Quaternary dating methods wiley

In contrast, sedimentation rates have remained relatively constant over this period, despite recent land use change in the catchment. Results of this study suggest that recent increases in development pressure have yet to further influence sedimentation in Lake Sibaya, thus providing values against which future monitoring efforts can be compared. Population structure of an invasive parthenogenetic gastropod in coastal lakes and estuaries of northern Kwa Zulu–Natal, South Africa. Review of Palaeobotany and Palynology 152, 113–128. Cores were dated using C, and dates were used to calculate bulk sediment accumulation rates and nutrient concentrations over the last 250 years. Inorganic and organic sinking particulate phosphorus fluxes across the oxic/anoxic water column of Cariaco Basin, Venezuela. In the western section of the lake, stratigraphic variations in total carbon, nitrogen and phosphorus increased abruptly to near-constant levels around the beginning of the 20th century, a trend that appears to be consistent with the onset of human settlement and land clearance in the catchment. Using carbon isotopes of bulk sedimentary organic matter to reconstruct the history of nutrient loading and eutrophication in Lake Erie.

Palaeoecological Events during the last 15000 years. Pollen Records of Late-Quaternary North American Sediments. Geomorphic Responses to Climatic Change, Oxford University Press. Packrat Middens The Last 40,000 years of Biotic Change. Paleoclimatology: Reconstructing Climates of the Quaternary.

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