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Laser ablation trace element analyses of rutile and apatite grains from the Zambian Copperbelt

Laser ablation trace element data for rutile and apatite were recovered from Mindola and Nchanga. At Mindola the Kitwe Formation is the major host to Cu-Co (copper-cobalt) mineralisation at Nkana-Mindola, particularly within the Ore Shale member. The Ore Shale has been subdivided into multiple units based on texture and composition. In summary, a black shale or dolomitic siltstone. often with a schistose or banded texture, passes upwards into a coarser porous sandstone or siliceous dolomite and capped by a massive argillite. Mineralisation across Nkana-Mindola is primarily hosted by dolomitic siltstones, pyritic black shales and schists. At Nchanga samples were analysed from the upper and lower ore bodies hosted within the Lower Roan metasediments which unconformably overlie the basement, transitioning from basal continental, arenaceous clastic rocks to shallow marine argillaceous clastic rocks and mixed platform carbonates. Context of samples and methods described in; Chapters 4 and 5 Kelly, Jamie (2024) Dataset for thesis "Constraining Cu-(Co) mineralisation in sediment-hosted copper deposits using rutile, apatite, and carbonate geochronology". University of Southampton doi:10.5258/SOTON/D3219 [Dataset]

Simple

Date (Creation)
2025-09-15
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608534
Originator
  University of Southampton - Professor Stephen Roberts ( Ocean and Earth Science )
National Oceanography Centre, Waterfront Campus, European Way , Southampton , SO14 3ZH ,
Distributor
  British Geological Survey - Enquiries
Point of contact
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes, version 1.0
  • Geology
BGS Thesaurus of Geosciences
  • Lasers
  • NGDC Deposited Data
  • Trace elements
  • Copper deposits
  • Rutile
dataCentre
  • NGDC Deposited Data
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
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
EnglishEnglish
Topic category
  • Geoscientific information
Begin date
2020-09-01
End date
2025-09-01

Reference System Information

No information provided.
Distribution format
  • Excel Spreadsheet (.xlsx) ()

Distributor
  British Geological Survey - Enquiries
OnLine resource
Data
Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic 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
Trace element geochemistry was determined using quadrupole LA-ICP-MS using a Teledyne Iridia 193 nm laser connected to an Agilent 8900 ICP-MS QQQ mass spectrometer at the NHM, London. A suite of 40 elements were acquired for rutile and 47 elements for apatite. Rutile and apatite grains were located using TESCAN TIMA maps imported into the Chromium 3.1 software. Ablation was performed using a fluence of 3.5 J/cm2 repetition rate of 5 Hz. Background signal was measured for 30s followed by 30s of acquisition time. A 20 µm spot size was used for rutile and 25 µm for apatite dictated by the grain sizes in the samples. Stoichiometric values for Ti47 (59.95 wt.%) and Ca43 (38.5 wt.%) were used as internal standards for rutile and apatite, respectively. Mass spectrometer calibration was conducted using the NIST610 glass standard for rutile and NIST612 for apatite (Jochum et al., 2011). Reference materials BCR-2G and GSD-1G were analysed as secondary standards to evaluate the reproducibility of the data. Literature values used for each glass standard were downloaded from the GEOREM database (Jochum et al., 2011). Rutile mineral references materials R10b, R13 (Luvizotto et al., 2009a) and R632 (Axelsson et al., 2018) and the Durango apatite standard (Chew et al., 2016) were run as unknowns to monitor accuracy and precision. Standard-sample bracketing using these reference materials was performed after ~10 unknown analyses. Data processing and reduction was performed using an offline Microsoft Excel VBA spreadsheet. Signals containing mineral inclusions, notable contamination or low signal-noise ratio were omitted from the final spreadsheet.
File identifier
3f290c61-74aa-421a-e063-3050940ab292 XML
Metadata language
EnglishEnglish
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2025-11-13
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13608534
 
 

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