Surficial geology-Continued Special problems-Continued Recent deposits ________________________________ _ 42 Vegetation and surficial geology, by J. C. Goodlett__ Alluvial fans ______________________________ _ 42 Vegetation regions and forest types __________ _ Alluvium _________________________________ _ 42 Forest types and surficial geology ____________ _ Geomorphic development of the Appalachian Plateaus ___ _ 43 Northern hardwood region ______________ _ Description of upland surfaces ___________________ _ 44 Oak-forest region ______________________ _ Size and shape _____________________________ _ 44 Possible explanations of geobotanical relation-Slopes ____________________________________ _ 44 ships ___________________________________ _ Age ______________________________________ _ Microrelief resulting from fallen trees, by C. S. Denny Restored contours drawn on upland surfaces __ _ 44 and J. C. Goodlett_ __________________________ _
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