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单词 palaeoclimatology
释义
palaeoclimatology

Biology
  • The study of climates of earlier geological periods. This is based largely on the study of sediments that were laid down during these periods and of fossils. The changes in the positions of the continents as a result of continental drift and plate tectonics complicate the study. Determination of historical perturbations in the climate provides vital information for the construction of accurate climate models that can predict the trajectory of future climate change.


Geology and Earth Sciences
  • The study of past climates from the traces left behind in the geologic record. It is assumed that the uniformitarian principle has obtained, but this may not be the case, and the geologic data are always insufficient for palaeoclimatological purposes. Dating methods and palaeogeographic reconstructions are suspect, and often fossil faunas and floras cannot be related easily in terms of time. Most glacial strata can be dated only within wide limits and many climatic criteria leave no mark in the rocks.


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