Sr, C and O isotope systematics in the Pucará Basin, central Peru: Comparison between Mississippi Valley-type deposits and barren areas

2 Groups B, C, and D correspond to specimens of the ore-bearing San Vicente Dolomite and San Judas Dolomite and Group A also includes host rocks of other lithologic units for

Thus, for reasons previously mentioned, the sulfur isotope distributions observed in sulfides of San Vicente together with other geologic and geochemical data are interpreted to

The precipitation of the syn- and post-ore carbonate generations involve mixing of the native formational fluid (e.g. parent fluid of the unaltered host dolomite) with a

The host and gangue carbonates from San Vicente main deposit dispby a general tendency towards lower isotopic composition in the sequence <lark replacement dolomite

In this work two methods were used to overcome the disturbing effects of sulfides and organic matter: (1) sample pretreatment following the method proposed by Charef and

The following carbonate generations were selectively studied: dark replacement dolomite (DRD, I), white sparry dolomite (WSD, II), late filling dolomite (LFD, III) or

[ 1 ] The results of a paleomagnetic study along the fore arc of southern Peru (15– 18S) and northern Chile (18– 19S) are reported from middle to late Miocene ignimbrites (7

The Three Villages Robe tells the story of the French and Quapaw‘s alliance to struggle against common enemies facing east from Indian country. Painted after the French-Quapaw raid