Results 41 to 50 of about 16,800 (234)

Investigating relationships among strontium, barium, and seasonality in wild baboons

Archaeometry, EarlyView.
Abstract Geochemical profiles of Australopithecus africanus and baboon teeth show fluctuating trace elements, possibly reflecting seasonal diets. Here we use laser ablation–inductively coupled plasma–mass spectrometric measurements of calcium‐normalized strontium and barium ratios (Sr/Ca and Ba/Ca) and ion microprobe analyses of oxygen isotopes (δ18O ...
Maya Bharatiya, Christine Austin, Manish Arora, Janaína N. Ávila, Esme K. Beamish, Wendy Dirks, Daniel R. Green, Nicole D. Leonard, W. Scott McGraw, Larissa Swedell, Ian S. Williams, Jian‐xin Zhao, Tanya M. Smith   +12 more
wiley   +1 more source

A pilot bioavailable strontium isotope baseline map of Southern British Columbia, Canada

FACETS
Strontium isotopes are used for provenience and mobility studies in archaeology, ecology, and forensic studies, and rely on accurate baseline maps that are used to compare and interpret human and animal strontium ratios.
Damon Tarrant, Joe Hepburn, Virginie Renson, Michael Richards   +3 more
doaj   +1 more source

The Dual Origin of the Terrestrial Atmosphere

, 2003
The origin of the terrestrial atmosphere is one of the most puzzling enigmas in the planetary sciences. It is suggested here that two sources contributed to its formation, fractionated nebular gases and accreted cometary volatiles.
Abe, Anders, Ballentine, Balsiger, Bar-Nun, Bar-Nun, Benz, Bockelée-Morvan, Burnard, Busemann, Caffee, Chen, Chyba, Chyba, Dauphas, Dauphas, Dauphas, Dauphas, Dauphas, Dauphas, Delsemme, Delsemme, Eberhardt, Holland, Honda, Honda, Hunten, Hunten, Ihaka, Iro, Jagoutz, Kerridge, Kimura, Kleine, Kunz, Laufer, Marty, Marty, Marty, Maréchal, Mathew, Mathew, Matsui, Matsumoto, Mazor, Meier, Meisel, Meisel, Morbidelli, Moreira, Moreira, Nicolas Dauphas, Notesco, Notesco, Owen, Owen, Owen, Owen, Ozima, Ozima, Ozima, Pepin, Pepin, Pepin, Pepin, Pepin, Pepin, Podosek, Porcelli, Porcelli, Press, Sagan, Sarda, Sasaki, Schoenberg, Shoemaker, Swindle, Swindle, Tolstikhin, Trieloff, Walker, Wieler, Wieler, Yamamoto, Yin, Yokochi, Zahnle, Zahnle, Zahnle, Zahnle, Zahnle, Zhang   +91 more
core   +1 more source

Sr-Nd-Pb-Hf isotope results from ODP Leg 187: Evidence for mantle dynamics of the Australian-Antarctic Discordance and origin of the Indian MORB source [PDF]

, 2002
New high precision PIMMS Hf and Pb isotope data for 14–28 Ma basalts recovered during ODP Leg 187 are compared with zero-age dredge samples from the Australian-Antarctic Discordance (AAD).
Alvarez, Anderson, Arculus, Barling, Ben Othman, Charles Langmuir, Chauvel, Christie, Christie, David M. Christie, Donnelly, Dosso, Fitton, Fitzsimons, Forsyth, Frey, Frey, Galer, Graham, Gurnis, Hamelin, Hanan, Hart, Hemming, Hochstaedter, J. Godfrey Fitton, Julian A. Pearce, Kelly, Kempton, Kempton, Kent, Klein, Klein, Kuo, Lanyon, Lanyon, Mahoney, Mahoney, Mahoney, Mahoney, Marks, Marks, Marsh, Michard, Nowell, Palmer, Pamela D. Kempton, Patchett, Patchett, Pearce, Pearce, Pearce, Pearce, Peate, Plank, Pyle, Pyle, Pyle, Rehkämper, Royer, Russo, Salters, Salters, Sempéré, Smith, Storey, Tiffany L. Barry, Todt, Unrug, Vervoort, Vlastelic, Vogt, Weis, Weissel, Weissel, West, Yang, Zhang   +77 more
core   +2 more sources

