Economic Geology; January 2005; v. 100; no. 1;
p. 87-114; DOI: 10.2113/100.1.0087
© Society of Economic Geologists
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FIG. 3. Major physiographic units of the Cordillera Occidental, southern
Perú, showing the locations of dated tuffs documented in earlier studies and
the distribution of Tertiary landform elements within the limits of
geomorphologic mapping by Tosdal (1978; simplified after Tosdal et al., 1984).
Dated minerals: bi = biotite, hb = hornblende, pl = plagioclase.
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