Metamorphic and Plutonic Rocks at Onieo. J 31 



of muscovite granite. Strike of beds N. 45° W., see 

 Plate II., Fig. 2. (e) Rather massive, much altered 

 schists. (/) Spotted and micaceous schists, much 

 contorted, and in contact with a large mass of muscovite 

 granite. (g) Massive schists traversed by veins of 

 aplite and quartz. {Ji) Schists having a rude foliation, 

 dipping N. 20° E. at 52°. {i) Thick-bedded schists, 

 dipping S. 65° W. at 78°. (/;) Kather massive schists 

 in alternating micaceous and quartzose beds, with veins 

 of aplite, dipping N. 20° E. at 81°. (/) Very massive 

 schists, traversed by small winding veins of aplite 

 and quartz. (?}i) Massive rocks, much jointed, and 

 having a crystalline granular structure, traversed 

 by a dyke of graphic granite. (ii) Massive crystalline 

 granular rocks ti'aversed in places by veins of 

 aplite or muscovite granite, (o) Quartzose crystalline 

 granular rocks. (j9) Porphyritic granite, {x and x') 

 probable contacts. The rocks contained between these 

 two points are of doubtful character, (t/) Dykes of 

 muscovite granite, aplite, and graphic granite. {z) 

 Basic dyke. 



Plate II. 



Eig. 1. Dyke of muscovite granite (pegmatite) near Hmno- 

 munjie Morass. (cC) Mainly felspathic, with a little 

 quartz and muscovite. (6) Coarse crystallisation of 

 orthoclase, and quartz with bunches of muscovite. (c) 

 Rather translucent crystalline quartz, (d) Fine-grained 

 mica schist. 



Fig. 2. Contact of schists and muscovite granite at Wilson's 

 Creek, [a) Gneissose schists striking N. 45° W. (b) 

 Muscovite granite. 



Fig. 3. Outcrop of schist, see Plate 1., Fig. 3 — (/■). («) 

 Rather quartzose mica schist, (b) Nodular mica schist 

 (c) Band of aplite. The schists dip N. 20° E. about 80° 



K 2 



