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Book Chapter

Sixth Day

Published:
January 01, 1990

Abstract

The first part of the day will be spent in the Zacatecas district with discussion of the local geology and mineralization in relation to the eroded, Zacatecas caldera. Thereafter, the route continues across the Mesa Central to the southeastern part of the state where the Real de Angeles deposit is located. This open-pit operation occurs in carbonaceous sandstones and siltstones of Cretaceous age. Mineralization occurs in veins and veinlets that have stockwork characteristics, although sulfides also occur along bedding planes. Recoverable values of silver, lead, zinc and cadmium are derived from the ore. Alteration within the sulfide zone consists of silicification and thin envelopes of propylitic and potassic alteration around fractures. The remaining part of the day follows the route (Fig. 52) that continues southwards through Aguascalientes and then southeastwards, passing through Lagos de Moreno and León, to Guanajuato.

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Contents

Society of Economic Geologists Guidebook Series

Mexican Silver Deposits

K.F. Clark
K.F. Clark
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Society of Economic Geologists
Volume
6
ISBN electronic:
9781934969595
Publication date:
January 01, 1990

GeoRef

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