We all know that terroir, that deus ex machina of wine making, has truly remarkable and extensive powers. The difficulty seems to be in pinning down just what it is and how the alleged effects come about.
I was reminded of this in reading through a catalog received in the mail today from the Village Corner in Ann Arbor. An '04 Chateau Menaut, Pessac-Leognan is described as, "100% sauvignon blanc - Crisp and generous in the usual manner. Bourdeaux sauvignon, Graves sauvignon, Dubourdieu sauvignon. Not Loire sauvignon".
Similarly, '05 Chateau Haut Grand Champ Sauvignon, Bourdeaux Blanc is said to be, "Real Bordeaux sauvignon-the kind that's not so shrill as Loire".
For those in the know about such things:
Is there much consensus for such a distinction?
If so, is there any evidence that the conditions thought responsible are reasonably well understood? For example, has somewhere else in the world been identified with conditions more similar to Bordeaux than the Loire where Sauvignon Blanc is indeed more Bordeaux-like than that in the Loire?
