SEP09-04

Page 1

NAPPIES!!

Huggies/Bab yLo Huggies/BabyLo yLovve & Fact or actor oryy Seconds Deliv ered Delivered FREE GIFT vvalued alued o all at $9 1.50 tto $91 ne w cust omer new customer omerss 0407 Mobile: 040 7 392 755 Phone: 8295 8800

Specialist Labour Hire Providers

Your Community Newspaper

Thursday, September 9, 2004

Phone: 08 8671 2450 Fax: 08 8671 0850

Established 2003

Social photo fun

RDAS school page

Father’s Day photos

Pages 18 & 19

Pages 10 & 11

Page 7

Splashdown for summer

A look below the surface FAR NORTH…A seismic survey of the eastern Gawler Craton – the geological structure which underlies the Far North region – has unearthed some surprising results. The survey, completed in July, 2003, was one of the largest of its kind in Australia and already the results are overturning long-standing theories about the geology of the region. The latest findings have scientists reconsidering their theories on how the region formed at a geological level, Geoscience Australia geologist Patrick Lyons told The Monitor this week. “In this part of the world we never see these basement rocks but they’re very important because they hold important ore deposits like the one at Olympic Dam,” Mr Lyons said. “We now think we can tell how these basement rocks faulted. It’s the faults that are very important in the formation of ore deposits. “Very hot fluids, from deep in the earth - basically water, with metals dissolved in it, including the copper - move through the faults and the shear zones in the crust, then for fluids precipitate their dissolved

SPLASH FEST... Local swimmers Keren Luke, 9, and Susanna Kruger, 9, are priming up for summer this week, with pools across the region set to open their gates in the coming weeks. But while the calendar says it’s already spring, and summer’s on the way, the thermometer has barely crept into the early 20s.

metals at a site that becomes an ore deposit. “So, in essence, the seismic readings are showing us the plumbing system for the fluids that gave us the ore. There’s a lot more work to do but we believe this knowledge will help mining companies better target their exploration sites.” Mr Lyons and his fellow geologists have been impressed by the quality and volume of data already gleaned from last year’s survey, giving them a whole new view of the region. After months of number-crunching and computer time, the survey has now provided a cross-sectional view of the part of the Gawler Craton underpinning Olympic Dam’s own Copper-Gold-Uranium deposit. The aims of the survey - conducted by Geoscience Australia with the cooperation of Primary Industries and Resources South Australia were to better understand the local geology and help in predicting the location of other mineral-rich regions. “Seismic is like an ultrasound of the earth – but on a much bigger scale,” Mr Lyons said. “Normally, seismic

is used for looking for oil which occurs in sedimentary rocks which are relatively flat-lying. “When you get into very old rocks, which are intensely folded and faulted, it’s difficult to get good seismic images, but we’re very happy with the results. “We didn’t expect that some of the structures would be so big – one particular structure looks like it goes right down to the mantle, as much as 40 km deep. “We also found, in the north of Bopeechee, that the sedimentary cover gets over 6km deep there, and we didn’t expect that. That kind of structure may have possibilities for other types of ore deposits.” The survey encompassed a 200km North-South line including the Stuart Hwy between Roxby Downs and Woomera, and East-West encompassing Olympic Dam and a large section of the mine lease. Representatives from Olympic Dam, Challenger, and Prominent Hill were present at the recent ‘Gawler Craton: State of Play’ conference in Adelaide where initial findings from the hard rock survey were released.

Sand, Surf, Scenic Views and Sumptious Seafood.... all on the Yorke Peninsula turn to pages 12 - 15 to get a closer look

Dine Out! The Homestead Steak House EVERYDAY LOW PRICES!

Hang Out! Wednesday

Members’ Night Monthly Menu $10 for members – $12 for non-members KIDS UNDER 12 FREE

Phone: 8671 0117 ...for a fun night out with friends and family!

OPEN: Every night except Wednesday’s from 6pm.

SEPTEMBER COPPER CARD SPECIAL FREE bottle of wine in the Steak House

Happy Hour every night! 5.30pm - 6.30pm in the main bar

THE MONITOR - Your Community Newspaper

September 15 - 3 Course Meal September 22 - Carvery

Get your membership now! Just $25 - Families $35 Member’s door prize Jackpots “Spin the wheel”

Happy Hour 7.00pm - 8.00pm

Party On! Karaoke Carry On

Friday, September 10

at Bone” LIVE band- “Black C Country Rock Saturday, September 18

Bingo! “Eyes Down” Monday nights 7.30pm in the Main bar.

‘Charity of the Month’

Beached Whale Fund Thursday, September 9, 2004 - Page 1


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.