586 W. T. LEE STRATIGRAPHY OF COx^L FIELDS OF NEW MEXICO 



Feet In. Feet In. 



Animas 

 formation 



"Laramie" -* 



Sandstone, brown, fine-grained, with round 



sandstone concretions 8 



Shale, irregularly bedded, gray, friable 1 



Sandstone, brown, coarse-grained, igneous 



matrix 4 



Sandstone, yellowish and locally reddish. ... 1 



Sandstone, drab-colored weathers reddisli, 

 igneous matrix 15 



(Unconformity by erosion, and discordance 

 of dip.) 



Shale, yellowish, with sometimes a white 



sandstone near the top 50 



Shale, drab-colored with some thin sandstone 100 



Sandstone, massive, light colored 20 



Shale, tan and gray 90 



Sandstone, massive, soft, gray 12 



Shale and soft sandstone containing at the 

 base Vnio holmesianus White ; Vnio sp. ; 

 Corhicula sp. ; Corhula suhtrifjonaUs M. & 

 H. ; Tulotoma tlioinpsonl White; Gonio- 

 hasis ? sp. ; Campeloma 1 sp. (U. S. G. S. 



locality No. 6063) 20 



Sandstone, massive, rather hard, gray. ..... 20 



Shale, bro-^Tiish, and thin, soft sandstone. . . 320 



Sandstone, friable, gray 



Sandstone, brown, contammg B rachyphyU Km 

 Diacrocarpum Newb. and Sequoia reichen- 

 hacU (Gein.) Heer (U. S. G. S. locality 



No. 5462) 2 



Sandstone, gray 15 



Shale and some thin sandstone 30 



Shale and thin sandstone, containing Se- 

 quoia reichenhaclii (Gein.) Heer; Carpi- 

 tes sp. ; Juglans sp. ; SaJi.v sp.? (U. S. G. S. 



locality No. 5463) 19 



Coal bod 1 



Shale and thin sandstone 10 



Sandstone, soft in several beds 35 



Shale 8 



Coal bed "C" 3 



Shale, carbonaceous 15 



Coal bed 



Shale, dark and drab 20 



Sandstone, luassivo. gray with calcare- 

 ous layer iu\-ir base 50 



Sandstone and shale, containing PJiohis ? 

 sp. ; (joniohasis ? sp. ; Canipelotna 1 



2,091 8 



