iSoME Basalts from the North Nimberley, Westerist Australia. 
89 
TABLE IIT. 
1 . 
2 
3. 
A. 
B. 
C. 
SiO, 
... 
50-3 
49-9 
50-5 
52-2 
50-5 
50 
A1,03 
... 
14-5 
13-6 
15-8 
14-5 
14-8 
13 
PeO, Fe.^Og ... 
... 
13-2 
14-0 
12*1 
11-2 
11-5 
13 
MgO 
. . 
5*7 
5-0 
5-8 
5-0 
0-0 
5 
CaO 
... 
8-3 
9-3 
0-0 
7-3 
10-9 
10 
Na^O 
2-8 
2-5 
3-0 
2-9 
2-9 
2-8 
K 2 O 
... 
1-5 
1-0 
1-4 
2-0 
0-5 
1-2 
1. Average of North Kimberley basalts and dolerites (7 analyses). 
2. Average of North Kimberley dolerite (4 analyses). 
3. Average of North Kimberley basalt (3 analyses). 
A. Average East Kimberley basalt (7 analyses), A. B. Edwards and E. de C Clarke 
Jov)\ Roy. Roc. W.A., xxvi, 11)39-40, p. 93. ’ 
B. Average Tertiary tholeiite from south-w<‘stern Western Australia {3 analyses). A B 
Edwards, Jour. Roy. Soc. W.A., xxiw I937-3K. p. 7. 
C. Tholeiitie Magma Typt'. W". Q. Kemusly, Anicr. Jour. Sci., 8er. ;7, 25. 1933, p. 239. 
REFERENCES. 
Brockman, E. and Crossland, C., 1901 : Report on the Exploration of the North-West 
Kimberley. Perth : By Authority. 
Deer, W. A., and Wager, L. H., 1938 ; Two new Pyroxenes ineluded in the system clino- 
enstatite, clinoferrosillite, dio})side, and hedenbergite. Mineral May., xxv. j). 22. 
Easton, W. U., 1922 : Report on the North Kimberley Distrh't of WT'Stern Australia. Puh- 
lication No. 3, Deparlmeml of the North- West. 
Edwards, A. B., and Clarke. E. de C., 1940: Some Cambrian basalts from the East Kim- 
berley, W^estorn Australia. Jour. Roy. Roc. xxvi, pp. 77-94. 
Farqnharson, R. A.: Petrological mjtes on rock specimens from the Kimberlev Division. 
Unpublished manuscript rejmrt to Geol. 8urv. West. Aust. 
Fitzgerald, WL V., 1907 : Reports on Portions of the Kimberlevs, 1905-(i. Parliamentary 
Paper, West. Aust., No. 19. “ 
Hardman, E. 1., 1885: Report on the Geology of the Kimberley District, WUstern Aus- 
tralia. Perth : By A uthority. 
Jutson, J. T., 1934 : The Physiography of Western Australia, 2nd edit. Bull. 95, Oeol. 
Surv. West. Aust., pp. 34-40. 
Kt'nnedy, W. Q„ 1933 : Trends of differentiation in basaltic magmas. Amer. Jour. Sci 
25, pp. 239-256. 
Maitland, A. Gibb, 1902; Ann. Prog. Rept. Oeol. Sure. Il'e^b Aust. for 1901, p. 9. 
Maitland, A. Gibb, ami 3 homson, d , A., 1909 : The Gascoyne, Ashburton, and WVst Pilbara 
Goldfiekl. Bull. 33, Oeol. Snrr. West. Aust., ])j). 163-9. 
Talbot, Wk E., and Farquharson, R. A., 1920: The Geology and Mineral Resources of 
the North-W'est, Central, and Eastern Divisions. Bull. 83, Oeol. Surv. West. Aust, 
pp. 142-5, 190-2. 195-214. 
Washington, H. 8., 1922 : The Deccan Traps and other Plateau Basalts. Hull. Oeol. Soc. 
Amer., 33, pp. 765-804. 
