Bioturbation and the early diagenesis of carbon and sulfur

Clicks: 4
ID: 292783
1985
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #504 of 8,486 articles by views in american journal of science

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 8,486 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
The expected amounts of organic matter decomposition and reduced sulfur (mainly pyrite) formation over selected sediment depth ranges have been calculated, from /sup 35/S measurements of in situ rates of sulfate reduction, for four anoxic sediment sites in Long Island Sound. Measured changes over the same depth ranges are found to be less than those calculated, and deviations correlate well with the degree of bioturbational and other enhanced transport activity in the sediment. This means that extra organic matter is added to sediment layers at depth by bioturbation. It also means that the amount of pyrite formed during burial records only a fraction of the total H/sub 2/S produced by bacterial sulfate reduction. The remaining H/sub 2/S is lost via the oxidation of reduced sulfur compounds by O/sub 2/ mixed into the sediment by the benthos and, to a lesser extent, via enhanced H/sub 2/S transport resulting from benthic irrigation. For one unusually organic-rich site (BH), H/sub 2/S loss is also probably due to stripping by upward-moving methane bubbles.
Reference Key
openalex_W2077140170 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Robert A. Berner, Joseph T. Westrich
Journal american journal of science
Year 1985
DOI
10.2475/ajs.285.3.193
URL
https://ajs.scholasticahq.com/article/60337.pdf
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.