Hemispheric Asymmetry of the Marine Stratigraphic Record: Conceptual Proof of a Unipolar Ice Cap
Martin A. Perlmutter, Roy E. Plotnick, 2003. "Hemispheric Asymmetry of the Marine Stratigraphic Record: Conceptual Proof of a Unipolar Ice Cap", Climate Controls on Stratigraphy, C. Blaine Cecil, N. Terence Edgar
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The existence of a southern polar ice cap through geologic time can be established by identifying asymmetries in the marine stratigraphic records of the Northern and Southern Hemispheres produced by the interaction of precession-scale sediment-yield cycles and glacially controlled sea-level cycles. Asymmetries should be manifested in the clustering of bed thicknesses and other stratigraphic properties. Hemispheric asymmetry should not exist in an ice-free world. To demonstrate the concept, this paper establishes the foundations for the hypothesis and presents the results of a statistical analysis of the synthetic stratigraphy of a tropical monsoonal area.