{"public_id":"CTF-EDA-000003","vault":"EDA","record_type":"sediment-layer","record_type_label":"Sediment layer","title":"Charcoal band, 40 to 50 cm, radiocarbon dated","summary":"A charcoal-rich band at the base of the bleached horizon, dated to the fourth millennium BCE.","description":"Charcoal fragments were radiocarbon dated (calibrated). The band records a fire in the pinewood in the Neolithic. Whether people or lightning set it cannot be told from this sample alone.","evidence_tier":"T2","verification_status":"expert","time":{"start":-3600,"end":-3300,"precision":"century","uncertainty_years":150,"dating_method":"radiocarbon","bands":["holocene"]},"geometry_public":{"type":"point","coordinates":[-3.6503,57.2172]},"precision_class":"exact","sensitivity_class":"open","locality_public":"Abernethy Forest, Strathspey, Scotland","place":{"id":"abernethy-forest","name":"Abernethy Forest","type":"site"},"depth":{"top_m":0.4,"bottom_m":0.5},"rights":{"licence":"CC-BY-4.0","licence_label":"CC BY 4.0","licence_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Chronos Terra Foundation field survey with radiocarbon laboratory report (illustrative placeholder)","rights_holder":"Chronos Terra Foundation","source_name":"Chronos Terra field survey","source_url":"https://chronos-terra.example.org/sources#field-survey","retrieved_on":"2026-09-01","mode":"hosted","citation":"Chronos Terra Foundation (2026). Charcoal band, 40 to 50 cm. CTF-EDA-000003."},"media":[],"links":[{"to":"CTF-EDA-000001","to_title":"Pinewood podzol profile, Abernethy","to_vault":"EDA","to_tier":"T1","type":"found-in","label":"Found in","tier":"T1","note":"The charcoal band sits at the base of the E horizon of this profile.","citation":"Chronos Terra field survey 2021.","direction":"out","to_time":{"start":2021,"end":2021}}],"registry":{"registered_on":"2026-09-01","version":"abad1631f9e1","url":"https://chronos-terra.example.org/records/CTF-EDA-000003","json_url":"https://chronos-terra.example.org/generated/records/CTF-EDA-000003.json"}}