Hillgrove Resources Limited · ASX:HGO

Hillgrove Resources — Technical Presentation (April 2015)

7 slides from Hillgrove Resources's technical presentation, April 2015

  1. Slide 1: HELITEM Survey Location

    HELITEM Survey Location “y KERSBROOK —/ \ RY f } by / y / f HeliEM survey areas . i A ~~ ( ~~ ey / |e URAIDLA sok & BRIDGEWATER im ° f~ [ALDGATE .¢ HAHNDORF MOUNT be. "® ECHUNGA )™ / \ ( MACCLESFIELD, / pees \ DO! Sb aw \ \ a (EL4354 — “HARTLEY be - Ss \ 1 A A Za raat i_\ WOODCHESTER ~~ ‘ STRATHALBY

  2. Slide 2: HELITEM system setup

    HELITEM system setup 83m 35m 2

  3. Slide 3: Survey Basics

    Survey Basics Ze <a < ae GPS satellite "| i a navigation / ee Flight Lines — oe : : 100m ra 4km apart ae / ae Specially modified (black lines) survey aircraft Tie lines 5x to 10x flight line spacing {red lines Aircraft height off the ground determined by dar or laser altimeter

  4. Slide 4: Basic EM Principles

    Basic EM Principles All airborne EM systems work on the same principle: they transmit an EM field (the “primary field”) that induces electrical currents in anything conductive. These currents are shifted in time from the primary field, and generate a “secondary” EM field, that is detected by the ele

  5. Slide 5: Basic EM Principles

    Basic EM Principles The primary field will also induce electrical currents in a single (or confined) conductor in the ground. The currents in this conductor will also create a secondary field that can be detected at the receiver. Currents induced in conductor Currents in earth distorted.

  6. Slide 6: FAQs

    FAQs  What is a HELITEM survey? A HELITEM survey involves the towing of an electromagnetic transmitter and receiver array (“boom”) underneath a helicopter at a flying height of 85m along a pre planned survey grid. The resulting data can provide a wide range of information for various uses including

  7. Slide 7: FAQ Continued

    FAQ Continued  Will the aircraft land on my property? Unless prearranged with the landowner or in the case of an emergency, the helicopter will not land on private property.  Will the helicopter fly directly over my house? The survey pilot will adhere to CASA regulations and safe operations at all

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