scholarly journals Contribution to Longobard dietary studies: stable carbon and nitrogen isotope data from Castel Trosino (6th-8th CE, Ascoli Piceno, Central Italy)

Data in Brief ◽  
2021 ◽  
pp. 107290
Author(s):  
Sara Bernardini ◽  
Seminew Asrat Mogesie ◽  
Ileana Micarelli ◽  
Giorgio Manzi ◽  
Mary Anne Tafuri
Keyword(s):  
Central Italy ◽  
Nitrogen Isotope ◽  
Stable Carbon ◽  
Carbon And Nitrogen ◽  
Isotope Data

RADIOCARBON DATING AND DIET: THE JIAOJIA SITE IN CHINA

Radiocarbon ◽  
2020 ◽  
Vol 62 (5) ◽  
pp. 1515-1523
Author(s):  
Fen Wang ◽  
Chao Yuan ◽  
Shiling Yuan
Keyword(s):  
Mass Spectrometry ◽  
Accelerator Mass Spectrometry ◽  
Radiocarbon Dating ◽  
Nitrogen Isotope ◽  
Stable Carbon ◽  
Human Diet ◽  
Carbon And Nitrogen ◽  
Isotope Data

ABSTRACTThe Jiaojia site is the earliest city in the Haidai area of China, about 5000 years old. To obtain more accurately the beginning and end of this site, radiocarbon accelerator mass spectrometry (14C AMS) measurements, along with stable carbon and nitrogen isotope data, were collected from 13 bone samples. According to the measured dates, human diet was dominated by C4-based plants, and the Jiaojia site appeared before 2900 BC.

scholarly journals Spatial and Seasonal Variations of Sedimentary Organic Matter in a Subtropical Bay: Implication for Human Interventions

2020 ◽  
Vol 17 (4) ◽  
pp. 1362 ◽  
Author(s):  
Xuan Lu ◽  
Fengxia Zhou ◽  
Fajin Chen ◽  
Qibin Lao ◽  
Qingmei Zhu ◽  
...  
Keyword(s):  
Organic Matter ◽  
Surface Sediment ◽  
Seasonal Variations ◽  
Seasonal Changes ◽  
Nitrogen Isotope ◽  
Anthropogenic Influences ◽  
Stable Carbon ◽  
Δ13c And Δ15n ◽  
Carbon And Nitrogen ◽  
Induced Changes

Elemental (total organic carbon (TOC) and total nitrogen (TN)) and stable carbon and nitrogen isotope compositions (δ13C and δ15N, respectively) in the surface sediment of Zhanjiang Bay (ZJB) in spring and summer were measured to study the spatial and seasonal changes of organic matter (OM) and assess the human-induced and environment-induced changes in the area. The OM in the surface sediment of ZJB was a mixture of terrestrial and marine sources, and was dominated by marine OM (54.9% ± 15.2%). Compared to the central ZJB, the channel and coastal ZJB areas had higher δ13C and δ15N values, higher TOC and TN concentrations, and lower TOC/TN ratios, indicating higher primary productivity and higher percentages of marine OM in the latter two subregions. Mariculture activities, sewage inputs, and dredging were responsible for these phenomena. Clear seasonal variations in OM were observed in ZJB. The average proportions of terrestrial OM in summer increased by 10.2% in the ZJB channel and 26.0% in the coastal ZJB area compared with those in spring. Heavy rainfall brought a large amount of terrestrial OM into the channel and coastal ZJB areas, leading to the increase of the terrestrial OM fraction in these two subregions in summer. In summary, anthropogenic influences had a significant influence on the spatial and seasonal variations of sedimentary OM in ZJB.

scholarly journals Effects of Lugol's iodine on long‐term preservation of marine plankton samples for molecular and stable carbon and nitrogen isotope analyses

2020 ◽  
Vol 18 (11) ◽  
pp. 635-643
Author(s):  
Masayoshi Sano ◽  
Ryosuke Makabe ◽  
Norio Kurosawa ◽  
Masato Moteki ◽  
Tsuneo Odate
Keyword(s):  
Nitrogen Isotope ◽  
Marine Plankton ◽  
Stable Carbon ◽  
Carbon And Nitrogen ◽  
Lugol’S Iodine ◽  
Long Term Preservation ◽  
Isotope Analyses

scholarly journals Hair cortisol and stable carbon and nitrogen isotope ratios in barbary macaques ( Macaca sylvanus ) from Gibraltar

2019 ◽  
Vol 33 (9) ◽  
pp. 831-838 ◽  
Author(s):  
Michael A. Schillaci ◽  
Jessica Lintlop ◽  
Monika Sumra ◽  
Mark Pizarro ◽  
Lisa Jones‐Engel
Keyword(s):  
Nitrogen Isotope ◽  
Isotope Ratios ◽  
Hair Cortisol ◽  
Stable Carbon ◽  
Macaca Sylvanus ◽  
Barbary Macaques ◽  
Carbon And Nitrogen
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