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25 feet north alumina ammonoides amphibolite appearance associated avenue base beds borings Brady Bulimina Bull California chambers character Clay color Company considerable contain copper corner corundum County Creek crystals d'Orbigny datum deposits depth described developed diameter dikes district emery engineer fathoms feet east feet north feet west feldspar formation fossil gems Geol geological Georgia give given gneiss grains gravel Hill inches included iron Island Jour known less limestone localities Location masses material miles mineral mining Miocene Mountain nearly North Carolina observed obtained occurs origin peridotite plane portion present quantity Recent records region relations River rock ruby sandstone sapphires schist separated showing side similar sometimes species specimens spinel stone street surface Survey U. S. Geol United usually variety vary vein wheel York zone
Seite 69 - The serial publications of the United States Geological Survey consist of (1) Annual Reports, (2) Monographs, (3) Professional Papers, (4) Bulletins, (5) Mineral Resources, (6) Water-Supply and Irrigation Papers, (7) Topographic Atlas of United States — folios and separate sheets thereof, (8) Geologic Atlas of the United States — folios thereof.
Seite 159 - B 46. Nature and origin of deposits of phosphate of lime, by RAF Penrose, jr., with introduction by NS Shaler. 1888.
Seite 3 - The Matawan Formation of Maryland, Delaware and New Jersey, and Its Relations to Overlying and Underlying Formations, by WB Clark, Am. Jour. Sci., 4th Ser., vol. xviii., pp. 435-440; Additions to the Flora of the Matawan Formation, by Edward W.