Where the Sediments Are
John K. Reed, Michael J. Oard, Peter Klevberg
Confidence in forensic natural history increases when data are simple, observable, and complete. Larger scale often helps. For continental sedimentary rock and marine sediments, the best combination of these factors would be found in assessing their global volume and distribution. Geologists developed estimates long ago, but only in recent decades have database and mapping technology combined to allow reasonably accurate global maps of continental and marine sediment. Just recently, a good estimate of the volume and average thickness of the ocean sediments became available through the GlobSed project. The volume and thickness of the continental sediments is more difficult to describe for several reasons; defining the continent-ocean boundary is one. Defining Precambrian sedimentary basins and their relationship to the Genesis Flood adds uncertainty, but the goal of defining the global distribution of Flood sediments is worth pursuing.
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