GEOG 1265 Lecture Notes - Lecture 11: Palynology, Biogeography, Pollination
20 Feb 2017
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How do we study the quaternary: proxy data. Sediment accumulation in lakes and wetlands applies to a variety of locations: sediment cores can be analyzed for a variety of proxies, including different (cid:498)fossils(cid:499, among the important proxies is fossil pollen analysis. Sediment cores: accessing the archive: grand mesa. Sediment sampling: in laboratories, we can split the core and sample it for a variety of proxies. Pollen analysis: one of the most valuable biological proxies, used for reconstructing terrestrial conditions, fossil pollen analysis (palynology) Pollen grains are the male reproductive cells of flowering plants and gymnosperms. Vegetation changes over time are reflected in these diagrams. Arranged with the oldest samples in each column at the bottom, and the youngest at the top. Carried in from an ice cap on top of grand mesa: organic content. Proxies from peatlands: peat, acrotelm, catotelm, fens.
