Further work was performed on the coverage by AKSO GIS. There were 3 polygons with node errors which were corrected , label points created, and attributes coded. A number of minor coding errors were fixed. There are still 4 polygons that have a qcode of 99 that need to be properly coded.
Qcode Deposit Type Deposit Name Qi Glacier Ice Qm4 Current moraine Glacial moraines & drift Qm3 Lightly modified moraine Glacial moraines & drift Qm2 Moderately modified moraine Glacial moraines & drift Qm1 Highly modified moraine Glacial moraines & drift Qg Proglacial lake Glacio-lacustrine Qgm/Qm3 Proglacial lake over moraine Glacio-lacustrine Note: call all these Qgm.Disregard date denominator. Qw2 Current glacial outwash Glacio-fluvial Qw1 Old glacial outwash Glacio-fluvial Qfp Floodplain Fluvial Qat Alluvial Terrace Fluvial Qaf Alluvial Fan Fluvial Qed Sand Dune Eolian Qed Upland Loess Eolian Qes Valley Loess & alluvium Eolian Qcb Beach Coastal Qcd Coastal Delta Coastal Qcc Old marine 7 alluvium Coastal Qu Undifferentiated mosaic Undifferentiated alluvium & colluvium Qra Bedrock & coarse rubble Mountain alluvium & colluvium Qrb Coarse & fine rubble Mountain alluvium & colluvium Qrc Fine rubble Mountain alluvium & colluvium Qrd Volcanic Mountain alluvium & colluvium Qre Alluvium over old alluvium Mountain alluvium & colluvium Ql Lake WaterGlacial Moraines and Associated Drift
1. Qi - Existing glaciers 2. Qm4 - Moraines and associated drift near existing glacier fronts 3. Qm3 - Prominent little modified moraines and associated drift lying above or beyond boundaries of Qm4 4. Qm2 - Modified moraines and associated drift lying above of beyond boundaries of Qm3. 5. Qm1 - Remnants of highly modified moraines and associated drift lying above or beyond boundaries of Qm2Glacio-lacustrine Deposits
1. Qg - Proglacial lake deposits 2. Qgm - Proglacial lake deposits, discontinuously mantling glacial and glacio-fluvial deposits but not completely obscuring glacial topography: age indicated by symbolsGlacio-fluvial Deposits
1. Qw2 - Outwash and valley train deposits graded to glacier fronts and recent moraines 2. Qw1 - Outwash deposits bordering older moraines: fluvial deposits further downvalley may be dissected distal parts of outwash aprons or valley trains and are included in Qat and QafFluvial Deposits
1. Qfp - Modern flood-plain and associated low-terrace and alluvial fan deposits 2. Qat - Higher terrace deposits on valley margins and discontinuous terrace deposits in valleys where flood plains are too small to map 3. Qaf - Alluvial-fan depositsEolian Deposits
1. Qed - Sand dunes: dotted pattern indicates areas of active dunes 2. Qe - Silt more than 5 feet thick, covering upland interfluve areas, predominantly eolian 3. Qes - Thick valley bottom silt and sand, predominantly eolian but including much colluvium and stratified water-laid depositsCoastal Deposits
1. Qcb - Modern coastal beaches, spits, and bars 2. Qcd - Coastal delta deposits 3. Qcc- Older coastal deposits of inter-stratified alluvial and marine sediments, including,locally, glacial driftUndifferentiated Upland Valley and Lowland Alluvium
1. Qu - Alluvium in larger upland valleys and in lowlands of central Alaska including undifferentiated eolian, colluvial, fluvial, marine, and glacial depositsUndifferentiated Alluvium and Slope Deposits in Mountainous and Hilly Regions
1. Qra - dominantly coarse rubbly deposits associated with steep-sloped mountains with high percentage of bedrock exposures 2. Qrb- Course- and fine-grained deposits associated with moderate to sleep-sloped mountains and hills with bedrock exposures largely restricted to upper slopes and crestlines 3. Qrc - Dominantly fine-grained deposits associated with gently sloping hills with rare bedrock exposures 4. Qrd - deposits with high percentages of volcanic rock particles, ash, and pumice flanking volcanic cones and peaks of Quarternary and Tertiary age 5. Qre - Discontinuous alluvial deposits overlying dissected unconsolidated, semi-consolidated, and locally consolidated silt, sand, and gravel of Tertiary and younger age