The number of straight crystal faces was determined for kaolinite crystals in quartz--and clay-rich regolith and also for granitic and doleritic saprolite from Jarrahdale and compared with the API kaolinite No.
Preserved granitic fabric (Zg) and doleritic fabric (Zd) mine floor materials represent the granitic and doleritic saprolite and saprock of Anand and Paine (2002) that occur below the pedoplasmation front.
3), and consist principally of fine-grained plagioclase laths and biotite with varying quantities of generally rounded and resorbed xenocrysts of K-feldspar and quartz; textures include doleritic
, ophitic, and microgranular (Fig.
Their texture is coarse- to medium-grained, porphyritic to ophitic and subophitic, with a doleritic matrix.
These are equigranular rocks, mainly with doleritic textures but in some cases with microlithic or fluidal microlithic textures.
The Prospect Intrusion is a Jurassic doleritic
laccolith emplaced concordantly between Triassic deltaic Hawkesbury Sandstone and the overlying lacustrine Ashfield Shale member of the Wiannamatta Group, also of Triassic age.
Petrological and geochemical data is consistent with the basaltic, doleritic
and gabbroic intrusions comprising alkalic series signatures, characteristic of heterogeneous asthenospheric melting associated with ocean island basalt (OIB) magmatism.
The two granitoids contain local bodies of the basement consisting of fine-grained doleritic to medium-grained dioritic rocks.
Within these granitoids occur local bodies of the basement comprising dark fine-grained doleritic to medium-grained (quartz) dioritic rocks.
It shows a porphyritic to doleritic
microstructure with subidiomorphic large crystals of olivine (up to 1.6 mm).