Show SERVICE QUALITY U am UIT wa PRICE E electric I 1 ae CA t r i D CO S steel t ru arn I 1 cr am S I 1 n S ELECTRIC FURNACE castings 1 ib to lbs ibs capacity tons per month gray iron castings up to lbs machine shop equipped with complete installation of modern tools american foundry machine company offices to S ath west works to so ath west SALT LAKE CITY UTAH MINERAL DEPOSITS by WALDMAR LINDGREN william barton rogers professor of E economic geology in charge of af the department of geology massachusetts institute of technology geologist united states geological survey pages illustrations RIS net postpaid CONTENTS introduction deposits formed by concentration deposition of minerals of substances contained the flow of underground waters in the surrounding rocks by means of circulating waters deposits formed by regional the composition of underground metamorphism Alet formed by waters the chemical work of under deposits of native copper in ground waters basic lavas the origin of underground water lead and zinc deposits in sedimentary and its dissolved substances rocks in their genetic connection with igneous rocks the spring deposits at the surface deposits formed near the surface by ascending thermal relations of mineral deposits to waters and in genetic connection mineral springs with igneous rocks F folding and faulting deposits formed at intermediate depths by ascending thermal openings in rocks waters and in genetic connection form structure and texture of with intrusive rocks mineral deposits veins and replacement deposits Ore shoots formed by hot ascending waters classification of mineral deposits be deposits posits at high temperature and deposits formed by mechanical pressure and in genetic connection process of transportation and with intrusive rocks concentration deposits deposits formed by processes of igneous Alet metamorphism D deposits formed farmed by chemical mineral dikes deposits of pegmatite processes of concentration in bodies 0 of f surface waters mineral deposits formed by concentration cent ration in molten Alag hagmas magmas mas deposits formed by evaporation metamorphosed deposits of bodies of surface waters oxidation of metallic ores D deposits formed by process of rock calculation of analysis and representation decay and weathering resen tation by diagrams for sale by THE SALT LAKE MINING REVIEW WIE WE CARRY IN STOCK these 2 books compiled by the editors of the engineering and mining journal are of the greatest value to the man in milling or mining work handbook of milling details pages ia 6 9 illustrations net postpaid CHARTER HEADINGS I 1 sampling 11 II oredoes ore dressing breaking crushing and grinding ill III ore 0 dressing washing separating and concentrating IV accessory apparatus for ore dressing V notes on the equipment of metallurgical lurg ical plants VI processes VII smelting smelling Sm elting vill VIII refining handbook of mining details pages fully illustrated net postpaid S CHAPTER HEADINGS 1 I general notes IL II 11 explosives ill III rock drills IV shaft Shaf work V 1 ing adits adias and drifts VI VIL VII head frames chutes pockets eta i VIII hoisting and transportation buckets X A IX skips cages cars and safety appliances for hoisting and ing XII pumping and drainage xu ventilation and compressed air r THE SALT LAKE MINING REVIEW distributors 1601 walker bank building salt lake city utah |