Book ChapterDOI
Chapter Fourteen Elemental Proxies for Palaeoclimatic and Palaeoceanographic Variability in Marine Sediments: Interpretation and Application
Stephen E. Calvert,Thomas F. Pedersen +1 more
- Vol. 1, pp 567-644
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TLDR
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.Abstract:
Publisher Summary This chapter discusses the elemental proxies for palaeoclimatic and palaeoceanographic variability in marine sediments. Physical and biological processes during deposition coupled with post-depositional chemical reactions yield a complex component mixture that can provide significant palaeoceanographic and palaeoclimatic information to complement and strengthen interpretations derived from the study of microfossils and the isotopic compositions of sedimentary components. The chapter reviews the application of sedimentary geochemistry to the reconstruction of climatic and oceanographic changes over the Cenozoic, with emphasis on the Late Pleistocene. Records from both pelagic regimes and ocean margin provinces are used to show how information on both ocean conditions and terrestrial climates can be assembled from the major, minor and trace element composition of sea-floor deposits. The chapter provides background sedimentary information, and describes some common data manipulation techniques that are used to construct and study palaeoclimatic and palaeoceanographic records in marine sediments.read more
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Journal ArticleDOI
Calibration of XRF core scanners for quantitative geochemical logging of sediment cores: Theory and application
Gert Jan Weltje,Rik Tjallingii +1 more
TL;DR: In this paper, a log-ratio calibration model for XRF core scanners is proposed, which is derived from a combination of XRF-spectrometry theory, principles of compositional data analysis, and empirical evidence.
Journal ArticleDOI
Total organic carbon, organic phosphorus, and biogenic barium fluxes as proxies for paleomarine productivity
Shane D. Schoepfer,Jun Shen,Jun Shen,Hengye Wei,R. V. Tyson,Ellery D. Ingall,Thomas J. Algeo,Thomas J. Algeo +7 more
TL;DR: In this paper, the accumulation rates of three commonly used proxies for productivity from a set of primarily Quaternary sediment cores at 94 marine sites, compiled from 37 published sources, were evaluated for total organic carbon, organic phosphorus, and biogenic barium (Babio).
Journal ArticleDOI
Links between iron supply, marine productivity, sea surface temperature, and CO2 over the last 1.1 Ma
Alfredo Martínez-García,Antoni Rosell-Melé,Antoni Rosell-Melé,Walter Geibert,Walter Geibert,Walter Geibert,Rainer Gersonde,Pere Masqué,Vania Gaspari,Carlo Barbante +9 more
TL;DR: In this article, the authors present a new multiproxy data set of sea surface temperatures (SST), dust and iron supply, and marine export productivity from the marine sediment core PS2489-2/ODP Site 1090 located in the subantarctic Atlantic, that allow them to evaluate various hypotheses on the role of the Southern Ocean (SO) in modulating atmospheric CO2 concentrations back to 11 Ma.
Journal ArticleDOI
A marine biogeochemical perspective on black shale deposition
TL;DR: In this paper, the authors used the V:Mo ratio in the marine fraction of the Kimmeridge Clay Formation to hindcast the hydrography and biogeochemical conditions of deposition of a black shale of Late Jurassic age from its trace metal and organic carbon content.
Journal ArticleDOI
Tracing bottom water oxygenation with sedimentary Mn/Fe ratios in Lake Zurich, Switzerland
Sebastian Naeher,Sebastian Naeher,Adrian Gilli,Ryan P. North,Ryan P. North,Yvonne Hamann,Carsten J. Schubert +6 more
TL;DR: In this paper, the authors studied the redox dynamics of manganese (Mn) in the sediment of Lake Zurich using precise sediment core age models, monthly long-term oxygen (O 2 ) monitoring data of the water column (1936-2010) and high-resolution XRF core scanning.
References
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The continental crust: Its composition and evolution
TL;DR: In this paper, the authors describe the composition of the present upper crust and deal with possible compositions for the total crust and the inferred composition of lower crust, and the question of the uniformity of crustal composition throughout geological time is discussed.
Journal ArticleDOI
Early Proterozoic climates and plate motions inferred from major element chemistry of lutites
H.W. Nesbitt,Grant M. Young +1 more
TL;DR: The early Proterozoic Huronian Supergroup of the north shore of Lake Huron (Fig. 1) is a thick succession of sedimentary and volcanic rocks deposited between about 2,500 and 2,100 Myr ago as discussed by the authors.
Journal ArticleDOI
Distribution of the Elements in Some Major Units of the Earth's Crust
Karl K. Turekian,K. H. Wedepohl +1 more
TL;DR: A table of abundances of the elements in the various major units of the Earth's lithic crust with a documentation of the sources and a discussion of the choice of units and data is presented in this article.
Journal ArticleDOI
A 17,000-year glacio-eustatic sea level record: influence of glacial melting rates on the Younger Dryas event and deep-ocean circulation
TL;DR: In this paper, a global oxygen isotope record for ocean water has been calculated from the Barbados sea level curve, allowing separation of the ice volume component common to all isotope records measured in deep-sea cores.
Book
Using Geochemical Data : Evaluation, Presentation, Interpretation
TL;DR: In this article, the authors present a method to discriminate between Tectonic Environments using data from Geochemical Data and Radiogenic Isotopes and Isotope Data.
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