Date ( Creation )

2018-08-08

Identifier

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

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Submarine fans , Zircon , Provenance , Radiometric dating

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

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

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Metadata language

English English

Topic category

• Geoscientific information

Geographic identifier

INDIAN OCEAN [id=2001427]

 

Date ( Revision )

2010

Distribution format

• MS Excel ()

OnLine resource

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

OnLine resource

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

Hierarchy level

dataset Dataset

Other

dataset

Statement

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.

gmd:MD_Metadata

File identifier

7315a8c4-deeb-4d62-e054-002128a47908   XML

Metadata language

English English

Hierarchy level

dataset Dataset

Date stamp

2021-07-23

Metadata standard version

2.3

Dataset URI

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