By Jeremy Gaunt, European Investment Correspondent
LONDON, Feb 19 (Reuters) - Hefty bank writedowns from losses in credit markets rattled European investors on Tuesday while Asian stock markets were relatively bullish and oil and metal prices rose unabated.
Platinum reached a new all-time high and gold climbed. Oil gained more than $1 a barrel. The dollar was weaker against a basket of major currencies.
Investors' attention in Europe was focused clearly on the banking sector with sharp reminders from Barclays <BARC.L> and Credit Suisse <CSGN.VX> that the subprime mortgage crisis triggered last year is not over.
Barclays said it was raising its 2007 writedown on the value of risky assets to 1.6 billion pounds ($3.12 billion). Credit Suisse said it had marked down the value of asset-backed investments by $2.85 billion.
The impact was to send the pan-European FTSEurofirst 300 <
> stock index down nearly 1 percent. The DJ STOXX bank sector index <.SX7P> lost nearly 2 percent.Investors have been particularly concerned over recent months of market turmoil that the full extent of losses from credit exposure is unknown and a kind of moveable feast of bad news.
Credit Suisse's writedown announcement, for example, came only a few weeks after it released its earnings report.
"It has brought all the doubting Thomases out, saying 'Hang on a minute, is it the end of the write-offs season? Or is there more to come?'" said David Buik of Cantor Index.
Sentiment outside Europe was more bullish. MSCI's main emerging market index <.MSCIEF>, for example, was up 0.8 percent for a month-to-date gain of 2.8 percent.
Japan's Nikkei index <
> climbed to a two-week high on demand for shares in commodity trading houses and exporters. The benchmark hit a high of 13,853, its highest since Feb. 5, before paring gains to close at 13,757.91, a rise of 0.9 percent.
HEAVY METAL
Demand for metals continued. Platinum <XPT=> surged to a record high for the 14th straight session as supply fears persisted after power shortages in South Africa disrupted production.
The metal, mainly used in autocatalysts and jewellery, touched a record high of $2,136 an ounce in Europe.
Gold <XAU=> was up around 0.6 percent at $911.
The rise in gold was partly the result of a weaker dollar. The U.S. currency sunk to a two-week low against the euro and fell against the yen while increased expectations of a rise in Australian interest rates boosted high-yielding currencies.
"We are seeing euro/dollar rallying as people continue to price in expectations of more negativity on the U.S. macro side, and the prospect of more rate cuts," said Jeremy Stretch, strategist at Rabobank.
The euro was up half a percent at $1.4727 <EUR=>, around its highest in two weeks. The dollar was down 0.4 percent against the yen at 107.76 yen <JPY=>.
Euro government bond prices were higher as equities fell.
The two-year Schatz yield <EU2YT=RR> was 6 basis points down at 3.15 percent while the 10-year Bund <EU10YT=RR> was yielding 3.97 percent, down 4 basis points. (Editing by Mike Peacock)