Zobrazeno 1 - 10
of 278
pro vyhledávání: '"Ian S. Williams"'
Autor:
Yamirka Rojas‐Agramonte, Boris J. P. Kaus, Andrea Piccolo, Ian S. Williams, Axel Gerdes, Jean Wong, HangXian Xie, Stephan Buhre, Theofilos Toulkeridis, Pilar Montero, Antonio Garcia‐Casco
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 11, Pp n/a-n/a (2022)
Abstract In this contribution we report the first systematic study of zircon U‐Pb geochronology and δ18O‐εHf(t) isotope geochemistry from 10 islands of the hot‐spot related Galapagos Archipelago. The data extracted from the zircons allow them
Externí odkaz:
https://doaj.org/article/f7a673804c2d430288b217c7479ecde9
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
Inherited zircon ages and geochemical features of late Cadomian and late Variscan granitoids from the north-eastern Peloritani Mountains (NE Sicily) and the western Aspromonte Massif (SW Calabria) shed new light on the sources and processes involved
Externí odkaz:
https://doaj.org/article/3739adca2fa046829b7c266882ef7699
Autor:
C. Ishwar-Kumar, K. Sajeev, M. Satish-Kumar, Ian S. Williams, Simon A. Wilde, T. Hokada, Brian F. Windley
Publikováno v:
American Journal of Science. 322:108-163
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41e1712380102a549f2ab1d308358340
https://doi.org/10.2475/02.2022.02
https://doi.org/10.2475/02.2022.02
Autor:
Yu-ya Gao, Tong-xiang Ren, Ian S. Williams, Trevor R. Ireland, Tao Long, Olaf Rienitz, Axel Pramann, Song Wang, Pan-shu Song, Jun Wang
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:2546-2555
Several highly-enriched 28Si crystals were produced to enable a better determination of the Avogadro constant through removing the uncertainty associated with the abundance determination of the minor isotopes 29Si and 30Si.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2408e038bca037ae5d28e0660a7529a
https://doi.org/10.1039/d2ja00229a
https://doi.org/10.1039/d2ja00229a
Autor:
Maria Rosa Scicchitano, Michael C. Jollands, Ian S. Williams, Jörg Hermann, Daniela Rubatto, Noriko T. Kita, William O. Nachlas, John W. Valley, Stephane Escrig, Anders Meibom
Publikováno v:
Abstracts
Knowledge of oxygen diffusion in garnet is crucial for a correct interpretation of oxygen isotopic signatures in natural samples. Scicchitano et al. (2022) reported a series of experiments with pyrope and YAG at P-T of 1-atm to 2.5 GPa and 900 °C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::852444c96f145502dd2f1539b1b248e8
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015659
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015659
Publikováno v:
Geological Journal. 57:133-149
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::037227cd349dfe5e5a0eaceb5b64e693
https://doi.org/10.1002/gj.4287
https://doi.org/10.1002/gj.4287
Publikováno v:
Geological Journal. 56:5275-5289
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73522bf0f721e19670e3c374fd11be2f
https://doi.org/10.1002/gj.4236
https://doi.org/10.1002/gj.4236
Autor:
Daniel R. Green, Janaina N. Ávila, Susanne Cote, Wendy Dirks, Daeun Lee, Christopher J. Poulsen, Ian S. Williams, Tanya M. Smith
Publikováno v:
Proceedings of the National Academy of Sciences, 2022, Vol.119(35) [Peer Reviewed Journal]
Variability in resource availability is hypothesized to be a significant driver of primate adaptation and evolution, but most paleoclimate proxies cannot recover environmental seasonality on the scale of an individual lifespan. Oxygen isotope composi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06f73fa4ea7a4b3b435ccb19b0cdccbd
http://dro.dur.ac.uk/36991/
http://dro.dur.ac.uk/36991/
Publikováno v:
The Journal of the Geological Society of Japan. 127:69-78
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffb5c7b951003f52b36e17a1da8aa0b8
https://doi.org/10.5575/geosoc.2020.0053
https://doi.org/10.5575/geosoc.2020.0053
Autor:
Tanya M. Smith, Christine Austin, Janaína Ávila, Manish Arora, Ian S. Williams, Daniel R Green, Wendy Dirks
Publikováno v:
Journal of archaeological science, 2022, Vol.140, pp.105564 [Peer Reviewed Journal]
In 2013 we presented a model for identifying nursing behavior from primate teeth based on rapid postnatal concentration changes in the non-essential trace element barium. Here we leverage the permanent neonatal (birth) line in the enamel of several d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ffc5a55dfc593bba65447c781bf534b
http://dro.dur.ac.uk/35898/
http://dro.dur.ac.uk/35898/