OBJECTID,MapUnit,Name,FullName,Age,Description,HierarchyKey,ParagraphStyle,Label,Symbol,AreaFillRGB,AreaFillPatternDescription,DescriptionSourceID,GeoMaterial,GeoMaterialConfidence,DescriptionOfMapUnits_ID
1,Qal,Alluvium,Alluvium,Quaternary,"Medium to dark grayish brown, locally reddish brown, poorly sorted, unconsolidated cobbles, pebbles, sand, silt.  Locally thicker layers of moderately sorted, rounded cobbles or pebbles reflecting previous locations of stream channel.  Thickness is typically less than 3 feet, but locally may be as thick as 10 feet.Medium to dark grayish brown, locally reddish brown, poorly sorted, unconsolidated cobbles, pebbles, sand, silt.  Locally thicker layers of moderately sorted, rounded cobbles or pebbles reflecting previous locations of stream channel.  Thickness is typically less than 3 feet, but locally may be as thick as 10 feet. Medium to dark grayish brown, locally reddish brown, poorly sorted, unconsolidated cobbles, pebbles, sand, silt.  Locally thicker layers of moderately sorted, rounded cobbles or pebbles reflecting previous locations of stream channel.  Thickness is typically less than 3 feet, but locally may be as thick as 10 feet.",1-1,Header1,Qal,none,"255,255,179",no pattern,DS01,Alluvial sediment,High,DMUID01
2,Qt,Terrace Deposits,Terrace Deposits,Quaternary,"Reddish brown, clayey to sandy matrix containing rounded pebbles to cobbles of sandstone, vein quartz, and quartzite.  These deposits are locally present along current stream levels of Toms Creek and the Monacacy River, but at a higher level than the present stream level.  Thickness ranges from a thin veneer to more than 10 feet thick.",1-2,Header1,Qt,none,"255,242,102",no pattern,DS01,Sedimentary material,High,DMUID02
6,Trg,Gettysburg Formation,Gettysburg Formation,Triassic,"Cyclically interbedded reddish gray, laminated, very fine-grained sandstone, sandy siltstone and red to reddish brown shale to rooted mudstone.  Sandstone and siltstone intervals are commonly laminated to cross-laminated and siltstone intervals are mudcracked.  Mudstone intervals are pervasively rooted and show signs of incipient soil development.  Along the base of Catoctin Mountain a narrow belt of limestone conglomerate marks the western edge of the Gettysburg Basin in Maryland. The thickness of the Gettysburg Formation is 8,000 feet (2,440 m) Emmitsburg Quadrangle.",4,Header1,^g,none,"175,217,217",no pattern,DS01,Sandstone and mudstone,High,DMUID06
8,Trn,New Oxford Formation,New Oxford Formation,Triassic,"The New Oxford Formation consists of interbedded, gray, pinkish gray, and reddish brown, fine- to coarse-grained sandstone, brownish red to reddish gray siltstone, red mudstone, shale, and calcareous claystone.  Sandstone or sandstone-dominated intervals (Trns) are mapped where they can be identified.  Sandstone intervals in the lower part of the formation are gray, coarse to very coarse grained, cross-bedded, exhibit sharp bases, and are interbedded with rooted calcareous mudstone containing caliche paleosols.  Higher in the formation, sandstones are more lenticular, and are red-brown in color, and are increasingly finer grained, and interbedded with red, silty shale.  These lenticular red sandstone intervals contain sharp, erosional bases and distinctive large-scale epsilon cross-bedding and a upsection fining.  Mudstone and claystone intervals in this part of the formation are thoroughly root-mottled and contain light gray, caliche carbonated nodules. Thickness is estimated at 6000 feet in the Emmitsburg Quadrangle.",5,Header1,^n,none,"171,247,243",no pattern,DS01,Sandstone and mudstone,High,DMUID08
9,Trni,Irishtown Member,"New Oxford Formation, Irishtown Member",Triassic,"Thin and discontinuous lenses and wedges of reddish brown, moderately well sorted, poorly cemented quartz-pebble conglomerate interbedded with red brown coarse-grained sandstone and red mudstone. Pebbles are equidimensional and typically moderate well to well-rounded.  Locally, pebbles exhibit indication of cross-bedding and grading from pebbles and cobbles to granules. Present at the base of the New Oxford Formation, but not mapped separately. Thickness is 0 to 350 feet.",5-2,Header2,^noi,none,"100,152,254",no pattern,DS01,Clastic sedimentary rock,High,DMUID09
18,Trns,Sandstone beds,"New Oxford Formation, sandstone beds",Triassic,"The New Oxford Formation consists of interbedded, gray, pinkish gray, and reddish brown, fine- to coarse-grained sandstone, brownish red to reddish gray siltstone, red mudstone, shale, and calcareous claystone.  Sandstone or sandstone-dominated intervals (Trnos) are mapped where they can be identified.  Sandstone intervals in the lower part of the formation are gray, coarse to very coarse grained, cross-bedded, exhibit sharp bases, and are interbedded with rooted calcareous mudstone containing caliche paleosols.  Higher in the formation, sandstones are more lenticular, and are red-brown in color, and are increasingly finer grained, and interbedded with red, silty shale.  These lenticular red sandstone intervals contain sharp, erosional bases and distinctive large-scale epsilon cross-bedding and a upsection fining.  Mudstone and claystone intervals in this part of the formation are thoroughly root-mottled and contain light gray, caliche carbonated nodules. Thickness is estimated at 6000 feet in the Emmitsburg Quadrangle.",5-1,Header1,^ns,none,"120,201,168",no pattern,DS01,Sandstone,High,DMUID18