Paper Title
Some Parameters Affecting the 210pboccurrence in Sediment Cores from Araxá City, Minas Gerais State, Brazil

Abstract
Numerous studies have utilized 210Pb data as chronometers for sediment accumulation and mixing in lakes, estuarine, marsh, and coastal areas, since they provide a reliable method of dating over the last 100-150 years. As applied to limnology, the data give a measurement for evaluation of accelerated eutrophication, recent history of heavy metal pollution, influx rates for contaminants, regional erosion rates, salt marsh accretion, and sediment budgets.This paper reports a 210Pbdataset acquired at Araxá city, Minas Gerais State, Brazil,as an example of some parameters that may affect its use. Keywords - 210Pb-chronological method, Araxá city, Minas Gerais State, Brazil, Sediments composition.