Výsledky vyhledávání - "G. M. Nowell"

Akademický článek

Isotopic Compositions of Plagioclase From Plutonic Xenoliths Reveal Crustal Assimilation Below Martinique, Lesser Antilles Arc

Autor: J. R. Brown, G. F. Cooper, G. M. Nowell, C. G. Macpherson, I. Neill, J. Prytulak

Publikováno v: Frontiers in Earth Science, Vol 9 (2021)

The chemical and isotopic compositions of volcanic arc lavas often show evidence for involvement of a sedimentary component during magma genesis. Determining where this sedimentary component is added to arc magmas is of vital importance for constrain

Externí odkaz: https://doaj.org/article/9eb93f833e1c4962b68bcc62e6fa2775

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Multi-isotope evidence of population aggregation in the Natufian and scant migration during the early Neolithic of the Southern Levant

Autor: Juan José Ibáñez-Estévez, G. M. Nowell, Andrew R. Millard, Fanny Bocquentin, Zeidan Kafafi, Colin G. Macpherson, Marie Anton, Juan Muñiz, Joanne Peterkin, Jonathan Santana, Mohammad Alrousan

Publikováno v: Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports, 2021, 11, pp.11857. ⟨10.1038/s41598-021-90795-2⟩
Scientific Reports, Nature Publishing Group, 2021, 11, pp.11857. ⟨10.1038/s41598-021-90795-2⟩
Scientific Reports, 2021, Vol.11(1), pp.11857 [Peer Reviewed Journal]
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Human mobility and migration are thought to have played essential roles in the consolidation and expansion of sedentary villages, long-distance exchanges and transmission of ideas and practices during the Neolithic transition of the Near East. Few is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c411f5b7137d71b2853a4d5f62833e4
http://europepmc.org/articles/PMC8178372

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At the world's edge: Reconstructing diet and geographic origins in medieval Iceland using isotope and trace element analyses

Autor: Rebecca Gowland, Janet Montgomery, Steinunn Kristjánsdóttir, Tina Jakob, Darren R. Gröcke, Joe W. Walser, Chris J. Ottley, G. M. Nowell

Publikováno v: American Journal of Physical Anthropology
American journal of physical anthropology, 2020, Vol.171(1), pp.142-163 [Peer Reviewed Journal]

Objectives A multi‐isotope study was conducted on individuals buried at Skriðuklaustur monastery (AD 1493–1554) to investigate their geographic origins and dietary composition. Comparative material from individuals excavated from Skeljastaðir,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::825cbb3211a12fc3f9d3af7e718661dc
https://hdl.handle.net/20.500.11815/2519

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Re-Os and HSE in individual base metal sulfide grains: Evaluating micro-analytical procedures using a sulfide reference material

Autor: Alessandro Bragagni, G. M. Nowell, Alexander Heuser, Iris M. Speelmanns, Ashlea N. Wainwright, D. van Acken, Raúl O.C. Fonseca, Ambre Luguet

Publikováno v: Chemical Geology. 493:426-440

Two Fe-Ni sulfides, resembling the chemical composition of a typical mantle base metal sulfide (BMS), were synthesized and used to test micro-analytical procedures (sample digestion and chemical separation) to determine Os-187/Os-188 and highly sider

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3583b69938412fa177e45f5a4dc99ee1
https://doi.org/10.1016/j.chemgeo.2018.06.020

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Weathering fluxes and sediment provenance on the SW Scottish shelf during the last deglaciation

Autor: Chris D. Clark, Steve Moreton, Kirsty C. Crocket, S. Louise Callard, Derek Fabel, John A. Howe, G. M. Nowell, Sara Benetti, Riccardo Arosio

Publikováno v: Elsevier, pp. 81-98
Marine Geology (0025-3227) (Elsevier Science Bv), 2018-08, Vol. 402, P. 81-98

The reconstruction of past ice sheet dynamics can shed a light on long-term ice stream activity, and in turn provide constraints on the response of modern ice sheets to climate change. The Hebrides Ice Stream (HIS) flowed across part of the western S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b780d0af4a06ed2d2bc7063956b01e66
https://doi.org/10.1016/j.margeo.2017.08.017

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The geological record of base metal sulfides in the cratonic mantle: A microscale 187Os/188Os study of peridotite xenoliths from Somerset Island, Rae Craton (Canada)

Autor: D.G. Pearson, Raúl O.C. Fonseca, Jean-Pierre Lorand, Ambre Luguet, G. M. Nowell, Bruce A. Kjarsgaard, Alessandro Bragagni

Publikováno v: Geochimica et Cosmochimica Acta. 216:264-285

We report detailed petrographic investigations along with 187Os/188Os data in Base Metal Sulfide (BMS) on four cratonic mantle xenoliths from Somerset Island (Rae Craton, Canada). The results shed light on the processes affecting the Re-Os systematic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f58453d2f8a134696b74e0b354347b41
https://doi.org/10.1016/j.gca.2017.04.015

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Generation of the Mt Kinabalu granite by crustal contamination of intraplate magma modelled by equilibrated major element assimilation with fractional crystallization (EME-AFC)

Autor: Colin G. Macpherson, Alex Burton-Johnson, Chris J. Ottley, Adrian J. Boyce, G. M. Nowell

Publikováno v: Journal of petrology, 2019, Vol.60(7), pp.1461-1487 [Peer Reviewed Journal]

New geochemical data are presented for the composite units of the Mount Kinabalu granitoid intrusion of Borneo and utilised to explore the discrimination between crustal- and mantle-derived granitic magmas. The geochemical data demonstrate that the u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7698404e4241c625a376904b55da54a9
https://doi.org/10.1093/petrology/egz036

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