noaa-cave-12972
Juxtlahuaca Cave, Mexico 2400 Year d18O and Precipitation Reconstruction
Lachniet, M.S.; Bernal, J.P.; Asmerom, Y.; Polyak, V.J.; Piperno, D.
Juxtlahuaca Cave, Mexico 2400 Year d18O and Precipitation Reconstruction
2012-06-04
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/12972
Investigator
M.S.
Lachniet
Investigator
J.P.
Bernal
Investigator
Y.
Asmerom
Investigator
V.J.
Polyak
Investigator
D.
Piperno
earth science
paleoclimate
speleothems
depth,null,null,millimeter,null,speleothems,null,null,N,null
earth science
paleoclimate
climate reconstructions|speleothems
precipitation,delta 18O,null,millimeter,May-Nov,climate reconstructions|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
climate reconstructions|speleothems
age,null,null,year Common Era,null,climate reconstructions|speleothems,null,null,N,null
earth science
paleoclimate
speleothems
delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,corrected|smoothed,isotope ratio mass spectrometry,N,smoothed: 5 years and corrected: actual age minus 9 years
earth science
paleoclimate
speleothems
age,null,null,year Common Era,null,speleothems,null,null,N,null
earth science
paleoclimate
speleothems
age,null,null,calendar year before present,null,speleothems,null,null,N,present defined as 2010.4 CE
earth science
paleoclimate
speleothems
oxygen isotopes
geoscientificInformation
Precipitation Reconstruction
drought
-446 AD
2010 AD
2396 cal yr BP
-60 cal yr BP
Complete
17.44
17.44
-99.16
-99.16
927
927
Continent
North America
Mexico
Juxtlahuaca Cave>LATITUDE 17.44>LONGITUDE -99.16
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Lachniet, M.S., J.P. Bernal, Y. Asmerom, V. Polyak,
and D. Piperno. 2012.
A 2400 yr Mesoamerican rainfall reconstruction links climate
and cultural change.
Geology, Vol. 40, No. 3, pp259 - 262, March 2012.
doi:10.1130/G32471.1
Droughts are a recurring feature of Mexican climate, but few
high-resolution data are available to test for climate-change
forcing of Mesoamerican civilizations. We present a quantitative
2400 yr rainfall reconstruction for the Basin of Mexico, from a
precisely dated and highly resolved speleothem, that documents
highly variable rainfall over the past 2400 yr. Dry conditions
peaked during a 150-yr-long late Classic (ca. 600–900 CE) (Common
Era) mega drought that culminated at 770 CE which followed
centuries of climatic drying that spanned the fall of the city
of Teotihuacán ca. 550 CE. The wettest conditions in the 1450s
CE were associated with flooding in the Basin of Mexico.
Our data suggest that rainfall variability was likely forced
by the El Niño-Southern Oscillation, and impacts on spring-fed
irrigation agriculture may have been a stressor on Mesoamerican
civilizations.
STUDY NOTES: Stalagmite JX-6 oxygen isotope data (d18O) and rainfall reconstruction
from Juxtlahuaca Cave, Mexico for the past 2400 years.
The rainfall reconstruction is based on the 5-yr smoothed and 1-yr
interpolated d18O data, with ages adjusted 9-years older to account
for drip water transit time (see Figure DR2 of Lachniet et al., 2012).
Juxtlahuaca Cave, near Colotlipa, Guerrero, Mexico:
17.4°N, 99.2°W, 934 m a.s.l.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/mexico/juxtlahuaca2012.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/mexico/juxtlahuaca2012.xls
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11