noaa-lake-6071
Lake Masoko, Tanzania 500 Year Geochemical Data
Garcin, Y.; Williamson, D.; Bergonzini, L.; Radakovitch, O.; Vincens, A.; Buchet, G.; Guiot, J.; Mathe, P.-E.; Majule, A.; Brewer, S.
Lake Masoko, Tanzania 500 Year Geochemical Data
2008-03-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/6071
Investigator
Y.
Garcin
Investigator
D.
Williamson
Investigator
L.
Bergonzini
Investigator
O.
Radakovitch
Investigator
A.
Vincens
Investigator
G.
Buchet
Investigator
J.
Guiot
Investigator
P.-E.
Mathe
Investigator
A.
Majule
Investigator
S.
Brewer
earth science
paleoclimate
paleolimnology
depth,null,null,centimeter,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
nitrogen,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null
earth science
paleoclimate
paleolimnology
age,null,null,year Common Era,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
iron/titanium,sediment,null,dimensionless,null,paleolimnology,null,inductively-coupled plasma atomic emission spectroscopy,N,null
earth science
paleoclimate
paleolimnology
mass magnetic susceptibility,sediment,null,cubic meter per kilogram,null,paleolimnology,null,null,N,null
earth science
paleoclimate
paleolimnology
aluminum/titanium,sediment,null,dimensionless,null,paleolimnology,null,inductively-coupled plasma atomic emission spectroscopy,N,null
earth science
paleoclimate
paleolimnology
niobium/titanium,sediment,null,dimensionless,null,paleolimnology,null,inductively-coupled plasma atomic emission spectroscopy,N,null
earth science
paleoclimate
paleolimnology
carbon/nitrogen,sediment,null,dimensionless,null,paleolimnology,null,elemental analysis,N,total organic carbon/total nitrogen
earth science
paleoclimate
paleolimnology
silicon/titanium,sediment,null,dimensionless,null,paleolimnology,null,inductively-coupled plasma atomic emission spectroscopy,N,null
earth science
paleoclimate
paleolimnology
organic matter,sediment,null,percent,null,paleolimnology,null,loss on ignition,N,null
earth science
paleoclimate
paleolimnology
organic carbon,sediment,null,percent,null,paleolimnology,null,elemental analysis,N,null
earth science
paleoclimate
paleolimnology
geochemistry
geoscientificInformation
439 cal yr BP
-52 cal yr BP
Complete
-9.3333
-9.3333
33.755
33.755
840
840
Continent
Africa
Eastern Africa
Tanzania
Lake Masoko>LATITUDE -9.3333>LONGITUDE 33.755
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
Garcin, Y.,Williamson, D.,Bergonzini, L.,Radakovitch, O.,Vincens, A.,Buchet, G.,Guiot, J.,Mathe, P.-E.,Majule, A.,Brewer, S. 2007. Solar and anthropogenic imprints on Lake Masoko (southern Tanzania) during the last 500 years. Journal of Paleolimnology, Vol. 37, pp. 475-490
The Masoko crater-lake in southern Tanzania provides a continuous record of environmental changes covering the last 500 years. Multi-proxy studies were performed on a 52 cm sediment core retrieved from the deepest part of the lake. Magnetic, organic carbon, geochemical proxies and pollen assemblages indicate a dry climate during the 'Little Ice Age' (AD 1550ŋ1850), confirming that the LIA in eastern Africa resulted in marked and synchronous hydrological changes. However, the direction of response varies between different African lakes (low versus high lake-levels), indicating strong regional contrasts that prevent the clear identification of climate trends over eastern Africa at this time. Inferred changes in Masoko lake-levels closely resemble the record of solar activity cycles, indicating a possible control of solar activity on the climate in this area. This observation supports previous results from East African lakes, and extends this relationship southward. Finally, anthropogenic impact is observed in the Masoko sediments during the last 60 years, suggesting that human disturbance significantly affected this remote basin during colonial and post-colonial times.
STUDY NOTES: The multiproxy study performed on Lake Masoko, Tanzania core MKJ-03-II shows several marked changes in the sedimentary content, which are interpreted in term of lake-level, climatic changes and anthropogenic disturbances.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11