Revillagigedo Archipelago — Ocean-island volcanism

Scope

This research line focuses on the igneous petrology and volcanic geochemistry of the Revillagigedo Archipelago, an active ocean-island volcanic province in the eastern Pacific.

Work integrates field volcanology, stratigraphy, whole-rock and mineral geochemistry, and radiogenic isotopes to reconstruct eruptive histories and magmatic processes.

Isla San Benedicto — Bárcena Volcano (1952–1953)

Focus: Monogenetic volcanism, hydrovolcanic processes, and short-lived magma evolution during the 1952–53 eruption.

Methods:

• Stratigraphy and pyroclastic facies analysis
• Whole-rock geochemistry (XRF, ICP-MS)
• Mineral chemistry (EPMA) and SEM textures
• Radiogenic isotopes (TIMS; Sr–Nd–Pb)

Outcome:
A comprehensive eruptive and magmatic model for Bárcena Volcano, documenting a transitional hydrovolcanic–magmatic system in an ocean-island setting.

Isla Socorro

Focus: Petrological and geochemical characterization of volcanic products from Isla Socorro to place Bárcena within the broader archipelago-scale magmatic framework.

Status:
Ongoing and planned analytical work based on existing sample collections.