97 
species in tlie one wliicli are not represented in the other. The Gympie Beds 
thirt^'"^ species peculiar to themselves, and the Middle Bowen Series 
J'four species peculiar to itself. I am quite open to conviction should future 
up to prove the identity of the Gympie Beds either with the Star 
I^eda Bowen Beds ; but in the meantime I think it safer to keep the Gympie 
all. " and to assign to them a position beneath the Star Beds, for the reasons 
stated. 
^ able to identify the Gympie Pormation with anything in New South 
con M Victoria, unless mere lithological resemblance can be taken as a guide; but, 
^cen near to the southern border of Queensland the Gympie Formation has 
at p ^^ced, it is more than likely that some of the New South Wales sedimentary rocks, 
doubtfully referred to Silurian and Devonian, may yet prove to be on the 
•'®Pie horizon.* 
of jp , Beds have undergone, so far as I have observed, no very great degree 
Bortions of them, such as the Drummond Beds, may be said to have 
io nietamorphism at all. The Gympie Beds, on the other hand, are at least 
CCS considerably metamorphosed. 
than th^^^ Bower Series of the Bowen Eiver Coal Field, which is believed to be newer 
of ® ®yMpie Beds, has suffered in the Mackay District a very considerable amount 
“‘ctamorphism. 
Mines 
IN CONNECTION WITH THE GYMPIE FOEMATION OUTSIDE OF 
THE TYPE DISTEICT. 
occurs the veins arc the richest in gold. In some parts of the f^orphyry 
arc very numerous, and the veins ai’c very patchy. Where these patches 
KILKIVAN AND BLACK SNAKE. 
'^^ite n work at Kilkivan has been the driving of tunnels in a sheet of 
P°fphy '^Bich occurs in the face of a range running north and south. The 
on/^ ^fNes greatly in thickness. There are no defined reefs at all in the porphyry, 
Sauese quartz with oxides of iron and manganese. Where the man- 
Can be the whole of the mass will pay to crush. No large quantity of stone 
consid Bwo men who have been working in the Long Tunnel P.C., which 
^^Ushinre claim in the porphyry, after six months’ work, have just had a 
^as ° tor 21 oz. of smelted gold. The cost of carting and crushing alone 
per ton. o & 
serpp country around Kilkivan consists entirely of mctamorphic rocks, such 
distripf ffornblendic and micaceous schists. All the reefs found in this 
ch, 
'let 
gold 
occur in these rocks 
. From the Else and Shine Eeef very good specimens 
auggg quartz were obtained in the upper part. Lower down the stone 
kittle galep ®Bndic consisting greatly of zinc-blende with some iron pyrites and a 
“ Til 
cntireK- country between Kilkivan and the Black Snake and Mount Coora is 
i ot schists— c 
tion 
to the 
“Th 
Oorth-west. 
chiefly hornblondic — and mica-schists, which have a steep inclina- 
Porphypit^ ® gold-bearing reefs of the Black Snake district occur in a micaceous 
consists of a felsitic base with porphyritic crystals of oligoclase 
Ste*if Gympie Beds will prove to be identical with the New South W.ales strata termed 
District known as “Lower Carboniferous”— so largely represented in the Port 
0 • i ossibly the Star Beds will also be identical. (E.E. Junr.) 
