26 The American Geologist. juiy. 1901. 
Arkansas since 1891.* practically ni) shi])nicnls have yet been 
made, thotigli active ])re])arations are now under way for a 
larg"e output in the near future. The mode of occurrence and 
genesis of the deposits in the Georg'ia-xA.labama and Arkansas 
districts are entirely dilTerent.t 
The Georgia-Alabama deposits have been studied in con- 
siderable detail by S])encer4 Hayes, || and McCalley,§ and 
theories to explain their origin have been independently ad- 
vanced by Spencer and Hayes, which 'dififer greatly from each 
other. While the writer's views concerning the Georgia-Ala- 
bama bauxite region are essentially the same as those stated 
bv Dr. Hayes, the data and conclusions in this paper are based 
primarily on a detailed field study of the same region during 
1899. 
Since the physical conditions of the bauxite, including form 
and mode of occurrence, and the intimate relationship in the 
distribution of the deposits to the structural features of the 
region are important factors, which bear directly on the gene- 
sis of the ore bodies, it is necessarv to first briefly review the 
general geological conditions of the area, embracing a general 
description of the ore and its manner of occurrence. 
RESUMfi OF THE GEOLOGY OF THE BAUXITE 
AREA. 
The distribution of the ore-bodies is shown on the accom- 
])anying map (Plate vii.) As there shown, the deposits are 
found within a narrow belt of country, extending from Adairs- 
ville, Georgia, southwestward into Alabama. A few scattered 
deposits occur outside the limits of this lielt near Calhoun in 
Gordon county, and in the vicinity of Summerville in Chattoo- 
*Brannrr, JoH.M C, Bauxite in Arkansas, American Geologist, \H9X, \o\. 
•vn, pp. 181-183. 
Ibid, The Batixite Deposits of Arkansas, /our. Geo!., 1897, vol. v. 
Wn,LiAMS, J. Fkancis. Igneous Rocks of Arkansas, Arkansas Geol. Survey, 
Annual Report for 1S90. vol. ii. 
fHAYES, C. WiLT^ARD, The Arkansas Bauxite Deposits, U. S. Geol. Survey 
(in press, t 
JSpencer, .1 W., The Paleozoic Group. The Geology of Ten Counties of 
Northwestern Georgia, Geological Survey of Georgia, Atlanta, 1893. 
IIHayes, C. Willard, The Geological Relations of the Southern Appala- 
chi.Tn Bauxite Deposits, Trans. Anier. Inst. Min. Engrs., 1894, February, \'ir- 
ginia Beach Meeting, Author's Edition, 12 pp. 
Ibid, Bauxite, Si.Kteenth Annual Heport U. S. Geol. Survey, 1S9.5, Part iii, 
pp. 547-597. 
§McCalley, Henry, Alabama Bauxite, Proc. Ala. Industrial and Sci. Soc. 
1893. 
Ibid, Report on the Valley Regions of Alabama, Part. II, On the Coosa Val- 
ley Region of Alabama, Geol. Survey of Alalj^enia. 1897. 
