Boundary | Coordinate |
---|---|
Left | 732187.189867 (survey feet) |
Right | 1263083.750119 (survey feet) |
Top | 944191.750046 (survey feet) |
Bottom | 566433.749986 (survey feet) |
Boundary | Coordinate |
---|---|
West | -73.736002 (longitude) |
East | -71.781407 (longitude) |
North | 42.052372 (latitude) |
South | 41.011537 (latitude) |
Value | Definition |
---|---|
Coarse-Grained Deposits | Areas mapped as having coarse-grained glacial meltwater deposits |
Definition Source: U.S. Geological Survey and State of Connecticut, Geological and Natural History Survey, Department of Environmental Protection | |
Fines over Coarse-Grained Deposits | Areas mapped as having fine-grained deposits overlying coarse-grained glacial meltwater deposits |
Definition Source: U.S. Geological Survey and State of Connecticut, Geological and Natural History Survey, Department of Environmental Protection | |
Other Stratified Drift Deposits | Areas mapped as having glacial meltwater deposits with lower potential ground water yield |
Definition Source: U.S. Geological Survey and State of Connecticut, Geological and Natural History Survey, Department of Environmental Protection |
Value | Definition |
---|---|
0-50 | 0 to 50 FT thickness interval |
Definition Source: State of Connecticut Geological and Natural History Survey, Department of Environmental Protection, and the U.S. Geological Survey, Department of the Interior, and Long Island Sound Resource Center | |
50-100 | 50 to 100 FT thickness interval |
Definition Source: State of Connecticut Geological and Natural History Survey, Department of Environmental Protection, and the U.S. Geological Survey, Department of the Interior, and Long Island Sound Resource Center | |
100-200 | 100 to 200 FT thickness interval |
Definition Source: State of Connecticut Geological and Natural History Survey, Department of Environmental Protection, and the U.S. Geological Survey, Department of the Interior, and Long Island Sound Resource Center | |
200-300 | 200 to 300 FT thickness interval |
Definition Source: State of Connecticut Geological and Natural History Survey, Department of Environmental Protection, and the U.S. Geological Survey, Department of the Interior, and Long Island Sound Resource Center | |
300-400 | 300 to 400 FT thickness interval |
Definition Source: State of Connecticut Geological and Natural History Survey, Department of Environmental Protection, and the U.S. Geological Survey, Department of the Interior, and Long Island Sound Resource Center |
Value | Definition |
---|---|
0-50 | 0 to 50 FT thickness interval |
Definition Source: compiler | |
50-100 | 50 to 100 FT thickness interval |
Definition Source: compiler | |
100-200 | 100 to 200 FT thickness interval |
Definition Source: compiler | |
200-300 | 200 to 300 FT thickness interval |
Definition Source: compiler | |
300-400 | 300 to 400 FT thickness interval |
Definition Source: compiler | |
400-500 | 400 to 500 FT thickness interval |
Definition Source: compiler | |
500-600 | 500 to 600 FT thickness interval |
Definition Source: compiler | |
> 600 | Greater than 600 FT thick |
Definition Source: compiler |
Value | Definition |
---|---|
Artificial Fill | This category includes SMPOLY_COD value of AF. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Beach | This category includes SMPOLY_COD value of B. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Coarse | This category includes SMPOLY_COD values of A/S, A/S/SG, A/SG, A/SG/S, G, G/SG, G/SG/S, G/S, S, S/G, S/SG, SG, SG/S, SG/S/SG, SW/S, SW/S/SG, and SW/SG. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Coarse overlying Fine | This category includes SMPOLY_COD values of A/S/F, A/SG/F, A/SG/S/F, G/F, G/S/F, S/F, SG/F, SG/S/F, SM/S/F, and SW/S/F. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Fine | This category includes SMPOLY_COD values of A/F, F, SM/F and SW/F. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Fine overlying Coarse | This category includes SMPOLY_COD values of A/F/G, A/F/S, A/F/SG, F/G, F/S, F/SG, S/F/SG, SG/F/SG, and SW/F/S. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Salt Marsh | This category includes SMPOLY_COD value SM. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Swamp | This category includes SMPOLY_COD value SW. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Till | This category includes SMPOLY_COD values A, T, TA, TS, and TT. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Water | This category includes SMPOLY_COD value W. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection |
Value | Definition |
---|---|
Coarse | This category includes SMPOLY_COD values of A/S, A/S/SG, A/SG, A/SG/S, G, G/SG, G/SG/S, G/S, S, S/G, S/SG, SG, SG/S, SG/S/SG, SW/S, SW/S/SG, and SW/SG. |
Coarse overlying Fine | This category includes SMPOLY_COD values of A/S/F, A/SG/F, A/SG/S/F, G/F, G/S/F, S/F, SG/F, SG/S/F, SM/S/F, and SW/S/F. |
Fine | This category includes SMPOLY_COD values of A/F, F, SM/F and SW/F. |
Fine overlying Coarse | This category includes SMPOLY_COD values of A/F/G, A/F/S, A/F/SG, F/G, F/S, F/SG, S/F/SG, SG/F/SG, and SW/F/S. |
Not Surficial Aquifer | This category includes SMPOLY_COD values of A, AF, B, SM, SW, T, TA, TS, TT, and W. |
Value | Definition |
---|---|
Coarse Grain Stratified Drift | This category includes SMPOLY_COD values of A/F/G, A/F/S, A/F/SG, A/S, A/S/SG, A/SG, A/SG/S, F/G, F/S, F/SG, G, G/S, G/SG, G/SG/S, S, S/F/SG, S/G, S/SG, SG, SG/F/SG, SG/S, SG/S/SG, SW/F/S, SW/S, SW/S/SG, and SW/SG |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Fine Grain Stratified Drift | This category includes SMPOLY_COD values of A/F, A/S/F, A/SG/F, A/SG/S/F, F, G/F, G/S/F, SG/F, SG/S/F, SM/F, SM/S/F, S/F, SW/F, and SW/S/F. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
