{"text_format":"dbase-jsonl-2026-09-30","columns":[{"name":"SYMBOL","type":"number","width":3,"decimals":0},{"name":"OVERPRINT","type":"number","width":3,"decimals":0},{"name":"QCLASS","type":"number","width":4,"decimals":0},{"name":"UNIT_LABEL","type":"character","width":5},{"name":"GEOLOGIC_U","type":"character","width":185}],"n_rows":195,"rows_kept":195,"cut":false,"deleted_skipped":0,"read_ended":"whole","bounds":"16MiB/16384/4096/first_that_fit","version":"dbase_level_three","encoding_class":"enc_single_byte","reader":"statdb_count/9"}
[948,null,98,"nm","Unmapped"]
[948,null,99,"bu","Bedrock"]
[74,null,101,"g","Ice fields or glaciers"]
[300,null,102,null,"Water (streams, lakes, ocean)"]
[20,null,1000,"Qs","Surficial deposits, undifferentiated"]
[210,21,1030,"Qtf","Tidal flat and estuarine deposits, offshore, subject to inundation"]
[0,31,1040,"Qad","Avalanche deposits"]
[40,null,1050,"Qa","Alluvium"]
[20,131,1060,"Qaf","Alluvial fan deposits"]
[20,139,1061,"Qao","Older alluvial fans"]
[20,131,1063,"Qafs","Alluvial deposits, Partially submerged alluvial fans and cones"]
[141,null,1070,"Qc","Colluvium"]
[141,139,1071,"Qaft","Talus and rubble deposits"]
[141,131,1072,"Qcb","Bluff colluvium"]
[141,21,1073,"Qcf","Fine-grained colluvial deposits, may be solifluction related?"]
[141,21,1074,"Qcs","Deposits of steep alpine fans, intermediate between alluvial fans and talus cones"]
[492,null,1080,"Qls","Landslide deposits"]
[492,131,1081,"Qlsm","Mudflow and debris-flow deposits"]
[40,21,1090,"Qoa","Older alluvium"]
[40,31,1091,"Qoo","Alluvial plains; may include outwash"]
[40,131,1100,"Qt","Terrace deposits"]
[40,139,1102,"Qto","High level, older terrace deposits"]
[80,null,1110,"Qac","Abandoned channel deposits"]
[80,131,1111,"Qacc","Abandoned channel deposits, possibly due to catastrophic draining of a glacial lake."]
[602,null,1120,"Ql","Lacustrine deposits"]
[143,null,1130,"Qsw","Swamp deposits"]
[112,null,1140,"Qlv","Levee deposits"]
[21,null,1150,"Qb","Beach deposits"]
[21,131,1151,"Qbe","Beach deposits, elevated beach ridges"]
[402,null,1160,"Qes","Estuarine deposits"]
[133,null,1170,"Qmt","Marine and lake terrace deposits"]
[133,131,1171,"Qlt","Lake terrace deposits"]
[155,null,1180,"Qms","Mineral spring deposits"]
[131,21,1190,"Qda","Active dune deposits"]
[131,null,1200,"Qd","Dune deposits"]
[131,21,1201,"Qda","Active dunes"]
[131,131,1202,"Qdi","Inactive dunes"]
[131,139,1203,"Qds","Sand sheets (sandur)"]
[162,null,1210,"Qfl","Loess, Fairbanks loess"]
[422,null,1220,"Qsu","Frozen silt, undifferentiated"]
[602,61,1230,"Qglf","Glacial outwash derived fans deposited in ephermeral glacial lakes"]
[602,21,1240,"Qgl","Glaciolacustrine deposits"]
[602,21,1241,"Qgl","Glaciolacustrine deposits associated with older glacial deposits, early Wisconsin or older"]
[420,null,1250,"Qm","Glacial deposits, undivided, of Holocene and/or Pleistocene age"]
[722,null,1260,"Qsg","Superglacial drift"]
[724,131,1270,"Qrg","Rock glacier deposits"]
[112,null,1280,"Qsf","Solifluction deposits"]
[242,null,1290,"Qek","Esker deposits"]
[242,null,1291,"Qek","Esker deposits associated with older glacial deposits, early Wisconsin or older"]
[822,null,1300,"Qnd","Drift, neoglacial"]
[822,21,1301,"Qlia","Moraine of Little Ice Age glacial advance"]
[822,131,1302,"Qng","Moraine of pre-Little Ice Age glacial advances"]
[220,null,1310,"Qno","Outwash deposits, Neoglaciation"]
