Data release for geochronology and geochemistry of volcanic rocks in the Southern Rocky Mountains and Taos Plateau volcanic fields and other Oligocene to Pleistocene volcanic rocks within the southern San Luis Basin and San Juan Mountains, southern Colorado and northern New Mexico

The dataset includes whole-rock geochemistry and 40Ar-39Ar
geochronology for Pleistocene to Oligocene volcanic and
intrusive rocks. These data support figures and tables in
days 2 and 3 of the Field-trip guide to continental arc to
rift volcanism of the southern Rocky Mountains-Southern
Rocky Mountain, Taos Plateau, and Jemez Mountains volcanic
fields of southern Colorado and northern New Mexico
(Thompson and others, 2022). Additional 40Ar-39Ar
geochronology data are included for age reported in the
Geologic map of Ute Mountain quadrangle (Thompson and
others, 2014b) and the Geologic map of Sunshine quadrangle
(Thompson and others, 2014a). Other samples not associated
with any of these referenced publications are also included.
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There may be slight variation in the ages reported here and
other previously reported ages on the geologic maps for the
Sunshine and Ute Mountain quadrangles (Thompson and others
2014a,b) and some ages originally reported on the Geologic
map of the San Antonio Mountain area (Turner and others,
2017) due to statistical methods used in calculating the
age.