Geological setting of chemosynthetic communities in the Monterey Fan Valley system
Deep Sea Research Part A, Oceanographic Research Papers
By: R.W. Embley, S.L. Eittreim, C.H. McHugh, W. R. Normark, G.H. Rau, Barbara Hecker, A.E. DeBevoise, H. Gary Greene, William B. F. Ryan, C. Harrold, and C. Baxter
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Abstract
Alvin dives and camera tows within the "meander area" of the Monterey and Ascension Fan Valleys have located nine chemosynthetic communities over depths ranging from 3000 to 3600 m over a distance of 55 km. Most of the observed communities consist largely of Calyptogena phaseoliformis, but Solemya (species unknown) and a pogonophoran (genus Polybrachia), have also been identified. The ??13C values (-35.0 to -33.6 per mil) and the presence of APS reductase and ATP sulfurylase in the C. phaseoliformis tissue is consistent with sulfur chemoautotrophy. Two reduced organic matter sources for the H2S are proposed: (1) older beds exposed by the deep erosion (up to 400 m) of the fan valleys and (2) concentrations of anaerobically decomposd organic matter buried in the valley floor. ?? 1990.
Suggested Citation
Embley, R., Eittreim, S., McHugh, C., Normark, W.R., Rau, G., Hecker, B., DeBevoise, A., Greene, H., Ryan, W., Harrold, C., Baxter, C., 1990, Geological setting of chemosynthetic communities in the Monterey Fan Valley system: Deep Sea Research Part A, Oceanographic Research Papers, v. 37, no. 11, p. 1651-1667, https://doi.org/10.1016/0198-0149(90)90069-8.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geological setting of chemosynthetic communities in the Monterey Fan Valley system |
| Series title | Deep Sea Research Part A, Oceanographic Research Papers |
| DOI | 10.1016/0198-0149(90)90069-8 |
| Volume | 37 |
| Issue | 11 |
| Year Published | 1990 |
| Language | English |
| Publisher | Elsevier |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Deep Sea Research Part A, Oceanographic Research Papers |
| First page | 1651 |
| Last page | 1667 |