Isostasy — Formula Sheet
ICSE · Class 11 · Geography
3 formulas from Isostasy (ICSE Class 11 Geography) on one page, grouped by topic. Part of the ICSE Class 11 Geography syllabus.
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Formulas and Key Relations
Airy's concept of isostasy
Airy's iceberg freeboard-to-draught ratio: 1 : 9
Airy's root-depth multiplier: root depth = height of rock above substratum × 8
Pratt's concept of isostasy
Inverse relation of density and column size: bigger the column, lesser the density; smaller the column, greater the density
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