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favouroble for the occurrence of minoral deposits, The three

earlicr of the main groups of intrusives, including the

Jurassic (?) diorito, Jurassic(?) granite, ond Tortiary granite,
are possible sources of valuable mineral deposits. Tho later
Tertiary basalts ond andesites in places are stained with
malachito and contain small voins, but in the main tho intrusivos
now exposed that are rolated to these wore probably too small and
too clost to the surface to yicld valuable doposits.

“The diorite and its contact zones are well cxposod
north of Burns Lake and in Taltapin district. No doposits of
economic value or suggostod possible value, that might bo
Rees to the diorite, have yet been found in these areas.

On tho Radio property much quartz ond abundant pyrite and
magnetite indicate that solutions such as are responsible for
minoral deposition were given off in considerable quantities.
The deposits, however, have not beon shown to be of economic
importance. It may be that farther away from the diorite
better deposits may occur, but the range of known deposits from
the contact is already great and there is no evidence of
important improvement.

Main contacts of Jurassic gronite were examined in a
number of places, notably south of Burns Lako, Poison ereck,
and between Savory and Priestly, and roof pendants were studied
in the Burns Lake district. Along all the main contacts
deposits, consisting largely of drusy and vugey quartz and/or
coarsely crystalline calcite, were found. Fluorite occurs in
places south of Burns Lake arid is mainly of earlior age than
the quartz. None of these deposits was observed to carry
important quantities of metallic minerals. Similar calcite and
quart z deposits are reported by prospectors to carry small

amounts of galena. On the Elks group, in small roof pendants,