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Wet periods in northeastern Brazil over the past 210 kyr linked to distant climate anomalies
The tropics are the main source of the atmosphere's sensible and latent heat, and water vapour, and are therefore important for reconstructions of past climate. But long, accurately dated records ofExpand
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Climate change patterns in Amazonia and biodiversity.
Precise characterization of hydroclimate variability in Amazonia on various timescales is critical to understanding the link between climate change and biodiversity. Here we present absolute-datedExpand
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Orbitally driven east-west antiphasing of South American precipitation
The variations of tropical precipitation are antiphased between the hemispheres on orbital timescales. A comparison between a speleothem record of precipitation in northeast Brazil and rainfallExpand
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Millennial‐scale precipitation changes in southern Brazil over the past 90,000 years
[1] A U-Th dated 90,000 year-long speleothem oxygen isotope record from southern Brazil anti-correlates remarkably with the cave calcite records from eastern China, but positively correlates with theExpand
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Interhemispheric anti-phasing of rainfall during the last glacial period
Abstract We have obtained a high-resolution oxygen isotopic record of cave calcite from Caverna Botuvera (27°13′S, 49°09′W), southern Brazil, which covers most of the last 36 thousand years (ka),Expand
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Timing and structure of the 8.2 kyr B.P. event inferred from δ18O records of stalagmites from China, Oman, and Brazil
Oxygen isotope records of stalagmites from China and Oman reveal a weak summer monsoon event, with a double-plunging structure, that started 8.21 ± 0.02 kyr B.P. An identical but antiphased patternExpand
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Quaternary ecological and geomorphic changes associated with rainfall events in presently semi-arid northeastern Brazil
Several geomorphic features and palaeobiotic remains in now semi-arid northeastern Brazil indicate major palaeoenvironmental changes during past periods of increased rainfall. 230Th massExpand
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Hydroclimate changes across the Amazon lowlands over the past 45,000 years
Reconstructing the history of tropical hydroclimates has been difficult, particularly for the Amazon basin—one of Earth’s major centres of deep atmospheric convection. For example, whether the AmazonExpand
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U-series dating and taphonomy of Quaternary vertebrates from Brazilian caves
Abstract The geochronology and taphonomy of internationally important fossil bearing cave deposits were studied, both in the semi-arid Northern Bahia area and the subtropical southeastern Lagoa SantaExpand
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Late Quaternary paleoclimate in semiarid northeastern Brazil from U-Series dating of travertine and water-table speleothems
Abstract Fossil travertine and subaqueous speleothems in presently dry caves suggest periods of enhanced ground-water recharge during the Quaternary Period in semiarid northeastern Brazil. TravertineExpand
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