Skip to main content

Research Repository

Advanced Search

Dr Geoffrey Nowell's Outputs (116)

Sr and Pb isotope micro-analysis in plagioclase crystals from Skye lavas: An insight into open-system processes in a flood basalt province (2008)
Journal Article
Font, L., Davidson, J., Pearson, D., Nowell, G., Jerram, D., & Ottley, C. (2008). Sr and Pb isotope micro-analysis in plagioclase crystals from Skye lavas: An insight into open-system processes in a flood basalt province. Journal of Petrology, 49(8), 1449-1471. https://doi.org/10.1093/petrology/egn032

Crystals in many magmatic rocks are heterogeneous in terms of their isotope composition. Detailed crystal-isotope stratigraphy (CIS) studies have shown that crystals act as reliable recorders of their magma source composition and of the pathways of m... Read More about Sr and Pb isotope micro-analysis in plagioclase crystals from Skye lavas: An insight into open-system processes in a flood basalt province.

LAPITA MIGRANTS IN THE PACIFIC’S OLDEST CEMETERY:ISOTOPIC ANALYSIS AT TEOUMA, VANUATU (2007)
Journal Article
Alexander Bentley, R., Buckley, H. R., Spriggs, M., Bedford, S., Ottley, C. J., Nowell, G. M., …Graham Pearson, D. (2007). LAPITA MIGRANTS IN THE PACIFIC’S OLDEST CEMETERY:ISOTOPIC ANALYSIS AT TEOUMA, VANUATU. American Antiquity, 72, 645-656

Teouma, an archaeological site on Efate Island, Vanuatu, features the earliest cemetery yet discovered of the colonizers of Remote Oceania, from the late second millennium B.C. In order to investigate potential migration of seventeen human individual... Read More about LAPITA MIGRANTS IN THE PACIFIC’S OLDEST CEMETERY:ISOTOPIC ANALYSIS AT TEOUMA, VANUATU.

A link between large mantle melting events and continent growth seen in osmium isotopes (2007)
Journal Article
Pearson, D., Parman, S., & Nowell, G. (2007). A link between large mantle melting events and continent growth seen in osmium isotopes. Nature, 449(7159), 202-205. https://doi.org/10.1038/nature06122

Although Earth's continental crust is thought to have been derived from the mantle, the timing and mode of crust formation have proven to be elusive issues. The area of preserved crust diminishes markedly with age, and this can be interpreted as bein... Read More about A link between large mantle melting events and continent growth seen in osmium isotopes.

Combining CSD and isotopic microanalysis: Magma supply and mixing processes at Stromboli Volcano, Aeolian Islands, Italy (2007)
Journal Article
Morgan, D., Jerram, D., Chertkoff, D., Davidson, J., Pearson, D., Kronz, A., & Nowell, G. (2007). Combining CSD and isotopic microanalysis: Magma supply and mixing processes at Stromboli Volcano, Aeolian Islands, Italy. Earth and Planetary Science Letters, 260(3-4), 419-431. https://doi.org/10.1016/j.epsl.2007.05.037

Integrating isotopic microanalysis with other analytical techniques creates powerful new methodologies for understanding the evolution of rock samples at the sub-grain scale. Here we present Crystal Size Distribution (CSD) data for a 26,000 year old... Read More about Combining CSD and isotopic microanalysis: Magma supply and mixing processes at Stromboli Volcano, Aeolian Islands, Italy.

Origin of CFB magmatism: Multi-tiered intracrustal picrite-rhyolite magmatic plumbing at Spitzkoppe, western Namibia, during early-Cretaceous Etendeka magmatism (2007)
Journal Article
Thompson, R., Riches, A., Antoshechkina, P., Pearson, D., Nowell, G., Ottley, C., …Niku-Paavola, V. (2007). Origin of CFB magmatism: Multi-tiered intracrustal picrite-rhyolite magmatic plumbing at Spitzkoppe, western Namibia, during early-Cretaceous Etendeka magmatism. Journal of Petrology, 48(6), 1119-1154. https://doi.org/10.1093/petrology/egm012

Early Cretaceous tholeiitic picrite-to-rhyolite dykes around Spitzkoppe, western Namibia, are part of the extensive Henties Bay–Outjo swarm, penecontemporaneous with 132 Ma Etendeka lavas 100 km to the NW. Although only intermediate to rhyolitic dyke... Read More about Origin of CFB magmatism: Multi-tiered intracrustal picrite-rhyolite magmatic plumbing at Spitzkoppe, western Namibia, during early-Cretaceous Etendeka magmatism.

Adaptive dosing and platinum-DNA adduct formation in children receiving high-dose carboplatin for the treatment of solid tumours (2007)
Journal Article
Veal, G., Errington, J., Tilby, M., Pearson, A., Foot, A., McDowell, H., …Boddy, A. (2007). Adaptive dosing and platinum-DNA adduct formation in children receiving high-dose carboplatin for the treatment of solid tumours. British Journal of Cancer, 96(5), 725-731. https://doi.org/10.1038/sj.bjc.6603607

A pharmacokinetic–pharmacodynamic study was carried out to investigate the feasibility and potential importance of therapeutic monitoring following high-dose carboplatin treatment in children. High-dose carboplatin was administered over 3 or 5 days,... Read More about Adaptive dosing and platinum-DNA adduct formation in children receiving high-dose carboplatin for the treatment of solid tumours.

