Journal ArticleDOI
Phosphate regeneration from sediments of the Peru continental margin by dissolution of fish debris
TLDR
This paper showed that dissolution of phosphatic fish debris represents a mechanism for remineralization of phosphate comparable to or larger in magnitude than that by oxidative regeneration of organically bound P. This mechanism may also control widespread phosphorite formation in this area.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1981-04-01. It has received 143 citations till now. The article focuses on the topics: Phosphorite & Phosphate.read more
Citations
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Journal ArticleDOI
The phosphorus cycle, phosphogenesis and marine phosphate-rich deposits
TL;DR: In this article, a compilation of marine sedimentary phosphorus burial rates for the last 160 Myr suggests that natural variations have occurred that span one order of magnitude, which suggests that uniform interpretations with respect to the emplacement of major phosphorite deposits should be treated with caution.
Journal ArticleDOI
Sedimentary Corg:P ratios, paleocean ventilation, and Phanerozoic atmospheric pO2
Thomas J. Algeo,Ellery D. Ingall +1 more
TL;DR: In this paper, a new atmospheric pO2 model was proposed that has strong similarities to existing models based on elemental and isotopic mass balances, yet differs in some potentially significant respects.
Book ChapterDOI
Chapter Fourteen Elemental Proxies for Palaeoclimatic and Palaeoceanographic Variability in Marine Sediments: Interpretation and Application
TL;DR: In this article, the elemental proxies for palaeoclimatic and palaeoceanographic variability in marine sediments are discussed, and the application of sedimentary geochemistry to the reconstruction of climatic and oceanographic changes over the Cenozoic is discussed.
Journal ArticleDOI
Geochemistry of Peruvian near-surface sediments
Philipp Böning,Hans-Jürgen Brumsack,Michael E. Böttcher,Bernhard Schnetger,Cornelia Kriete,Jens Kallmeyer,Sven Lars Borchers +6 more
TL;DR: In this article, short sediment cores were recovered from the upper edge (UEO), within (WO) and below (BO) the oxygen minimum zone (OMZ) off Peru during cruise 147 of R/V Sonne.
Journal ArticleDOI
Early diagenesis of organic matter in Peru continental margin sediments: Phosphorite precipitation
Philip N. Froelich,Michael A. Arthur,William C. Burnett,M Deakin,V Hensley,Richard A. Jahnke,Lisa Wells Kaul,K.-H Kim,Kevin K. Roe,A Soutar,C Vathakanon +10 more
TL;DR: Pore water chemistry (total dissolved CO 2, NH 4, NO 3, NO 2, PO 4, Si(OH) 4, Ca, Mg, Fe, Mn, SO 4, H 2 S and F, and titration alkalinity) and sediment characteristics (porosity, dry bulk density and formation factors) were determined on a centimeter-scale spacing in the upper 20-40 cm of sediments under intense upwelling areas on the Peru continental shelf as discussed by the authors.
References
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Journal ArticleDOI
Early oxidation of organic matter in pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis
Philip N. Froelich,Gary P. Klinkhammer,Michael L. Bender,Nile A. Luedtke,G.R. Heath,Doug Cullen,Paul Dauphin,Doug Hammond,Blayne Hartman,Val Maynard +9 more
TL;DR: Pore water profiles of total CO 2, pH, PO 3−4, NO − 3 plus NO − 2, SO 2− 4, S 2−, Fe 2+ and Mn 2+ have been obtained in cores from pelagic sediments of the eastern equatorial Atlantic under waters of moderate to high productivity as mentioned in this paper.
Journal ArticleDOI
Photosynthesis and Fish Production in the Sea
TL;DR: The two sets of variables primary production and the associated food chain dynamics may act additively to produce differences in fish production which are far more pronounced and dramatic than the observed variability of the individual causative factors.
Journal ArticleDOI
Particulate organic carbon flux in the oceans—surface productivity and oxygen utilization
TL;DR: In this paper, an empirical relationship was established that predicts organic carbon flux at any depth in the oceans below the base of the euphotic zone as a function of the mean net primary production rate at the surface and depth-dependent consumption.