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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)


Journal of Sedimentary Petrology
Vol. 44 (1974)No. 2. (June), Pages 390-408

Chemical, Mineralogic, and Palynologic Character of the Upper Wisconsinan-Lower Holocene Fill in Parts of Hudson, Delaware, and Chesapeake Estuaries

James P. Owens, Karl Stefansson, Leslie A. Sirkin


Studies of cores from three major estuaries in the middle Atlantic region (Hudson River, Delaware Bay, and Chesapeake Bay) reveal the following: (1) much of the upper Wisconsinan-Holocene estuarine facies consists of organic-rich fine-grained clasts; (2) major aggradation of this facies began about 11,000 radiocarbon years B.P. and possibly somewhat earlier; (3) chemical and semi-quantitative analyses of estuarine facies samples from the three areas show the facies are very similar, whereas a lacustrine fades in the Hudson estuary has a significantly different chemical composition than the estuarine facies; (4) the clay mineralogy in the estuarine facies in all three areas is similar (all clay-types are present--kaolinite, illite, montmorillonite, and chlorite); and (5) playnologic st dies indicate that the forests bordering the estuaries were progressively more aboreal from south to north during the period of aggradation of the estuaries.

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