Skip to Main Content
Book Chapter

Hydrogenous sediment

By
D. Z. Piper
D. Z. Piper
Search for other works by this author on:
G. R. Heath
G. R. Heath
Search for other works by this author on:
Published:
January 01, 1989

Abstract

The hydrogenous fraction of sediment has been defined by Goldberg (1963) as “composed of those solids which inorganically precipitate from sea water.” As it is often difficult to distinguish between the authigenic fraction of hydrogenous origin and a second authigenic fraction formed during early sediment diagenesis (i.e., diagenesis in the upper few 10s of centimeters of sediment), we have expanded the discussion to include the solidsthat precipitate from pore water of the surface sediment even when such reactions involve the diagenetic alteration of a particulate precursor rather than merely the precipitation of dissolved species.

Evidence for these reactions has come from the analysis of pore waters (Gieskes and others, 1975) as well as of the solid products. However, interpretations have often been hampered by inherent problems. For example, pore water of rapidly accumulating shallow-water sediment exhibits strong elemental variations, suggesting dynamic reactions with the enclosing solid phases (Sayles and others, 1973). Unfortunately, the reactive solid products commonly constitute only a minor fraction of the total sediment, their composition and even their presence being masked by a largely nonreactive detrital component (Price, 1976). Within the slowly accumulating sediment of the pelagic environment, the case is reversed. The hydrogenous component can represent a major fraction of the bulk sediment, but reactions are slow enough that elemental gradients within the pore water are diminished by diffusion. Despite these problems, enormous progress has been made in recent years, owing to a vast improvement in analytical techniques.

You do not currently have access to this article.

Figures & Tables

Contents

DNAG, Geology of North America

The Eastern Pacific Ocean and Hawaii

E. L. Winterer
E. L. Winterer
Scripps Institution of Oceanography La Jolla, California 92093
Search for other works by this author on:
Donald M. Hussong
Donald M. Hussong
University of Hawaii Department of Geology and Geophysics Honolulu, Hawaii 96822
Search for other works by this author on:
Robert W. Decker
Robert W. Decker
4087 Silver Bar Road Mariposa, California 95338
Search for other works by this author on:
Geological Society of America
Volume
N
ISBN electronic:
9780813754659
Publication date:
January 01, 1989

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal