Search results for "Paleovegetation"
showing 2 items of 2 documents
Vegetation dynamics of Kisima Ngeda freshwater spring reflect hydrological changes in northern Tanzania over the past 1200 years: implications for pa…
2021
13 pages; International audience; Kisima Ngeda (KN), a spring on the northern margin of saline Lake Eyasi, Tanzania, sustains an Acacia-Hyphaene palm woodland and Typha swamps, while the surrounding vegetation is semi-desert. To study the vegetation changes associated with this spring, which represents a plausible modern analog for the fossil springs documented in the nearby paleoanthropological and archaeological sites of Olduvai Gorge, we analyzed the pollen content of a 43 cm-long sediment core that documents vegetation changes since the last ~1200 years (from cal yrs. C.E. 841 to 2011). Our results show that (1) Hyphaene palms, which require meso-halophytic soil conditions were most abu…
Multiple sediment proxies from Jaraguá cave, Brazil
2019
Multiple paleoclimate, paleovegetation and paleoenvironmental records from Jaraguá cave, located at center of South America. In this dataset that covers the last 28,000 year is included δ13C and δ18O values and 87Sr/86Sr ratios in stalagmites combined with XRF-derived elemental chemistry, δ13Corg, total organic carbon and total inorganic carbon (carbonate) in a sedimentary profile from the same cave.