Mid-Tertiary arcuate dikes and faults of the Rio Hondo-Red River drainages, Sangre de Cristo Mountains, New Mexico: A postulated outlying ring-fracture zone to the Miocene Questa caldera
David M. Jones

Abstract:

Arcuate faults, dikes and the distribution of base and precious metals occurrences along the Red River and Rio Hondo drainages of northern New Mexico define an integrated mid-Tertiary structural break. This break represents a ring-fracture zone which exhibits normal displacement down to the north in the direction of the 26 Ma Questa caldera; movement along the fault zone is bracketed between 26-21 Ma. The ring-fracture zone defines a previously unidentified outlying structural boundary to the Questa caldera.


Citation:

  1. Jones, David M., 1990, Mid-Tertiary arcuate dikes and faults of the Rio Hondo-Red River drainages, Sangre de Cristo Mountains, New Mexico: A postulated outlying ring-fracture zone to the Miocene Questa caldera, in: Tectonic development of the southern Sangre de Cristo Mountains, New Mexico, Bauer, Paul W.; Lucas, Spencer G.; Mawer, Christopher K.; McIntosh, William C., New Mexico Geological Society, Guidebook, 41st Field Conference, pp. 365-368.

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