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Cross section of basaltic next exposed by erosion in Grant Ridges, 6 miles northeast of Grant, view looking southwest in sec. 3, T. 11 S., R. 9 W. Basalt in core is jointed in vertical columns and surrounded by a thin zone of platy jointing developed along the contact with white tuff. Bedded breccia overlies the tuff, and basaltic lava overlies the breccia on the far side of the cone. The tuff, chiefly rhyolitic, was erupted from Mount Taylor. Valencia County, New Mexico. 1931. Plate 11-A, U.S.Geological Survey Professional paper 189-B. 1938. Album: Hunt #62, Valencia County, New Mexcio, 1931. T. 11 S., R. 9 W, Sec. 3 View NW. at natural cross-section of a cinder cone 6 miles northeast of Grant. Columnar jointed...
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Looking south from Cerro de Los Cuates, the mesa across the Rio Puerco is capped with Cretaceous sandstone. Sandoval County, New Mexico. 1930. Plate 12-C, U.S. Geological Survey Professional paper 189B. 1938. Album caption: View S. from the top of Cerro de Los Cuates. Sandoval Co., New Mexico [1932]
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Dike of basalt and basaltic breccia intruding Cretaceous shale. Sandoval County, New Mexico. 1930. Plate 17-A, U.S.Geological Survey Professional paper 189-B. 1938. Album: T. 14 N., R. 3 W., Sec. 3, Basic dike showing marginal chilling. Index Card: Marginal chilling in dike.
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Xenolith of fossiliferous Cretaceous sandstone in basaltic breccia: in neck of Gonzales Canyon. Sandoval County, New Mexico. 1930. Plate 14-B, with graphics, U.S. Geological Survey Professional paper 189-B. 1938. Album caption: Hunt, 232. Sandoval Co., N.M. [Handwritten note: 1932] E. 1/2 Sec. 33, T. 15 N., R. 3 W. Boulder of fossiliferous Hosta SS. in volcanic breccia. The country rock at this locality consists Manco and Mesaverde of lowest gently dipping beds of Mancos and Mesaverde of lowest Niobrara Age, 1000 feet lower than the Hosta SS.
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Basaltic lava in Santa Fe formation tilted and broken by a small fault, view along New Mexico Highway 6 in sec. 2, T. 9 N., R. 1 W. Tsf, Santa Fe formation; Tb, basaltic lava. Bernalillo County, New Mexico. 1931. Plate 19-B, with graphic, U.S.Geological Survey Professional paper 189-B. 1938. Album caption: Sec. 3, T. 9 N., R. 1 W. View S. Lava flow (basalt) tilted southward and overlain by the tertiary Santa Fe Formation. Hunt, 260. Bernalillo Co., New Mex.
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Flat lying unbroken Santa Fe formation crossing a normal fault in Cretaceous shale, looking north in Sedillo Grant 2 miles northeast of Suwanee; Santa Fe formation; Cretaceous shale. Valencia County, New Mexico. 1931. Plate 19-A, with graphics, U.S.Geological Survey Professional paper 189-B. 1938. Album: Sedillo Grant, 1 and 3 quarter mi. NNE of Suwanee. View N. Drag along fault plane. Kd3 on left. Greenhorn Mancos on right. Index Card: Fault in Cretaceous rocks in Sedillo Grant.
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Porphyritic andesite flows near base of north flank of Mount Taylor, view looking southward near center of south line of sec. 9, T.12 N., R. 7 W. Valencia County, New Mexico. 1932. Plate 10-A, U.S.Geological Survey Professional paper 189-B. 1938. Album: Near center S. Line Sec. 9, T. 12 N., R. 7W. View S.W. Eroded porphyry lava flows form rugged cliffs along the lower part of the N. Flank of Mt. Taylor.
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Angular unconformity between Santa Fe formation and underlying Cretaceous rocks, the Santa Fe dips 10 degrees S, 20 degrees W; the Cretaceous rocks dip 18 degrees S, 50 degrees E: view look south in center of sec. 3, T. 14 N., R. 1 E. Sandoval County, New Mexico. 1930. Plate 17-C, with graphics, U.S.Geological Survey Professional paper 189B. 1938. Album caption: Hunt, 265. Sandoval Co., New Mexico. [1932] Center Sec. 3, T. 14 N., R. 1 E. View S. Santa Fe formation (TSF) dips 10 De. S. 20 De. W. The upper part of the Gibson Coal Member (KGI) dips 18 De. S. 50 De. E.
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Volcanic neck east of La Abra de Los Cerros, view looking east. The country rock is Cretaceous shale. There is a vertical contact between the shale and the banded basaltic breccia that dips into the neck. Irregular masses of andesite or basalt with columnar jointing intrude the breccia. Sandoval County, New Mexico. 1930. Plate 14-A, with graphics, U.S. Geological Survey Professional paper 189-B. 1938. Album caption: Hunt, 236. Sandoval County, N.M. [handwritten note:1932] W. Side of neck located E. of La Abra de los Anos (T. 16 N., R. 3 W) The sloping foreground is a gently dipping sandy facies of the Mancos. The dark portions of the neck are breccia, the jointed portions andesite.