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +1 more source

First isotope analysis and new radiocarbon dating of Trypillia (Tripolye) farmers from Verteba Cave, Bilche Zolote, Ukraine

Documenta Praehistorica, 2017
This paper presents an analysis of human and animal remains from Verteba cave, near Bilche Zolote, western Ukraine. This study was prompted by a paucity of direct dates on this material and the need to contextualise these remains in relation both to the
Malcolm C. Lillie, Chelsea E. Budd, Inna D. Potekhina, Douglas Price, Mykhailo Sokhatsky, Alexey G. Nikitin   +5 more
doaj   +1 more source

Oxygen isotope geochemistry of the second HSDP core [PDF]

, 2003
Oxygen isotope ratios were measured in olivine phenocrysts (~1 mm diameter), olivine microphenocrysts (generally ~100–200 µm diameter), glass, and/or matrix from 89 samples collected from depths down to 3079.7 m in the second, and main, HSDP core (HSDP-2)
Eiler, John M., Kitchen, Nami E., Wang, Zhengrong   +2 more
core   +1 more source

RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva, Cristiano Lana, Ricardo Scholz, Ian Buick, Sandra Kamo, Nick M.W. Roberts, Axel Gerdes, Michael Wiedenbeck, Blair Schoene, Francisco E. Apen, Sean P. Gaynor   +10 more
wiley   +1 more source

Present Status and Future Programs of the n_TOF Experiment [PDF]

, 2011
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License 3.0, which permits unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly ...
Andriamonje, S., Andrzejewski, J., Audouin, L., Avrigeanu, V., Barbagallo, M., Becares, V., Becvar, F., Belloni, F., Berthoumieux, E., Billowes, J., Boccone, V., Brugger, M., Calviani, M., Calvino, F., Cano-Ott, D., Carrapico, C., Cerutti, F., Chiaveri, E., Chin, M., Colonna, N., Cortes, G., Cortes-Giraldo, M. A., Diakaki, M., Dillmann, I., Domingo-Pardo, C., Duran, I., Dzysiuk, N., Eleftheriadis, C., Fernandez-Ordonez, M., Ferrari, A., Fraval, K., Ganesan, S., Giubrone, G., Gomez-Hornillos, M. B., Goncalves, I. F., Gonzalez-Romero, E., Gramegna, F., Griesmayer, E., Guerrero, C., Gunsing, F., Heil, M., Jenkins, D. G., Jericha, E., Kadi, Y., Kaeppeler, F., Karadimos, D., Kokkoris, M., Kroll, J., Krticka, M., Lederer, C., Leeb, H., Leong, L. S., Losito, R., Lozano, M., Manousos, A., Marganiec, J., Martinez, T., Massimi, C., Mastinu, P. F., Mastromarco, M., Meaze, M., Mendoza, E., Mengoni, A., Milazzo, P. M., Mirea, M., Paradela, C., Pavlik, A., Perkowski, J., Praena, J., Quesada, J. M., Rauscher, T., Reifarth, R., Riego, A., Roman, F., Rubbia, C., Sarmento, R., Tagliente, G., Tain, J. L., Tarrio, D., Tassan-Got, L., Tsinganis, A., Valenta, S., Vannini, G., Variale, V., Vaz, P., Ventura, A., Vermeulen, M. J., Versaci, R., Vlachoudis, V., Vlastou, R., Wallner, A., Ware, T., Weiss, C., Wright, T. J.   +93 more
core   +4 more sources

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

Geostandards and Geoanalytical Research, EarlyView.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro, Erica Martini Tonetto, Elson P. Oliveira, Mauricio Ibañez‐Mejia, Cristina Talavera, Neal J. McNaughton, Jacinta Enzweiler, Michael Wiedenbeck   +7 more
wiley   +1 more source