Speciation and Sources of Brown Carbon in Precipitation at Seoul, Korea: Insights from Excitation–Emission Matrix Spectroscopy and Carbon Isotopic Analysis

2017 ◽  
Vol 51 (20) ◽  
pp. 11580-11587 ◽  
Author(s):  
Ge Yan ◽  
Guebuem Kim
Keyword(s):  
Isotopic Analysis ◽  
Brown Carbon ◽  
Excitation Emission Matrix ◽  
Carbon Isotopic

scholarly journals Isotopic Evidence for Long-Distance Connections of the AD Thirteenth-Century Promontory Caves Occupants

2021 ◽  
pp. 1-23
Author(s):  
Jessica Z. Metcalfe ◽  
John W. Ives ◽  
Sabrina Shirazi ◽  
Kevin P. Gilmore ◽  
Jennifer Hallson ◽  
...  
Keyword(s):  
Material Culture ◽  
Thirteenth Century ◽  
Isotopic Analysis ◽  
Bone Collagen ◽  
Turnover Rates ◽  
Long Distance ◽  
Carbon Isotopic ◽  
Local Plant ◽  
Northern Utah ◽  
C Value

The Promontory caves (Utah) and Franktown Cave (Colorado) contain high-fidelity records of short-term occupations by groups with material culture connections to the Subarctic/Northern Plains. This research uses Promontory and Franktown bison dung, hair, hide, and bone collagen to establish local baseline carbon isotopic variability and identify leather from a distant source. The ankle wrap of one Promontory Cave 1 moccasin had a δ13C value that indicates a substantial C4 component to the animal's diet, unlike the C3 diets inferred from 171 other Promontory and northern Utah bison samples. We draw on a unique combination of multitissue isotopic analysis, carbon isoscapes, ancient DNA (species and sex identification), tissue turnover rates, archaeological contexts, and bison ecology to show that the high δ13C value was not likely a result of local plant consumption, bison mobility, or trade. Instead, the bison hide was likely acquired via long-distance travel to/from an area of abundant C4 grasses far to the south or east. Expansive landscape knowledge gained through long-distance associations would have allowed Promontory caves inhabitants to make well-informed decisions about directions and routes of movement for a territorial shift, which seems to have occurred in the late thirteenth century.

Recognition of n-alkyl and isoprenoid algaenans in marine sediments by stable carbon isotopic analysis of pyrolysis products of kerogens

1998 ◽  
Vol 28 (3-4) ◽  
pp. 179-194 ◽  
Author(s):  
Ingeborg M Höld ◽  
Stefan Schouten ◽  
Heidy M.E van Kaam-Peters ◽  
Jaap S Sinninghe Damsté
Keyword(s):  
Marine Sediments ◽  
Isotopic Analysis ◽  
Stable Carbon ◽  
Pyrolysis Products ◽  
Carbon Isotopic

A new method for carbon isotopic analysis of protein

Science ◽  
1991 ◽  
Vol 251 (4993) ◽  
pp. 552-554 ◽  
Author(s):  
D. Nelson
Keyword(s):  
Isotopic Analysis ◽  
New Method ◽  
Carbon Isotopic

Stable Carbon Isotopic Analysis of Low-Level Methane in Water and Gas

1997 ◽  
Vol 69 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Francis J. Sansone ◽  
Brian N. Popp ◽  
Terri M. Rust
Keyword(s):  
Isotopic Analysis ◽  
Stable Carbon ◽  
Low Level ◽  
Carbon Isotopic
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