Page 459 - NEWGEN21-Proceedings-Full

Exploration History

Newcrest completed a follow up gravity survey (survey area of

1990's Early Newcrest Exploration 2.0 km x 2.9 km) in 1992 that identified a 0.2 mGal anomaly
coincident with the previously defined magnetic anomaly.

0.7
Observed Newcrest
0.6 Fitted Gravity Modelling
0.5 Base Level 1992
0.4
0.3
0.2
0.1
0

8400 9200 10000 10800 11600
~420m depth to
-400 gravity source
volume down to
+1000m
-800
-1200

HAC9101 0.4
0.2
0.2
HAC9201: 28 m at 1.0 g/t Au & 0.22 0.1 Drillhole HAC9201 targeted the gravity anomaly and intercepted pyrite-
0.0
% Cu from 420 m including 2.6 m at -0.0
9.4 g/t Au from 427.5 m -0.1 chalcopyrite associated with gold and copper, including higher gold
-0.2
-0.3
-0.6 grades (1.1 m at 15.5 g/t Au from 429 m).
mGals
The observed geology led to Havieron being considered a skarn-related
system. 1

1 Russell, P.J. 1997. Summary of Exploration 1990 - 1996 Havieron Prospect ML 45/605 (Anketell Project) Telfer District. Newcrest Mining Ltd. Internal Report No.
ANK30/1195/97.