Author : Alejandra P. Jimenez
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (911 download)
Book Synopsis A Study of Early Holocene Paleoprecipitation Record from Freshwater River Mussel Shell at the Cooper's Ferry Site, Idaho and Their Archaeological Implications by : Alejandra P. Jimenez
Download or read book A Study of Early Holocene Paleoprecipitation Record from Freshwater River Mussel Shell at the Cooper's Ferry Site, Idaho and Their Archaeological Implications written by Alejandra P. Jimenez and published by . This book was released on 2015 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of [delta]18O held in freshwater bivalve shell carbonate are useful for reconstructing paleoclimates and environmental changes and inform interpretations about past human behavior and periods of culture change. Stable isotope analyses ([delta]18O) of Margaritifera falcata shells found at the Cooper's Ferry archaeological site located in the lower Salmon River canyon of Idaho were used to determine paleoclimate conditions during the early Holocene. In a previous study, a limited number of mussel shell [delta]18O values suggested early Holocene climates were generally moister. This thesis presents a higher-resolution isotope record that reveals far greater variation and extremes in precipitation values from 9,000 to 8,000 RYBP. By comparing prehistoric mussel shell isotope data to isotope records from modern shell and modern rainfall records this study provides a baseline against which prehistoric paleoprecipitation conditions can be evaluated. By examining the patterns in which archaeological shell [delta]18O reflects variability in regional climate conditions, human-environmental interactions can then be considered in order to make predictions about foraging behaviors.