Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records
Two 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 precipitatio...
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Online Access: | https://hdl.handle.net/20.500.12816/2350 https://doi.org/10.1016/j.quascirev.2016.05.023 |
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ftinstgpperu:oai:repositorio.igp.gob.pe:20.500.12816/2350 2023-07-30T04:05:38+02:00 Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records Bustamante, M. G. Cruz, F. W. Vuille, M. Apaéstegui Campos, James Emiliano Strikis, N. Panizo, G. Novello, F. V. Deininger, M. Sifeddine, A. Cheng, H. Moquet, J. S. Guyot, J. L. Santos, R. V. Segura Cajachagua, Hans Mikhail Edwards, R. L. América del Sur Andes 2016-08-15 application/pdf https://hdl.handle.net/20.500.12816/2350 https://doi.org/10.1016/j.quascirev.2016.05.023 eng eng Elsevier urn:issn:0277-3791 Bustamante, 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.2016.05.023 index-oti2018 http://hdl.handle.net/20.500.12816/2350 Quaternary Science Reviews https://doi.org/10.1016/j.quascirev.2016.05.023 info:eu-repo/semantics/restrictedAccess South American Summer Monsoon Speleothem Northeastern Peruvian Andes Stable isotopes Paleoclimate Holocene http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.10 info:eu-repo/semantics/article 2016 ftinstgpperu https://doi.org/20.500.12816/235010.1016/j.quascirev.2016.05.023 2023-07-17T16:50:49Z Two 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. Por pares Article in Journal/Newspaper North Atlantic Repositorio Geofísico Naciona del Perú Austral Quaternary Science Reviews 146 274 287 |
institution |
Open Polar |
collection |
Repositorio Geofísico Naciona del Perú |
op_collection_id |
ftinstgpperu |
language |
English |
topic |
South American Summer Monsoon Speleothem Northeastern Peruvian Andes Stable isotopes Paleoclimate Holocene http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.10 |
spellingShingle |
South American Summer Monsoon Speleothem Northeastern Peruvian Andes Stable isotopes Paleoclimate Holocene http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.10 Bustamante, M. G. Cruz, F. W. Vuille, M. Apaéstegui Campos, James Emiliano Strikis, N. Panizo, G. Novello, F. V. Deininger, M. Sifeddine, A. Cheng, H. Moquet, J. S. Guyot, J. L. Santos, R. V. Segura Cajachagua, Hans Mikhail Edwards, R. L. Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
topic_facet |
South American Summer Monsoon Speleothem Northeastern Peruvian Andes Stable isotopes Paleoclimate Holocene http://purl.org/pe-repo/ocde/ford#1.05.00 http://purl.org/pe-repo/ocde/ford#1.05.09 http://purl.org/pe-repo/ocde/ford#1.05.10 |
description |
Two 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. Por pares |
format |
Article in Journal/Newspaper |
author |
Bustamante, M. G. Cruz, F. W. Vuille, M. Apaéstegui Campos, James Emiliano Strikis, N. Panizo, G. Novello, F. V. Deininger, M. Sifeddine, A. Cheng, H. Moquet, J. S. Guyot, J. L. Santos, R. V. Segura Cajachagua, Hans Mikhail Edwards, R. L. |
author_facet |
Bustamante, M. G. Cruz, F. W. Vuille, M. Apaéstegui Campos, James Emiliano Strikis, N. Panizo, G. Novello, F. V. Deininger, M. Sifeddine, A. Cheng, H. Moquet, J. S. Guyot, J. L. Santos, R. V. Segura Cajachagua, Hans Mikhail Edwards, R. L. |
author_sort |
Bustamante, M. G. |
title |
Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
title_short |
Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
title_full |
Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
title_fullStr |
Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
title_full_unstemmed |
Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ¹⁸O speleothem records |
title_sort |
holocene changes in monsoon precipitation in the andes of ne peru based on δ¹⁸o speleothem records |
publisher |
Elsevier |
publishDate |
2016 |
url |
https://hdl.handle.net/20.500.12816/2350 https://doi.org/10.1016/j.quascirev.2016.05.023 |
op_coverage |
América del Sur Andes |
geographic |
Austral |
geographic_facet |
Austral |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
urn:issn:0277-3791 Bustamante, 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.2016.05.023 index-oti2018 http://hdl.handle.net/20.500.12816/2350 Quaternary Science Reviews https://doi.org/10.1016/j.quascirev.2016.05.023 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/20.500.12816/235010.1016/j.quascirev.2016.05.023 |
container_title |
Quaternary Science Reviews |
container_volume |
146 |
container_start_page |
274 |
op_container_end_page |
287 |
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1772817672141012992 |