Glacial geological evidence for the medieval warm period

  title={Glacial geological evidence for the medieval warm period},
  author={J. Morgan Grove and Roy Switsur},
  journal={Climatic Change},
It is hypothesised that the Medieval Warm Period was preceded and followed by periods of moraine deposition associated with glacier expansion. Improvements in the methodology of radiocarbon calibration make it possible to convert radiocarbon ages to calendar dates with greater precision than was previously possible. Dating of organic material closely associated with moraines in many montane regions has reached the point where it is possible to survey available information concerning the timing… 
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