RATIGRAPHTO NOTES ON MALONE MOUNTAIN 
IND THE SURROUNDING REGION NEAR SIERRA 
5LANCA, TEX. 
By T. W. Stanton. 
GENERAL REMARKS. 
: has been deemed advisable to supplement Professor Cragin's 
'ontological paper by a brief account of the general geology of 
region in which his Jurassic fauna occurs. The data here pre- 
ed were obtained in 1897 and 1898 during two reconnaissance trips 
ertaken for the purpose of unraveling the obscure Cretaceous 
ion of the Sierra Blanca region and, if possible, of determining 
stratigraphic relations of the Malone Jurassic with the Cre- 
ous, as well as of making collections from all of the fossiliferous 
zons of the region. The stratigraphy of the Cretaceous was 
rmined fairly well, several fossiliferous horizons in the Jurassic 
Jalone Mountain were established, and interesting collections of 
ils were obtained from both the Cretaceous and the Jurassic, but 
rocks of the two systems were not found associated in the same 
inuous section, and their stratigraphic relations were not defi- 
liely determined. 
In 1897 two weeks were spent at Sierra Blanca station examining 
e outcrops within a few miles of that station and one excursion 
is made 25 miles southward, to the Rio Grande. In 1898 a month 
is spent in the region working with a wagon and camp outfit, but 
?n then many points could not be conveniently reached nor thor- 
crhly studied because, on account of the scarcity of water and of 
ids, camping places were limited in number. The area examined 
uprises parts of the Fort Hancock, Sierra Blanca, and Eagle 
mntain quadrangles, as mapped by the United States Geological 
rvey, extending from the Finlay Mountains on the north to the 
) Grande on the south and from the western foothills of Malone 
1 Quitman mountains to Devils Ridge and Eagle Mountain on the 
t. 
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