TT224. 225 



l!(i GROUP VI r.\ I; \ v |JH VNDON. 



145 



I ;mn OF VTICKSBURG STRATA, \lioVl. BYRAM STATION, 

 RANKIN COUNTY. 



Shells ,of the Vicksburg Group, but more especially Orl Ifantelli&nd 



n Pouhom, occur in all these strata. 



224. At Mr. German Berry's, S. 11, T. 4, R. 2 E., (Monterey P. ().), Rankin 

 county, we find a blue, sandy glauconitic marl containing Orbitoides, Area 

 Mississippicnsis, Peden Poulspni, Cijtherea imitabilis, etc., cropping out on the 

 banks of Richland Creek. It is overlaid by brown, laminated, gypseous clays, 

 which form the main body of the hills. 



The chief outcrops near Brandon have already been noticed in the general 

 profile, so that a few generalities only require to be added. The town of Bran- 

 don itself is situated on a high ridge composed partly of Orange Sand, partly of 

 the lignitic strata, which are struck in wells in the S. part of the town, furnishing 

 water strongly impregnated with sulphuretted hydrogen, gypsum, and, usually, 

 magnesian salts ; in some instances, sulphate of alumina. Crystals, rosettes and 

 lamina? of gypsum, are very abundant in the lignitic strata of the Brandon 

 neighborhood ; in connection with the gypsum, either incrusting it, or intimately 

 mixed with crystals of the same, there occurs a mineral of a sulphur-yellow 

 color, apparently amorphous, but minutely crystalline under the microscope, 

 which consists essentially of hydrated persulphate of iron and sulphate of 

 potash ; probably the Mis//, or Yellow Iron Ore. The same occurs at Shongalo 

 (H183). 



In Mr. Ware's well, S. of town, at a depth of 3S feet, Orbitoides limestone 

 was struck, after passing through the lignito-gypseous strata ; and it appears on 

 three sides at the footof the ridge. Thus, due S. of the town, on S. 34, T. 5, R. 

 3 E., on Richland Creek ; near Dr. Parker's, S. 27, where it appears in ledges 

 2 to 3 feet thick, but not, apparently, continuous for any great distance. The 

 character of the outcrops in A. P. Miller's field, N. W. ot Brandon — SS. 17 and 

 20, T. 5, R. 3 E., has been given in the general section (11218) ; the strata 

 comprehended in No. 2 form hills or low ridges, with a general bearing E. N. E. 

 to W. S. W., and which, according to elevation, are capped with the limestone 

 strata Nos. 3 and 4. An analysis of the rock from No. 3, taken at Yost's lime- 

 kiln, is given below. 



225. Similar hills capped with limestone or •"diitish marl appear, further on 

 in a N. E. direction, at Mr. Jos. Jayne's plantation, and at Rev. I). A. Campbell's 

 place, S. 2, T. 5, R. 3 E. At the latter locality we find, included between two 



R— 10 



