205 FKH.MOU : GEOLOGY AND COAL RESOURCES OF KOREA, C. P. 
of the Kaolin Nala. The Kaoria Nahi below the Karar Khoh 
is shut in on either bank by vertical cliffs of Barakar sand- 
stone some 80 to 100 feet high, and their debris hides the underly- 
ing coal seams, except where mentioned above. As the result 
of careful measurements the following section has been constructed :— 
j' 0' 
0' 
4' T 
V 6' 
4' «- 
11- 
0' 
4' 0- 
6' 
4" 
0' 
1' 
2' 6- 
12' 0* 
1' 0* 
12' 0' 
Coarsc-nriiiiicd saiulsti)rii'S 
Carliiniiici'Dus shale .... 
Jii ililril, liiii -^'iaineil, aryillaeeous oaudstniu- 
liilciiainiiiated saiulstoiii's and shales 
Carbonaeeous shale .... 
Seam /.—Banded bright and dull eoal 
Carbonaceous shale .... 
Carbonaceous sandstone with black shale (th( 
l)art of the waterfall begins here). 
Seam 2. — .Similar eoal to seam 1 
Black shale ...... 
Seam 2A. — Bright coal 
Coaly shale ...... 
Seam 3.— Dull eoal with thin bright layers 
Black coaly shale ..... 
Seam :iA — Mostly bright coal — rather pyritic 
Micaceous sandstone (th(! surface of the pool 
14' below the top of this). 
Black shale ....... 
Seam 4. — Mostly silky or dull coal 
steep 
Sample K. 5. 
Samples K. fi, K. 7. 
Samples K. 2, K. 8. 
Sample K. 8. 
„ K.9. 
Samples K. 4, K. 10, 
K. 11, K. 12. 
TOTAL . 91' 9' 
Black shale . 
Seam 5.— Similar to 4, except for basal 2 feet. Samples K. 13, K. 14 
which is brighter coal. 
Fine-grained argillaceous sandstones passing down i 
into typical coarse-grained sandstones. j 
91' 9" containing 37' S" coal. 
For comparison with the section, I give below the results of 
analysis of the samples taken. K. 2, K. 3, and K. 4, represent 
merely selected specimens, whilat the others are all bulky samples 
taken to represent the fidl thickness sampled. K. 2 represents 
a 3" band of entirely dull coal in seam 3, and K. 3 the 13" band 
of coaly shale between seams 3 and 3A, whilst K. 4 is a typical 
piece of dull coal from seam 4. The analysis of K. 3 is surpris- 
ingly favourable, and if future work confirms this result, then 
obviously seams 3 and 3A and the intervening coal shale can be 
worked as one seam of 5'9" thickness. Unfortunately no speci- 
mens or samples of the shale separating seams 2 and 2A, and 
seama 2A and 3 were taken ; but there seems to be a possibility 
that they might all be regarded as one seam of a thickness of 
12 feet (including seam 3A). At present, however, it will be 
convenient to retain the original numbering. The bulk samples of 
seams 1 to 3A were taken in the Hathbandha Nala, and those of 
4 and 5 from the bed and barrier in the Kaoria Nala, the top of 
seam 4 being sampled in the Hathbandha Nala. It will be noticed 
that the thickness of seams 3 and 3A sampled in the Hath- 
bandha Nala is slightly greater than in the Karar Khoh section. 
