CLASSIFICATION OF ORE DEPOSITS. 51 



1. Lagerstocke Linsenstocke, Linsen. (Len- 



ticular deposits, etc.) 



2. Stocke, Butzen, Nester, etc. (Masses, 



pockets, etc.) 



3. Stockwerke. (Stockworks.) 



(14) 



A. von Groddeck, Lehre von den Lagerstatten, etc., 1879, p. 84. 

 I. Ursprungliche Lagerstatten (Primary deposits). 



A. Gleichzeitig mit dem Nebengestein gebildet. 



(Formed at the same time with the walls.) 



1. Geschichtete. (Stratified.) 



(a) Derbe Erzflotze. (Entire beds in fossiliferous 



strata.) 



(b) Ausscheidungsflotze. (Disseminated in beds.) 



(c) Erzlager. (Lenticular beds, mostly in schists.) 



2. Massige. (Massive; the word is nearly 



synonymous with igneous.) 



B. Spater wie das Nebengestein gebildet. (Formed 



later than the walls.) 



3. Hohlraumsfullungen. (Cavity fillings.) 



(a) Spaltenfiillungen oder Gauge. (Fissure fillings 



or veins.) 



(1) In massigen Gesteinen. (In igneous rocks.) 



(2) In geschichteten Gesteinen. (In strati- 



fied rocks.) 



(b) Hohlenfiillungen. (Chambers.) 



4. Metamorphische Lagerstatten. (Altera- 



tions, replacements, etc.) 

 II. Triimmer-lagerstatten. (Secondary or detrital deposits.) 



(15) 



R. Pumpeliy, Johnson's Encyclopaedia, 1886, VI. 22. 

 I. Disseminated concentra- 

 tion. 



(a) Impregnations, 



Fahlbands. ., ., . , . 



TT . , . ure of the inclosing 



II. Aggregated Concentration. . . 



3 . & T . [- rock, or to its mineral 



(a) Lenticular aecgrega- ^., ,. , , 



v ' . TIT constitution, or to both 



tions and beds. 



/lx T . causes. 



(0) Irregular masses. 



(c) Reticulated veins. 



(d) Contact deposits. 



Forms due to the text- 



