96 TIN DEPOSITS OF NEW SOUTH WALES. 
In some cases, however, these acidic outbursts were essen by 
fragmental eruptions of greater or less violence, and in ome parts 
great quantities of felspatl ted on the e surface. 
e outpouring of these acidic lavas has been followed by 
gravels of the old river-beds, and protecting the wealth of tin 
thus entombed from the denuding action of the rain. 
These basaltic rocks are of very ; great extent, and have buried up 
enormous areas of country; thus, between Glen Innes and 
Inverell they cover an area over 20 miles in width, forming 
all the peaks of the Waterloo Range, and that area has not, up to 
berliie rocks. 
OccURRENCE OF Longs, &c. 
Although up to the present time lodes appear to be 
in the New England District, there are certain undoubted Siciasioes 
of their occurrence, and I propose to describe in detail one of the 
— ONE RO premising that others will doubtless yet be found. 
in the Emmaville District that the only true tin-bearing 
bias < are B baiiig worked. These are known as Butler’s and the 
Dutchman lodes, but other outcrops, which appear on the surface 
to belong to the true fissure veins, are found in the Cumberton, 
Hammer and Drill, and Pearman Beacroft & Co.’s claims, all of 
which are situated near Glen Creek, and are on the line of the 
Dutchman’s lode, which is being worked on the tableland. 
belong to one or other of the irregular deposits which will be men- 
tioned further on. 
The Butler’s lode may be taken as a fair type of these true 
fissure veins. Ié is well defined, varying in thickness from 3 or 4 
feet up to 23 feet in some parts. It consists chiefly of quartz, 
tals of which are encased in chlorite, and in some parts 
of the mine this ore pa me ne plentiful, carrying tinstone as 
erystals and erystalline : 
The lode is a true one, pce between well-defined walls, and has 
an average north-east course, but where it pinches it generall 
takes on northing, In places the lode splits and while one portion 
goes tc the northward, the other holds its north-east course, the 
