[1205 



M ' S ' rTT HILLS — .1 AC KSON . 



131 



(Sec. 27.) 



SECTION OF JACKSON STRATA, AT MOODY'S BRANCH AND 



McNUTT HILLS. 



No. 6 of this section may correspond to the gray calcareous clay seen N. of 

 Jackson. It seems, however, that in No. 7 also, sandy and clayey materials 

 alternate more or less. 



205. On Pearl River, just above and at the bridge, strata No. 4 and 5 appear 

 i athe led of the river, the whole being, apparently, of a bluish tint, and its fossils 

 well preserved. The bluff at the bridge, and the hillsides below the State House 

 exhibit the yellow surface loam, adn sometimes pebble beds underlaid' 

 by greenish yellow, massy clay or loam, which lower down becomes bluish- 

 white, and in all respects similar to stratum No. 2 of Sec. 26 (Montgomery cut) 

 containing soft calcareous veius and concretions. Beneath these, 15 to 25 feet 

 below the hilltops, we find yellow calcareous sand with numerous corals and 

 imperfect casta of shells, and the same concretions as in the clay above. Beneath 

 this stratum, which is 12 to 18 feet thick, there appears, in the bed of the river 

 the blue sandy marl with Jackson fossils — strata Nos. 4 and 5 of the preceding 

 section. The same strata, the matrix of the "Jackson shells," also crop out on 

 Dry Creek, S. of Jackson, where, as well as at Moody's Branch, I have obtained 

 fine collections of fossils. They are also seen on the opposite bank of Pearl 

 River, to the left of the road embankment, and in the bed of the river below 

 Jackson for several miles. 