[690,null,1350,"Qwu","Drift, undivided, Wisconsin-age Glaciations:  Aleknagik, Brooks Lake, Naptowne, Donnelly"]
[690,21,1351,"Qwub","Drift, undivided, Wisconsin-age Glaciations:  Brooks Lake"]
[37,61,1352,"Qwua","Drift, undivided, Wisconsin-age Glaciations:  Aleknagik, mostly ground and younger drift deposits"]
[690,101,1353,"Qwun","Drift, undivided, Wisconsin-age Glaciations:  Naptowne"]
[690,101,1354,"Qwud","Drift, undivided, Wisconsin-age Glaciations:  Donnelly"]
[690,510,1355,"Qwui","Drift, undivided, Wisconsin-age Glaciations:  Itkillik age"]
[562,null,1360,"Qw4","Riley Creek glaciation, also Brooks Lake, Iliuk, late Wisconsin"]
[562,31,1363,"Qw4t","Elmendorf/Tanya advance, Naptowne Glaciation, latest Wisconsin"]
[630,null,1370,"Qw3","Till, Brooks Lake, Newhalen"]
[630,31,1373,"Qw3s","Till, Naptowne, Skilak"]
[630,136,1375,"Qw3i","Drift, Wisconsin-age Glaciations:  Late Itkillik age"]
[653,139,1380,"Qw2","Till, Brooks Lake, Iliamna"]
[653,21,1382,"Qw2a","Drift, Wisconsin-age Glaciations:  Aleknagik"]
[653,31,1383,"Qw2ad","Drift, other than ground moraine, Wisconsin-age Glaciations:  Aleknagik"]
[653,141,1384,"Qw2k","Drift, Wisconsin-age Glaciations:  Naptowne, Killey"]
[653,136,1385,"Qw3i","Drift, Wisconsin-age Glaciations:  Itkillik II age"]
[974,139,1390,"Qw1","Till, last glacial maximum (LGM)"]
[974,21,1391,"Qw1k","Till, Brooks Lake, Kvichak"]
[974,61,1392,"Qw1o","Glacial deposits of the Okstukuk glaciation"]
[974,101,1393,"Qw1m","Glacial deposits of the Naptowne glaciation, Moosehorn Stade"]
[622,null,1400,"Qwo","Outwash deposits, Late Wisconsin-age Glaciations;  Outwash, Riley Creek Glaciation, late Wisconsin"]
[622,21,1401,"Qw3o","Latest Wisconsin outwash deposits"]
[622,61,1402,"Qw2o","Mid-range Late Wisconsin outwash deposits"]
[622,131,1403,"Qw1o","Earliest Late Wisconsin outwash deposits"]
[644,510,1410,"Qoc","Channeled glacial deposits -- kame and kettle?"]
[644,null,1450,"Qwd","Drumlin deposits in ground moraine fields of Brooks Lake glacial deposits"]
[664,143,1460,"Qwd","Kame fields, and a few narrow and sinuous eskers that contain mainly gravel and sand, poorly to well-bedded and sorted"]
[664,183,1470,"Qwd","Morainal deposits inferred to have been modified during glacioestuarine or glaciolacustrine inundation"]
[40,61,1480,"Qwd","Deposits of complex origin in the central Cook Inlet basin"]
[402,121,1500,"Qes","Glacio-estuarine deposits, Pleistocene"]
[402,null,1501,"Qesh","Glacio-estuarine deposits, Hood Lake deposits, overlie Bootlegger Cove Formation, Anchorage vicinity, Pleistocene"]
[402,131,1510,"Qbc","Glacio-estuarine deposits, Bootlegger Cove Formation, Anchorage vicinity, Pleistocene"]
[null,121,1600,"Qrd","Rock-defended terraces"]
[null,31,1610,"Qat","Altiplanation terraces"]
[450,null,1700,"Qdl","Deltaic deposits, including outwash and alluvial deposits"]
[922,null,1900,"Qew","Glaciations of early Wisconsin age:  Mak Hill, Healy, Eklutna, Iowithla"]
[922,511,1901,"Qewm","Glaciations of early Wisconsin age:  Mak Hill"]
[922,21,1902,"Qewi","Glaciations of early Wisconsin age:  Iowithla"]
[922,61,1903,"Qewk","Glaciations of early Wisconsin age:  Knik"]
[922,61,1904,"Qewk","Glaciations of early Wisconsin or late Sangamon (Late stage 5) age:  Itkillik I"]
[924,null,1910,"Qewd","Drumlins associated with early glaciations"]
[922,131,1920,"Qewk","Early Wisconsin or late Sangamon (late stage 5) kame and kame terraces deposits"]
