78 ANNALS NEW YORK A0ADE3IY OF SCIENCES 



Feet Inches 

 Sandstone, gray, weathers brown ; contains clay-ball concretions 



in places , 8 



Clay, bluish gray ; contains a little limestone about 5 feet below 



top 28 6 



Clay, brick red, gray and purplish, sandy ; contains several thin 



beds of gray to white sandstone 116 



Sandstone, gray ; weathers brown ; indurated at base, conglomer- 

 atic and quartzitic in places, lenticular 5 



Clay, brick red, sandy 52 



Sandstone, brick red, massive 14 



Clay, brick red, sandy 12 



Sandstone, gray, conglomeratic; contains some interbedded gray 



sandy shale 58 



Sandstone, reddish, calcareous 17 



Sandstone, gray to white, soft, cross-bedded in places 10 



Sandstone, red and gray, soft, calcareous 42 



Sandstone, gray to white, soft, massive ; contains a little argil- 

 laceous material 87 



Sandstone, grayish brown, interbedded with gray and reddish cal- 

 careous and argillaceous sandstone 27 



Sandstone, white, weathers reddish brown 12 



Sandstone, red with streaks of green, calcareous 20 



Sandstone, grayish brown, with calcareous layers 50 



Sandstone, brown 2 



Sandstone, calcareous 5 



Sandstone, grayish brown, medium bedded 4 



Sandstone, red below and gray above, very calcareous ; contains 



many small nodules 40 



Sandstone, brick red, thin and medium bedded. This sandstone 

 is believed to be calcareous. It bears manganese ore in the 



upper part 128 



Sandstone, red, massive 400d: 



l,087y2 

 NORTHEASTERN UTAH AND NORTHWESTERN COLORADO 



The Flaming Gorge formations in northwestern Colorado and north- 

 eastern Utah have been described by H. S. Gale (1910, 6) as dark- 

 greenish shales and sandstones, with fossils. Above the fossiliferous beds 

 are 75 feet of dark thin-bedded, ripple-marked sandstone. This part of 

 the Flaming Gorge represents the marine Jurassic which is character- 

 istically represented in Wyoming by the Sundance formation. Above the 

 marine beds are 650 feet of varicolored beds, usually of light pink and 

 green. The Carnegie Museum of Pittsburgh has been operating a dino- 

 saur quarry in these beds near Jensen, Utah. The beds in this vicinity 

 are largely dark colored variegated clays, with interspersed layers of 



