Browsing ELibrary by Subject "EARTH HISTORY"

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  • EVOLUTION AND IMPORTANCE OF WETLANDS IN EARTH HISTORY 
    Greb S.F.; DiMichele W.A.; Gastaldo R.A. (2006)
    The fossil record of wetlands documents unique and long-persistent fl oras and faunas with wetland habitats spawning or at least preserving novel evolutionary characteristics and, at other times, acting as refugia. In ...
  • THERMAL AND RARE GAS EVOLUTION OF THE MANTLE 
    Phipps Morgan J. (1998)
    Present-day seismic evidence implies that the 660 km-deep seismic velocity jump is associated with neither an internal thermal boundary layer nor a strong internal barrier to flow between the upper and lower mantle. However, ...