100 

 Wai.halla, 



At the celehrated Long Tunnel mine, W'alhalla, the dyke tremls parallel with the strike of tlie strata west of 

 north. It is inipiegnateil more or less with iron ami arsenical pyrites. Two (piartz loiles meeting in an apex or cap 

 accompany tiie ilyke along or near to its walls on either side, while olliers intersect the l>ody of tlie dyke. The shoots 

 of auriferous (juartz dip nortlierly, the underlie being westerly. This mine is a splendid instance of the permanency 



of the auriferous veins associated with the dykes ; it lias yielded over (iHl,344 oz., or in value £2,.5"2o,376, and has 

 been carried to a depth of nearly 2, OOO feet. The whole of the belt of country extending northerly from Walhalla 

 througli the heads of the Jordan and over the Dividing Range at Matlock to Wood's Point, and still furtlicr northerly 

 to Jamieson, is auriferous and of similar character, although on the L)i\'iding Range, near Matlock, there is probably a 

 juncticm of the Upper and Lower Silurian beds, from the occurrence of fossil graptolites found there by my colleague, 

 Mr. Ferguson, 300 feet or more below the saddles. 



Wooii'.s I'oiNT. 



The Morning Star dyke, which trends on the surface .")4 deg. west of north, is intersected by (juartz veins, which 

 are nearly horizontally disposed, inidining luit .slightly to north-west. They penetrate the ailjacent slates, and are 

 richest near tlie contact. Several bores were put ilown, which proved floors of cpiartz at lower levels, and show that 

 the (juartz veins occur to great depths in the dyke mas.ses. 



Fos'lER. 



Aurifei'ous ipiartz veins |ieiictratc into the adjacent rocks beyond the porphyritic dyke which intersects the 

 Silurian rocks at this place. Other localities wliere the dykes have a.H.snciated witli them auiifcious quartz veins are 

 numerous in the country occupied by the Upper Silurian beds, as at Alexandra, lieads of Big River, Tanjil, Cassilis, 

 Ovens Valley, Queenstown, &c., &c. 



Meridio.vai. Hki.ts of Reek.*. 



A feature which is common both to the Lower and Upper Silurian beds, no matter «hat the amount of local 

 variation in the direction or formation of the ijuaitz veins may be, is the meridional Iwlts which come into view when 

 the position of the ipiartz veins are plotted on the map, if., there is a general meridional trend of the gold-bearing 

 portions of strata. This signiticant fact was drawn attention to by Captain Panton, P. JL, and C. W. Ligar, ex- 

 8ur"veyoi--(!eneral, during 1S.")S —by the former in the Miinnij Journal, and l>y the latter in the Tran<nrt{onfi of tht 

 MiitUui Insliliih'. My prcdcces.sor, Mr. K. A. V. Murray, was able to direct speci.il attention to their importance by 

 defining a numtier of auriferous l)elts or zones Later discoveries go to confirm the prediction of Messrs. Panton and 

 Ligar in a remarkaljle degree, so thai now fully thirty of such auriferous belts may be mentioned. 



