Browsing by Subject "Inorganic carbon"

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Organic and inorganic carbon in the recent sediments of the open Gulf, barrier island and bay environments, Mustang Island, Texas
(1960) Jones, Darrell K., 1935-; Kornicker, Louis S., 1919-2018
The sediment at both surface and one-foot depths in cores from the Gulf of Mexico, Mustang Island, and Corpus Christi Bay Texas, was analyzed by a wet combustion method to determine the per cent of carbon by dry weight in the organic fraction (organic carbon) and in the carbonate fraction (inorganic carbon). The statistical "t" test showed a significant difference (P = 0.05) between the mean per cent organic carbon content of the surface sediments from 1) Gulf (0.52%) and island (0.17%) and 2) island (0.17%) and bay (0.58%) and of one-foot sediments from 1) Gulf (0.29%) and island (0.11%) and 2) island (0.11%) and bay (0.44%). A significant difference was also found between the means of the per cent of carbonate carbon in surface sediments from 1) Gulf (0.50%) and island (0.09%) and 2) island (0.09%) and bay (0.68%) and in sediments from Gulf (0.32%) and bay (0.68%). A comparison of the means of the per cent of carbonate carbon in sediments at the surface (0.50%) and one-foot depths (0.32%) of all Gulf cores showed a significant difference at the 0.05 probability level. The organic carbon and inorganic carbon content of the sediment may be useful in distinguishing between Gulf and barrier island, and bay and barrier island sediments in the geologic record, but probably not for distinguishing between Gulf and bay environments