Pacupahuain Cave, Peru Glacial Stable Isotope and Greyscale Data Kanner, L.C.; Burns, S.J.; Cheng, H.; Edwards, R.L. Kanner, L.C. Burns, S.J. Cheng, H. Edwards, R.L. Dansgaard-Oeschger cycles Heinrich Events Monsoon PAGES 2k Network PAGES LOTRED SA2k earth science/paleoclimate/speleothems (depth,null,null,millimeter,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (age,null,null,calendar year before present,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (grayscale,calcium carbonate,null,dimensionless,null,speleothems,raw,image analysis,N,null) earth science/paleoclimate/speleothems earth science/paleoclimate/speleothems (Pacupahuain Cave>LATITUDE -11.24>LONGITUDE -75.82) The climate of the Last Glacial period (10,000 to 110,000 years ago) was characterized by rapid millennial-scale climate fluctuations termed Dansgaard/Oeschger (D/O) and Heinrich events. We present results from a speleothem-derived proxy of the South American summer monsoon (SASM) from 16,000 to 50,000 years ago that demonstrate the occurrence of D/O cycles and Heinrich events. This tropical Southern Hemisphere monsoon reconstruction illustrates an antiphase relationship to Northern Hemisphere monsoon intensity at the millennial scale. Our results also show an influence of Antarctic millennial-scale climate fluctuations on the SASM. This high-resolution, precisely dated, tropical precipitation record can be used to establish the timing of climate events in the high latitudes of the Northern and Southern Hemispheres. STUDY NOTES: The Pacupahuain Cave P09PH2 stalagmite sample is record of paleoclimatic change in tropical South America during the Last Glacial period between 16,000 and 50,000 years ago. The age model is based on 17 U/Th ages. Stable oxygen and carbon isotope ratios (d18O and d13C, per mil VPDB) were measured on 1076 micromilled samples taken along the growth axis. Greyscale data was determined using ImageJ software. Average sampling resolution is approximately 30 years. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Kanner, L.C. Investigator : Burns, S.J. Investigator : Cheng, H. Investigator : Edwards, R.L. 2012-01-27 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/12421 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.xls https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.xls English https://www.ncdc.noaa.gov/paleo/study/12421 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/peru/pacupahuain2012.xls Lisa C. Kanner, Stephen J. Burns, Hai Cheng, R. Lawrence Edwards2012High-Latitude Forcing of the South American Summer Monsoon During the Last GlacialScience3356068570-57310.1126/science.1213397 http://science.sciencemag.org/content/335/6068/570 START YEAR: 49585 cal yr BP * END YEAR: 16021 cal yr BP -75.82 -11.24 -75.82 -11.24