Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records

Simple item page
dc.contributor.authorBustamante, M. G.
dc.contributor.authorCruz, F. W.
dc.contributor.authorVuille, M.
dc.contributor.authorApaéstegui Campos, James Emiliano
dc.contributor.authorStrikis, N.
dc.contributor.authorPanizo, G.
dc.contributor.authorNovello, F. V.
dc.contributor.authorDeininger, M.
dc.contributor.authorSifeddine, A.
dc.contributor.authorCheng, H.
dc.contributor.authorMoquet, J. S.
dc.contributor.authorGuyot, J. L.
dc.contributor.authorSantos, R. V.
dc.contributor.authorSegura Cajachagua, Hans Mikhail
dc.contributor.authorEdwards, R. L.
dc.coverage.spatialAmérica del Sur
dc.coverage.spatialAndes
dc.date.accessioned2018-08-09T16:40:29Z
dc.date.available2018-08-09T16:40:29Z
dc.date.issued2016-08-15
dc.description.abstractTwo well-dated δ¹⁸O-speleothem records from Shatuca cave, situated on the northeastern flank of the Peruvian Andes (1960 m asl) were used to reconstruct high-resolution changes in precipitation during the Holocene in the South American Summer Monsoon region (SASM). The records show that precipitation increased gradually throughout the Holocene in parallel with the austral summer insolation trend modulated by the precession cycle. Additionally the Shatuca speleothem record shows several hydroclimatic changes on both longer- and shorter-term time scales, some of which have not been described in previous paleoclimatic reconstructions from the Andean region. Such climate episodes, marked by negative excursions in the Shatuca δ¹⁸O record were logged at 9.7–9.5, 9.2, 8.4, 8.1, 5.0, 4.1, 3.5, 3.0, 2.5, 2.1 and 1.5 ka b2k, and related to abrupt multi-decadal events in the SASM. Some of these events were likely associated with changes in sea surface temperatures (SST) during Bond events in the North Atlantic region. On longer time scales, the low δ¹⁸O values reported between 5.1-5.0, 3.5–3.0 and 1.5 ka b2k were contemporaneous with periods of increased sediment influx at Lake Pallcacocha in the Andes of Ecuador, suggesting that the late Holocene intensification of the monsoon recorded at Shatuca site may also have affected high altitudes of the equatorial Andes further north. Numerous episodes of low SASM intensity (dry events) were recorded by the Shatuca record during the Holocene, in particular at 10.2, 9.8, 9.3, 6.5, 5.1, 4.9, 2.5 and 2.3 ka b2k, some of them were synchronous with dry periods in previous Andean records.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationBustamante, M. G., Cruz, F. W., Vuille, M., Apaéstegui, J., Strikis, N., Panizo, G., ... Edwards, R. L. (2016). Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ18O speleothem records.==$Quaternary Science Reviews, 146,$==274-287. https://doi.org/10.1016/j.quascirev.2016.05.023es_ES
dc.identifier.doihttps://doi.org/10.1016/j.quascirev.2016.05.023es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalQuaternary Science Reviewses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/2350
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.ispartofurn:issn:0277-3791
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectSouth American Summer Monsoones_ES
dc.subjectSpeleothemes_ES
dc.subjectNortheastern Peruvian Andeses_ES
dc.subjectStable isotopeses_ES
dc.subjectPaleoclimatees_ES
dc.subjectHolocenees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.10es_ES
dc.titleHolocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem recordses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

Files

License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Arbitrados