5«2 



[Pr< 



ground, South — meta. grit, fine grey granite, micaceous 

 quartzite, gneiss, South or North — flint, basalt, sericite, 

 dolerite. 



LX. Derrybeg Brickfield, Limavady, Boulder-Clay. Erratics: — 

 Meta. coarse grit, Carb. sandstones, quartzite, diorite with 

 granular ground, South — metamorphosed grit, mica horn- 

 blende-schist, South or North — red and pink granites, 

 crushed felsite, S. (Slieve Gallion) or North — epidote 

 granite with hornblende, South, Tyrone axis — Basalt coated 

 with calc. concretionary clay, local — diorite, chalk, gneiss. 

 No Microzoa in the clay. 



LXI. Moys, nearly four miles S. of Limavady, Gravel-Pit, 

 Knockandunn. Erratics : — Riebeckite rock, Ailsa Craig — 

 fine grained granite, probably not Ailsa rock — metamorphosed 

 grits and sandstones, quartzite, South — pink granite, Carb. 

 sandstone, South (Slieve Gallion) or North — gneiss, North 

 ? floor of Channel, felsite (syenite series) ? Tyrone — schist, 

 quartz, flint, basalt. 



LX1I. Aghadowey, Gravel-Pit, Clare Hill. Erratics : — Micro- 

 pegmatitic granite, quartz-porphyry, grey granites, South, 

 (Slieve Gallion) — crushed granite, North — quartzite, felsite, 

 metamorphosed grit, South (Dalradian) or North — vein 

 quartz, epidiorite, South (Slieve Gallion) or North. 



LX1II. Kilrea, Gravel-Pits. Erratics : — Riebeckite rock, Ailsa 

 Craig — red and pink granites, green phyllitc, rhyolite, diorite, 

 gabbro, S. (Slieve Gallion)— red Carb. limestone, S. ( Ookstown 

 — coarse gneiss, dark red granite, N. or S. ? —red and 

 greenish granites, S. (Slieve Gallion) or North — quartzite, S. 

 (Dalradian) or North. Probable infiltration in basalt. Fossil, 

 Carb. with coral. 



LX1V. Cavanmore Road, Gravel-Pit three miles from Kilrea. 

 Erratics : — Hornblendic granite N. or S. — quartzites, grey 

 granite, red granites S. or N.— rock probably modified by 

 Eocene or Miocene hot-springs, South or South-West— 



