Crawford Lake and Twiss Marl Pond 13,000 Year Stable Isotope Data Yu, Z. Yu, Z. earth science/paleoclimate/paleolimnology (delta 18O,gastropod,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,Valvata sincera) earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (delta 18O,carbonate,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,charophyte encrustation) earth science/paleoclimate/paleolimnology (delta 13C,carbonate,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/paleolimnology (delta 13C,carbonate,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,charophyte encrustation) earth science/paleoclimate/paleolimnology (age,null,null,radiocarbon year before present,null,paleolimnology,null,null,N,null) earth science/paleoclimate/paleolimnology (delta 13C,gastropod,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,Valvata sincera) earth science/paleoclimate/paleolimnology (delta 18O,carbonate,null,per mil VPDB,null,paleolimnology,null,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Crawford Lake>LATITUDE 43.46667>LONGITUDE -79.95) Evidence from stable isotopes and a variety of proxies from two Ontario lakes demonstrate that many of the late glacial-to-early Holocene events that are well known from the North Atlantic seaboard, such as the Gerzensee-Killarney Oscillation (also known as the Intra-Allerød Cold Period), Younger Dryas, and Preboreal Oscillation, also occurred in central North America. These results thus imply that climatic forcing acted in the same manner in both regions and that atmospheric circulation played an important role in the propagation of these events. STUDY NOTES: Stable isotope measurements on various authigenic carbonates from three cores (DC, SC, and BC) at Crawford Lake and one core from Twiss Marl Pond, southern Ontario, Canada. Both sites are on top of the Niagara Escarpment, surrounded by dolomite bedrock cliffs and thin glacial deposits. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Yu, Z. 1999-02-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/5467 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/twisspond_isotopes.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/twisspond/readme_yu1998.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/crawfordlake_isotopes.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/twisspond_isotopes.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/twisspond/readme_yu1998.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/crawfordlake_isotopes.txt English https://www.ncdc.noaa.gov/paleo/study/5467 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/twisspond_isotopes.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/twisspond/readme_yu1998.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/ontario/crawfordlake/crawfordlake_isotopes.txt Yu, Z.. 1998. Abrupt climate oscillations during the last deglaciation in central North America. Science Vol. 282, Issue no. 5397, pp. 2235-2238, 18 December 1998 START YEAR: 12660 cal yr BP * END YEAR: -48 cal yr BP -79.95 43.46667 -79.95 43.46667