@article{PAR00026708, title = {{H}ydroclimate reconstructions in the {S}uguta {V}alley, northern {K}enya, during the {E}arly-{M}iddle {P}leistocene {T}ransition}, author = {{R}obakiewicz, {E}. and {O}wen, {R}. {B}. and {R}osca, {C}. and {D}eino, {A}. and {G}arcin, {Y}annick and {T}rauth, {M}. {H}. and {K}uebler, {S}. and {J}unginger, {A}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {E}arly-{M}iddle {P}leistocene {T}ransition ({EMPT}) between 1200 and 700 ka represents a major global climate transition from dominantly 41,000- to 100,000-year glacial cycles. {T}he forces and mechanisms behind this transition and the response of {A}frican environments are not well understood. {T}he active volcanism and tectonics of the {E}ast {A}frican {R}ift {S}ystem add complexity to local environmental systems and can erase important proxy records, inhibiting studies of lacustrine dynamics. {A}s a result, there is minimal understanding of how this transition impacted the region's lake systems. {A}t {P}aleolake {S}uguta, in the northern {K}enya {R}ift, however, flood basalts cap lacustrine {EMPT}-age deposits, preserving these strata and their valuable paleoenvironmental record. {T}his research presents a high-resolution reconstruction of hydrological change from approximately 931 to 831 ka within the {S}uguta-{T}urkana {B}asin in the northern {K}enya {R}ift. {P}aleolake dynamics are reconstructed from a 41 m sedimentary section using diatom morphology, sedimentology, and {X}-{R}ay {F}luorescence elemental analysis. {R}esults show that lake levels varied greatly during this part of the {EMPT} with two wetter phases and two drier phases developing over about 100 kyr. {F}rom similar to 885-831 ka, especially, the {S}uguta-{T}urkana {B}asin exhibits rapid changes in paleohydrology, ranging between deep stratified lakes; shallow, well-mixed lakes; and complete desiccation, with some of these changes occurring on an order of hundreds of years. {T}his {EMPT} {S}uguta-{T}urkana{B}aringo record therefore provides valuable insight into hydroclimate variability at an overall resolution of several thousand years, allowing reconstruction of past environments during a period of poorly understood terrestrial environmental change.}, keywords = {{S}uguta-{T}urkana-{B}aringo {B}asin ; {P}aleolimnology ; {G}eochemistry ; {D}iatom ; {T}ephra ; {Q}uaternary ; {KENYA}}, booktitle = {}, journal = {{P}alaeogeography {P}alaeoclimatology {P}alaeoecology}, volume = {628}, numero = {}, pages = {111758 [17 ]}, ISSN = {0031-0182}, year = {2023}, DOI = {10.1016/j.palaeo.2023.111758}, URL = {https://www.documentation.ird.fr/hor/{PAR}00026708}, }