CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
191 
C. Syenite-aplite porphyry resembling grorudite. About 2 miles 
south of Mount Waas. Liparose. Contains potash and soda-lime 
feldspars, quartz, pyroxene, titanite, and iron ore. In the ground- 
mass are needles which are probably aegirite. P. R. C. 1301. 
D. Syenite porphyry resembling solvsbergite. About 1 mile north- 
west of Mount Waas. Phlegrose near nordmarJcose. Contains potash 
and soda-lime feldspars, quartz, pyroxene, and iron ore. Needles of 
aegirite (?) in the groundmass. P. R. C. 1303. 
E. Pulaskite, 1 mile west of Mount Waas. JYordmarkose. Con- 
tains potash feldspar, pyroxene, biotite, apatite, titanite, and iron ore. 
P. R. C. 1305. 
F. Noselite-syenite porphyry, dike on northwest shoulder of Mount 
Waas. Miashoae. Contains feldspar, pyroxene, sodalite or noselite, 
apatite, titanite, and iron ore. The pyroxene appears to be mostly 
aegirine-augite and the feldspar mainly potash-feldspar. P. R. C. 
1302. 
Si0 2 
AlA - 
Fe 2 3 
FeO 
MgO 
CaO 
Na 2 
K 2 
H 2 Oatl05°... 
H 2 above 105 
Ti0 2 
ZrO, 
CO, 
PA 
so 3 
ci 
MnO 
BaO 
SrO 
Li 2 
61.21 
17.10 
2.72 
1.88 
1.47 
1.83 
5.66 
3.00 
.34 
.68 
.51 
.02 
none 
.24 
none 
.04 
.15 
.13 
.07 
trace? 
100. 05 
73.27 
13.29 
1.16 
.13 
.07 
.21 
3.44 
7.53 
.23 
.43 
.10 
.02 
.02 
trace 
.07 
.01 
.03 
.10 
none? 
trace? 
100. 11 
70.02 
14. 38 
1.17 
.13 
.61 
.66 
5. 48 
5.87 
.27 
.44 
.10 
.01 
.38 
trace 
.19 
.03 
.02 
.13 
.06 
trace 
99. 95 
£8. 96 
15. 42 
1.99 
.16 
. 22 
.25 
6.59 
5.48 
.22 
.30 
.12 
.04 
.13 
trace 
none 
.01 
.07 
trace 
none 
trace 
99. 96 
62. 64 
17.36 
2.79 
.63 
.53 
1.70 
7.00 
4.97 
.43 
.53 
.43 
.02 
.54 
.12 
.06 
.03 
.04 
.10 
.07 
none 
99. 99 
58. 99 
19. 01 
1.74 
.59 
.27 
2.02 
9.11 
5. 07 
.38 
1.24 
.21 
.07 
none 
.04 
.96 
.15 
.08 
.02 
.01' 
trace 
99. 97 
8 absent from all. 
