* ASX 200 down ~10% for week, set for worst show since 2008
* Index hovers ~40 points above next support at 6,400
* New Zealand index slides 3%, down about 7.5% for week
By Rashmi Ashok
Feb 28 (Reuters) - The Australian sharemarket slid into correction territory on Friday and was headed for its biggest weekly fall since the global financial crisis amid mounting fears about the global spread of the coronavirus.
Governments from Iran to Australia shut schools, cancelled big events, stocked up on medical supplies and prepared emergency responses as new infections of the virus reported around the world surpassed those in mainland China. S&P/ASX 200 index .AXJO tumbled as much 3.5% to 6,426.8 in early trade, following the trajectory on Wall St and other bourses overnight, and was hovering around that level by 0112 GMT.
The benchmark has slid 10.7% since its last peak a week ago, putting the market in a technical correction and on track for its biggest weekly fall since 2008.
"At this stage, there seems to be nothing to slow the downward momentum. If we do see further infections and further containment measures, it will have further economic impact," said Michael McCarthy, chief market strategist at CMC Markets.
"The likelihood is, with more borders being shut and more trade being impeded, we'll see further downward earnings revisions from companies and lower share prices."
McCarthy said the ASX 200 index's next major support level at 6,400 points might keep it afloat it in the short term but if breached, could trigger further falls.
As iron-ore prices tumbled, benchmark giants BHP Group BHP.AX and rival Rio Tinto (LON:RIO) RIO.AX slid over 4% each. Even gold miners .AXGD were not spared, despite a rise in bullion prices to 7-year highs this week, with the sub-index shedding nearly 1%.
The country's top lenders -Commonwealth Bank of Australia CBA.AX , Westpac Banking Corp WBC.AX , National Australia Bank NAB.AX and Australia and New Zealand Banking Group ANZ.AX -all traded around between 3.4% and 4.2% lower.
With oil prices languishing at over a year's low, energy stocks .AXEJ were also battered. Heavyweight Woodside Petroleum Ltd WPL.AX lost 5% while Santos STO.AX gave up over 7%.
Of the index's 200 stocks, just three traded in the black as of 0013 GMT.
New Zealand's benchmark S&P/NZX 50 index .NZ50 plunged nearly 3% to 11,098.79, marking its fourth straight session of declines and set for a weekly drop of nearly 7.5%, its worst performance since the financial crisis.
Among top losers, retirement village operator Ryman Healthcare RYM.NZ lost nearly 6% while dairy giant a2 Milk Company Ltd ATM.NZ slipped as much as 5.3%.