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Evans Peak: detail of columnar jointing and outer shell of irregular platy jointing. Photo by R.C. Becker. Sandoval County, New Mexico. 1931. Plate 15-B, with graphics, U.S. Geological Survey Professional paper 189-B. 1938. Album: Evans Peak. View of north side. Handwritten note: 1931.
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Basaltic lava and cinder cone on the sheet basalt capping Horace Mesa, view in center of sec. 3, T. 11 N., R. 8W. Cibola County, New Mexico. 1932. Plate 12-A, U.S. Geological Survey Professional paper 189-B. 1938. Album: W. Cor. Sec. 3, T. 11 N., R. 8W View S.W. Cone of Andesitic Lava. This marks one of five vents that supplied the andesitic flows on the Horace Mesa.
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Looking southwest toward Seboyeta Peak (Celosa, Cerro de la) the peak is composed of andesitic breccia intruded by andesite dikes, some of which can be seen at the left protruding above the lower park of the neck. Cibola County, New Mexico. 1930. Plate 16-A, U.S.Geological Survey Professional paper 189-B. 1938. Album caption: Hunti, 213. Valencia County, N.M., Seboyeta Peak, a volcanic neck. Viewed from the N.E. The neck consists largely of breccia irregulary intruded by andesitic dikes. The country rock is mancos shale. Index card: Photo date, 1932.
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Looking northeast from top of volcanic neck east of La Bra de Los Cerros, Cabezon Peak (right) is composed almost wholly of basalt. Cerro Chato (left) is mostly basaltic breccia. Road in foreground serves as scale for nearly buttes of Cretaceous shale. Sandoval County, New Mexico. 1930. Plate 12-B, U.S. Geological Survey Professional paper 189-B. 1938. Album caption: Hunt, 239. Sandoval Co., New Mexico [handwritten note: 1932] View from top of neck immediately east of La Abra de los Cerros ( T. 16 N., R. 3 W.). View N. along La Abra. Cabezon Peak (Right) is composed mostly of andesite. The other neck is composed mostly of breccia. Index card: 1932 Volcanic necks in the mesa country.


    map background search result map search result map Dike of basalt and basaltic breccia intruding Cretaceous shale. Sandoval County, New Mexico. 1930. Cross section of basaltic next exposed by erosion in Grant Ridges, 6 miles northeast of Grant, view looking southwest. Valencia County, New Mexico. 1931. Evans Peak: detail of columnar jointing and outer shell of irregular platy jointing. Sandoval County, New Mexico. 1931. Flat lying unbroken Santa Fe formation crossing a normal fault in Cretaceous shale, looking north in Sedillo Grant 2 miles northeast of Suwanee; Santa Fe formation; Cretaceous shale. Valencia County, New Mexico. 1931. Porphyritic andesite flows near base of north flank of Mount Taylor. Valencia County, New Mexico. 1932. Basaltic lava and cinder cone on the sheet basalt capping Horace Mesa. Valencia County, New Mexico. 1932. Looking southwest toward Seboyeta Peak (Celosa, Cerro de la).  Cibola County, New Mexico. 1930. Xenolith of fossiliferous Cretaceous sandstone in basaltic breccia: in neck of Gonzales Canyon. Sandoval County, New Mexico. 1930. Volcanic neck east of La Abra de Los Cerros, view looking east.  Sandoval County, New Mexico. 1930. Looking northeast from top of volcanic neck east of La Bra de Los Cerros, Cabezon Peak (right)  Sandoval County, New Mexico. 1930. Looking south from Cerro de Los Cuates. Sandoval County, New Mexico. 1930 Basaltic lava in Santa Fe formation. Bernalillo County, New Mexico. 1931. Angular unconformity between Santa Fe formation and underlying Cretaceous rocks. Sandoval County, New Mexico. 1938 Basaltic lava in Santa Fe formation. Bernalillo County, New Mexico. 1931. Cross section of basaltic next exposed by erosion in Grant Ridges, 6 miles northeast of Grant, view looking southwest. Valencia County, New Mexico. 1931. Flat lying unbroken Santa Fe formation crossing a normal fault in Cretaceous shale, looking north in Sedillo Grant 2 miles northeast of Suwanee; Santa Fe formation; Cretaceous shale. Valencia County, New Mexico. 1931. Porphyritic andesite flows near base of north flank of Mount Taylor. Valencia County, New Mexico. 1932. Basaltic lava and cinder cone on the sheet basalt capping Horace Mesa. Valencia County, New Mexico. 1932. Dike of basalt and basaltic breccia intruding Cretaceous shale. Sandoval County, New Mexico. 1930. Evans Peak: detail of columnar jointing and outer shell of irregular platy jointing. Sandoval County, New Mexico. 1931. Xenolith of fossiliferous Cretaceous sandstone in basaltic breccia: in neck of Gonzales Canyon. Sandoval County, New Mexico. 1930. Volcanic neck east of La Abra de Los Cerros, view looking east.  Sandoval County, New Mexico. 1930. Looking northeast from top of volcanic neck east of La Bra de Los Cerros, Cabezon Peak (right)  Sandoval County, New Mexico. 1930. Looking south from Cerro de Los Cuates. Sandoval County, New Mexico. 1930 Angular unconformity between Santa Fe formation and underlying Cretaceous rocks. Sandoval County, New Mexico. 1938 Looking southwest toward Seboyeta Peak (Celosa, Cerro de la).  Cibola County, New Mexico. 1930.