... of the block diagrams (Figs. 3 and 4). Unfortunately, the excellent advance sheet of the Newberry Crater quadrangle was not available for field-work, but the reconnaissance maps of the Forest Service were supplemented, in part, by detailed plans kindly loaned by George Conklin, of the Shevlin-Hixon Lumber...

...:62500. Dibblee , T.W. , Jr. , 1966 a, Geologic map of the Newberry quadrangle, San Bernardino County , California : U.S. Geological Survey Map I-461 , scale 1:62 500. Dibblee , T.W. , Jr. , 1966 b, Geologic map of the Lavic quadrangle, San Bernardino County , California : U.S...

... ( Fig. 3 ), the ca. 214 Ma Happy granite of Newberry et al. (1998a) , which crops out in the northeastern part of the study area and continues to the northeast into the central Eagle quadrangle, and the ca. 212 Ma Taylor Mountain batholith in the southeastern Eagle quadrangle ( Aleinikoff et al., 1981...

... . Szumigala , D.J. , Newberry , R.J. , Werdon , M.B. , Athey , J.E. , Flynn , R.L. , and Clautice , K.H. , 2002 , Bedrock geologic map of the Eagle A-1 quadrangle, Fortymile mining district, Alaska : Alaska Division of Geological and Geophysical Surveys Preliminary Interpretive...

... into the Fortymile River assemblage (Taylor Mountain assemblage of previous papers). In the eastern Eagle quadrangle, rapid and widespread Early Jurassic cooling is indicated by ∼188–186 Ma 40 Ar/ 39 Ar plateau ages for hornblende from plutons that intrude the Fortymile River assemblage, and for metamorphic minerals...

... for plutons from U.S. Bureau of Mines ( 1995 ), C. Dusel-Bacon and M. Lanphere (unpublished data), J.K. Mortensen (unpublished data), and Newberry et al. ( 1998 b ). Areas shown with no pattern are Devonian and Cambrian to Late Proterozoic sedimentary rocks north of the Tintina fault and Quaternary surficial...

... ; Gilbert 1977 ; Gilbert and Bundtzen 1979 ; Newberry et al. 1997 ). Protoliths consist of varying amounts of predominantly bimodal (felsic and mafic) volcanic and shallow-level intrusive rocks that are interlayered with carbonaceous and siliceous sedimentary rocks indicative of a submarine setting...

... made in these areas. Weaverville Quadrangle (Trinity and Shasta counties) by N. E. A. Hinds, assistant professor of geology, University of California. Shasta Quadrangle (Siskiyou, Shasta, and Trinity counties) with special reference to economic developments, by Charles V. Averill, district...

... rocks ( Burns et al. 1991 ; Newberry et al. 1990 ; Foster et al. 1994 ), and chemical and Sr isotopic analyses of Late Cretaceous to Early Tertiary granitic rocks in the Fairbanks area ( Blum 1985 ). Newberry et al. ( 1990 ) recognize isotopic and age-of-intrusion trends across the YTT for ore-bearing...

... similarities between these described rocks in the Healy and Big Delta quadrangles were noted by many (e.g., Weber et al., 1978 ; Gilbert and Bundtzen, 1979 ; Smith et al., 1994 ; Newberry et al., 1996 ; Dusel-Bacon et al., 2004 ). Several studies (e.g., Weber et al., 1978 ; Smith et al., 1994 ; Foster...

..., Alaska : U.S. Geological Survey Mineral Investigations Field Studies Map MF-247 . Hummel , C.L. , 1962 b, Preliminary geologic map of the Nome D-1 quadrangle, Seward Peninsula, Alaska : U.S. Geological Survey Miscellaneous Field Studies Map MF-248 . Layer , P.W. , and Newberry...

... of the eastern Transverse Ranges, California, suggested by paleomagnetic vectors , Geol. Soc. Am. Bull. 98 , 199 - 206 . California Division of Mines and Geology (1988) . Special studies zone map, Newberry Springs 7.5 minute quadrangle . Chen...

... silicic volcanism trending north–south from northeast Oregon to northern Nevada. Rhyolite volcanism of the 12–0 Ma High Lava Plains province has been ascribed to either buoyancy-driven westward plume spreading or to slab rollback and mantle convection spanning from southeast Oregon to Newberry Volcano...

...Thomas A. Douglas; Paul W. Layer; Rainer J. Newberry; Mary J. Keskinen Abstract This study presents new petrologic and thermochronologic information from the Fairbanks district of east central Alaska that indicate a complex metamorphic and structural history for the western Yukon–Tanana terrane...

.... (1966) . Geologic map of the Newberry Quadrangle, San Bernadino County, California , U. S. Geol. Surv., Map 1-461 . Doser D. I. (1988) . Source mechanisms of earthquakes in the Nevada Seismic Zone (1915-1943) , J. Geophys. Res...

... became the starting point for virtually all stratigraphic work in Honduras. This stratigraphic synthesis—by necessity constructed from widely scattered sampling sites and small areas of detailed mapping—has been shown to need revision. Since the beginning of a quadrangle mapping program in 1968...

...., Werdon, M.B., Newberry, R.J., Athey, J.E., Clautice, K.H., Flynn, R.L., Grady, J.C., Munly, W.C., and Johnson, M.R. 2002 b . Major oxide, minor oxide, trace element, rare-earth element, trace geochemical, and coal quality data from rocks collected in Eagle and Tanacross quadrangles, Alaska in 1999, 2000...

... metamorphism and located south of the field area ( Aleinikoff 1984 ; Nokleberg et al. 1992 ; Foster et al. 1994 ; Newberry et al. 1998 ; Mortensen 1999 ); and latest Cretaceous to earliest Paleogene (50–70 Ma) plutons that crop out to the west of the field area ( Foster et al. 1994 ). Subsequent...

... , 2014 ; Foster et al. 1994 ; Moll-Stalcup et al. 1994 ; Newberry et al. 1995 ; J.K. Mortensen, written commun., 2015). In the YTU, these rocks include rhyolite domes and lava that crop out on either side of longitude 144° and small areas of rhyolite lava in the central Eagle and Tanacross quadrangles...