Origin of PCDDs in Ball Clay Assessed with Compound-Specific Chlorine Isotope Analysis and Radiocarbon Dating

2006 ◽  
Vol 40 (12) ◽  
pp. 3730-3735 ◽  
Author(s):  
Henry Holmstrand ◽  
Damien Gadomski ◽  
Manolis Mandalakis ◽  
Mats Tysklind ◽  
Robert Irvine ◽  
...  
Keyword(s):  
Radiocarbon Dating ◽  
Isotope Analysis ◽  
Chlorine Isotope ◽  
Ball Clay

Stable Chlorine Isotope Analysis of Triclosan using GC-qMS: Method development and applications

2021 ◽  
pp. 104961
Author(s):  
Yi Liu ◽  
Shiyang Liu ◽  
Qiang Wang ◽  
Sasho Gligorovski ◽  
Gan Zhang ◽  
...  
Keyword(s):  
Method Development ◽  
Isotope Analysis ◽  
Chlorine Isotope

scholarly journals Toward Improved Accuracy in Chlorine Isotope Analysis: Synthesis Routes for In-House Standards and Characterization via Complementary Mass Spectrometry Methods

2019 ◽  
Vol 91 (19) ◽  
pp. 12290-12297 ◽  
Author(s):  
Christina Lihl ◽  
Julian Renpenning ◽  
Steffen Kümmel ◽  
Faina Gelman ◽  
Heide K. V. Schürner ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Isotope Analysis ◽  
Chlorine Isotope ◽  
Synthesis Routes ◽  
Improved Accuracy

Analysis of the Context and Contents of an Ulua-Style Marble Vase from the Palmarejo Valley, Honduras

2014 ◽  
Vol 25 (1) ◽  
pp. 82-100 ◽  
Author(s):  
E. Christian Wells ◽  
Karla L. Davis-Salazar ◽  
José E. Moreno-Cortes ◽  
Glenn S. L. Stuart ◽  
Anna C. Novotny
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Radiocarbon Dating ◽  
Isotope Analysis ◽  
Human Remains ◽  
Classic Period ◽  
Late Classic ◽  
Residential Group ◽  
Holistic Understanding ◽  
Political Economic

Ulúa-style marble vases played important social, political, economic, and religious roles in southern Mesoamerica during the seventh through eleventh centuries A.D. However, most such vessels known to archaeologists are part of looted collections or else were unearthed before the advent of modern archaeological practices. As a result, little is known about the context, use, and chronology of these objects. Recent investigations at the site of Palos Blancos in northwest Honduras discovered an Ulúa-style marble vase in an undisturbed mortuary context. Excavation of the burial context, along with bioarchaeological and stable isotope analysis of the human remains, suggests that the vase was placed as an offering, possibly to an ancestor of the residential group. Phosphate and pollen studies indicate that the vase once held a corn-based beverage . Radiocarbon dating of four charcoal samples from immediately below and adjacent to the vase yielded a range of dates from the beginning of the Late Classic period, ca.A.D. 600-800. Through analyses of the context and contents of the vase, this research contributes to a more holistic understanding of the use and meaning of Ulúa-style marble vases in southern Mesoamerica.

Radiocarbon Dating and Dietary Stable Isotope Analysis of Kwaday Dän Ts'inchí

2007 ◽  
Vol 72 (4) ◽  
pp. 719-734 ◽  
Author(s):  
Michael P. Richards ◽  
Sheila Greer ◽  
Lorna T. Corr ◽  
Owen Beattie ◽  
Alexander Mackie ◽  
...  
Keyword(s):  
Radiocarbon Dating ◽  
Isotope Analysis ◽  
Human Remains ◽  
Isotopic Analysis ◽  
High Elevation ◽  
Bone Collagen ◽  
Contact Period ◽  
European Contact ◽  
Ams Dating ◽  
The Individual

We report here on the results of AMS dating and isotopic analysis of the frozen human remains named Kwaday Dän Ts'inchí and associated materials recovered from a glacier located in Northwest British Columbia, Canada in 1999. The isotopic analysis of bone collagen (bulk and single amino acids) from the individual indicates a strongly marine diet, which was unexpected given the location of this find, more than 100 km inland eroding out of a high elevation glacier; however, bulk hair and bone cholesterol isotopic values indicate a shift in diet to include more terrestrial foods in the year before death. The radiocarbon dating is not straightforward, as there are difficulties in determining the appropriate marine correction for the human remains, and the spread of dates on the associated artifacts clearly indicates that this was not a single use site. By combining the most recent date on a robe worn by Kwaday Dän Ts'inchi with direct bone collagen dates we conclude that the individual likely dates to between cal A.D. 1670 to 1850, which is in the pre-(or early) European contact period for this region.

scholarly journals Carbon Isotope Analysis of Land Snail Shells: Implications for Carbon Sources and Radiocarbon Dating

Radiocarbon ◽  
1983 ◽  
Vol 25 (3) ◽  
pp. 810-830 ◽  
Author(s):  
Glenn A Goodfriend ◽  
Darden G Hood
Keyword(s):  
Exchange Rate ◽  
Organic Carbon ◽  
Radiocarbon Dating ◽  
Activity Patterns ◽  
Isotope Analysis ◽  
Carbon Sources ◽  
Isotopic Fractionation ◽  
Land Snail ◽  
Land Snails ◽  
Shell Carbonate

13C and 14C analyses were performed on a series of modern Jamaican land snails in order to quantitatively determine the sources of shell carbon. A model of these carbon sources, the pathways by which carbon reaches the shell, and the fractionation processes involved are presented. The contribution of limestone to shell carbonate is variable but may comprise up to 33% of the shell. About 25–40% of shell carbonate is derived from plants and about 30–60% from atmospheric CO2. Variation among populations and species with respect to 13C and 14C is attributed to the effects of limestone incorporation, snail size (as it affects CO2 exchange rate), physiological characteristics (presence of urease, respiration rate), and activity patterns of the snails. A formula for correction for isotopic fractionation of 14C of shell carbonate, based on 13C measurements, is derived. Bicarbonate-aragonite fractionation is apparently very minimal. Shell organic carbon appears to be derived largely from plants but also to a lesser extent from inorganic hemolymph carbon. This introduces the possibility of a small age anomaly of shell organic 14C due to limestone incorporation.

Stable chlorine-isotope analysis of rock samples: New aspects of chlorine extraction

1998 ◽  
Vol 362 (2-3) ◽  
pp. 261-269 ◽  
Author(s):  
Masaaki Musashi ◽  
Gregor Markl ◽  
Rob Kreulen
Keyword(s):  
Isotope Analysis ◽  
Rock Samples ◽  
Chlorine Isotope

scholarly journals Eppawala-AP, Sri Lanka, an Apatite Reference Material for High Precision Chlorine Isotope Analysis

2020 ◽  
Vol 41 (2) ◽  
pp. 51-56 ◽  
Author(s):  
Yang Li ◽  
Qiu-Li Li ◽  
Guo-Qiang Tang ◽  
Anthony Gargano ◽  
Zachary Sharp ◽  
...  
Keyword(s):  
Reference Material ◽  
Sri Lanka ◽  
High Precision ◽  
Isotope Analysis ◽  
Chlorine Isotope
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