Geoff Nowell
Durham University
GeologyIsotopeArchaeologyGeochemistryMantle (geology)
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Publications 128
#1A Burton-Johnson (BAS: British Antarctic Survey)H-Index: 4
#2Colin G. Macpherson (Durham University)H-Index: 30
Last. Geoff Nowell (Durham University)H-Index: 37
view all 6 authors...
Abstract New field, geochemical, and geochronological data from the Segama Valley Felsic Intrusions (SVFI) of Sabah, north Borneo, shows them to be arc-derived tonalites; not windows or partial melts of a crystalline basement beneath Sabah. U Pb zircon ages date emplacement in the Triassic and Jurassic: 241.1 ± 2.0 Ma, 250.7 ± 1.9 Ma, 178.7 ± 2.4 Ma, and 178.6 ± 1.3 Ma; contemporaneous with peaks in magmatism and detrital zircons in Sarawak and west Kalimantan (west Borneo). Isotopic data for Sr...
#1Tori Duxfield (University of Otago)
#2Charlotte L. King (University of Otago)H-Index: 7
Last. Rebecca L. Kinaston (University of Otago)H-Index: 12
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Abstract The application of strontium isotopes to migration studies is well-documented and has been successful around the world. The main constraint of this is the need for geological and bioavailable baseline data from the region of interest. In New Zealand, human migration has played a major role during pre-European and post-European colonisation. Currently New Zealand does not have comprehensive strontium isotope baseline data, therefore isotopic interpretation of migration has been limited. ...
#1Charlotte L. King (University of Otago)H-Index: 7
#2Hallie R. Buckley (University of Otago)H-Index: 25
Last. Darren R. Gröcke (Durham University)H-Index: 36
view all 10 authors...
OBJECTIVES: Colonial period New Zealand was lauded as a land of plenty, where colonists could improve their station in life and secure a future for their families. Our understanding of colonial experience, however, is often shaped by historical records which communicate a state-sponsored version of history. This study aims to reconstruct the lives of settlers using isotopic evidence from the colonial skeletons themselves. MATERIALS AND METHODS: We use skeletal remains from recently excavated col...
#1Tamar Hodos (UoB: University of Bristol)H-Index: 8
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Decorated ostrich eggs were traded around the Mediterranean during the Bronze and Iron Ages. Research on their origins has focused primarily on decorative techniques and iconography to characterise the producers, workshops and trade routes, thereby equating decorative styles with cultural identities and geographic locations. This is problematic, as craftspeople were mobile and worked in the service of foreign royal patrons. The present study investigates the provenance of ancient ostrich eggs, r...
#1Charlotte L. King (University of Otago)H-Index: 7
#2Peter PetcheyH-Index: 4
Last. Geoff Nowell (Durham University)H-Index: 37
view all 6 authors...
Abstract Lead isotopes can be used to identify migrants in archaeological sites, and are particularly useful when individuals may have migrated from areas of high anthropogenic or environmental lead into lower-lead concentration environments. For this reason they are ideal for identifying first European settlers (coming from a UK Industrial Revolution context) to colonies such as New Zealand. In this study, however, we highlight how ornate Victorian burial practices may introduce lead into the b...
#1Magnus KirbyH-Index: 1
#2Sue AndersonH-Index: 1
Last. Jane EvansH-Index: 39
view all 24 authors...
#1Alex J. McCoy-West (Monash University, Clayton campus)H-Index: 8
#2Marc-Alban Millet (Cardiff University)H-Index: 18
Last. Kevin W. Burton (Durham University)H-Index: 46
view all 5 authors...
Neodymium (Nd) stable isotopes have the potential to provide new constraints on a diverse range of geological processes from planetary formation and magmatic differentiation to weathering and ocean circulation. In this contribution, we present a technique for the high-precision measurement of Nd stable isotope ratios by thermal ionisation mass spectrometry (TIMS). We use a 145Nd–150Nd double spike (DS), composed of 28% 145Nd and 67% 150Nd, to correct for mass dependent fractionation resulting fr...
1 CitationsSource
#1Joanna Moore (Durham University)H-Index: 2
#2Alice Rose (University of Cambridge)H-Index: 1
Last. Janet Montgomery (Durham University)H-Index: 31
view all 9 authors...
Abstract Recent excavations at Musselburgh, East Lothian (Scotland) revealed twelve skeletons, radiocarbon dated to the Iron Age and Roman period. The high incidence of skeletal trauma characteristic of decapitation in those of Roman date makes this site unusual. A multi-isotope investigation of seven of these individuals was conducted to explore any link between intrusive burial practices and migration at one of Britain’s most northerly frontiers. Bulk collagen analysis provided a terrestrial, ...
#2Hallie R. BuckleyH-Index: 25
Last. Peter PetcheyH-Index: 4
view all 8 authors...
The South Island of New Zealand saw several major waves of migration in the mid-nineteenth century, predominantly from Europe but also with an ethnically distinct Chinese presence. The rural community of Milton, Otago, was a settler community established primarily by immigrants from the United Kingdom in search of a better quality of life. However, these settlers faced unique challenges related to surviving in an isolated location with very little infrastructure compared to their origin populati...
1 CitationsSource
#1Lucy E. McGee (University of Adelaide)H-Index: 8
#2Eduardo Morgado (University of Chile)H-Index: 3
Last. Geoff Nowell (Durham University)H-Index: 37
view all 10 authors...
Volcanological studies coupled with detailed geochemistry can reveal important aspects regarding the melting and ascent processes of a magmatic body. The explosive part of the eruption giving rise to scoria and tephra deposits can hold a wealth of information which can complement chemical analyses of lava flows, however, it is often poorly exposed. A well-exposed scoria deposit and lava flow at the small eruptive center (SEC) San Jorge near Pucon in the Southern Volcanic Zone (SVZ), Chile, provi...
2 CitationsSource