246 C. L. HERRICK 



Massive limestone - - 48 ft. Sandy lime - - - 17 ft. 

 Shaly limestone - - 47 Massive limestone and San- 

 Massive limestone - - 15 dy shaly lime - - 28 

 Shales (Flint Ridge beds) ^^ Fusulina cylindrica beds 

 Green quartzite - - 2 Shales - - - - 28 

 Massive limestone (produc- Top 0} Sandia formation (119 ft.). 



tus) - - - - 12 Sandy shale, with bands 



Nodular shaly lime - 2 of limestone, alternating 



Massive limestone - - 30 vi^ith quartzite - - 45 



Black shaly lime - - 48 Silicious fossil hme - 2 



Massive hme - - 3 Sand and shales - - 22 



Lime and lime shales - 40 Basal quartzite - - 50 



Sandstone (a) - - 2- 4 Granite or gneiss. 



Near the locality in which the Coyote section was measured a 

 section was taken which is more complete toward the top and serves 

 to supplement the above section. That part of it above the Coyote 

 sandstone horizon is here given : 



Manzano quartzite, red and yellovir granitic sand, and conglomerate 



with silicified wood and granitic pebbles - - - - - 55 ft. 



Top oj Upper Carboniferous. 

 Earthy lime with lime breccia, etc. - - - - - - - 50 



Earthy lime with green bands (bryozoa) ------ 25 



Earthy cherty lime {Productus punctatus) ------ 16 



Massive lime {Productus cora) -------- 25 



'BXa.c^i shaly Wme {Dielasma hovidens) - - - - - - -17 



Bryozoa beds. 



Gray lime {Fusulina robusta ?)--------6 



Massive lime - - - -■- - - -- - - 22 



Coyote sandstone horizon. 



Below this point the section corresponds essentially with the sec- 

 tion given above. This corresponds to a total thickness of the Coal 

 Measures of 750 feet, of which about 130 feet is formed by the Sandia 

 beds. The section east of Socorro contains about 600 feet, of which 

 235 feet is contributed by the Sandia beds. 



■ In order to indicate the amount of variation in the same region, a 

 section is here given corresponding with that last above recorded and 

 taken only a short distance east of it in the Coyote district: 



Massive earthy lime with Bellerophon, Productus punctatus, etc. - - 72 ft. 



Allorisma and numerous fossils. 



Sandstone ------------40 



