BAD ROCKS CANYON SECTION 13 



Descending series. Feet 



1. Banded blue and gray arenaceous limestone. 700 



2. Dark bluish limestone in massive beds 650 



3. Greenish colored limestone, impure and with many small calcare- 



ous nodules » 1,600 



4. Dark bluish limestone (similar to number 2) 250 



5. Greenish, banded, massive argillaceous limestone 2,000 



6. Alternating green and purple argillaceous beds, massive layers 



passing (at about 100 feet) into sea green 450 



6a. Green, passing down into purple (same as number 6) 350 



6,000 

 No fossils ; no well denned base or summit. 



In the notes taken at the time the following occur: 



At Belton greenish shales and massive beds of calcareous argillite-like 

 rock dip northerly about 40 degrees. Bluish and banded limestones 

 come in on top of the greenish beds. The limestones are in heavy beds, 

 2 to 4 feet thick, and quite pure in some layers. No traces of life with 

 the exception of a Stromatopora-like form. The strike and dip of the 

 beds vary; but the section appears to be practically unbroken and to con- 

 sist of a portion of the "Castle Mountain group" of McConnell. The 

 railroad curves in and out along the strike, following the bends of the 

 Middle fork of the Flathead river. About 7 miles from Belton some 

 reddish beds of calcareous argillite appear along with the greenish beds. 

 There may be 2,000 to 3,000 feet of the limestone. 



It will be noted that at the time I thought that this series probably 

 represented a portion of the Castle Mountain group of McConnell. 

 Reference will be made later to this (see page 22). 



The notes further state : 



One mile and a half east of Paola the red shales (calcareous argillite) 

 appear in a railroad cut. Strike, north 80 degrees west (magnetic) : 

 dip, north 30 degrees. 



The red and green beds extend east of Essex to Java, where massive 

 bluish limestones appear. In cuts between Java and Bear creek is the 

 limestone. Strike, east and west (magnetic) ; dip, 20 degrees north. 

 The rocks are evidently the massive Castle Mountain limestones of 

 McConnell. The general strike swings to north 60 degrees east, and the 

 dip decreases to 15 degrees north. Two miles west of Bear creek a 

 syncline and fault occurs that brings up the green and red beds beneath 

 the limestone. 



Nyack Creek section* — At the head of Nyack creek a fine amphitheater 

 is eroded out of the red beds and superjacent calcareous shales and lime- 



* Notes were made September 19, 1895. 



