The Role of Tephra in Enhancing Organic Carbon Preservation in Marine Sediments
dc.contributor.author | Longman, J | |
dc.contributor.author | Palmer, MR | |
dc.contributor.author | Gernon, TM | |
dc.contributor.author | Manners, Hayley | |
dc.date.accessioned | 2019-03-27T14:33:58Z | |
dc.date.issued | 2019-05 | |
dc.identifier.issn | 0012-8252 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/13546 | |
dc.description.abstract |
Preservation of organic carbon (C org ) in marine sediments plays a major role in defining ocean-atmosphere CO 2 levels, Earth climate, and the generation of hydrocarbons. Important controls over sedimentary C org preservation include; biological productivity, C org isolation from oxidants (mainly dissolved O 2 ) in the overlying water column and sediments, and C org – mineral association in sediments. Deposition of the products of explosive volcanism (tephra) in the oceans directly enhances C org burial through all these mechanisms, and indirectly through enhanced formation of authigenic carbonate (C auth ) derived from sedimentary C org . In the modern oceans, it is suggested that tephra deposition may account for 5–10% of the C org burial flux and 10–40% of the C auth burial flux. However, during certain periods in Earth's history, extensive explosive volcanism may have led to enhanced C auth precipitation on a sufficiently large scale to influence the global ocean-atmosphere carbon cycle. Changes in tephra-related C org preservation may also have played a role in increasing C org preservation rates in local marine basins, at the oxic-anoxic boundary and enhanced the generation of hydrocarbon deposits in these settings. | |
dc.format.extent | 480-490 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.title | The Role of Tephra in Enhancing Organic Carbon Preservation in Marine Sediments | |
dc.type | journal-article | |
dc.type | Review | |
dc.type | Journal | |
plymouth.volume | 192 | |
plymouth.publication-status | Published | |
plymouth.journal | Earth-Science Reviews | |
dc.identifier.doi | 10.1016/j.earscirev.2019.03.018 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dcterms.dateAccepted | 2019-03-26 | |
dc.rights.embargodate | 2019-4-17 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1016/j.earscirev.2019.03.018 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2019-05 | |
rioxxterms.type | Journal Article/Review |