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P^^tlende, In the interstices. This rode weathers deeply, but quite differently from 
either the Herberton porphyry or the Watsonville granite. The sui’facc is bestrewn 
^dh angular bloehs, generally of not more than two cubic feot, with rounded angles. 
■*■“6 porphyry continues to about one mile beyond the junction of the G-eorgetown coach 
and the Chillagoe road, where the sandy grits and conglomerates of the Mount 
^^ion type are again met with. The stratified rocks occupy the whole of the Chillagoe 
^oad from this point down Emu Creek, and across Sandy and Oakey Creeks, a distance 
about thirteen miles. At the first crossing of Emu Creek the grits occur in very 
, beds, and, as well as the accompanying shales, are nearly vertical, with a slight dip 
° the south. At the crossing of the creek half-a-niile beyond Leakey’s Creek the 
ount Albion grits are a good deal hardened. Blocks of a coarse conglomerate (with 
Sritty matrix and large pebbles of quartzite) have been carried down the creek, 
fo Mad next crosses the river I ascended a mountain on the left bank, and 
“'^id it to be composed of grits altered to quartzites, with some limited (? intrusive) 
of porphyry. 
At the 32-mile telegraph post, which is near the road, porphyry rocks are again 
with, at the foot of what is known as the Eeather-bed llange. Ascending the 
by the road, the mass of the range is found to consist of hornblendic granite, 
leh is replaced by shales, sandstones, grits, and conglomerates on the head of 
°orboora Creek, a tributary of the Tate. 
Ifrom Koorboora Creek westward by the Koorboora Camp are massive altered 
® and conglomerates, with a matrix resembling quartzite and containing some grains 
fi^artz and some of plagioclasc felspar. jVear the head of the creek on which the 
^^^orboora Camp stands, these rocks are intersected by dykes of acidic felstone. The 
^’’atified rocks continue along the road west-north-west to between Bismarck and 
^’’aiiite Creeks. Occasionally the grits are somewhat ferruginous. At other times 
occur in thick beds, and are sometimes pebbly or conglomeratic, with a quasi- 
matrix, and weather in rude spheroids like granite. 
*'tes, which latter arc sometimes honeycombed with cavities from which limestone 
Weathered. These striico N. 20° W. and dip at high angles to W. 20° S. In about 
qj , Between Bismarck and Granite Creeks the road crosses a belt of coarse porphyry 
he ■ ^ ^^o*'berton type, intersected by dykes of compact yellow felstone. The porphyry 
/'■Ppears to pass into true granite, containing spanso crystals of black mica 
lie' bhis point to Mount Lucy granite is the prevailing rock seen in tlio 
h murhood of the road. 
^ little boyoud Mount Lucy the road to Muldiva strikes off to the left (south- 
At the junction of the roads beds of limestone are for the first time met with, 
the Muldiva road limestones are seen at intervals interbedded with thin flaggy 
'lUart; ■ 
bas 
®i‘e8 from the turn-off of the road, and near the Muldiva Camp, the granite 
a ^^^^nces. The road from Muldiva to Chillagoe, which joins the main road about 
of a mile east of Gorge Creek, also traverses strata of limestone and 
mi;[g brom Gorge Crook by the road north-westward to Zillmanton, and for a few 
of if ^®^ond, the country presents alternations of comparatively flat land with ranges 
T(jg '?^®®bone, which stand from one to four hundred feet above the level of the flats, 
anq ’^ostone is apparently in vortical beds, which strike on the whole to north-west 
I ^Bbough there are evidently many changes in the strike. In some cases 
certain that the trend of the short “ ranges” docs not correspond with the 
rargi ^ upturned beds. These strata between the limestones are comparatively 
^ opposed, being covered, as a rule, by a considerable depth of red soil. 
