Previous studies have shown it has a simple carbonate mineralogy (low-magnesium calcite,w0.26% Mg; J.M. Russell, unpubl. data; Bessems, 2007)
; archiveType changed - was originally Lake sediment (LS)
every 2cm in the upper 10cm and then every 4-6cm downcore
a negative excursion in the d18Ocarb profiles suggests reduced evaporative concentration of lake water. Although it is not straightforward to compare carbonate with water d18O values, d18O values are more similar to groundwater (c. 2&; K. Mills & J.M. Russell, unpubl. data), in contrast to current lake water values indicating net evaporation (values between A¾2 and A¾4&; K. Mills & J.M. Russell, unpubl. data).'
discussion in relation to other proxies for upper sediments
fraction of modern 14C activity uncertainty
210Pb, 239+240Pu or 137Cs activity uncertainty
Y if supported 210Pb activity, N if unsupported 210Pb activity
model used to convert 210Pb activity to age (e.g., constant rate of supply)
years before 1950 (calibrated age, or ages that dont need calibration)
d18O (LS11RYKA): paleoData_isPrimary: '' has been replaced by 'FALSE'
d18O (LS11RYKA): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
depth (MAT587c7733cf): paleoData_isPrimary: '' has been replaced by 'FALSE'
depth (MAT587c7733cf): paleoData_primaryAgeColumn: '' has been replaced by 'FALSE'
year (MAT5b1c65d758): paleoData_isPrimary: '' has been replaced by 'TRUE'
year (MAT5b1c65d758): paleoData_primaryAgeColumn: '' has been replaced by 'TRUE'
d18O (LS11RYKA): interpretation1_basis: 'a negative excursion in the d18Ocarb profiles suggests reduced evaporative concentration of lake water. Although it is not straightforward to compare carbonate with water d18O values, d18O values are more similar to groundwater (c. 2&; K. Mills & J.M. Russell, unpubl. data), in contrast to current lake water values indicating net evaporation (values between A¾2 and A¾4&; K. Mills & J.M. Russell, unpubl. data).'' has been replaced by ''
d18O (LS11RYKA): interpretation1_direction: 'negative' has been replaced by ''
d18O (LS11RYKA): interpretation1_inferredMaterial: 'lake water' has been replaced by ''
d18O (LS11RYKA): interpretation1_integrationTimeUncertaintyType: 'chronology, unknown lake residence time' has been replaced by ''
d18O (LS11RYKA): interpretation1_integrationTimeUnits: 'Years' has been replaced by ''
d18O (LS11RYKA): interpretation1_rank: '1' has been replaced by ''
d18O (LS11RYKA): interpretation1_scope: 'isotope' has been replaced by 'climate'
d18O (LS11RYKA): interpretation1_variable: 'hydrologicBalance' has been replaced by ''
d18O (LS11RYKA): interpretation1_variableGroup: 'EffectiveMoisture' has been replaced by ''
d18O (LS11RYKA): interpretation1_variableGroupDirection: 'negative' has been replaced by ''
d18O (LS11RYKA): interpretation1_variableGroupOriginal: 'I_E' has been replaced by ''
d18O (LS11RYKA): interpretation2_basis: 'discussion in relation to other proxies for upper sediments' has been replaced by ''
d18O (LS11RYKA): interpretation2_direction: 'negative' has been replaced by ''
d18O (LS11RYKA): interpretation2_inferredMaterial: 'Lake water' has been replaced by ''
d18O (LS11RYKA): interpretation2_integrationTimeUncertaintyType: 'chronology, unknown lake residence time' has been replaced by ''
d18O (LS11RYKA): interpretation2_integrationTimeUnits: 'Years' has been replaced by ''
d18O (LS11RYKA): interpretation2_rank: '2' has been replaced by ''
d18O (LS11RYKA): interpretation2_scope: 'isotope' has been replaced by 'climate'
d18O (LS11RYKA): interpretation2_variable: 'deleteMe' has been replaced by ''
d18O (LS11RYKA): interpretation2_variableGroup: 'catchment disturbance' has been replaced by ''
d18O (LS11RYKA): interpretation3_direction: 'negative' has been replaced by ''
d18O (LS11RYKA): interpretation3_inferredMaterial: 'Lake water' has been replaced by ''
d18O (LS11RYKA): interpretation3_integrationTimeUncertaintyType: 'chronology, unknown lake residence time' has been replaced by ''
d18O (LS11RYKA): interpretation3_integrationTimeUnits: 'Years' has been replaced by ''
d18O (LS11RYKA): interpretation3_rank: '3' has been replaced by ''
d18O (LS11RYKA): interpretation3_scope: 'isotope' has been replaced by 'climate'
d18O (LS11RYKA): interpretation3_variable: 'temperature' has been replaced by ''
d18O (LS11RYKA): interpretation3_variableGroup: 'Temperature' has been replaced by ''
d18O (LS11RYKA): interpretation3_variableGroupDirection: 'negative' has been replaced by ''
d18O (LS11RYKA): interpretation3_variableGroupOriginal: 'T_lake' has been replaced by ''
d18O (LS11RYKA): interpretation4_basis: '' has been replaced by 'a negative excursion in the d18Ocarb profiles suggests reduced evaporative concentration of lake water. Although it is not straightforward to compare carbonate with water d18O values, d18O values are more similar to groundwater (c. 2&; K. Mills & J.M. Russell, unpubl. data), in contrast to current lake water values indicating net evaporation (values between A¾2 and A¾4&; K. Mills & J.M. Russell, unpubl. data).''
