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Patterns of volcanism along the southern margin of the Colorado Plateau - The Springerville field (1989)

Aubele, Jayne C. ; Elston, Wolfgang E. ; Crumpler, L. S. ; [et al.]

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Publication Date: 2019-07-12

Description: Results from studies of the 2.1- to 0.3-my-old Springerville volcanic field are summarized, including research on geologic mapping, volume, age, chemical characterization, composition, temporal variations, and effusion and migration rates. It is found that the rocks of the field are predominantly alkali olivine and transitional basalts, with subordinate proportions of hawaiite and tholeiite. The evolution of the field is described as an early pulse of tholeiitic volcanism followed by a peak in alkali olivine basalt production in the middle of the field's eruptive history, and a late peak in evolved alkalic rock production about 0.5 my after the alkali olivine basalt peak.

Keywords: GEOPHYSICS

Type: Journal of Geophysical Research (ISSN 0148-0227); 94; 7975-798

Format: text

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