Tertiary volcanic flow rocks, unit 6 (Page Mill-Mindego) (CATv6;0)

State	California
Name	Tertiary volcanic flow rocks, unit 6 (Page Mill-Mindego)
Geologic age	Tertiary (12-15 Ma)
Original map label	Tv
Primary rock type	basalt
Secondary rock type	andesite
Other rock types	dacite
Lithologic constituents	Major Igneous > Volcanic > Mafic-volcanic > Basalt (Flow) Minor Igneous > Volcanic > Mafic-volcanic > Basalt (Volcaniclastic, volcanic breccia) Igneous > Volcanic > Mafic-volcanic > Basaltic-andesite (Flow) Incidental Igneous > Volcanic > Mafic-volcanic > Basalt (Pyroclastic) Igneous > Volcanic > Mafic-volcanic > Basaltic-andesite (Volcaniclastic, volcanic breccia) Igneous > Volcanic > Mafic-volcanic > Basaltic-andesite (Pyroclastic) Igneous > Volcanic > Mafic-volcanic > Andesite (Flow) Igneous > Volcanic > Mafic-volcanic > Andesite (Volcaniclastic, volcanic breccia) Igneous > Volcanic > Felsic-volcanic > Dacite (Flow) Igneous > Volcanic > Felsic-volcanic > Dacite (Volcaniclastic, volcanic breccia)
Map references	Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Unit references	Brabb, E.E., Graymer, R.W., and Jones, D.L., 2000, Geologic map and map database of the Palo Alto 30' x 60' quadrangle, California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2332, 30 p., scale 1:100,000. [http://pubs.er.usgs.gov/publication/mf2332] Whitlock, Jaime S., 2002, Evidence of a mantle wedge source for slab window volcanism in the northern California coast ranges. Unpublished M.S. Thesis, the Pennsylvania State University, College Station, Pennsylvania, 78 p. Stanley, R.G., Wilson, D.S., and McCrory, P.A., 2000, Locations and ages of middle Tertiary volcanic centers in coastal California: U.S. Geological Survey Open-File Report 00-154, 27 p., url http://geopubs.wr.usgs.gov/open-file/of00-154/ [http://pubs.er.usgs.gov/publication/ofr00154] [http://geopubs.wr.usgs.gov/open-file/of00-154/] Springer, D.J., 2002, Geochemical correlation of the Iverson and Mindego basalts of Northern California: GSA abstract Jennings, C.W., Strand, R.G., and Rogers, T.H., 1977, Geologic map of California: California Division of Mines and Geology, scale 1:750,000.
Geographic coverage	Mendocino - Monterey - San Mateo - Santa Clara