200 



INDEX 



Sedimentary rocks Continued 



organic tl 



thickness 46 



Senator mine. ... 7.84,97.98,99, 104. 108,107. 112. 113, 

 115. 123, 124. 1S8, 166, 168, 191, 193 



history Iff 



location and extent of workings 1S8 



Nones shaft 158, . 161, 162 



production 183 



Senator Incline 188 



dumps, submarglnal quicksilver ore 171 



Working shaft (Old Vertical winze) 158 



Senator prospect 1M 



Serpentine 10.47. 



79, 82, 126, 130, 132. 146. 148, 156, IIS, 173 



age t7 



alteration. S3. SO 



btocky 41, 4, 85, 56, 60 



chemical composition 64 



distribution 47 



megascopic features 4? 



microscopic features SO 



origin 14 



sheared 47. 49, 50, 53, 56, 88 



Sexton. Qeorgc 189, / 



Sexton, Mary Lord. 193.108 



Sexton, William Lord 103 



Shale, Eocene, Santa Teresa Hills 88 



Franciscan group 10, 13, 14, 16, tl, 18, 108 



associated with chert 28 



Late Cretaceous age in Santa Teresa Hills. 8 



Upper Cretaceous rocks IS 



Shannon fault 46.82.87, W 



Shear tones 90 



Sllstone, chemical features. in 



megascopic features 17 



microscopic features 18 



Sierra Anil 6,10,47,81 



Sierra Aiul fault 86,88,0* 



Sierra Aiul Ridge 01 



SilkB-carbonate rock 47, 



53, 18, 50, W, 101, 108, 130, 132, 133, 

 134, 138, 13V, 142, 148, 149, 150, 152, 

 184. 186, 161, 162, 168, 109, 187, in, 

 173, 176, 176. 



age 64 



chemical composition 61 



cinnabar ore formed In veins or vugs. 104 



denned 88 



distribution S8 



hllo fractures 110 



lens 189 



megascopic features W 



microscopic features 60 



most favorable for ore deposition 108 



No. 1 vein. 181 



No. 2 vein It* 



No. 3 veto 181 



orrs farmed by replacement IOS 



origin 91 



tension fractures 96 



formation of ore 104 



811lca~carbonate rock breccia, landslide 134, 



188, 187, 188, 171 



Sills, carbonntlted serpentine 116 



serpentine 84, 



110, 112, 113, 118, /.W, 132, 134, 136, 

 137. 138, 139. 142, 145, 146, 147, 148, 

 182, 184, 160. 162, ITS, 178. 



Page 



Smith, J. P., cited 4.'. 



Soda Spring fault 85,88,.'</ 



Soda Springs tunnel 1 128, ISt 



Soil, developed on graywacke IS 



from conglomerate 65 



on sheared serpentine. 49 



Source of the solutions that deposited the 



quicksilver ore 73 



South Randol area, A merica shaft 144, 145, 1S7 



History 144 



St. George shaft 98,144,145 



Santa Isabel shaft.. - 144,145 



South Randol ore body, No. 2 148 



South Randol ore bodies 113, 



123, 138, 139, 144, 145, 173 



Spilite 35.J6.J7 



Stanford University 126 



Subsurface geology, New Almaden mine Its 



Suggestions for further development, America 



mine Ill 



Central slope area Ii8 



Cora Blanca mine 133 



Enriquita mine ISS 



Ouadalupe mine 168 



Harry area 136 



North Randol area 143 



San Antonio mine 166 



San Mateomine ISS 



Santa Mariana area 149 



Senator mine ISt 



Velasco area 138 



Victoria area 141 



Surface geology. New Almaden mine 128. 130 



Swett, Leonard 182 



Swinney, C. M., determinations of crystals... 33 



Taliaferro, N.L., cited.. 29, 30, 42, 44, , 46, 87, 78. 78 



Tathum, J. F 1U 



Temblor formation 10, 71 



folds 8 



Temperature 6 



ore, deposition 123 



Todd, Ruth, cited 28 



Topography S.48.90 



Tuff-breccia 73 



nontachylltlc. 33 



megascopic features 3S 



microscopic features 34 



tachylltic 34 



megascopic features 55 



microscopic features 31 



Treatment of ore ISS 



Turner, F. J., cited 64 



Tuttle. O. F., cited ..88.86 



Upper Cretaceous conglomerates, Sierra Aiul. 169 



Upper Cretaceous deposits 10 



Upper Cretaceous rocks, possible correlation 



and age tt 



Santa Teresa Hills 97,89 



folds 8 



Sierra Anil M.69.84 



folds.... 88 



Page 

 Upper Cretaceous sandstone, Santa Teresa 



Hills 16 



U.S. Bureau Mines 7,168.171 



U.S. Congress, cited 180 



U.S. Federal Court 181 



U.S. Supreme Court 176,182 



cited 186 



Vegetation 6.90 



"Vein" (silica-carbonate rock) 161.185 



Vein rock 58 



Veins, antigorite 49 



calcite 14,28,31,41.101 



carbonate 166 



chlorite 36 



chrysotile 53,60 



chrysolite asbestos 49 



cinnabar IOS, 130, 132, 149. 155, 158, 162, 189 



dnnabar-quarli 98 



crocidolite 43 



dolomile 95, 



99, 100, 105, 132, 133, 134. 149, 158, 162 



dolomite-quart! 133,169 



froth-veins 101. 105 



hllo 96, 



99,101.104,134. 137, 138. 141, 143, 146, 

 147, 149, 151, 165, 166, 168, 172, 175, 176. 



hydrocarbons 95, 132 



quart! 14, 28, 31. 36. 40, 95, 99, 101, 122, 132, 149 



quartz-carbonate 111,150,151.165 



quartz-dolomite 08.102 



Velasco area. Bush tunnel 135 



Eastern lunnel 135,142 



history ISS 



localion and extent of workings I3S 



Santa Maria shaft 133, 135, 173, 190 



Velasco mine 13S 



Velasco ore body 138./7J, 182 



Velasco stope 113,132.136 



Theatre stope 136 



Victoria area 137. 13 



Giant Powder-Ponce ore body 141 



Olant Powder- Ponce stope 05,113.141 



history 139 



location and extent of workings ISS 



Santa Rltashaft. 187 



Santa Rita West stope 113 



Victoria ore bodies 138,175 



Vlctoriashaft 190 



Vllsidls, A. C., analyst 24 



Volcanic rocks. See greenstones. 



Vugs, cinnabar lOf 



dolomite 100 



Wagoner, Luther, cited 107 



Warshaw, Israel, analyst 100 



Weathering of sandstone. Upper Cretaceous 



rocks In Santa Teresa Hills tl 



Wells. W. V.. cited 177. 179 



William I of Prussia. King / 



Woodrlng, W. P.. quoted 71 



Yaqui Indians tit 



Yellow Kid Jr. workings Ill 



O 