Not Stratified Drift | This category includes SMPOLY_COD values of A, AF, B, SW, SM, T, TA, TS, TT, and W. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection |
Value | Definition |
---|---|
A | Floodplain Alluvium - Sand, gravel, silt, and some organic material, on the floodplains of modern streams. The texture of alluvium commonly varies over short distances both laterally and vertically, and is often similar to the texture of adjacent glacial deposits. Along smaller streams, alluvium is commonly less than 5 ft thick. The most extensive deposit of alluvium on the map is along the Connecticut River where the texture is predominantly fine to very fine sand and silt; here and along other larger rivers, it may be as much as 25 ft thick. Alluvium typically overlies thicker glacial stratified deposits, the general texture of which is indicated by the stacked unit. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/F | Alluvium overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/F/G | Alluvium overlying Fines overlying Gravel |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/F/S | Alluvium overlying Fines overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/F/SG | Alluvium overlying undifferentiated Fine deposits overlying coarse deposits (Sand and Gravel) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/S | Alluvium overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/S/F | Alluvium overlying Sand overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/S/SG | Alluvium overlying Sand overlying Sand and Gravel |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/SG | Alluvium overlying undifferentiated coarse deposits (Sand and Gravel) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/SG/F | Alluvium overlying undifferentiated coarse deposits (Sand and Gravel) overlying Fine deposits |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/SG/S | Alluvium overlying Sand and Gravel overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
A/SG/S/F | Alluvium overlying Sand and Gravel overlying Sand overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
AF | Artificial Fill - Earth materials and manmade materials that have been artificially emplaced. Artificial fill is common throughout the map area but has been shown on this map only where extensive areas of 'made land' occur, principally along the coast. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
B | Beach deposits - Sand and and gravel deposited along the shoreline by waves and currents and by wind action. The texture of beach deposits varies over short distances and is generally controlled by the texture of nearby glacial materials exposed to wave action. Beach deposits are generally well sorted and rarely more than a few feet thick. Many sand beaches along the Connecticut coast have been 'restored'; these have not been distinguished from natural beaches on this map; however, extensive beaches that consist totally of 'made-land' are mapped as artificial fill. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
F | Fines (very fine sand, silt, and clay) - Composed of well-sorted, thin layers of alternating silt and clay, or thicker layers of very fine sand and silt. Very fine sand commonly occurs at the surface and grades downward into rhythmically bedded silt and clay varves (lake-bottom deposits) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
F/G | Fines overlying Gravel |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
F/S | Fines overlying Sand-- Fines of variable thickness, commonly in thinly bedded layers overlie sand of variable thickness (distal lake-bottom deposits overlying slightly older more delta-proximal lacustrine sediment) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
F/SG | Fines overlying Sand and Gravel - Fines of variable thickness, commonly in thinly bedded layers overlie sand and gravel of ariable thickness (lake-bottom deposits overlying slightly older collapsed proximal fluvial or deltaic deposits); in a few places sand or sand and gravel, generally less than 25 ft thick occurs on top of the F/SG unit and is indicated as S/F/SG and SG/F/SG on the map, respectively |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G | Gravel - Composed mainly of gravel-sized particles; cobbles and boulders predominate; minor amounts of sand within gravel beds, and sand comprises few separate layers. Gravel layers generally are poorly sorted and bedding commonly is distorted and faulted due to postdepositional collapse related to melting of ice. Gravel deposits are shown only where observed in the field; additional gravel deposits may be expected, principally in areas mapped as unit SG (proximal fluvial deposits or delta-topset beds) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G/F | Gravel overlying Fines - Gravel is generally less than 20 ft thick, horizontally bedded and overlies thicker thinly bedded fines (proximal fluvial deposits overlying lake-bottom sediments) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G/S | Gravel overlying Sand-- Gravel is generally less than 20 ft thick, horizontally bedded, and overlies thicker, inclined layers of sand (proximal deltaic deposits) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G/S/F | Gravel overlying Sand overlying Fines - Gravel is generally less than 20 ft thick, horizontally bedded and overlies thicker inclined beds of sand which in turn overlie fines of variable thickness (proximal deltaic deposits overlying lake-bottom sediments) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G/SG | Gravel overlying Sand and Gravel - Gravel is generally less than 20 ft thick, horizontally bedded, and overlies thicker, inclined layers of sand and gravel (proximal deltaic deposits) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
