﻿1864.1 
  

  

  BLAKE 
  NEVADA 
  TERRITORY. 
  

  

  321 
  

  

  in 
  their 
  relative 
  positions 
  in 
  the 
  annexed 
  sketch-section 
  across 
  the 
  

   region 
  from 
  Lake 
  Bigler 
  to 
  the 
  mountains 
  beyond 
  the 
  Carson. 
  

  

  Fig. 
  1. 
  — 
  Section 
  from 
  Lake 
  Bigler 
  to 
  the 
  Mountains 
  beyond 
  

  

  Carson 
  River. 
  

  

  Bigler 
  Lake. 
  Washoe 
  Lake. 
  

  

  Carson 
  River. 
  

  

  C 
  C 
  M 
  T 
  B 
  

  

  C. 
  Granite. 
  

  

  P. 
  Porphyry. 
  

  

  P'. 
  Porphyry 
  of 
  Sierra 
  Nevada. 
  

  

  B. 
  Porphyry-conglomerate 
  and 
  

  

  breccia. 
  

   T. 
  Horizontal 
  sandstone-strata 
  of 
  

  

  Chalk 
  Hill. 
  

  

  T'. 
  €lay-slate, 
  with 
  bitumen 
  and 
  

  

  brown 
  coal. 
  

   S. 
  Line 
  of 
  Thermal 
  Springs. 
  

   V. 
  Virginia 
  City 
  and 
  Cornstock 
  

  

  Lode. 
  

   M. 
  Metamorphic 
  rocks 
  near 
  

  

  Genoa. 
  

  

  In 
  this 
  section, 
  the 
  plains 
  along 
  the 
  course 
  of 
  the 
  Carson 
  are 
  

   shown 
  in 
  the 
  foreground, 
  with 
  the 
  slight 
  exposures 
  of 
  the 
  horizontal 
  

  

  Fig. 
  2. 
  — 
  Sketch 
  of 
  Granite-masses 
  near 
  Carson. 
  

  

  strata 
  of 
  sandstone, 
  and 
  those 
  at 
  the 
  Chalk 
  Hill, 
  supposed 
  to 
  be 
  

   Tertiary, 
  together 
  with 
  the 
  outcrop 
  of 
  porphyritic 
  conglomerate 
  

  

  