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dc.contributor.author Westgate, John A.
dc.contributor.author Denton, Joanna S.
dc.contributor.author Perkins, William T.
dc.contributor.author Pearce, Nicholas J. G.
dc.date.accessioned 2008-12-17T16:24:46Z
dc.date.available 2008-12-17T16:24:46Z
dc.date.issued 2007
dc.identifier.citation Westgate , J A , Denton , J S , Perkins , W T & Pearce , N J G 2007 , ' Correlation and characterisation of individual glass shards from tephra deposits using trace element laser ablation ICP-MS analyses: current status and future potential ' Journal of Quaternary Science , vol 22 , no. 7 , pp. 721-736 . , 10.1002/jqs.1092 en
dc.identifier.issn 0267-8179
dc.identifier.other PURE: 95293
dc.identifier.other dspace: 2160/1755
dc.identifier.uri http://hdl.handle.net/2160/1755
dc.identifier.uri http://www3.interscience.wiley.com/cgi-bin/lnx?FROM=REF&TYPE=JCIT&TTL=Journal+of+Quaternary+Science&VID=&ISSN=&PPF=&SNM=Pearce&ATL=Correlation+and+characterisation+of+individual+glass+shards+from+tephra+deposits+using+trace+element+laser+ablation+ICP%2DMS en
dc.description Pearce, Nicholas, Denton, J.S., Perkins, W.T., Westgate, J.A., (2007) 'Correlation and characterisation of individual glass shards from tephra deposits using trace element laser ablation ICP-MS analyses: current status and future potential', Journal of Quaternary Science 22(7) pp.721-736 RAE2008 en
dc.description.abstract Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is a high spatial resolution analytical method which has been applied to the analysis of silicic tephras. With current instrumentation, around 30 trace elements can be determined from single glass shards as small as 40 µm, separated from tephra deposits. As a result of element fractionation during the ablation process using a 266 nm laser, a relatively complex calibration strategy is required. Nonetheless, such a strategy gives analyses which are accurate (typically within ±5%) and have an analytical precision which varies from ±2% at 100 ppm, to ±15% at 1 ppm. Detection limits for elements used in correlation and discrimination studies are well below 1 ppm. Examples of the application of trace element analysis by LA-ICP-MS in tephra studies are presented from the USA, New Zealand and the Mediterranean. Improvements in instrumental sensitivity in recent years have the potential to lower detection limits and improve analytical precision, thus allowing the analysis of smaller glass shards from more distal tephras. Laser systems operating at shorter wavelengths (e.g. 193 nm) are now more widely available, and produce a much more controllable ablation in glasses than 266 nm lasers. Crater sizes of en
dc.format.extent 16 en
dc.language.iso eng
dc.relation.ispartof Journal of Quaternary Science en
dc.title Correlation and characterisation of individual glass shards from tephra deposits using trace element laser ablation ICP-MS analyses: current status and future potential en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1002/jqs.1092
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Quaternary Environmental Change Group en
dc.description.status Peer reviewed en


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