Results 11 to 20 of about 22,354,229 (295)

An investigation into the archaeological application of carbon stable isotope analysis used to establish crop water availability: solutions and ways forward [PDF]

, 2011
Carbon stable isotope analysis of charred cereal remains is a relatively new method employed by archaeological scientists to investigate ancient climate and irrigation regimes. The aim of this study was to assess the effect of environmental variables
Jenkins, Emma L., Stokes, H., Muldner, G.   +2 more
core   +10 more sources

Stable carbon and radiocarbon isotope compositions of particle size fractions to determine origins of sedimentary organic matter in an estuary [PDF]

, 2002
Stable and radioactive carbon isotopic compositions of particle size fractions of a surface sediment from the Ems-Dollard estuary vary considerably with particle size. The organic material in the fine fractions (
Megens, L.,, de Leeuw, JW, van der Plicht, J, Smedes, F, Smedes, F.,, Megens, L, Plicht, J. van der,, Leeuw, J.W. de,   +7 more
core   +1 more source

Energy Sources of the Depth-Generalist Mixotrophic Coral Stylophora pistillata

Frontiers in Marine Science, 2020
Energy sources of corals, ultimately sunlight and plankton availability, change dramatically from shallow to mesophotic (30–150 m) reefs. Depth-generalist corals, those that occupy both of these two distinct ecosystems, are adapted to cope with such ...
Stephane Martinez, Stephane Martinez, Yuval Kolodny, Yuval Kolodny, Eli Shemesh, Federica Scucchia, Federica Scucchia, Reinat Nevo, Smadar Levin-Zaidman, Yossi Paltiel, Yossi Paltiel, Nir Keren, Dan Tchernov, Dan Tchernov, Tali Mass, Tali Mass   +15 more
doaj   +1 more source

C and O Isotope Chemostratigraphy and Bulk Chemistry of Reef Limestones of the Tambaba Formation, Paraíba Basin, Northeastern Brazil [PDF]

Anuário do Instituto de Geociências, 2020
This work focuses on the behavior of the C and O isotopes and major and trace element chemistry of the carbonate rocks of the Tambaba Formation, Paraíba Basin, Northeastern Brazil.
José Diego D. Veras, Alcides N. Sial, Valderez P. Ferreira, Virgínio H. Neumann   +3 more
doaj   +1 more source

Revisited digestion methods for trace element analysis in human hair

Journal of Analytical Science and Technology, 2019
Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no ...
Woo-Jin Shin, Minkyoung Jung, Jong-Sik Ryu, Jihwan Hwang, Kwang-Sik Lee   +4 more
doaj   +1 more source

Comprehensive inter-laboratory calibration of reference materials for δ18O versus VSMOW using various on-line high-temperature conversion techniques [PDF]

, 2009
Internationally distributed organic and inorganic oxygen isotopic reference materials have been calibrated by six laboratories carrying out more than 5300 measurements using a variety of high-temperature conversion techniques (HTC) in an evaluation ...
Weise, Stephan M., Mroczkowski, S. J., Brand, Willi A., Qi, H., Stuart-Williams, Hilary,, Geilmann, Heike, Aerts-Bijma, A. T., Weise, S. E., Jansen, H., Geilmann, Heike,, Qi, Haiping, Coplen, T. B., Bohlke, J., Coplen, Tyler B.,, J. K. Böhlke, Qi, H. P., Aerts-Bijma, Anita T.; id_orcid, Meijer, Harro A. J., Weise, S., Soergel, Karin,, Groning, M., Böhlke, J.K., Gröning, Manfred,, Stephan M. Weise, Gröning, Manfred, Haiping Qi, Anita T. Aerts‐Bijma, Jansen, Henk G.,, Heike Geilmann, Meijer, H. A. J., Gehre, Matthias, Jansen, Henk G., Meijer, Harro A. J.; id_orcid, Roland A. Werner, Werner, Roland A.,, Coplen, Tyler B., Böhlke, J.K.,, Werner, R., Werner, Roland A., Geilmann, H., Jansen, H. G., Aerts-Bijma, Anita T., Stuart-Williams, H., Karin Soergel, Henk G. Jansen, Stanley J. Mroczkowski, Aerts-Bijma, Anita T.,, Gehre, Matthias,, Gehre, M., Bohlke, J. K., Mroczkowski, Stanley J.,, Meijer, Harro A.J.,, Meijer, H., Mroczkowski, S., Mroczkowski, Stanley J., Brand, W., Tyler B. Coplen, Soergel, Karin, Hilary Stuart‐Williams, Weise, Stephan M.,, Willi A. Brand, Aerts-Bijma, A., Matthias Gehre, Brand, Willi A.,, Manfred Gröning, Soergel, K., Coplen, T., Qi, Haiping,, Stuart-Williams, Hilary, Harro A. J. Meijer   +69 more
core   +1 more source

DIETARY STRATEGIES OF NORTHERN SELKUPS IN THE 18th–19th CENTURIES

Вестник археологии, антропологии и этнографии, 2019
The article considers the dietary habits of a small Selkup group that lived in the north of Western Siberia along the upper reaches of the Taz River in the18th–19th centuries.
O.E. Poshekhonova, D.I. Razhev, S.M. Slepchenko, Z.V. Marchenko, V.N. Adaev   +4 more
doaj   +1 more source

Archaeologies of Hair: the head and its grooming in ancient and contemporary societies

Internet Archaeology, 2016
This collection of short articles represents an original attempt to bring together scholarship that is usually divided along lines of specialism in time, place, method, or discipline.
Steven P. Ashby
doaj   +1 more source

The distribution of anadromy and residency in steelhead/ rainbow trout in the Eel River, northwestern California

California Fish and Wildlife Journal, 2021
To inform management and conservation of the species, we investigated the distribution of anadromy and residency of steelhead/rainbow trout (Oncorhynchus mykiss) in the Eel River of northwestern California.
Bret C. Harvey, Rodney J. Nakamoto, Adam J. R. Kent, Christian E. Zimmerman   +3 more
doaj   +1 more source

Trophic Niche Partitioning of Five Sciaenidae Species Sampled in Zhoushan Archipelago Waters via Stable Isotope Analysis

Frontiers in Marine Science, 2022
Sciaenid fishes are usually associated with large freshwater inputs and are the most important economic fish on the coastal shelf off mainland China.
Jing Wang, Jing Wang, Ri-Jin Jiang, Ri-Jin Jiang, Ri-Jin Jiang, Ri-Jin Jiang, Yi Xiao, Yi Xiao, Rui Yin, Feng Chen, Yong-dong Zhou, Han-Xiang Xu, Han-Xiang Xu   +12 more
doaj   +1 more source