— 95 — 
Elevation of coal here, 249.1 meters. or 16.9 meters lower than 
the coal at Barro Branco Novo (266). Since the dip isquite rapid to 
the south-east at Barro Branco Novo, there can be no doubt that the 
coal found at Tijuco Preto is the upper division of the Barro Branco 
bed. 
This coal bed is exposed in a road cutting along the Estrada 
Nova at the crest of the hill 3 kilometers from Minas and 338.2 
meters above sea level, but is there thin as shown in the general 
section given on a previous page. It is possibly the same coal that has 
keen dug into at the head of Rio Pequeno, 7 1/2 kilometers from 
Minas near the Estrada Nova and 334 meters above sea level. 
On Rio Passa. Dots, one-half kilometer west from the mouth of 
Rio Carvao, thiscoal comes down to near water level at 268.9 meters 
above tide. 
At this locality a sheet of diabase has penetrated horisontally 
between the strata which overlie the coal, and in the steep left 
bank of the stream there is visible the following succession : 
Meters 
1, Massive sandstone, reddened by heat from the eruptive rock below . 4.57 
. Shales, dark and coaly, fragmental. . . . . . . + «© © . 0.66 
IDL DASG: ca Je, Se cep Ge a ate Ye Lie ae GELS ete a Rw, er, Ta ee 1.57 
. Conglomerate mass of shale, clay and decomposed diabase. . . . 0.23 
Shale, dark, fossil plants, anthracitized from heat. . . .. . 0.13 
Clay, dark blue . 2. 2 2 © 1 6 © © © © © 6 © oe eo 0.20 
- Comlimpure, 2 5 6 a ee we ee ee ee te ee O18 
. Shale, dark. «© . © «© © » © © © © © © © © © © » @ 0.20 
3 Shales; blues: 40x. a hn ek a ee Be ee ar the 0.15 
10. Clay, light blue . 2. 2. 6. 6 2 6 6 ee 8 ew we ew 0.28 
Pde Coaly fait 6) eo ee yp ge a aE at 0.18 
12. Clay,dark 2 1 6 6 gp 6 ee ee we ww we wt 0.08 
13. Coal, fair 2 6 6 6 7 ee we we ew we we ew 0.28 
14. Coal slaty 2. 2 6 6 ee 8 8 ee ee ew we we 0.15 
15. Sandstone, massive . . 6+ 6 «© © © © © © © © © © « 
OaONannrww 
The intrusion of the diabase has here apparently disrupted and 
broken up the upper bench of the coal, since Nos. 11 to 14 repre- 
sent the typical structure of the lower bench. . 
The Barro Branco coal appears to rise westward from Passa 
Dois about as fast as the bed of the stream since the same coal 
occurs 2 kilometers west at an elevation of 305 meters above sea 
level where it is 1.68 meters thick, with included slates. 
