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carbonate/nitrogen ratios

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<b>Carbon</b>&#x2F;<b>nitrogen</b> <b>ratios</b> with depth in the GMK01-SOIL1 and -SOIL2 profiles. T...
Published: 01 August 2004
Fig. 8. Carbon/nitrogen ratios with depth in the GMK01-SOIL1 and -SOIL2 profiles. The boxed area near the 8-m depth corresponds to low C/N ratios that represents the depth to which we estimate that excess feedlot N has penetrated.
Journal Article
Published: 01 June 1971
Journal of Sedimentary Research (1971) 41 (2): 537-548.
... carbon with carbon-nitrogen ratios ranging from 7 to 13 in the surface sediment. Organic carbon and nitrogen decreased sharply from the surface down to about 10 cm in each core. The decrease is due partly to mineralization of organic matter by bottom organisms and partly to an increasing input of organic...
Series: AAPG Special Publication
Published: 01 January 1942
DOI: 10.1306/SV12343C7
EISBN: 9781629812496
..., color, volatility, relative volatility, nitrogen-reduction ratio, oxidation factor, carbon-nitrogen ratio, and a summary table ...
Journal Article
Journal: Geology
Published: 01 October 2009
Geology (2009) 37 (10): 875-878.
... designed to detect interstellar grains in meteorites, to reexamine the geochemical signature of Reduviasporonites . Organic chemistry, carbon and nitrogen isotopes, and carbon/nitrogen ratios are consistent with a fungal origin. The use of this microfossil as a marker of terrestrial ecosystem collapse...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 02 May 2019
GSA Bulletin (2019)
...Jeffrey S. Munroe; Benjamin J.C. Laabs Twenty-one sediment cores were obtained from 20 lakes in the Uinta Mountains, Utah, USA. Depth-age models were developed using 14 C dating, and sediments were analyzed for loss-on-ignition (LOI), carbon-nitrogen ratio (C:N), and grain size distribution...
Journal Article
Published: 01 April 1963
Micropaleontology (1963) 9 (2): 117-170.
...-silled basin deposits in the Mohnian part of the Monterey Shale, also with turbidites. One planktonic foraminiferal zone is recognized for the middle Eocene, and 3 were established for the Miocene. Carbonate/nitrogen ratios were useful in selecting the division between the nonmarine Sespe Formation...
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, C&#x2F;N <b>ratios</b>, and δ 15 N v...
Published: 01 September 2002
FIGURE 3 Organic carbon, total nitrogen, calcium carbonate, C/N ratios, and δ 15 N values at different depths in sediment core I of Mansar lake.
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, and C&#x2F;N <b>ratios</b> at differ...
Published: 01 September 2002
FIGURE 4 Organic carbon, total nitrogen, calcium carbonate, and C/N ratios at different depths in core II of Mansar lake.
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, C&#x2F;N <b>ratios</b>, and δ 15 N r...
Published: 01 September 2002
FIGURE 5 Organic carbon, total nitrogen, calcium carbonate, C/N ratios, and δ 15 N ratios at different depths in core III of Mansar lake.
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, and C&#x2F;N <b>ratios</b> at differ...
Published: 01 September 2002
FIGURE 6 Organic carbon, total nitrogen, calcium carbonate, and C/N ratios at different depths in Surinsar core I.
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, C&#x2F;N <b>ratios</b>, and δ 15 N v...
Published: 01 September 2002
FIGURE 7 Organic carbon, total nitrogen, calcium carbonate, C/N ratios, and δ 15 N values at different depths in Surinsar core II.
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Organic <b>carbon</b>, total <b>nitrogen</b>, calcium <b>carbonate</b>, and C&#x2F;N <b>ratios</b> at differ...
Published: 01 September 2002
FIGURE 8 Organic carbon, total nitrogen, calcium carbonate, and C/N ratios at different depths in Surinsar core III.
Journal Article
Published: 01 July 1990
Journal of Sedimentary Research (1990) 60 (4): 608-614.
... phosphoric acid using the McCrea (1950) method, produces a contaminant mass-46 gas (nitrogen dioxide, NO 2 ). This mass-46 gas contributes to the 18 O/ 16 O ratio (mass 46/44), artificially enriching the delta 18 O value and masking the true isotope signature of the CO 2 derived from the carbonate minerals...
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FIGURE 10 —<b>Carbon</b>-to-<b>nitrogen</b> <b>ratios</b> (C:N) and <b>nitrogen</b> isotope values for ...
in > PALAIOS
Published: 01 February 2002
FIGURE 10 —Carbon-to-nitrogen ratios (C:N) and nitrogen isotope values for NTC fossils (A), and C:N and carbon isotope values for NTC fossils (B). Triangles are herbivores, circles are omnivores, and squares are carnivores
Journal Article
Published: 01 November 2000
European Journal of Mineralogy (2000) 12 (6): 1283-1300.
.... Burke for his editorial help. Brines and associated nitrogen-bearing inclusions from the Tatra Mts. only seldom exhibit the features typical of immiscible separation of an initially homogeneous fluid (inconsistent phase ratios and presence of N 2 -bearing carbonic liquid in brine inclusions...
FIGURES | View All (7)
Journal Article
Published: 01 October 1977
Canadian Journal of Earth Sciences (1977) 14 (10): 2402-2413.
... Superior > Lake Huron > Georgian Bay.The organic carbon: total nitrogen (C/N) ratios averaged 10.2 in the surface sediments with a range of 5.1 to 66.0. The lowest ratios were found in the depositional basins, with the exception of Lake St. Clair. The magnitude of the C/N ratios was related...
Journal Article
Published: 01 January 1998
Bulletin de la Société Géologique de France (1998) 169 (1): 109-114.
... processes of microbial decomposition. Collagen was extracted from sterilized compact bone of modern martens inoculated with a selection of soil bacteria in the order to induce decomposition. Furthermore, this study determined the amino acid composition, overall stable carbon and nitrogen isotope ratios...
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<b>Ratios</b> of stable isotopes of <b>carbon</b> and <b>nitrogen</b> in the bone tissue of Sout...
Published: 27 April 2015
Table 1 Ratios of stable isotopes of carbon and nitrogen in the bone tissue of South American sea lions from the archaeological sites of northern-central Patagonia (Río Negro and Chubut) and southern Patagonia (Santa Cruz and Tierra del Fuego
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<b>Ratios</b> of stable isotopes of <b>carbon</b> and <b>nitrogen</b> (mean±standard deviation) ...
Published: 27 April 2015
Table 2 Ratios of stable isotopes of carbon and nitrogen (mean±standard deviation) in the muscle of modern potential prey of the South American sea lion off northern-central Patagonia and southern Patagonia. * Reference: Ciancio et al. 2008
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Table 2.  Relative abundance of <b>carbon</b>, oxygen, and <b>nitrogen</b> isotope <b>ratios</b>...
Published: 01 January 2003
Table 2.  Relative abundance of carbon, oxygen, and nitrogen isotope ratios (δ 13 C, δ 18 O, and δ 15 N, expressed in ‰) in carbonate hydroxylapatite and collagen material extracted from bone (b) and tooth (t) samples collected in large mammals species from Venta Micena. The relative abundance