It’s all about finding ancient beach sand with our archaeological coring at Aleipata. Trying to reconstruct the ancient coastline is difficult, but we are making progress.
At the southern end, near Vailoa Village, I think there was a rocky headland in the past as there are no subsurface beach sands at all, only clayey sediments overlying bedrock. Moving from Vailoa to Satitoa Village we encountered interesting beach sand layers surrrouding swampy sediments. Ancient cultural deposits? Unclear, but excavation in 2014 (with pumps!) should clear things up. We definitely need to bring a total station in 2014 to create an accurate topographic map.
Farther north up the Aleipata coast near the village of Sale’a’aumua the coastal plain is huge and we plan to core near the back of it on Saturday and next week. Wish us luck, or at least cool breezes, with oka Sāmoa and ulu for lunch.