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Particle-size related, mineral magnetic source sediment linkages in the Rhode River catchment, Maryland, USA

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>12/1985
<mark>Journal</mark>Journal of the Geological Society
Issue number6
Number of pages12
Pages (from-to)1035-1046
Publication StatusPublished
<mark>Original language</mark>English


Characterization of both the source materials and the bottom sediments of an estuary by magnetic characters, on a particle size basis, allows the source of the bottom sediments to be determined and indicates a shift in sediment sources, corresponding to changing land-use patterns. The major source of the sediments in the lower part of cores from the middle of the estuary is eroding shorelines. Soil-derived particulates, from the uplands, dominate the upper part of the cores. This change in source occurred in the early part of the 19th century. The magnetic character of the most recent sediments suggests a progressive depletion, through time, of the upland soils in the finest fractions.