31. Starting with macrofossil deposited in glacial clay found in Scania in 1871, Nathorst investigated postglacial development in flora and vegetation. 32. In the Pleistocene Tuya Volcanic Field, small subaerial shield volcanoes and postglacial cinder cones and lava flows can be recognized. 33. The Kazbek is no longer active, but the Elbrus erupted in postglacial times and fumarole activity is registered near its summit. 34. This influx reached its climax around 3000 BC when the climate improved considerably, giving rise to the postglacial period of warmth. 35. Formerly a shallow, postglacial lake draining into Lake Michigan, it has been changed beyond recognition by industrial redevelopment and decay. 36. Brickearths are periglacial loess, a wind-blown dust deposited under extremely cold, dry, peri-or postglacial conditions. 37. The volcano was constructed in two phases and postglacial lava flows have been found by Landsat imagery, but they are unsampled. 38. In this same period, she was employed by geologists of the Geological Survey of Sweden to study diatoms in postglacial sediment. 39. Here and there, faint depressions occur, occupied by marshy sloughs, or floored with a rich black soil of postglacial origin. 40. The modern postglacial stratovolcano is constructed above a group of overlapping volcanoes, remnants of which form irregularities on Fuji's profile.
