The Iron Ores of Minnesota: Their Geology, Discovery, Development, Qualities, and Origin, and Comparison with Those of Other Iron DistrictsHarrison & Smith, state printers, 1891 - 430 pages |
Other editions - View all
Common terms and phrases
Animike associated basalt beds Bessemer carbonate of iron carbonic acid Carboniferous cars cent chemical chlorite coal color containing crystalline schists crystals decomposition diabase drill Duluth eruptive feet feldspar ferric oxide ferruginous fissures formation fossils furnace gabbro Geol geologists gneiss grains granite green schist greenstone Griffen hematite Hist hoisting hole hornblende Huronian igneous Inst iron ore deposits iron-ore Jahrb Jasper jaspilyte Jour Journ Keewatin Lake Superior Laurentian Leonidas Merritt lime limestone limonite lodes magnesia magnetite masses Mesabi range metallic iron metamorphism mica mineral Mining Company Minneapolis Minnesota occur organic matter origin oxide of iron peroxide phosphorus plate precipitation Proc produced Prof pyrite quartz quartzyte region Report sandstone schists sedimentary sediments shaft shares siderite silica Silurian slates Soap rock solution specular steel strata structure surface Taconic theory tion Tower Trans veins Vermilion volcanic
Popular passages
Page 261 - Proceedings of the Geological and Polytechnic Society of the West Riding of Yorkshire, 1847.
Page 356 - States named since the tenth of May, eighteen hundred and seventytwo, may be patented without reference to any of the foregoing provisions of this chapter. Such lands shall be offered for public sale in the same manner, at the same minimum price, and under the same rights of pre-emption as other public lands.
Page 356 - Nevada," approved July twenty-five, eighteen hundred and sixty-six. SEC. 2345. The provisions of the preceding sections of this chapter shall not apply to the mineral lands situated in the States of Michigan, Wisconsin, and Minnesota, which are declared free and open to exploration and purchase, according to legal subdivisions, in like manner as before the tenth day of May, eighteen hundred and seventy-two. And any...
Page 358 - Witnesseth, that the party of the first part, for and in consideration of the sum of one hundred dollars to it in hand paid by the part — of the second part, being the first annual payment hereinafter provided for, the receipt whereof is hereby acknowledged, and in further consideration of the covenants and conditions hereof, to be kept and performed by the part — of the second part...
Page 396 - The formation of chlorides and sulphates of the various bases, and the separation of silica, would go on until the affinities of the acids were satisfied, and there would be a separation of silica, taking the form of quartz, and the production of a sea-water holding in solution, besides the chlorides and sulphates of sodium, calcium, and magnesium, salts of aluminum and other metallic bases.
Page 109 - ... or volcanic glasses. The atmosphere, charged with acid gases which surrounded this primitive rock must have been of immense density. Under the pressure of such a high barometric column, condensation would take place at a temperature much above the present boiling point of water, and the depressed portions of the half-cooled crust would be flooded with a highly heated solution of hydrochloric acid, whose action in decomposing the silicates is easily intelligible to the chemist.
Page 378 - Petrified wood. See Wood, 2. Petrify. To become stone. Organic substances, such as shells, bones, wood, etc., embedded in sediments, become converted into stone by the gradual replacement of their tissues, particle by particle, with corresponding amounts of infiltrated mineral matter. Thus not only the outward forms but even the minutest details of the organic tissues are preserved. (Roy; Com.) Petro. 1. A stone or rock. 2. A proprietary name for liquid petrolatum. Petrocene. A greenish-yellow hydrocarbon...
Page 384 - Engineers, the following resolution : (1) That all malleable compounds of iron with its ordinary ingredients, which are aggregated from pasty masses, or from piles, or from any forms of iron not in a fluid state, and which will not sensibly harden and temper, and which generally resemble what is called "wrought-iron," shall be called weld iron. (2) That such compounds, when they will from any cause harden and temper, and which resemble what is now called "puddled steel,
Page 284 - John. A Short Historical Sketch of the Rise and Progress of the Cleveland Iron Trade. Trans. Chesterfield Inst. Eng., vol. iii, p. 63, pi.
Page 218 - All these appearances conspire to prove that the materials which fill the mineral veins were melted by heat and forcibly injected In that state Into the clefts and fissures of the strata. These fissures we must conceive to have arisen, not merely from the shrinking of the strata while they acquired hardness and solidity, but from the violence done to them when they were heaved up and elevated in the manner which has already been explained.'* Ask the miner from whence has come the metal In his veins?