 | | Report (issue) |
| Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development..._ _______----Spruce Pine district- ___________ Buncombe district__-_-__--_--_ Woodlawn district_____________ |
 | | Report (issue) |
| under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority Physical...under a cooperative agreement with the State of North Carolina and the Tennessee Falley Authority UNITED...ruling planes—______-__-__---____-_--_---____ Biotite-muscovite intergrowths________________________...Production of sheet and punch mica, 1912-14, in North Carolina, the Southeastern States, and the entire United...data for mica specimens, arranged by lot and by mine or prospect-_-___--_-___-_-.___---___-_____--_ Results |
 | | Report (issue) |
| • (B)-SCOTLAND: 1. South Lowland District 2. North Lowland District ... 3. Scottish Highlands and Islands...and Central and North Wales District 4. Yorkshire and East Midlands District 5. North-Western District...District • • • 6. North-Eastern District • • • III. 3 • • • • 50 52 54 58 60 64 • • • • • • GEOPHYSICAL...formerly Chief Civil and Hydraulic Engineer of the North of Scotland Hydro-Electric Board, and Professor...workin g from London, have been centralized in a North of England Office at Leeds. A new post of Assistant |
 | | Journal (issue) |
| Morro Velho mi11e in Brazil ; on tl1e Village Deep mine, for example, clevelopment has nearly reached a...of 3,800 and 5,800 ft. The neighbouring City Deep mine is being developed to a deptl1 of 6,900 ft. vertical...example of a highly profitabl mine, the Gov rn• ment Gold-.. 1ining Areas mine in tl1e East Rand might be...in orthern Ontario, it is the most important gold mine in the world; in 1925, fro·m 1,932,000 short tons...wide. The centre of its sc>uthern boundary is just north of Pretoria. Platinum metals have been known for |
