Turbidite depositional influences on the diagenesis of Beecher's Trilobite Bed and the Hunsruck Slate; sites of soft tissue pyritization

Clicks: 4
ID: 293474
2008
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
Emerging

Ranked #357 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
Chemical signatures of enrichment of highly reactive iron, and framboid size distributions, are reported in turbidite sediments that host soft tissue pyritization (Beecher9s Trilobite Bed, Upper Ordovician, and the Hunsrück Slate, Lower Devonian). These signatures demonstrate that the sediment of Beecher9s Trilobite Bed was enriched in highly reactive iron prior to turbidite transport but that no enrichment was present in the Hunsrück Slate. Turbidite transport and re-sedimentation altered framboid size distributions. Small diameter framboids (\< 5 μm) that formed in the sediment at the pre-transport site were lost during transport due to oxidation and/or size sorting. Larger diameter framboids (∼5 --15 μm) that formed at the pre-transport site were transported without alteration. The oxidation of the original small framboid population formed highly reactive iron (oxyhydr)oxides that were reduced during post-transport suboxic diagenesis to produce porewaters rich in dissolved iron. In some turbidites a bimodal framboid population resulted where a minor population of small diameter framboids, produced by limited sulfate reduction at the post-transport site, was added to the transported large diameter population. Soft tissue pyritization in this setting was facilitated by the presence of suboxic, iron rich porewaters where dissolved sulfide formed during soft tissue decay, confining iron sulfide precipitation to the decay site.
Reference Key
openalex_W2079076591 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors R. Raiswell, Robert J. Newton, Simon H. Bottrell, P. M. Coburn, Derek E. G. Briggs, David P.G. Bond, Simon W. Poulton
Journal american journal of science
Year 2008
DOI
10.2475/02.2008.01
URL
https://ajs.scholasticahq.com/article/61736.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.