Publication Date:
2023-06-27
Description:
Selected parts of ten frozen core samples from Holes 482A, 482B, 483A, and 485A, Leg 65 of the Deep Sea Drilling Project (DSDP), were analyzed for residual carbohydrates in order to determine the provenance and history of the organic material in the sediments. The samples, which represented silty-clay, shale, and nannofossil- chalk sediments, were analyzed for water-soluble monosaccharides, acid-soluble monosaccharides, and for starch and cellulose.
Most samples yielded positive results for acid-extractable (polymeric) arabinose, fucose, xylose, mannose, galactose, and glucose. Amylose was detected in seven of the samples, whereas cellulose was found in only one. Possible explanations for the relatively high levels of free sugars are suggested in the conclusions to this chapter.
Keywords:
65-482A; 65-482B; 65-483B; 65-485A; Arabinose; Carbohydrates, total; Compounds; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Epoch; Event label; Fucose; Galactose; Glomar Challenger; Glucose; Latitude of event; Leg65; Longitude of event; Mannose; Nannofossil zone; North Pacific/Gulf of California/CONT RISE; North Pacific/Gulf of California/SEDIMENT POND; Sample code/label; see reference(s); Xylose
Type:
Dataset
Format:
text/tab-separated-values, 412 data points
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