| | Book | Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay)...(Fig. 28-12). The gold deposits in the Georgetown district are of Proterozoic age. From Branch (1966), with...but there are minor exceptions. In the La Plata district N.W. of Durango, Colorado (Eckel et al., 1949;...contact. 1037 Fig. 28-17. La Plata Au,Ag,Pb,Zn district, S.W. Colorado, showing distribution of ore veins...altered hypabyssal intrusions as in the Alice Arm district, Adanac, Salal Creek. All the deposits of the | | | Book | Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay)...(Fig. 28-12). The gold deposits in the Georgetown district are of Proterozoic age. From Branch (1966), with...but there are minor exceptions. In the La Plata district N.W. of Durango, Colorado (Eckel et al., 1949;...contact. 1037 Fig. 28-17. La Plata Au,Ag,Pb,Zn district, S.W. Colorado, showing distribution of ore veins...altered hypabyssal intrusions as in the Alice Arm district, Adanac, Salal Creek. All the deposits of the |
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