Cosmogenic 10Be and 26Al exposure ages of glaciations in the Frankland Range, southwest Tasmania reveal a limited MIS-2 ice advance
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文摘
Local LGM (MIS 2) maximum glaciation is at ∼19–21 ka, is of limited extent and smaller than all earlier advances. Minimum exposure ages of successive older moraines range from MIS-5 to MIS-12. No evidence for MIS 3 or MIS 4 glacial deposits. Ancient glacial landscape sculpting altered younger ice advances. Local topography and microclimate controlled glacial extent during marginal conditions.
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