The Queensland Naturalist. 
222 
VoL. I. 
NOTES ON A GEOLOGICAL lEIP TO MOOGERAH, 
NEAR CUNNINGHAM’S GAR* 
By Roht, G. Hamilton. 
During the Technical College vacalicn week, a small 
party, organized by and under the leadership of Mr. R. A. 
Wearne, B.A., Principal of the Ipswich Technical College, 
paid a visit to the district south-east of Cunningham’s 
Gap. 
We assembled at Ipswich and took train to Munbilla, 
Thence we journeyed by coach, via Engelsburg, to the 
Moogerah State School. On the w^ay a visit w'as made 
to the school hill at Engelsburg and there the ground w'as 
found to be strewm with fossil wood. Some fine specimens, 
containing veins of chalcedony and semi-opal, were obtained. 
By permission of the Education Department the 
Moogerah School w^as made our headquarters. It may 
be interesting to mention that the aboriginal name of the 
locality is Moogerahba, and not the present curtailed form. 
The school is situated near Mt. Alford, w^hich with Mt. Moon 
forms an isolated ridge east of the Main Range. 
Our first visit Avas to Glennie’s Pulpit, a solid plug of 
rhyolite standing out prominently on the side of 
Mt. Alford. Along the road to the south of the 
Pulpit we found trachyteand rhyolite. The trachyte 
intrudes the Walloon Coal Measures — the upper 
series of the Ipsv/ich formation. The rhyolite is 
identical in appearance Avith that of Glennie’s Pulpit — 
quartz blebs and sanidine crystals in a beautifully Avhite 
compact matrix — and it is apparently a flow from that 
centre, overlying the trachyte. The ascent to the Pulpit 
proved arduous. In order to avoid the denser parts 
of the scrub that clothes the base and sides of the 
mountain, we w^ere forced to make a lengthy detour. The 
undergroAvth Avas very prickly and some of the party 
suffered severely. Half way up, a rocky blufl of rhyolite 
was reached, and near it the grits of the Walloon Measures 
again outcropped. Some conglomerate also Avas present 
containing interesting pebbles of trachyte. 
Several scrub-turkeys’ nests w^ere next passed, and 
after another stiff climb the Pulpit was reached. The 
rhyolite plug towers about 120 feet high, Avith vertical Avails. 
It is about 100 yards long by 50 yards Avide. Horizontal 
prismatic structure is very distinct, and on one side is a 
large cleft. 
•Cuanineham’s Gap, in the Great Diviilinur Range, is about 54 miles South 
West, of Brisbane, 
