Abstract

Sayles recognized five buried soils that stratigraphically separate eolianites and interbedded marine limestones in Bermuda. He considered that the paleosols represent interglacial ages or interstadials. Some soils were considered residual, and some accretionary. Estimates of time of weathering of residual soils were made by computing ratios of insoluble residues in parent eolianite to the overlying whole soil.

Field study shows that island-wide correlation of the paleosols may be tenuous. No available cuts permit direct tracing of soils. Buried soils cannot be dated unless superposition is shown, and only section McGall's Bay shows all five soils superposed; correlation with other sections is difficult.

The morphology, physical and chemical properties, and mineralogy (as determined by X-ray, DTA, and thin sections) of the paleosols show that Sayles' Shore Hills and St. George's soils have considerable soil development and may represent major stratigraphic breaks. They are not residual but have other materials incorporated in their uppermost parts. Thus, Sayles' time estimates are questionable. The Harrington, Signal Hill, and McGall's paleosols have only weak color profiles and slight accumulations of organic matter in their uppermost parts. The latter two soils may represent only local pauses in accretion during accumulation of the later Bermuda dunes.

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