The Geology of the Lochaber District, Queensland, Australia |
Common terms and phrases
abundant acid volcanics andesitic angular basalts Branch Creek section breccia brown or gray Carbonate cement Silica Carboniferous cement secondary quartz cement Silica cement chert chlorite Chlorite cement clay-size detrital matrix COMPOSITIONS OF MUNDUBBERA deposition detrital devitrified Devonian Driscoll feet feldspar feldspar crystals felsic Figure fossils G G G geosyncline glassy graded bedding grained granite graywackes Hunter-Bowen orogeny laterite limestone lithic clasts lithic fragments lithologic Lochaber district Lochaber Sandstone MODAL PERCENT COMPOSITIONS mudstone mudstone breccias Mundowran Group Mundubbera district O'Killum occur oolites opaques outcrop Paleozoic Permian plate present Pumpkin Hut Formation quartz Queensland Collections rhyolites rhyolites and trachytes rock types sedimentary Silica cement secondary silicious slide source areas stratigraphic structure Tasman geosyncline textural thickness thin sections Tournaisian tr tr trachytes Triassic tuffs turbidity current Unidentified clay-size detrital University of Queensland Upper Devonian usually brown variations Visean vitric tuffs volcanic wackes Washpool Creek Formation Yarrol basin Yarrol thrust zone