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Global Volcanism Program | Image GVP-07585

The largest and best-known maar of the Ventura volcanic field is Joya Honda.  The eastern wall of the 850 x 1100 m wide, 300-m-deep maar is seen here from the south rim.  The maar was erupted through Cretaceous limestones, the cliff-forming units in the crater wall, about 1.1 million years ago. The Ventura volcanic field consists of a group of maars and pyroclastic cones located immediately NE of the city of San Luis Potosí in the southern Basin and Range province of central México.   Photo by Jorge Aranda-Gómez, 1994 (Universidad Autónoma de México).

The largest and best-known maar of the Ventura volcanic field is Joya Honda. The eastern wall of the 850 x 1100 m wide, 300-m-deep maar is seen here from the south rim. The maar was erupted through Cretaceous limestones, the cliff-forming units in the crater wall, about 1.1 million years ago. The Ventura volcanic field consists of a group of maars and pyroclastic cones located immediately NE of the city of San Luis Potosí in the southern Basin and Range province of central México.

Photo by Jorge Aranda-Gómez, 1994 (Universidad Autónoma de México).

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Ventura Volcanic Field