Kym E. Jarvis

Imperial College London

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Ian Jarvis

Kingston University

John G. Williams

Louisiana State Department of Health and Hospitals

Kathryn L. Linge

Curtin University

Lauro Valentim Stoll Nardi

Universidade Federal do Rio Grande do Sul

Sturt W. Manning

Cornell University

Rafael Kandiyoti

Imperial College London

H. Lachas

University of Liverpool

Paul R.D. Mason

Utrecht University

R. Richaud

Imperial College London

Charlotte Pearson

University of Arizona

Cooperative Institutions

Imperial College London

Universidade Federal do Rio Grande do Sul

Instituto de Geociencias

University of London

Birkbeck, University of London

Kingston University

University College London

University of Leeds

University of East Anglia

Royal Holloway University of London

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Assessing element variability in small soil samples taken during forensic investigation

Geological Society London Special Publications (2004)

Kym E. Jarvis Hugh Wilson Sarah L. James

Abstract Inductively coupled plasma analytical techniques are widely used in forensic geochemistry because they can provide concentration data for a wide range of major and trace elements relatively rapidly and at reasonable cost. A pilot study was undertaken to identify the relative importance of uncertainty resulting from instrumental measurement sources and that due to the procedures used to prepare the samples initially. Three soils with a range of major and trace element concentrations were collected to permit an evaluation of uncertainty. A reference sample of demonstrated homogeneity was also prepared and analysed. Samples were prepared in replicate (five preparations) of each, and assessment made of uncertainty in the instrumental measurement alone and for replicated preparations of the same material. Small sample sizes (0.05g) were used to mimic the situation common in forensic investigation. Results show that, while instrumental variability may be an important factor during measurement, between-sample variation has a dominant effect on uncertainty in the final result. It is clear that, without replicated measurement and preparation, the uncertainty of the measured data is unknown. Thus, critical samples, on which a case might depend, must be analysed in a way that defines clearly that uncertainty.

10.1144/gsl.sp.2004.232.01.16

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Citations (26)

Heavily-contaminated snowfalls in the remote Scottish Highlands: A consequence of regional-scale mixing and transport

Atmospheric Environment Part A General Topics (1992)

T.D. Davies Martyn Tranter T. Jickells P.W. Abrahams S. Landsberger

Deposition

Anticyclone

Sea spray

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10.1016/0960-1686(92)90263-k

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Citations (24)

Inductively coupled plasma-atomic emission spectrometry in exploration geochemistry

Journal of Geochemical Exploration (1992)

Ian Jarvis Kym E. Jarvis

Atomic emission spectroscopy

TRACE (psycholinguistics)

Analytical procedures

10.1016/0375-6742(92)90050-i

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Citations (64)

The petrogenesis and geochemistry of the dioritic complexes south of Balmoral forest, Angus

Kym E. Jarvis

The Glen Doll and Juan Jorge Complexes are two contrasting late Caledonian calc-alkaline plutons intruded into Middle Dalradian metasediments at the northern end of Glen Clova, in the Angus district of Tayside, Scotland. The Glen Doll Complex (12 km squared) constitutes a wide range of rock types from olivine gabbro, through diorite to adamellite. The bulk (> 80%) of the succession consists of heterogeneous hornblende- and pyroxene-bearing diorites. Partially assimilated rafted metasedimentary xenoliths, are common in the intermediate rock types. The basic rocks are cumulates which display wall-parallel layering. Mineralogical variation displays a transition from pyroxene-dominated anhydrous assemblages to amphibole-dominated assemblages. The diorites by contrast display floor-parallel layering and typically contain cumulate magnetite and ilmenite. Petrographic and mineralogical data suggests that fractionation played an important role in the evolution of the cumulate rocks.

Diorite

Petrogenesis

Pyroxene

Hornblende

Dalradian

Amphibole

Hornfels

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Citations (2)

REE, Y, Nb, U, and Th contents and tetrad effect in zircon from a magmatic-hydrothermal F-rich system of Sn-rare metal–cryolite mineralized granites from the Pitinga Mine, Amazonia, Brazil

Journal of South American Earth Sciences (2011)