The deposits of the useful minerals & rocks; their origin, form, and content . eposit both in strike and dip. The deposit in plan forms two ore-bodies, namely, the south-west orold bed and the north-east or new bed, these, representing the two trans- THE PYRITE BEDS 1U5 versely dislocated portions of one and the same deposit, being connectedby scattered broken fragments. The Goslar slates strike about north-east, are very poor in fossils,and dip at an angle of 45°-50° towards the south-east. Some years agoGoniatites were met in the ore-bed, while recently in the foot-wall slatea 0-5 m. bed con
The deposits of the useful minerals & rocks; their origin, form, and content . eposit both in strike and dip. The deposit in plan forms two ore-bodies, namely, the south-west orold bed and the north-east or new bed, these, representing the two trans- THE PYRITE BEDS 1U5 versely dislocated portions of one and the same deposit, being connectedby scattered broken fragments. The Goslar slates strike about north-east, are very poor in fossils,and dip at an angle of 45°-50° towards the south-east. Some years agoGoniatites were met in the ore-bed, while recently in the foot-wall slatea 0-5 m. bed containing Pinacites Jugleri R., Bactrifes gracilis, andOrthoceras, was found. Here and there quartzite beds are intercalated inthe slates. One of these in the hanging-wall, exposed in the Juhus-Fortunatus adit, carries sphaerosiderite concretions with frequent organicremains and veins of pyrite, quartz, and barite. The separation between the ore-body and the country-rock is generallysharp. The old bed is often accompanied by a fine clay-parting, while Shlnberg Rammelsberg -. Fig. 450.—Section and plan showing the geological position of the Rammelsberg pyrite bednear Goslar. Klockmann. the new bed, discovered only in 1859, exhibits in the hanging-wall a tritur-ated slaty material of variable thickness, resembling lode-slate and knownlocally as Anhack. This material is sharply separated from both ore-bodyand country-rock, and consists of deep-black slaty material with numerouspressure surfaces and slickensides. Since also it is traversed by manyveins and fractures filled with gangue and ore-minerals, it bears all theevidences of being a disturbance zone. More complicated is the separationof the ore from the country-rock around the finger or tongue of pyritewhich projects from the main body into the slates. In this branch bodyalternating layers of ore and slaty material, the so-called slate-band ore,occasionally occur, in which the thickness of the metalhferous layers
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
