Identification

Title

Provenance of Nicobar Fan sediments from IODP Expedition 362, offshore Sumatra (NERC grant NE/P016618/1)

Abstract

Detrital zircon age data, details of Expedition 362 samples . For more information see published report, https://doi.org/10.1016/j.epsl.2017.07.019 IODP Sites U1480–U1481, located on the Indian oceanic plate, east of the NinetyEast Ridge and west of the north Sumatran subduction margin Site U1480 ~ 3°2.0447'N 91°36.3481'E 4147.5 Site U1481 ~ 2°45.261'N 91°45.5771'E

Resource type

dataset

Resource locator

https://doi.org/10.1016/j.epsl.2017.07.019

function: information

http://www.bgs.ac.uk/services/ngdc/accessions/index.html#item112129

function: download

Unique resource identifier

code

http://data.bgs.ac.uk/id/dataHolding/13607363

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Provenance

Zircon

Submarine fans

Radiometric dating

originating controlled vocabulary

title

reference date

date type

revision

effective date

2011

Keyword set

keyword value

NERC_DDC

Geographic location

West bounding longitude

91.6000

East bounding longitude

91.7700

North bounding latitude

3.0300

South bounding latitude

2.7500

Extent

Extent group

authority code

title

reference date

date type

revision

effective date

2010

code identifying the extent

INDIAN OCEAN [id=2001427]

Temporal reference

Temporal extent

Begin position

2016-08-06

End position

2016-10-06

Dataset reference date

date type

creation

effective date

2018-08-08

Frequency of update

notApplicable

Quality and validity

Lineage

Detrital zircon age analysis for provenance of Nicobar Fan sands Samples were taken from sediment gravity flow deposits in cores of Sites U1480 and U1481. A concentrate of heavy minerals rich in zircon obtained using standard heavy liquid techniques was mounted in araldite and polished. Zircon grains were selected randomly and analysed by laser ablation inductively coupled plasma mass spectrometry in the London Geochronology Centre at University College London using a New Wave 193 nm aperture-imaged, frequency-quintupled laser ablation system coupled to an Agilent 7700 ICPMS. Typical ablation parameters were 20-35 µm, 10 Hz repetition rate and an energy fluence of ca. 2:5 J/cm2. Plesovice was used as an age standard (TIMS reference age 337.13±0.37 Ma) to correct for instrumental mass bias and depth-dependent inter-element fractionation of Pb, Th and U. Temora and 91500 zircon were used as secondary age standards. Data were processed using GLITTER 4.4 data reduction software. Calculated 206Pb/238U ages were used for grains younger than 1000 Ma, and the 207Pb/206Pb age for older grains. Grains with a complex growth history or disturbed isotopic ratios, with > +5/-15% discordance, were rejected.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2011

degree

false

explanation

See the referenced specification

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

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

Data format

name of format

MS Excel

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

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.

Responsible organisations

Responsible party

contact position

Department of Earth Sciences

organisation name

University College London

full postal address

Kathleen Lonsdale Building, 5 Gower Place

London

WC1E 6BS

email address

not available

responsible party role

pointOfContact

Responsible party

contact position

Department of Earth Sciences

organisation name

University College London

full postal address

Kathleen Lonsdale Building, 5 Gower Place

London

WC1E 6BS

email address

not available

responsible party role

principalInvestigator

Metadata on metadata

Metadata point of contact

organisation name

British Geological Survey

full postal address

Environmental Science Centre,Keyworth

NOTTINGHAM

NG12 5GG

United Kingdom

telephone number

+44 115 936 3100

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Metadata date

2023-03-22

Metadata language