{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"GLAC_TYPE","type":"character","width":50},{"name":"NON_GLAC","type":"character","width":25},{"name":"DESC","type":"character","width":60}],"n_rows":8,"rows_kept":8,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_absent","reader":"statdb_count/9"}
["ice margin","-9999","Retreatal position of stagnant-ice margin"]
["meltwater channel","-9999","Meltwater channel"]
["meltwater spillway","-9999","Meltwater spillway"]
["questionable synglacial sea maximum","-9999","Generalized max extent of late Wisconsinan synglacial sea"]
["synglacial sea maximum","-9999","Generalized max extent of late Wisconsinan synglacial sea"]
["-9999","cross section","Cross-section line"]
["-9999","gravel pit extent","Extent of large pits in surficial materials"]
["-9999","-9999","Null value"]