ae ee 
The general dip of the beds is westward along this highway, 
but in an irregular manner, owing to the presence of dikes of basalt 
Which often tend to reverse the general dip for short distances, 
hence in the measurements given an allowance for dip has been made 
Which adds to the thickness given by the levels, but this is princi- 
pally in the upper or Triassic portion of the section where the 
westward dip is most pronounced. 
In descending from the summits of the Serra Geral, near Julio 
Dhern’s along the Estrada Nova to Minas, or Lauro Muller, 
the terfninus of the D. Thereza Christina railway in the state of 
Santa Catharina, the following section was constructed : 
METERS. 
1. Kruptive rocks, mostly diabase, amygdaloidal and 
2. 
otherwise. ; 
A series of massive, gray ant a sauiistones aut 
conglomerates with intruded sheets and dikes of 
diabase 
. Red sandstones and shales.a a Massive rad saniistone at the 
base resting with slight unconformity upon the under- 
lying limestone, approximately . 
. Limestone (Rocinha), gray, hard, sparingly fowsiliferous, 
minute forms, apparently fresh or brackish water 
. Variegated shales with flinty nodules . . . 
. Shales, often black (Iraty), and weathering bluish geag, 
holding many silicious nuggets near top. 
. Gray shales and sandy beds, a series of gray, or varie- 
gated sandy shales, and muddy sediments, always mak- 
ing bad roads . 
. A series of grayish white, and apellsigulal ganiatones, 
and conglomerates interstratified with drab and 
bluish-gray shales with several coat beds, the shales 
holding the typical Glossopteris flora of South Afeica, 
India, etc., and having a coarse ( Orleans ) conglomer- 
ate at base, thickness. 
. Shales and sandstones to aiiocliba in hana hole; 
Total thickness of sedimentary beds 
To which if we add the eruptive beds. 
We get a grand total of 
600 
200 
150 
90 
163 
27 
803 
600 
1403 
station, 
— meters of rock thickness from the top of the eruptive beds on 
the Serra Geral near Julio Dhern’s down to the granite floor 
sedimentaries. 
of the 
