Dating climatic episodes of the holocene junki dating
Top panels are pollen-based reconstructions from Bartlein et al.
(2011) with anomalies defined as compared to recent.
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have all been used to refer to this warm period that marked the middle of the current interglacial period.
AA(Department of Meteorology, Center for Climatic Research, Institute for Environmental Studies, University of Wisconsin, Madison, Wisconsin 53706 USA.), AB(Department of Meteorology, Center for Climatic Research, Institute for Environmental Studies, University of Wisconsin, Madison, Wisconsin 53706 USA.) Monitoring evidence indicates that the Holocene embraced a sequence of rather discrete climatic episodes.
The transitions between these environmental episodes apparently were abrupt and globally synchronous.
There are some important exceptions to this pattern, however, including colder summers in the monsoon regions of Africa and Asia due to stronger monsoons with associated increased cloud cover during the mid-Holocene, and warmer winters at high latitudes due to reduction of winter sea ice cover caused by more summer melting.This paper reports on statistical analyses of radiocarbon dates associated with environmental change and cultural change.Over 800 C dates associated with pollen maxima and minima, sea level maxima and minima, and top and bottom surfaces of peat beds were simultaneously analyzed to identify times of globally synchronous environmental discontinuities.In the following, we will describe the shift in climate, flora and fauna during the past 11,800 years and briefly relate this to cultural adaptions.The Holocene is sub-divided into eight climatic episodes and for the reader’s convenience, these are summarized below. The cold conditions of the Pleistocene were caused by the changing of the earth’s orbit around the sun combined with changes in ocean currents.
Through the use of reliable AMS dating of high resolution (15–30 years) peat and the establishment of monsoon climate proxies sequence, we have been able to recognize several cold, dry events in the Tibetan Plateau during the Holocene.