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. Garcin, Y. Williamson, D. Bergonzini, L. Radakovitch, O. Vincens, A. Buchet, G. Guiot, J. Mathe, P.-E. Majule, A. Brewer, S. 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 (Lake Masoko>LATITUDE -9.3333>LONGITUDE 33.755) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Garcin, Y. Investigator : Williamson, D. Investigator : Bergonzini, L. Investigator : Radakovitch, O. Investigator : Vincens, A. Investigator : Buchet, G. Investigator : Guiot, J. Investigator : Mathe, P.-E. Investigator : Majule, A. Investigator : Brewer, S. 2008-03-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/6071 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.txt English https://www.ncdc.noaa.gov/paleo/study/6071 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.xls https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/eastafrica/masoko2007.txt 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 START YEAR: 439 cal yr BP * END YEAR: -52 cal yr BP 33.755 -9.3333 33.755 -9.3333