I do agree that it's important to discuss the basics, and actually, that is something I try to do, but I admit perhaps not often enough. It does get quite time-consuming and many times, it seems like a waste of time because people will just scan over it if it's too technical.
A presentation of the data, much like you did for faith earlier, can help but you may also need to explain 'why' we came up with those conclusions. What does aeolian mean. What does it reflect in climate. Why would we see carbanaceous rock in the middle of what is a desert now. The scientist may need to reach back in memory to her or his early college or high school years to present those first inferences made to support the data they have now.
See, this is exactly what I was referring to, and where things often get overly technical - for me, at least. The 'why' is in the details and the details often require touching upon more complex scientific concepts, such as tectonics, sedimentology, climate change (YIKES - that's a tough one, but the effects of which are becoming increasingly important to geology, specifically Quaternary geology),and fossilization.
When someone asks how the [continental] stratigraphic column can be so complex and mainly comprised of marine rocks and marine fossils, how do you answer that without getting too complex? The flood theory would make perfect sense in this respect to the average non-scientist.
The only way to answer or explain this is to discuss eustasy, in other words global sea level change (which is often the result of climate change, as we are seeing today), and how at times of relative sea level highs, large portions of the continents are inundated with marine water. The more sedimentation, the more subsidence and sediment compaction. But we have to also discuss rates of sedimentation, basin subsidence/sinking, the sorts of sediments one would expect to find in the various depositional settings/evironments found in a beach/marine environment, the fossil types, unconformities, etc.
It can get really complicated quickly. And honestly, the only way to fully understand and appreciate geology is to see the rocks in their natural setting - pictures just don't cut it. It's pretty hard to ignore the implications of a lithified reef system or paleosols or a lava flow located stratigraphically below a thick marine sequence.
For people who have never been Teacher's Assistants or had experience explaining science to non-scientists or neo-scientists, it's not an easy thing to do to sit down to a computer and present complex scientific concepts at the drop of a hat. It's a skill I admit I don't have, but this thread has been very informative so far. It seems using real-world analogies might be helpful.