Isla Santa Fe

Here is a hawk that sat next to me at lunch one

day near the summit of the island.

Santa Fe is the faulted remnant of a 3 Ma shield volcano. Several parasitic cinder cones are in its interior. The west coast of the island has huge sea cliffs, which could be the headwall scarp of a giant landslide. The island was briefly described by McBirney and Williams; I wrote a slightly more detailed note on the island in 1985 (it has some embarrassing typos and horrendous graphics).

Geist DJ, McBirney AR, Duncan RA (1985) Geology of Santa Fe Island: the oldest Gal·pagos volcano. J Volcanol Geotherm Res 52: 65-82.
McBirney AR, Williams H (1969) Geology and petrology of the Gal·pagos Islands. Geol Soc Am Mem 118, pp 1-197.

Here is my poor geologic map of the island.

And a profile of the island from the west.

Check out the excellent analyses from Santa Fe - OR-

Download an Excel file of geochemical data.

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