Here’s a good ol’ plea for help from the scientific community. As my questions to “the scientific community” via Academia.edu have gone unnoticed, I’m posting this out here to see if anyone else searching for the same thing has had any luck. [Since then, I’ve discovered ResearchGate, which I generally like better for questions like this. 2014-03-05]
I’m building a GIS (geographic information system) model to determine the possible biogeographic districbution of a genus through time. What I need for this, since the fossils are from South America, is a good geologic map, either of most of the continent or of the countries of Brazil, Argentina, Ecuador, and Peru. Hunting around online hasn’t shown me anything that I want to shell out a bunch of money for, site unseen, and I’m honestly trying to avoid having to scan paper maps and register them (additionally, I haven’t been able to access our worldwide collection of paper geologic maps recently).
1:500,000 or 1:100,000 would be great, but I’d even take 1:1,000,000 at this point. I need something with formational contacts so I can plot possible distributions.
So that’s the challenge of the day: have any geologists in South America discovered a good source for this type of material? Would you be willing to share or trade?