The present contribution is the first instalment in a systematic revision of the corals from the Sonoran Bisbee Group (late Barremian to early Albian). The article gives a short overview on the lithostratigraphy and outcrops of the study area and…

The Late Cretaceous-early Tertiary (Laramide) orogeny (90-40 Ma) in the northwestern part of Mexico produced an important calc-alkaline magmatism, accompanied by several associated porphyry copper and skarn deposits. In the Sierra Santo Niño, Sonora, the Bacanora batholith intrusive complex, composed…

Beach sand samples collected from two localities of the Gulf of California (Puerto Peñasco and Bahia Kino, Sonora) were analyzed in order to identify their provenance and depositional history on the basis of the different microtextures on the quartz grains.…

Detrital zircon U-Pb geochronology from each of the formations of the Triassic-Lower Jurassic Barranca and El Antimonio groups of central and northwestern Sonora and from the Lower Jurassic Basomari and Middle Jurassic Lily formations of northern Sonora indicate they contain…

The Arizpe sub-basin located in the northern part of the Río Sonora basin is a Basin and Range half-graben that initiated during Late Oligocene time in north-central Sonora. Its ~2.1 km-thick, east-dipping volcanic and sedimentary fill assigned to the Báucarit…