B1: observe and document weathering (15 points)
weathering is happening all around us, although most of the time we don’t even notice it. for this exercise, you need to look around the region where you live, find some evidence of mechanical or chemical weathering, photograph it, and then describe what you see in the photo. some examples are frost-heaving on a road, freeze-thaw weathering of a rock exposure, tree-roots pushing rocks apart, lichen growing on a rock, a rusty stain on a rock exposure, a crack in a building stone or sidewalk, dissolution or other weathering of a headstone or other old monument, and so on. ask your open learning faculty member for if you can’t think of a place to look. include your photo with your response, and write a few sentences about the weathering effects that you can see in the photo. provide some evidence in the photo that you were there when it was taken (e. g., a piece of paper with your name on it).
b2: photograph and describe a depositional environment (15 points)
sediments are also being deposited all around us, and for this exercise you need to go and find and photograph a depositional environment. some examples might be a section of a stream, lake, wetland, beach, delta, bay of the ocean, and so on. don’t hesitate to ask your open learning faculty member for . include a photo with your response. describe what type of sediments (clay, silt, sand, pebbles etc.) you think are being deposited (based on what you can see or what you think should be there), and speculate about how long this particular sedimentary basin has existed. do you think it’s likely that these sediments will be turned into rock at some time in the future, or is it more likely that they will be re-eroded and deposited elsewhere? again, provide some evidence in the photo that you were there when it was taken.