 A FOLDED VEIN OR SEAM. Let Fig. 12 be a contour-map of an area on which an irregular outcrop has been partly located, as, for instance, at the stations marked with an X. At various other points, as 6, 9, 11, 19, drill-holes have been sunk and the seam...  Practical Field Geology - Página 121por John Herbert Farrell, Alfred Joseph Moses - 1912 - 273 páginasVista completa - Acerca de este libro
 | 1910 - 736 páginas
...illustrated in Figs. 12 to 12B. XII. To DETERMINE THE OUTCROP OF A FOLDED VEIN OR SEAM. Let Fig. 12 be a contour-map of an area on which an irregular...the surface, and where these seam-contours intersect APPLICATION OF GEOMETRY TO MINING-PROBLEMS. those of the surface of equal elevation we have points... | |
 | 1910 - 808 páginas
...illustrated in Figs. 12 to 12B. XII. To DETERMINE THE OUTCROP OF A FOLDED VEIN OR SEAM. Let Fig. 12 be a contour-map of an area on which an irregular...the surface, and where these seam-contours intersect APPLICATION OF GEOMETRY TO MINING-PROBLEMS. those of the surface of equal elevation we have points... | |
 | 1910 - 822 páginas
...for instance, at the stations marked with an X. At various other points, as 6, 9, 11, 19, drill holes have been sunk and the seam located at the depths...folded seam may be determined if we can establish its contour lines corresponding to those on the surface, and where these seam contours intersect those... | |
 | 1910 - 746 páginas
...illustrated in Figs. 12 to 12B. XII. To DETERMINE THE OUTCROP or A FOLDED VEIN OR SEAM. Let Fig. 12 be a contour-map of an area on which an irregular...of equal elevation we have points on the outcrop. Fio. 12. For the sake of clearness, we will gather all the information available into a separate illustration,... | |
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