Journal ArticleDOI
CN ratios in Pacific deep-sea sediments: Effect of inorganic ammonium and organic nitrogen compounds sorbed by clays
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TLDR
In this article, an analysis 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.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1977-06-01. It has received 658 citations till now. The article focuses on the topics: Organic matter & Total organic carbon.read more
Citations
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Journal ArticleDOI
Preservation of elemental and isotopic source identification of sedimentary organic matter
TL;DR: The amount and type of organic matter in the sediments of lakes and oceans contribute to their paleoenvironmental and paleoclimatological records as discussed by the authors, but only a small fraction of the initial aquatic organic matter survives destruction and alteration during sinking and sedimentation.
Journal ArticleDOI
Organic geochemical proxies of paleoceanographic, paleolimnologic, and paleoclimatic processes
TL;DR: In this article, the organic matter content of sediments is inferred from bulk properties such as elemental compositions, carbon and nitrogen stable isotope ratios, Rock-Eval pyrolysis data, and organic petrography.
Journal ArticleDOI
Surface area control of organic carbon accumulation in continental shelf sediments
TL;DR: The relationship between organic carbon (OC) and grain size found in most continental shelf sediments is reinterpreted in terms of the surface area of the sediments in this article.
Journal ArticleDOI
Productivity, sedimentation rate, and sedimentary organic matter in the oceans—I. Organic carbon preservation
P.J. Müller,E. Suess +1 more
TL;DR: In this paper, the authors compare the rates of accumulation of organic carbon in surface marine sediments from the central North Pacific, the continental margins off northwest Africa, northwest and southwest America, the Argentine Basin, and the western Baltic Sea with primary production rates and show that the fraction of primary produced organic carbon preserved in the sediments is universally related to the bulk sedimentation rate.
Journal ArticleDOI
Lacustrine sedimentary organic matter records of Late Quaternary paleoclimates
TL;DR: For example, despite the extensive early diagenetic losses of organic matter in general and of some of its important biomarker compounds in particular, bulk identifiers appear to undergo minimal alteration after sedimentation as discussed by the authors.
References
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Journal ArticleDOI
The geochemistry of the stable carbon isotopes
TL;DR: A survey of the variation of the ratio C13/C12 in nature can be found in this paper, where Urey and his co-workers used two complete feed systems with magnetic switching to determine small differences in isotope ratios between samples and a standard gas.
Journal ArticleDOI
Determination and Isotope-Ratio Analysis of Different Forms of Nitrogen in Soils: 3. Exchangeable Ammonium, Nitrate, and Nitrite by Extraction-Distillation Methods1
J. M. Bremner,D. R. Keeney +1 more
TL;DR: In this article, a method for determining exchangeable ammonium, nitrate, and nitrite in soils is described, which involves extraction of the soil sample with 2M KCl (10 ml/g of soil) and analysis of the extract by steam-distillation methods in which magnesium oxide is used for distillation of ammonium.
Book ChapterDOI
Biogeochemistry of Stable Carbon Isotopes
TL;DR: In this paper, a modification in the Nier-type mass spectrometer and a refinement in instrumentation techniques by McKinney et al. [3] finally initiated stable isotope studies of the type that are discussed in this review.
Related Papers (5)
Preservation of elemental and isotopic source identification of sedimentary organic matter
Organic geochemical proxies of paleoceanographic, paleolimnologic, and paleoclimatic processes
Productivity, sedimentation rate, and sedimentary organic matter in the oceans—I. Organic carbon preservation
P.J. Müller,E. Suess +1 more