The deposits of the useful minerals & rocks; their origin, form, and content . Sforch Korrifngf. r ommei^ fisenkammer -(?T- T. Fig. 359.—Features of the iron lodes. 798 OEE-DEPOSITS cases of this having occurred at the Alte Lurzenbach, Neue Haardt,and St. Andreas mines. A dependence of the width upon the natureof the country-rock has been noticed in so far that lodes in medium hardor compact rock are the widest, while in the more compact and in thesofter slaty rocks they are smaller. The lead-zinc lodes on the wholeare narrower than the siderite lodes, solid ore-bodies of large siz
The deposits of the useful minerals & rocks; their origin, form, and content . Sforch Korrifngf. r ommei^ fisenkammer -(?T- T. Fig. 359.—Features of the iron lodes. 798 OEE-DEPOSITS cases of this having occurred at the Alte Lurzenbach, Neue Haardt,and St. Andreas mines. A dependence of the width upon the natureof the country-rock has been noticed in so far that lodes in medium hardor compact rock are the widest, while in the more compact and in thesofter slaty rocks they are smaller. The lead-zinc lodes on the wholeare narrower than the siderite lodes, solid ore-bodies of large sizebeing seldom seen; payable masses of large width are more often madeup of country-rock traversed by numerous ramifying veins. The country-rock along the siderite lodes has either suffered noalteration at all or but very little, though the occurrence in it ofsiderite replacing quartzose material may often be observed. With thespecularite- and haematite lodes, on the other hand, pronounced decom-position of the country-rock accompanied by bleaching, is common so longas the ore continues, and accordingly ore-deposition a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
