Book ChapterDOI
Sediment Organic Matter
Philip A. Meyers,Jane L. Teranes +1 more
- pp 239-269
TLDR
The organic matter content of lake sediments provides a variety of indicators, or proxies, that can be used to reconstruct paleoenvironments of lakes and their watersheds and to infer histories of regional climate changes as mentioned in this paper.Abstract:
The organic matter content of lake sediments provides a variety of indicators, or proxies, that can be used to reconstruct paleoenvironments of lakes and their watersheds and to infer histories of regional climate changes. Organic matter constitutes a minor but important fraction of lake sediments. It originates from the complex mixture of lipids, carbohydrates, proteins, and other organic matter components produced by organisms that have lived in and around the lake (e.g., Meyers, 1997; Rullkotter, 2000). As an accumulation of “geochemical fossils”, the organic matter content of lake sediments provides information that is important to interpretations of both natural and human-induced changes in local and regional ecosystems.read more
Citations
More filters
Influence of Diet On the Distribtion of Nitrogen Isotopes in Animals
Michael J. DeNiro,Samuel Epstein +1 more
TL;DR: In this article, the influence of diet on the distribution of nitrogen isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant nitrogen isotopic composition and found that the variability of the relationship between the δ^(15)N values of animals and their diets is greater for different individuals raised on the same diet than for the same species raised on different diets.
Journal ArticleDOI
Applications of organic geochemistry to paleolimnological reconstructions: a summary of examples from the Laurentian Great Lakes
TL;DR: The organic matter content of lake sediments contains information that helps to reconstruct past environmental conditions, evaluate histories of climate change, and assess impacts of humans on local ecosystems as discussed by the authors, and serve as proxies of organic matter delivery and accumulation.
Book
Pollution of Lakes and Rivers: A Paleoenvironmental Perspective
TL;DR: The second edition of the Rosetta Stone has been published by as discussed by the authors, which is used to calibrate indicators to environmental variables using surface-sediment training sets, such as ozone depletion, acid rain, and climatic warming.
Journal ArticleDOI
Classification of lacustrine sediments based on sedimentary components
TL;DR: In this article, a flexible sediment classification scheme for modern and ancient lake sediments employed at the Limnological Research Center, University of Minnesota is presented, which emphasizes the macroscopic structure and microscopic components of the sedimentary matrix (clastic, chemical and biological).
Journal ArticleDOI
Loss on ignition: a qualitative or quantitative method for organic matter and carbonate mineral content in sediments?
Juan I. Santisteban,Rosa Mediavilla,Enrique López-Pamo,Cristino J. Dabrio,M. Blanca Ruiz Zapata,M. José Gil García,Silvino Castaño Castaño,Pedro E. Martínez-Alfaro +7 more
TL;DR: In this paper, loss on ignition (LOI) has been widely used as a method to estimate the amount of organic matter and carbonate mineral content (and indirectly of organic and inorganic carbon) in sediments.
References
More filters
Journal ArticleDOI
Influence of diet on the distribution of nitrogen isotopes in animals
Michael J. DeNiro,Samuel Epstein +1 more
TL;DR: In this article, the influence of diet on the distribution of nitrogen isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant nitrogen isotopic composition and found that the variability of the relationship between the δ(15)N values of animals and their diets is greater for different individuals raised on the same diet than for the same species raised on different diets.
Influence of Diet On the Distribtion of Nitrogen Isotopes in Animals
Michael J. DeNiro,Samuel Epstein +1 more
TL;DR: In this article, the influence of diet on the distribution of nitrogen isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant nitrogen isotopic composition and found that the variability of the relationship between the δ^(15)N values of animals and their diets is greater for different individuals raised on the same diet than for the same species raised on different diets.
Journal ArticleDOI
Stable isotopes in ecosystem studies
Bruce J. Peterson,Brian Fry +1 more
TL;DR: The use of stable isotopes to solve biogeochemical problems in ecosystem analysis is increasing rapidly because stable isotope data can contribute both source-sink (tracer) and process information: the elements C, N, S, H, and all have more than one isotope, and isotopic compositions of natural materials can be measured with great precision with a mass spectrometer as mentioned in this paper.
Journal ArticleDOI
Stepwise enrichment of 15N along food chains: Further evidence and the relation between δ15N and animal age
Masao Minagawa,Eitaro Wada +1 more
TL;DR: The isotopic composition of nitrogen was measured in marine and fresh-water animals from the East China Sea, The Bering Sea, Lake Ashinoko and Usujiri intertidal zone as mentioned in this paper.
Journal ArticleDOI
Determination of carbonate and organic matter in calcareous sediments and sedimentary rocks by loss on ignition; comparison with other methods
TL;DR: In this article, a modified ignition loss method is described for determining organic and carbonate carbon in calcareous sedimentary materials using equipment found in most laboratories and has been found to equal or excel the accuracy and precision of other methods tested and has the advantage of being considerably faster if large numbers of samples are to be analyzed.
Related Papers (5)
Preservation of elemental and isotopic source identification of sedimentary organic matter
IntCal13 and Marine13 radiocarbon age calibration curves 0-50,000 years cal BP
Paula J. Reimer,Edouard Bard,Alex Bayliss,J. Warren Beck,Paula G Blackwell,Christopher Bronk Ramsey,Caitlin E. Buck,Hai Cheng,R. Lawrence Edwards,Michael Friedrich,Pieter Meiert Grootes,Thomas P. Guilderson,Haflidi Haflidason,Irka Hajdas,Christine Hatté,Timothy J Heaton,Dirk L. Hoffmann,Alan G. Hogg,Konrad A Hughen,K Felix Kaiser,Bernd Kromer,Sturt W. Manning,Mu Niu,Ron W Reimer,David Richards,E. Marian Scott,John Southon,Richard A. Staff,Christian Turney,Johannes van der Plicht +29 more