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55). The primary aim was to understand the subsurface distribution of artifacts and fan deposits across the larger landscape. Artifacts are typically deeply buried within the Chitimwe Beds in all places except at the margins, where erosion has begun to remove the top part of the deposit. During informal survey, two people walked across Chitimwe Beds that appear as mapped features on Government of Malawi geological maps. As these people encountered the shoulders of Chitimwe Bed deposits, they began to walk along the margins where they could observe artifacts eroding from the deposits. By placing excavations slightly (3 to 8 m) upslope from actively eroding artifacts, excavations could reveal their in situ locations relative to their containing sediments, without the necessity of laterally extensive excavations. Test pits were emplaced so that they would be 200- to 300-m distant from the next-nearest pit and thus capture the variation across Chitimwe Bed deposits and the artifacts they

United statesFrance generalSouth africaLake malawiMalawi generalDeutsche forschungsgemeinschaftAfrican heritage ltdPurdue universityMalawi ministry of youthEmory universityGeoarchaeology laboratoryNational geographicUniversity of queensland archaeological field schoolAustralian research council discovery projectMuseum centreKorean research foundation global network grant