Banderas Rift Zone: A plausible NW limit of the Jalisco Block
2002; American Geophysical Union; Volume: 29; Issue: 20 Linguagem: Inglês
10.1029/2002gl016089
ISSN1944-8007
Autores Tópico(s)earthquake and tectonic studies
ResumoEcho soundings recently made in Bahía de Banderas show that this region is a graben with steeply dipping walls and several basins; it is the offshore continuation of the Valle de Banderas graben, and of a branching rift (Río Ameca rift) originating in the Tepic‐Zacoalco rift zone. The general trend of the three structures is ENE with some NE trending offsets, and they have a total length of 150 km; this Banderas Rift Zone is proposed as the NW limit of the Jalisco block. The existence of this limit suggests that there is another platelet, or block, between the Jalisco block and a portion of the Rivera plate, probably bounded by the Tres Marías escarpment, the Jalisco block and the North America plate.
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