Pleistocene Climates in Low Latitudes

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Abstract
Ever since the development of the glacial theory in the 1830''s, attention has centered mainly on glacial and periglacial events in middle and high latitudes; the warmer parts of the earth have received less study. Possibly the widespread use of the term "glacial age" was in itself a factor in focusing attention chiefly on glaciation. Yet any explanation of the mechanism of a conspicuous change in world climates must try to explain what was happening in low latitudes as well as in high, if only because the climates of both are parts of a single dynamic system. Furthermore, as the equatorial zone is the belt of greatest input of solar energy, events in that zone may have a particularly close relation to secular climatic changes. For these reasons the low latitudes are receiving increased attention in Pleistocene studies. It is worth while to examine briefly the geologic features of these latitudes that have a bearing on former climates.

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