dataset Dataset

Other: dataset

Conformance result

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Date (Publication): 2010-12-08

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

Pass: No

Statement: The gravel fraction (>2 mm) was characterized in continuum along the core, between 648.17 and 209.17 mbsf. Clasts exposed in the cut surface of the archive half core were measured, logged and described on the basis of macroscopic features (e.g. shape, colour, texture). Logging aimed to identify the distribution and variation of the gravel-size clasts along the core length. Clast logging followed the methodologies applied to the ANDRILL and CRP records; on the basis of macroscopic features, clasts were grouped into seven main lithological groups: igneous rocks, quartz fragments, dolerites, volcanic rocks, metamorphic rocks, sedimentary rocks and sedimentary intraclasts (Talarico and Sandroni, 1998; 2009; Talarico et al., 2000; Sandroni and Talarico, 2001). In addition, 73 pebble to cobble-sized clasts were sampled for petrographic analysis, of which the most representative of each lithological group were analysed using standard petrographic methods with polarized light microscopy.