|
Quartz stringers in footwall of vein, Eldorado Mine, near bottom of shaft. Stringers are parallel and at angles to the vein but cross the vertical cleavage of the country rock. Hanging wall marked by later shear. Sierra County, California. 1924. Plate 12-A, in U.S.Geological Survey Professional paper 172. 1932.
|
Hills of volcanic rocks north of Belmont road. Nye County, Nevada. 1915. Plate 4 in U.S. Geological Survey. Bulletin 723. 1924.
|
Limestone conglomerate of Dunlap formation (right) unconformable on limestone of Luning formation, Garfield Hills, ridge 4 miles east of Garfield Peak. Mineral County, Nevada. 1937. Plate 4-A, in U.S.Geological Survey Professional paper 258. 1956.
|
Round Rock. A typical erosion form of the Round Rock breccia. Nye County, Nevada. 1915. Plate 3-A in U.S. Geological Survey. Bulletin 723. 1924.
|
Manhattan Gulch between Mount Moriah and Wolf Tone Point, showing placer workings. Nye County, Nevada. 1915. Plate 17-A in U.S. Geological Survey. Bulletin 723. 1924.
|
View more...
|