[922,131,1940,"Qewg","Early Wisconsin ground moraine"]
[922,131,1941,"Qewg","Early Wisconsin ground moraine, Mak Hill"]
[922,139,1942,"Qewg","Early Wisconsin ground moraine, Iowithla"]
[922,131,1943,"Qewg","Early Wisconsin ground moraine, Knik terraced moraines"]
[643,null,1950,"Qewo","Older Wisconsin age outwash"]
[643,21,1951,"Qmo","Older Wisconsin age outwash, Mak Hill"]
[643,61,1952,"Qio","Older Wisconsin age outwash, Iowithla"]
[643,131,1953,"Qko","Older Wisconsin age outwash, Knik"]
[643,131,1954,"Qko","Older Wisconsin age or late Sangamon (late stage 5) outwash, Itkillik I"]
[814,null,2000,"Qiu","Illinoian glaciations"]
[814,21,2010,"Qig","Illinoian glaciations, ground moraine"]
[814,21,2020,"Qmik","Illinoian glaciations, kame deposits"]
[502,null,2100,"Qio","Outwash older than Wisconsin-age"]
[71,null,2150,"Qiu","Deposits related to but peripheral to older glaciations, primarily associated with Cook Inlet region"]
[742,null,2200,"Tmu","Pliocene(?) glaciations"]
[744,null,2210,"Tmo","Pliocene(?) glaciations, outwash"]
[521,null,2700,"Qfr","Fringing and fossil carbonate reefs"]
[824,null,2750,"Qsb","Scoured bedrock; may be covered with thin glacially derived deposits"]
[20,21,2800,"QTs","Surficial deposits, undivided"]
[21,21,2820,"QTmb","Semiconsolidated marine beach deposits"]
[21,131,2840,"QTts","Tilted sedimentary rocks at South Bight, Amchitka Island"]
[190,null,2850,"QTg","High-level gravel"]
[50,null,2900,"QTf","Faneto Formation"]
[729,null,2950,"Qpm","Placer and anthropogenic deposits"]
[303,null,3000,"Qv","Volcanic rocks, undivided"]
[303,61,3010,"Qw","Wrangell Lava, younger part"]
[303,71,3011,"Qww","Wrangell Lava, younger part, Wrangell Volcano shield lavas"]
[303,121,3012,"Qwwv","Wrangell Lava, younger part, Wrangell Volcano, valley-fill lavas"]
[303,139,3013,"Qwwd","Wrangell Lava, younger part, Mt. Drum Volcano lava flows"]
[303,41,3014,"Qwws","Wrangell Lava, younger part, Mt. Sanford Volcano lava flows"]
[303,131,3015,"Qwwc","Wrangell Lava, younger part, Capital Volcano shield and intracaldera lavas"]
[148,131,3016,"Qwwt","Wrangell Lava, younger part, Mt. Tanada shield and intracaldera lavas"]
[505,null,3050,"Qhv","Holocene volcanic rocks"]
[2,null,3060,"Qhvd","Domes associated with Holocene volcanic centers"]
[54,null,3100,"Qpd","Pyroclastic (Ash and debris flow) deposits"]
[3,null,3110,"Qafd","Ash-flow and ash-fall deposits"]
[3,71,3111,"Qtph","Ash-fall deposits"]
[3,21,3113,"Qafd","Ash-flow tuff and air fall of Aniakchak caldera"]
[23,null,3120,"Qdf","Debris-flow deposits"]
[23,71,3121,"Qdfo","Debris-flow deposits, older Redoubt, still Holocene"]
[23,121,3122,"Qdfy","Debris-flow deposits, younger Redoubt, late Holocene"]
[234,null,3130,"Qmf","Mudflow deposits"]
[342,null,3140,"Qav","Volcanic avalanche deposits"]
[424,null,3160,"Qshc","Hyaloclastite or aquagene tuff"]
[464,null,3170,"Qvs","Bedded volcanic sediments"]
[624,null,3200,"Qcs","Cinder and spatter cones"]
[null,509,3210,null,"Pit craters and calderas {feature, not really unit}"]
[624,21,3220,"Qed","Explosion debris"]
[624,31,3221,"Qedm","Explosion debris, maar deposits"]
[546,null,3300,"Qvb","Basalt of Togiak River Valley, or basalt flows"]
[546,null,3301,"Qvb","Tholeiitic basalt of Mekoryuk, Brunhes, normally magnetized"]
[112,null,3330,"Qvt","Trachyte flows"]
[26,null,3340,"Qvm","Mugearite and benmoreite flows"]
[26,21,3350,"Qva","Andesite and low silica dacite"]
