Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/148073
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | Ortiz, José E. | es_ES |
dc.contributor.author | Gómez Borrego, Ángeles | es_ES |
dc.contributor.author | Rodríguez-Gallego, Jose Luis | es_ES |
dc.contributor.author | Sánchez-Palencia, Yolanda | es_ES |
dc.contributor.author | Urbanczyk, Justyna | es_ES |
dc.contributor.author | Torres, Trinidad | es_ES |
dc.contributor.author | Domingo, Laura | es_ES |
dc.contributor.author | Estébanez, Belén | es_ES |
dc.date.accessioned | 2017-04-06T13:02:03Z | - |
dc.date.available | 2017-04-06T13:02:03Z | - |
dc.date.issued | 2016-03-02 | - |
dc.identifier.citation | Organic Geochemistry 95: 41-54 (2016) | es_ES |
dc.identifier.issn | 0146-6380 | - |
dc.identifier.uri | http://hdl.handle.net/10261/148073 | - |
dc.description.abstract | We determined the lipid distributions (n-alkanes, n-alkan-2-ones, n-alkanoic acids), total organic carbon (TOC), total nitrogen (TN), Ca/Mg and ash content in Las Conchas mire, a 3.2 m deep bryophyte-dominated mire in Northern Spain covering 8000 cal yr BP. Bog conditions developed in the bottom 20 cm of the profile, and good preservation of organic matter (OM) was inferred from n-alkanoic acid distribution, with the exception of the uppermost 20 cm (last ca. 200 yr). Microbial synthesis of long chain saturated fatty acids from primary OM likely produced a dominance of short chain n-alkanoic acids with a bimodal distribution, as well as the lack of correspondence between the n-alkane and n-alkanoic acid profiles in the upper 20 cm. This was accompanied by an increase in ash content, a decrease in TOC and variation in n-alkane ratios, thereby suggesting significant changes in the mire, namely drainage and transformation to a meadow, in the last ca. 200 yr. The distribution of n-alkan-2-ones indicated an increase in bacterial source from the bottom of the record to 94 cm, whereas their distribution in the upper part could be attributed mainly to plant input and/or the microbial oxidation of n-alkanes. The different n-alkane proxies showed variations, which we interpreted in terms of changes in vegetation (Sphagnum vs. non-Sphagnum dominated phases) during the last 8000 cal yr BP. C23 was the most abundant homolog throughout most of the record, thereby suggesting dominant humid conditions alternating with short drier phases. However, such humid conditions were not linked to paleoclimatic variation but rather to geomorphological characteristics: Las Conchas mire, at the base of the Cuera Range, receives continuous runoff—even during drier periods—which is not necessarily accompanied by additional mineral input to peat, producing the development of Sphagnum moss typical of waterlogged ecotopes and damp habitats. Thus, although geochemical proxies indicated an ombrotrophic regime in the mire, geomorphological characteristics may make a considerable contribution to environmental conditions. | es_ES |
dc.description.sponsorship | The study was made possible by funding from the Spanish Inter-Ministry Commission of Science and Technology (CICYT), projects CGL2013-46458-C1-1-R, and CGL2013-46458-C2-2-R. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-46458-C2-2-R | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-46458-C1-1-R | es_ES |
dc.relation.isversionof | Postprint | es_ES |
dc.rights | openAccess | en_EN |
dc.subject | Biomarkers | es_ES |
dc.subject | Peat | es_ES |
dc.subject | Geomorphology | es_ES |
dc.subject | Holocene | es_ES |
dc.subject | Northern Spain | es_ES |
dc.title | Biomarkers and inorganic proxies in the paleoenvironmental reconstruction of mires: The importance of landscape in Las Conchas (Asturias, Northern Spain) | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1016/j.orggeochem.2016.02.009 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.orggeochem.2016.02.009 | es_ES |
dc.embargo.terms | 2018-03-03 | es_ES |
dc.rights.license | http://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | es_ES |
dc.relation.csic | Sí | es_ES |
oprm.item.hasRevision | no ko 0 false | * |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
Aparece en las colecciones: | (INCAR) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Biomarkers_inorganic_Ortiz.pdf | 787,98 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
27
checked on 28-mar-2024
WEB OF SCIENCETM
Citations
23
checked on 29-feb-2024
Page view(s)
317
checked on 28-mar-2024
Download(s)
317
checked on 28-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons