GEOLOGY OF NORTH GIPPSLAND, VICTORIA. 31 
formations similar to those I have now endeavoured to describe are 
met with until Mount Tambo is reached beyond Omeo. 
The subjoined diagram section of the Mount-T'ambo beds (fig. 11) 
is condensed from the sections which I have worked out to illustrate 
the paper I have already mentioned. 
Fig. 11.—Diagram Section across the Mount-Tambo beds. 
8.W. Scrubby Creek. Mount Tambo. N.E. 
a. Tambo beds. d. Granites. 
6. Bindi Limestone. e. Silurian. 
e. Quartz-porphyries. 
We have here the lowest part of a synclinal fold resting uncon- 
formably on the Bindi Limestone, and in a basin of the “ Lower 
Paleozoic rock-foundation.” The series commences with a thick 
coarse conglomerate of pebbles of quartz, indurated slates, and other 
siliceous rocks, and extends upwards, through sandstones, grits, 
and red rubbly shales, to another thick bed of somewhat similar 
but less coarse conglomerate. From this point the mountain slopes 
rapidly into lower country. All these beds to the second conglo- 
merate thin out to the southward, and are entirely wanting in Bindi. 
The remainder of the series gradually becomes finer in character 
until the uppermost beds are all rather fine sandstones and slaty 
shales. 
Conglomerates show again at the next margin of the basin, and 
I regard these as being the probable equivalents of the second con- 
glomerate. Shortly following that conglomerate I have found a 
thick band of compact yellowish or whitish felstone, which is in 
places quartziferous. But I am quite unable at present to say 
whether it may represent the felstones of Tabberabbera, Maximilian 
Creek, and the Snowy Bluff, or whether it is a very large intrusive 
mass. 
A great irregular dyke-like mass of diorite (?) is also visible in 
one section, but does not seem to show either to the north or south 
along the strike of the Tambo beds, and is doubtiess intrusive. 
I was unfortunately unable to find the plant-bearing shales men- 
tioned by Mr. A. R.C. Selwyn*; but bearing the fact stated by him 
in mind, and considering the marked resemblance in the lithological 
character, the sequence, and stratigraphical position of the Tambo 
beds, their resemblance to those of Iguana Creek becomes strongly 
* Jntercolonial-Exhibition [ssays, 1866, ‘Notes on the Physical Geogra- 
phy, Geology, and Mineralogy of Victoria,” p. 15. 