Methods for the microsampling and High-precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications. (2006)
Journal Article
Charlier, B., Ginibre, C., Morgan, D., Nowell, G., Pearson, D., Davidson, J., & Ottley, C. (2006). Methods for the microsampling and High-precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications. Chemical Geology, 232, 114-133. https://doi.org/10.1016/j.chemgeo.2006.02.015

Micromilling of single crystals to yield microgram-sized solid samples for subsequent isotopic analysis can yield important petrogenetic information from crystals (especially feldspars) in magmatic rocks. Exceptional detail can be gained because the... Read More about Methods for the microsampling and High-precision analysis of strontium and rubidium isotopes at single crystal scale for petrological and geochronological applications..

Evidence of diverse depletion and metasomatic events in harzburgite–lherzolite mantle xenoliths from the Iberian plate (Olot, NE Spain): Implications for lithosphere accretionary processes. (2006)
Journal Article
Bianchini, G., Beccaluva, L., Bonadiman, C., Nowell, G., Pearson, D., Siena, F., & Wilson, M. (2006). Evidence of diverse depletion and metasomatic events in harzburgite–lherzolite mantle xenoliths from the Iberian plate (Olot, NE Spain): Implications for lithosphere accretionary processes. Lithos, 94, https://doi.org/10.1016/j.lithos.2006.06.008

Mass Spectrometers (2005)
Book Chapter
Batey, J., Prohaska, T., Horstwood, M., Nowell, G., Goenaga-Infante, H., & Eiden, G. (2005). Mass Spectrometers. In S. Nelms (Ed.), ICP Mass Spectrometry Handbook (26-116). Blackwell

Hf isotopes in zircon from the western Superior province, Canada: Implications for Archean crustal development and evolution of the depleted mantle reservoir (2005)
Journal Article
Davis, D., Amelin, Y., Nowell, G., & Parrish, R. (2005). Hf isotopes in zircon from the western Superior province, Canada: Implications for Archean crustal development and evolution of the depleted mantle reservoir. Precambrian Research, 140(3-4), 132-156. https://doi.org/10.1016/j.precamres.2005.07.005

U–Pb and Hf isotopic measurements on zircons from the western Superior province confirm that the area contains at least three distinct terrane types. Juvenile terranes that formed mostly within the time span 2.75–2.68 Ga occupy much of the western Wa... Read More about Hf isotopes in zircon from the western Superior province, Canada: Implications for Archean crustal development and evolution of the depleted mantle reservoir.

Solution and laser ablation analysis of sulphur isotopes with the Neptune high resolution multi-collector ICP-MS (MC-ICP-MS): Application to diffusive gradients in thin films. (2005)
Book Chapter
Bellis, D., Nowell, G., Ottley, C., Pearson, D., & Davison, W. (2005). Solution and laser ablation analysis of sulphur isotopes with the Neptune high resolution multi-collector ICP-MS (MC-ICP-MS): Application to diffusive gradients in thin films. In J. Holland, & D. Bandura (Eds.), . Royal Society of Chemistry. https://doi.org/10.1039/9781847552419-00268

Phase I and Pharmacodynamic Study of Fludarabine, Carboplatin, and Topotecan in Patients with Relapsed, Refractory or High Risk Acute Leukemia and Advanced Myelodysplastic Syndromes. (2004)
Journal Article
Cooper, B., Veal, G., Radivoyevitch, T., Tilby, M., Meyerson, H., Lazarus, H., …Gerson, S. (2004). Phase I and Pharmacodynamic Study of Fludarabine, Carboplatin, and Topotecan in Patients with Relapsed, Refractory or High Risk Acute Leukemia and Advanced Myelodysplastic Syndromes. Clinical Cancer Research, 10, 6830-6839

Hf isotope systematics of kimberlites and their megacrysts: New constraints on their source regions (2004)
Journal Article
Nowell, G., Pearson, D., Bell, D., Carlson, R., Smith, C., Kempton, P., & Noble, S. (2004). Hf isotope systematics of kimberlites and their megacrysts: New constraints on their source regions. Journal of Petrology, 45(8), 1583-1612. https://doi.org/10.1093/petrology/egh024

Kimberlites from Southern Africa, along with their low-Cr megacrysts, have unusual Hf–Nd isotopic characteristics. Group I and Transitional kimberlites define arrays trending oblique to, and well below, the Nd–Hf isotope ‘mantle array’, defined by oc... Read More about Hf isotope systematics of kimberlites and their megacrysts: New constraints on their source regions.

Re-Os and Lu-Hf isotope constraints on the origin and age of pyroxenites from the Beni Bousera peridotite massif: implications for mixed peridotite-pyroxenite melting models (2004)
Journal Article
Pearson, D., & Nowell, G. (2004). Re-Os and Lu-Hf isotope constraints on the origin and age of pyroxenites from the Beni Bousera peridotite massif: implications for mixed peridotite-pyroxenite melting models. Journal of Petrology, 45(2), 439-455. https://doi.org/10.1093/petrology/egg102

A suite of pyroxenites from the Beni Bousera peridotite massif, northern Morocco, have been analysed for Re–Os and Lu–Hf isotopic compositions. Measured sections of the massif indicate that pyroxenite layers make up between 1 and 9% by volume of the... Read More about Re-Os and Lu-Hf isotope constraints on the origin and age of pyroxenites from the Beni Bousera peridotite massif: implications for mixed peridotite-pyroxenite melting models.

Measurement of Os isotopes using plasma ionisation multi-collector mass spectrometry and a suggested scheme for the accurate determination of interfering element ratios. (2003)
Book Chapter
Holland, G., Tanner, S. D., Pearson, D. G., & Nowell, G. (2003). Measurement of Os isotopes using plasma ionisation multi-collector mass spectrometry and a suggested scheme for the accurate determination of interfering element ratios. In J. Holland, & S. Tanner (Eds.), Plasma Source Mass Spectrometry (362-373). Royal Society of Chemistry. https://doi.org/10.1039/9781847551689-00362