 ... feel", and containing enough ocher to soil the fingers. In the next phase the ocher preponderates, but is held together by a more or less continuous skeleton of silica, although it can be readily removed with a pick. The final stage in the transition...  Contributions to Economic Geology, 1902 - Seite 430von Samuel Franklin Emmons - 1903 - 449 SeitenVollansicht - Über dieses Buch
 | 1904 - 516 Seiten
...a second, in which the rock is perceptibly porous, having a rough fracture 1 Trans., xxx., 415-416. and a harsh 'feel,' and containing enough ocher to...pick. The final stage in the transition is the soft yellow-ocher, filling the veins, which crumbles on drying, and contains only a small proportion of... | |
 | Geological Survey of Georgia - 1906 - 126 Seiten
...detail, has so fully and adequately described it, that I quote at length from his description. He says:' "The contact between the ocher and the inclosing quartzite...contains only a small proportion of silica in the form of sand-grains. "The intermediate zone between the pure ocher and the quartzite is usually a few inches... | |
 | Thomas Leonard Watson - 1906 - 132 Seiten
...completely honeycombed with these irregular passages and rooms. "The contact between the ocher and inclosing quartzite is never sharp and distinct, but...contains only a small proportion of silica in the form of sand-grains. "The intermediate zone between the pure ocher and the quartzite is usually a few inches... | |
 | Samuel Washington McCallie - 1926 - 226 Seiten
...completely honey-combed with these irregular passages and rooms. The contact between the ocher and enclosing quartzite is never sharp and distinct, but always...yellow ocher, filling the veins, which crumbles on dry ing, and contains only a small proportion of silica in the form of sand grains. 110 In the residual... | |
 | Georgia. Department of Mines, Mining, and Geology - 1906 - 128 Seiten
...has so fully and adequately described it, that I quote at length from his description. He says : ' "The contact between the ocher and the inclosing quartzite...contains only a small proportion of silica in the form of sand-grains. "The intermediate zone between the pure ocher and the quartzite is usually a few inches... | |
 | Georgia. Department of Mines, Mining, and Geology - 1910 - 264 Seiten
...completely honeycombed with these irregular passages and rooms. The contact between the ocher and enclosing quartzite is never sharp and distinct, but always...ocher, filling the veins, which crumbles on drying, and con •f. i c H il CO — > • —. I -x n 90 o 5 O 1 o tarns only a small proportion of silica in... | |
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