A scaling approach to spatial variability in early diagenetic processes

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• 作者：John W. Morse ; Steven F. DiMarco ; Andrew B. Hebert and Karen S. Sell
• 关键词：scaling ; sediment biogeochemistry ; diagenesis
• 刊名：Hydrobiologia
• 出版年：2003
• 出版时间：2003
• 年：2003
• 卷：494
• 期：1/3
• 页码：25-29
• 全文大小：283 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Hydrobiology
  Ecology
  
• 出版者：Springer Netherlands
• ISSN：1573-5117

文摘

The traditional approach to understanding early diagenetic processes in sediments has generally been to analyze pore water and solid phases from a single core on depth scales of centimeters. The resulting data is then modeled using the approximations of lateral homogeneity and steady-state conditions. However, the continuing advancement of the field of benthic biogeochemistry and development of new microelectrode analytic techniques are clearly demonstrating that in many sedimentary environments a more sophisticated approach to measure the spatial and temporal variability is necessary. Although no one approach is appropriate for all situations, a scaling method is presented, with examples, in this study for determining appropriate sampling intervals in time and space that has considerable utility for investigating early changes in sediment geochemistry in complex natural systems. This approach is derived from scaling techniques that have been developed by physical oceanographers for the study of processes in the water column where many analogous sampling problems are encountered.