What is "Quarts de Chaume"?

[wdonovan]

I'm guessing more in style like Muscat d Bd Venise than Sauternes, that is light bodied? What types of flavors would you normally find, i.e. muscat is very pronounced, as is an almost guaranteed honey taste in Sauternes? This wine sounds interesting, as I am deeply in love with almost all botrytis affected wines that I've had.