https://www.noel-amano.com/blog daily 0.75 2024-11-27 https://www.noel-amano.com/blog/earliest-open-air-site monthly 0.5 2024-11-27 https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/decf6ef2-6c35-4a51-8477-534103cf8f53/DSC_0542.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/eee9acba-b610-401d-b66f-85a39ac45791/Fig+2+low%400.33x.jpg Blog - Earliest Open-Air Site in Coastal Sri Lanka - Make it stand out Excavation of the Pathirajawela site https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/a65352e7-35ce-442c-b034-6d5d458fc5af/DSC_1600+-+Copy.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka The OSL dates suggest that Pathirajawela records human occupation starting from 25,000 years ago and not from 74,000 as previously estimated. We provide an explanation for this in the paper- noting the challenges in the older thermoluminescence dating method, particularly considering the type of sediment found in the site. We describe in detail the changes in patterns of stone artefact manufacture in Pathirajawela, from the use of bigger flaked tools to the utilization mostly of microliths. We estimate the shift to have occurred around 14,000-15,000 years ago. We modelled the distribution of stone artefacts in the stratigraphy, using the 3D coordinates we have of almost 2000 stone artefacts. We recorded three major phases of artefact accumulation dating to roughly 5000, 14,000 and 25,000 years ago. Interestingly, we noticed that these phases correspond to the same sediment units where we recorded high magnetic susceptibility measurements, which we hypothesize to correspond to periods with increased moisture or vegetation. https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730743819585-52R301FLR7KXD4Z26F34/DSC_0635.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730743832594-T338Y5NGR05AXFT9S43Q/DSC_0617.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730743849284-OVUG8BKJDHLUK98FUM4R/DSC_0762.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730743886494-36Q7LTBHT136NPHLHFHJ/DSC_0792.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730743894391-6TBZ953LZ94G4CWOPP41/DSC_0925.JPG Blog - 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Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744231509-ME6K9YVZONQW5AGZO1ZN/IMG_0247.jpeg Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744378043-B19GOL1JQZ4LHUSSLZMH/DSC_1509+copy.jpg Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744131612-XBKXVY7UTONABQ9VF7V9/IMG_0250.jpeg Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744389957-Z83A9MVQSM2ZDBQ23PT6/DSC_1449.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744407447-DHDF84D6FE7RUZ1TSS99/DSC_0569.JPG Blog - Earliest Open-Air Site in Coastal Sri Lanka https://images.squarespace-cdn.com/content/v1/655bd4791bce2f06ce789f4b/1730744419113-TE1OMJL7KHB6GNGVCMRN/DSC_1509+copy.jpg Blog - 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