TY - RPRT TI - Detrital zircon geochronology of Neoproterozoic to Middle Cambrian miogeoclinal and platformal strata: northwest Sonora, Mexico AU - Essa L. Gorss AU - John H. Stewart AU - George E. Gehrels PY - 2000 UR - https://pubs.usgs.gov/publication/70095026 ID - 70095026 ER -