Erica,
Further to your Dec. 24 comment in response to the question from Alex re use of geology in genealogy I have several comments.
1. Yes, Indigenous genealogy has its own challenges if we try to chart it. When human remains have been removed from their original burial context and placed in museums we have a particular challenge in answering Geni's call to identify the burial location. However, you are right that science (archaeology and aspects of geology in particular) can shed light on the COMMUNITIES of ancient times. Our Project has an archaeology link which has considerable promise.
2. Yes, geology can illuminate population movements.
3. In archaeology in North America we talk about tool kits of the ancient ancestors and the fact that there is significant diagnostic information in the ancients' preferences for certain distinctive types of chert in stone tool manufacture and use. Lithics, including macroscopic approaches to analysis, is a broad and productive field of study.
4. By collating archaeological sites far from Lake Superior with native copper from Lake Superior we can infer the trade relationships of groups and patterns of movement across the land.
5. Because of the popularity of shoreline sites for settlement, understanding the location of ancient shorelines is extremely helpful in increasing the likelihood of finding occupation sites of the ancient ones. The best results come from understanding quaternary geology. Higher archaeological potential exists at the mouths of ancient rivers so we need specialized quaternary geology background to undertake such investigation.
6. People have always liked having dry feet so nastawgans (routes through the land) are easier to find if we have skill at identifying eskers.
There are many other examples. The best overall understanding comes from blending genealogy with archaeology and aspects of geology.