Sorry about the long silence - I've had lousy internet service during my travels. Back to your usual programming...
I've worked in areas where the male:female geologist ratio is approaching 50:50, and where the majority of environmental science/engineering students coming out of college are female. But I've also worked in areas where female geologists are still a rarity, and drillers/subcontractors can refuse to work with women and not commit career suicide. Those areas aren't nearly as far south (in the US) as one might think.
So I'm wondering: what percentage of working geologists in your area are female? Are you seeing the number of women increase over time?
I don't stay up at night worrying about exact male:female ratios, but I've worked in places where female geologists are essentially unheard of, and they've been lonely and discouraging. I don't have the personality to be a pioneer, I guess.