| Wilshire, H.G., Meyer, C.E., Nakata, J.K., Calk, L.C., Shervais, J.W., Nielson, J.E., Schwarzman, E.C. (1985) Mafic and ultramafic xenoliths from volcanic rocks of the western United States. Open-File Report Vol. 1985 (85-139) US Geological Survey doi:10.3133/ofr85139 | Report (issue) | in California to the Great Plains. Xenoliths from 68 localities are described here, but new localities...compositions of the dikes generally show that they no longer represent liquid compositions. This is interpreted...was propagated in front of the zone of liquid intrusion by a gas phase evolved from the hydrous liquids...while the Big Creek, California trachyandesites (no. 9) are intrusive into Mesozoic granitic rocks of...include: the late Cenozoic(?) Malapai Hill basalt (no. 20) is interpreted (Stull and McMillan, 1973) as |
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