Abstract
Taal Volcano is peculiar in its violent explosivity in spite of its low altitude. The surrounding topographies suggest that the origin of Taal Volcano is either a caldera or a graben structure. To confirm the caldera origin one must search for a vast quantity of caldera ejecta balancing with the depression. As a first step, a gravity survey was carried out on and around Taal Volcano, and high gravity anomalies were lound on Volcano Island. The distribution of the gravities may suggest a graben structure overlying a denser layer of igneous material.
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Yokoyama, I., Alcaraz, A. & Peña, O. Gravimetric studies of Taal Volcano, philippines. Bull Volcanol 39, 479–489 (1975). https://doi.org/10.1007/BF02597268
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DOI: https://doi.org/10.1007/BF02597268