[112,21,3360,"Qvda","Dacite and rhyodacite"]
[112,71,3370,"Qvr","Rhyolite"]
[415,null,3400,"Qvd","Viscous domes in young Hawaiian volcanic rocks, Hawi and Laupahoehoe Volcanic Series"]
[415,21,3410,"Qvdt","Viscous domes in young Hawaiian volcanic rocks, trachyte"]
[415,71,3420,"Qvdm","Viscous domes in young Hawaiian volcanic rocks, mugearite and benmoreite"]
[419,null,3430,"Qvdb","Viscous domes in young Hawaiian volcanic rocks, basalt"]
[204,null,3450,"Qgm","Small masses of gabbro in young Hawaiian volcanic rocks, Kahuku Volcanic Series"]
[576,null,3500,"QTb","Basalt"]
[546,121,3502,"Qbmr","Tholeiitic basalt of Mekoryuk, Matuyama, reversally magnetized"]
[546,515,3503,"Qbm","Tholeiitic basalt of Mekoryuk, Matuyama, normally magnetized"]
[576,71,3550,"Qhvu","West Molokai Volcanic Series (upper), Kanapou Volcanic Series (lower), East Molokai, Lanai, Honolua, Wailuku, Honomanu, Plololu, Hamakua, and Ninole Volcanic Series - Early Pleistocene"]
[576,21,3551,"Qwj","Wrangell Lavas, Mt. Jarvis volcanoes shield and intracaldera lavas"]
[624,71,3560,"Qhcu","West Molokai Volcanic Series (upper) and East Molokai, Lanai, Honolua, Honomanu, Kanapou, Pololu, and Hamakua Volcanic Series cinder, spatter, and littoral cones"]
[419,21,3580,"Qhvd","East Molokai Volcanic Series (upper), Honolua Volcanic Series viscous domes"]
[609,null,3590,"Qhgm","West Molokai Volcanic Series (lower) and Wailuku, Kula, Kanapou, and Pololu Volcanic Series, gabbro masses"]
[314,null,3600,"Qhvl","Koolau and West Molokai (lower) Volcanic Series - Early Pleistocene"]
[624,131,3700,"Qhcl","Koolau and West Molokai (lower) Volcanic Series, cinder, spatter, and littoral cones"]
[108,null,4000,"Qi","Intrusive rocks, undivided"]
[108,21,4010,"Qvdr","Dacitic to rhyolitic domes"]
[108,71,4011,"Qwdr","Wrangell Lavas, Mt. Drum volcano domes, dacite and rhyolite"]
[108,121,4012,"Qwsr","Wrangell Lavas, Mt. Sanford volcano dome, rhyolite"]
[108,131,4013,"Qwjd","Wrangell Lavas, Mt. Jarvis volcanoes, dome, dacite"]
[283,null,4020,"Qanp","Andesite plug domes"]
[626,null,4030,"Qds","Radial dike swarm and plug"]
[739,null,4040,"Qbd","Basalt dome"]
[409,null,4500,"QTv","Quaternary and/or Tertiary volcanic rocks, undifferentiated"]
[409,139,4510,"QTa","Andesitic lava"]
[112,121,4520,"QTd","Dacite"]
[26,71,4530,"QTr","Rhyolite"]
[204,121,4540,"QTob","Olivine basalt flows"]
[174,null,4550,"QTw","Wrangell Lava"]
[576,null,4560,"QTb","Basalt"]
[158,null,4600,"QTi","Intrusive rocks"]
[809,null,4620,"QTqk","Quartz keratophyre dikes"]
[809,null,4630,"QTad","Porphyritic dikes and stocks of hornblende andesite and dacite"]
[158,21,4650,"QTwr","Wrangell Lava, rhyodacite and rhyolite domes and associated pyroclastic rocks"]
[185,null,4660,"QTvb","Pochnoi Volcanics - Tuff-breccia, lava flows, and agglomerate, largely basaltic"]
[133,null,4700,"QTva","Quaternary and/or Tertiary pyroclastic flow deposits"]
[321,null,4750,"QTk","Kiska Harbor Formation"]
[321,21,4760,"QTkb","Kiska Harbor Formation, breccia member"]
[321,121,4770,"QTkf","Kiska Harbor Formation, flow member"]
[185,71,4800,"QTkv","Kula volcanic series and equivalents, undivided"]
[185,21,4801,"QTkp","Kula volcanic series and equivalents, pyroclastic rocks and tuff"]
[293,null,4900,"QTc","Quaternary or Tertiary metamorphic rocks, particularly in Mt. Dana area on Port Moller map"]
[948,null,5000,"bu","Bedrock, all types"]
[948,null,9999,"bu",null]