scholarly journals Millennial-Scale Response of a Western Mediterranean River to Late Quaternary Climate Changes: A View from the Deep Sea

2014 ◽  
Vol 122 (6) ◽  
pp. 687-703 ◽  
Author(s):  
Lucile Bonneau ◽  
Stéphan J. Jorry ◽  
Samuel Toucanne ◽  
Ricardo Silva Jacinto ◽  
Laurent Emmanuel
Keyword(s):  
Deep Sea ◽  
Climate Changes ◽  
Late Quaternary ◽  
Western Mediterranean ◽  
Mediterranean River ◽  
Quaternary Climate ◽  
Scale Response ◽  
Quaternary Climate Changes ◽  
Millennial Scale

Environmental Changes at Lake Cheshi, Zambia Since 40,000 Years B.P.

1988 ◽  
Vol 29 (1) ◽  
pp. 54-65 ◽  
Author(s):  
J. Curt Stager
Keyword(s):  
Climate Changes ◽  
Environmental Changes ◽  
Late Quaternary ◽  
Central Africa ◽  
Testate Amoeba ◽  
Lake Levels ◽  
Quaternary Climate ◽  
South Central ◽  
Arid Conditions ◽  
Quaternary Climate Changes

Sediment and microfossil analyses of a 7.5-m core from Lake Cheshi suggest that south-central Africa experienced late Quaternary climate changes similar to those in East Africa. The lake formed around 34,000 yr B.P., after a prelacustrine phase of at least 6000 yr, from climatic or tectonic causes. Ratios of precipitation to evaporation were probably similar to those of today until a decline about 15,000–13,000 yr B.P. when the lake shrank and became chemically concentrated. Maximal lake levels occurred between 8000 and 4000 yr B.P., and were followed by a low stand under presumably arid conditions about 3500 yr B.P. Encroachment of sudd vegetation contributed to shallowing during the last 3000 yr. A phase of microfossil dilution may reflect human activity in the basin, or climatic or hydrological changes. Melosira valve morphology seems to reflect mixing regimes. Sponge and testate amoeba remains were most numerous relative to diatoms during low-water phases.

scholarly journals Uranium remobilisation in anoxic deep rock-groundwater system in response to late Quaternary climate changes – Results from Forsmark, Sweden

2021 ◽  
Vol 584 ◽  
pp. 120551
Author(s):  
Juhani Suksi ◽  
Eva-Lena Tullborg ◽  
Ivan Pidchenko ◽  
Lindsay Krall ◽  
Björn Sandström ◽  
...  
Keyword(s):  
Climate Changes ◽  
Late Quaternary ◽  
Groundwater System ◽  
Quaternary Climate ◽  
Deep Rock ◽  
Quaternary Climate Changes
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