Computer Science
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977gecoa..41..765m&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 41, Issue 6, pp.765-776
Computer Science
43
Scientific paper
Analyses of organic carbon, total nitrogen, and inorganically bound ammonium (exchangeable and fixed ammonium) in two oxic deep-sea sediment cores from the Central Pacific Ocean revealed insufficiently high inorganic ammonium contents of these sediments to explain the low C/N ratios, although representing 20-45% of the total nitrogen. Both, organic carbon/total nitrogen ratios (ranging from 3.9-1.3) and organic carbon/organic nitrogen ratios (5.6-1.9) decrease with increasing sediment depth, the latter indicating a real enrichment of organic nitrogen compounds during diagenesis relative to total organic matter. Organic matter/alumina relationships indicate that this unusual preservation of organic nitrogen compounds is probably caused by sorption to clay minerals protecting them against bacterial attack.
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