| http://www.w3.org/ns/prov#value | - What is the environmental significance of isotopic signatures recorded by ???proxy??? materials from lacustrine sediments and terrestrial soils and sediments? ???Proxies??? include ??? but are not limited to ??? ostracodes, clams, gastropods, bulk organic matter, pollen and other palynomorphs, plant macromolecules (e.g., cellulose), biogenic silica (phytoliths, diatoms), bone, teeth, hair, feather
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