— 1214 — 
Shale, dark , 
Shale, greenish. . ee REO OS 
Shale, dark. 2 . . . 1... BAB 
Coal . aa Re SY cheese . . | 
Shale, dark. . . . . 1... 11 
COG ee ee a ee ee oe RO 
Shale,dark . . . F » » 0.85 
COG Ne sigs he aS ages 0.25 
Shale,dark . . . . . i ‘ 2.56 
Coal So i rene. “Boeke ore haven Seba 0208 
Shale,dark . . 2. . 1... . B00 
Coal . . ea cle A ow ap) er 40830 
Shale, light anddark. . . . .. . =. , 7.50 
Sandstone, ashy colored . ee Ae Re 2.80\ 
Sandstone, shaly, light and dark with granite Rio Bonito Beds 170.61 
(boulder) 1 meter thick at 5.40, and conglo- 
merate 60 centimeters thick at 18.50 meters, 
total thickness. . . . +» 27.60 
Conglomerate. . . 2. 2... 1. we 0685 
Interval ». 2... we ee, » . 2.00 
Sandstone, shaly . . . .. . © ~ « 19.74 
Shales, dark, micaceous, with much pyrites. . 38.90 
Shale, black, coaly . eo ae * we & 800 
Shale, dark . 2. 2... 1. we ee 605 
COGE a ie ea Sw OOS 
Shaledark. «2 2. 6% % ws » 6 » «@ 5 2273 
Shale, light, with pyrites. . . . . . . . 5.10 
Conglomerate (Orleans). . 2. . 2 6 1 ee ew ew ew ee ew 4.00 
Granite, red to bottom . . ..... St sees. So ave 6.80 
Total. 2 6 wi we Pe ew Oe me we ws «= BAB 
This boring gives a measurement of 170.61 meters for the thick- 
ness of the latter to the solid granite In the Minas region of Santa 
Catharina this interval is about 190 meters. 
As may be seen from these records, several small coal seam- 
were struck below the S. Jeronymo hed, yet none of them was thick 
enough to prove ofeconomic importance. A small coal, 20 to 380 centi- 
meters in thickness, is nearly always found at 8 to 12 meters above the 
S. Jeronymo bed and this thin seam would correspond with the Tres- 
viso coal of Santa Catharina. 
53569 16 