d18O (LS11RYKA): interpretation4_direction: '' has been replaced by 'negative'
d18O (LS11RYKA): interpretation4_inferredMaterial: '' has been replaced by 'lake water'
d18O (LS11RYKA): interpretation4_integrationTimeUncertaintyType: '' has been replaced by 'chronology, unknown lake residence time'
d18O (LS11RYKA): interpretation4_integrationTimeUnits: '' has been replaced by 'Years'
d18O (LS11RYKA): interpretation4_rank: '' has been replaced by '1'
d18O (LS11RYKA): interpretation4_scope: '' has been replaced by 'isotope'
d18O (LS11RYKA): interpretation4_variable: '' has been replaced by 'hydrologicBalance'
d18O (LS11RYKA): interpretation4_variableGroup: '' has been replaced by 'EffectiveMoisture'
d18O (LS11RYKA): interpretation4_variableGroupDirection: '' has been replaced by 'negative'
d18O (LS11RYKA): interpretation4_variableGroupOriginal: '' has been replaced by 'I_E'
d18O (LS11RYKA): interpretation5_basis: '' has been replaced by 'discussion in relation to other proxies for upper sediments'
d18O (LS11RYKA): interpretation5_direction: '' has been replaced by 'negative'
d18O (LS11RYKA): interpretation5_inferredMaterial: '' has been replaced by 'Lake water'
d18O (LS11RYKA): interpretation5_integrationTimeUncertaintyType: '' has been replaced by 'chronology, unknown lake residence time'
d18O (LS11RYKA): interpretation5_integrationTimeUnits: '' has been replaced by 'Years'
d18O (LS11RYKA): interpretation5_rank: '' has been replaced by '2'
d18O (LS11RYKA): interpretation5_scope: '' has been replaced by 'isotope'
d18O (LS11RYKA): interpretation5_variable: '' has been replaced by 'deleteMe'
d18O (LS11RYKA): interpretation5_variableGroup: '' has been replaced by 'catchment disturbance'
d18O (LS11RYKA): interpretation6_direction: '' has been replaced by 'negative'
d18O (LS11RYKA): interpretation6_inferredMaterial: '' has been replaced by 'Lake water'
d18O (LS11RYKA): interpretation6_integrationTimeUncertaintyType: '' has been replaced by 'chronology, unknown lake residence time'
d18O (LS11RYKA): interpretation6_integrationTimeUnits: '' has been replaced by 'Years'
d18O (LS11RYKA): interpretation6_rank: '' has been replaced by '3'
d18O (LS11RYKA): interpretation6_scope: '' has been replaced by 'isotope'
d18O (LS11RYKA): interpretation6_variable: '' has been replaced by 'temperature'
d18O (LS11RYKA): interpretation6_variableGroup: '' has been replaced by 'Temperature'
d18O (LS11RYKA): interpretation6_variableGroupDirection: '' has been replaced by 'negative'
d18O (LS11RYKA): interpretation6_variableGroupOriginal: '' has been replaced by 'T_lake'
depth (MAT587c7733cf): interpretation1_scope: '' has been replaced by 'climate'
depth (MAT587c7733cf): interpretation2_scope: '' has been replaced by 'climate'
depth (MAT587c7733cf): interpretation3_scope: '' has been replaced by 'climate'
year (MAT5b1c65d758): interpretation1_scope: '' has been replaced by 'climate'
year (MAT5b1c65d758): interpretation2_scope: '' has been replaced by 'climate'
year (MAT5b1c65d758): interpretation3_scope: '' has been replaced by 'climate'
Updated lipdverse database entry with a changed file.
d18O (LS11RYKA): interpretation1_variable: 'I_E' has been replaced by 'hydrologicBalance'
d18O (LS11RYKA): interpretation2_variable: 'catchment disturbance' has been replaced by 'deleteMe'
d18O (LS11RYKA): interpretation3_variable: 'T_lake' has been replaced by 'temperature'
Changes made as part of LiPDverse vocabulary standardization process
d18O (LS11RYKA): paleoData_longName: '' has been replaced by 'AD'
depth (MAT587c7733cf): paleoData_longName: '' has been replaced by 'AD'
year (MAT5b1c65d758): paleoData_units: 'AD' has been replaced by 'yr AD'
year (MAT5b1c65d758): paleoData_longName: '' has been replaced by 'AD'
Ryves, David B. , Mills, Keely , Bennike, Ole , Brodersen, Klaus Peter , Lamb, Angela L. , Leng, Melanie J. , Russell, James M. , Ssemmanda, Immaculate
Ryves, D. B., Mills, K., Bennike, O., Brodersen, K. P., Lamb, A. L., Leng, M. J., Russell, J. M. and Ssemmanda, I.: Environmental change over the last millennium recorded in two contrasting crater lakes in western Uganda, eastern Africa (Lakes Kasenda and Wandakara), Quaternary Science Reviews, 30(5-6), 555–569, doi:10.1016/j.quascirev.2010.11.011, 2011.
Environmental change over the last millennium recorded in two contrasting crater lakes in western Uganda, eastern Africa (Lakes Kasenda and Wandakara)