(Table 1) Total organic carbon, calcium carbonate and nitrogen at DSDP Holes 80-559 and 80-550B
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1985
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| _version_ | 1867170958429650944 |
|---|---|
| author | Waples, Douglas W |
| author_facet | Waples, Douglas W |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Concentrations of organic and inorganic nitrogen have been measured on Leg 80 sediments. The inorganic nitrogen content is relatively constant, 0.02-0.03 wt.%. Because most of the inorganic nitrogen occurs as NH3 or (NH4)+ fixed on clays, clay-poor sediments have lower inorganic nitrogen contents. Organic nitrogen content depends upon both the type and the quantity of organic matter present. In Leg 80 sediments, woody kerogens contain much less organic nitrogen than do kerogens of algal origin. Furthermore, pelagic samples of low organic carbon content have less organic nitrogen than predicted, because of loss during diagenesis. DSDP shipboard analytical procedures do not distinguish between organic and inorganic nitrogen. Great caution must therefore be exercised in interpreting C/N ratios. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_808054 |
| institution | PANGAEA |
| language | en |
| publishDate | 1985 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Total organic carbon, calcium carbonate and nitrogen at DSDP Holes 80-559 and 80-550B Waples, Douglas W 80-549; 80-550B; Calcium carbonate; Calculated; Carbon, organic, total; Carbonate bomb (Müller & Gastner, 1971); Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyzer CHN (Hewlett-Packard 185-B); Event label; Glomar Challenger; Leg80; Nitrogen, inorganic; Nitrogen, organic; Nitrogen, total; North Atlantic/PLAIN; North Atlantic/SPUR; Sample code/label Concentrations of organic and inorganic nitrogen have been measured on Leg 80 sediments. The inorganic nitrogen content is relatively constant, 0.02-0.03 wt.%. Because most of the inorganic nitrogen occurs as NH3 or (NH4)+ fixed on clays, clay-poor sediments have lower inorganic nitrogen contents. Organic nitrogen content depends upon both the type and the quantity of organic matter present. In Leg 80 sediments, woody kerogens contain much less organic nitrogen than do kerogens of algal origin. Furthermore, pelagic samples of low organic carbon content have less organic nitrogen than predicted, because of loss during diagenesis. DSDP shipboard analytical procedures do not distinguish between organic and inorganic nitrogen. Great caution must therefore be exercised in interpreting C/N ratios. |
| title | (Table 1) Total organic carbon, calcium carbonate and nitrogen at DSDP Holes 80-559 and 80-550B |
| topic | 80-549; 80-550B; Calcium carbonate; Calculated; Carbon, organic, total; Carbonate bomb (Müller & Gastner, 1971); Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyzer CHN (Hewlett-Packard 185-B); Event label; Glomar Challenger; Leg80; Nitrogen, inorganic; Nitrogen, organic; Nitrogen, total; North Atlantic/PLAIN; North Atlantic/SPUR; Sample code/label |
| url | https://doi.org/10.1594/PANGAEA.808054 |