

««tefa 





^1 



• «w 





r-Q 



T7FT1 



SYMBOLS IN BLACK AND WHITE 

 Sandstone, f/rjfl, calcareous 



coarse 



cross-bedded, thin- bedded 

 bentonitic, pyritic 

 concretionary, brecciated 



conglom eratic 



arkosic, micaceous 



shaly, dolomitic 

 Conglomerate, gyp. 



arkosic, anhydritic 

 Si Itstone 

 Shale, gray, glauconitic 



red, micaceous 



sandy, calcareous 

 Limestone, coarse 



fine, dense 



sandy, cherty 



oolitic, fossiliferous 



shaly, gypsiferous 



dolomitic 



Figure 3-8. 



z=z: 



S 



-z^z, 



M> 



Dolomite, coarse 



fine 

 # oocastic, gas 

 sandy, shaly 

 o oil stained 

 Anhydrite, partly calc. 



Gypsum, with salt 

 Salt, with shale 



e> 3 Mega fossils 

 o Microfossils 

 <x> Concretion, nodule 

 n Pyrite 

 v Mica 

 v Glauconite 

 + Feldspar 

 x Benton ite 

 a Chert, fresh 

 a detrital 



$fe Carbonaceous matter 

 <t Oil stain 



• Oil production 



# Gas production 



vv Water production 



56 



