XXX 
The intersections, attended by (heaves) 
displacements to- { .. : : t 
Tamas muonieeciells 0-66, in slate 0-64 of the whole; 
in’ granite........ 
a attended by (heaves) 
displacements _ to- 
wards the smaller 0°8, » O15 2 
Brae eee eng ene ao 
sa attended by (heaves) 
displacements aver- > 17-1 +) L6:3mteet 
AIS cir syere tae ae 
When lodes affording the ores of different metals are intersected 
by cross-veins, the results are * 
Lopes LopEs (heaved) displaced towards the 
NaTURE OF ORES | intersected, Ee 
contained in the lodes.} but not' | ~ 
(heaved) Right Left Greater | Smaller 
displaced. hand. hand. Angle. Angle. 
iin OLE Vs ereeteilerer 0:18 0:56 0:26 0°52 0:30 
Tin & Copper-ore| 0°37 0-44 0-19 0:56 0:07 
Copper-ore ...... 0-18 0°52 0°30 0:74 0:08 
The lodes yielding tin-ore are, on an average (heaved) displaced... 15-4 feet; 
5 5 the ores of both 14:6 tee 
tin and copper.. 2 ge mY es 
“8 a copper-ore ...... 175 
be) 99 
The intersections of Jodes by cross-veins of different mineral 
character afford the following results t+ 
LopEs Lopes (heaved) displaced, towards the | 
. intersected, 
Nature of cross-veins. ee SEER 
(heaved) | Right Left | Greater | Smaller 
displaced. hand. hand. | Angle. Angle. 
Quartz (cross-courses) 0:29 0-44 0:27 | 0:59 0-12 
Slaty-clay (flucans) ..| 0-18 0°55 0-27 0:70 0-12 
The mean distances to which the lodes are (heaved) displaced by 
cross-veins of different kinds+ are— 
Amount of (heave) displacement, towards 
Nature of the cross-vein. a —_—__—__, 
Right hand.| Left hand. ees eae 
Quartz (cross-cowrse)..... 12:3 feet | 7-1feet | 9:3 feet | 16°3 feet 
Slaty-clay (flucan)....... 24:4 ,, UGK} G5 Maller |) PADRE oy 
* Henwood, Cornwall Geol: Trans: v., pp. 286-287. 
¢ Ibid, v., pp. 291-292. 
