{"data_url":"https:\/\/intchron.org\/public.php?record=egyptdb\/Saqqara_Unas_Pyramid_Cemetery","json_application":"INTCHRON.Project","records":[{"site":"Saqqara Unas Pyramid Cemetery","country":"Egypt","record":"Saqqara_Unas_Pyramid_Cemetery","longitude":31.216400146484375,"latitude":29.868999481201172,"file":"https:\/\/intchron.org\/archive\/EgyptDB\/EgyptDB20\/record\/Saqqara_Unas_Pyramid_Cemetery.json","file_data":{"json_application":"INTCHRON.Record:4","header":{"environment":"Desert edge","z_type":null,"z_basis":null,"z_units":null,"t_source":null,"suppress_t":null,"suppress_z":null,"record_comment":null,"site":"Saqqara Unas Pyramid Cemetery","country":"Egypt","region":"Lower Egypt","latitude":29.868999481201172,"longitude":31.216400146484375,"elevation":0,"record":"Saqqara_Unas_Pyramid_Cemetery","site_type":"Archaeological","color":"rgb(204,204,0)"},"series_list":[{"series":"Radiocarbon","series_type":"R_Dates","parameter_list":"~z,~z_range,period,dynasty,reign,context,longitude,latitude","header_list":"","selected":true,"data":{"t":[-2325.49],"t_sigma":[92.7904],"labcode":["BM-346"],"sample":["EDB_1056"],"qual":[""],"r_date":[3860],"r_date_sigma":[60],"material":["plant remains"],"taxon":["reed"],"d13C":[-25.6],"period":["Old Kingdom\/1st Int."],"dynasty":[0],"reign":[""],"context":["Reed used as bonding between mud-brick c"],"longitude":[31.2164],"latitude":[29.869]},"refs":["doi:10.1017\/s0033822200008420"]}],"refs":["doi:10.1017\/s0033822200008420"],"changed":true}}],"bibliography":[{"ref":"barker1971bmn","firstauthor":"Barker","year":1971,"reftype":"article","author":"Barker, H and Burleigh, R and Meeks, N","title":"British Museum natural radiocarbon measurements VII","journal":"Radiocarbon","volume":"13","number":"02","pagefrom":166,"pageto":188,"series":"","publisher":"","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"http:\/\/dx.doi.org\/10.1017\/s0033822200008420","doi":"10.1017\/s0033822200008420","isbn":"","citation":"Barker et al., 1971","reference":"Barker, H., Burleigh, R. and Meeks, N. (1971) British Museum natural radiocarbon measurements VII. Radiocarbon, 13(02), pp.166-188. doi:10.1017\/s0033822200008420"}],"compilation":{"by":"Christopher Ramsey","url":"https:\/\/intchron.org\/archive\/EgyptDB\/EgyptDB20\/index.json","updated":null,"retrieved":"2025-10-24T04:49:33+01:00"},"schema":"https:\/\/intchron.org\/schema"}