G/SG/S | Gravel overlying Sand and Gravel overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
S | Sand - Composed mainly of very coarse to fine sand, commonly in well-sorted layers. Coarser layers may contain up to 25 percent gravel particles, generally granules and pebbles; finer layers may contain some very fine sand, silt, and clay (delta-foreset beds, very distal fluvial deposits, or windblown sediment) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
S/F | Sand overlying Fines - Sand is of variable thickness, commonly in inclined foreset beds and overlies thinly bedded fines of variable thickness (distal deltaic deposits overlying lake-bottom sediment) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
S/F/SG | Sand overlying Fines overlying Sand and Gravel |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
S/G | Sand overlying Gravel - Sand of variable thickness overlies gravel of variable thickness (younger distal deltaic or fluvial sediments overlying older, more proximal fluvial or deltaic sediments) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
S/SG | Sand overlying Sand and Gravel - Sand of variable thickness overlies sand and gravel of variable thickness (distal deltaic or fluvial sediments overlying slightly older proximal fluvial or deltaic sediments) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG | Sand and gravel - Composed of mixtures of gravel and sand within individual layers and as alternating layers. Sand and gravel layers generally range from 25 to 50 percent gravel particles and from 50 to 75 percent sand particles. Layers are well to poorly sorted; bedding may be distorted and faulted due to postdepositional collapse. It is likely that some deposits within this map unit actually are gravel or sand and gravel overlying sand. It is less likely that some of these deposits are sand (fluvial deposits or delta-topset beds) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG/F | Sand and Gravel overlying Fines - Sand and gravel is generally less than 20 ft thick, horizontally bedded and overlies thicker thinly bedded fines (fluvial meltwater terrace deposits overlying lake-bottom sediment) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG/F/SG | Sand and Gravel overlying Fines overlying Sand and Gravel |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG/S | Sand and Gravel overlying Sand - Sand and gravel is generally less that 20 ft thick, horizontally bedded, and overlies thicker, inclined layers of sand (deltaic deposits) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG/S/F | Sand and Gravel overlying Sand overlying Fines - Sand and gravel is generally less than 20 ft thick, horizontally bedded and overlies thicker inclined beds of sand which in turn overlie thinly bedded fines of variable thickness (deltaic deposits overlying lake-bottom sediment) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SG/S/SG | Sand and Gravel overlying Sand overlying Sand and Gravel - Sand and gravel is generally less than 20 ft thick, horizontally bedded, and overlies thicker inclined layers of sand; thickness of sand and gravel at the base of the section is variable (deltaic deposits overlying slightly older, more proximal deposits) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SM | Salt-marsh and tidal-marsh deposits - Peat and muck interbedded with sand and silt, deposited in environments of low wave energy along the coast and in river estuaries. Marsh deposits are dominantly peat and muck, generally a few feet to 35 ft thick. In the major estuaries marsh deposits may overlie estuarine deposits which are sand and silt with minor organic material as much as 40 - 90 ft thick. These deposits are generally underlain by the glacial material shown adjacent on the map; either till or sand and gravel. Where they are known or inferred to be underlain by sand or fines, they are shown on the map by stacked units. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SM/F | Salt-marsh and tidal-marsh deposits overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SM/S/F | Salt-marsh and tidal-marsh deposits overlying Sand overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW | Swamp deposits - Muck and peat that contain minor amounts of sand, silt, and clay, accumulated in poorly drained areas. Most swamp deposits are less than about 10 ft thick. Swamp deposits are underlain by glacial deposits or bedrock. They are often underlain by glacial till even where they occur within glacial meltwater deposits. Where swamp deposits are known or inferred to be underlain by sand and/or fines, they are shown on the map by the stacked unit. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/F | Swamp deposits overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/F/S | Swamp deposits overlying Fines overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/S | Swamp deposits overlying Sand |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/S/F | Swamp deposits overlying Sand overlying Fines |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/S/SG | Swamp deposits overlying Sand overlying undifferentiated coarse deposits (Sand and Gravel) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
SW/SG | Swamp deposits overlying undifferentiated coarse deposits (Sand and Gravel) |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
T | Thin Till - areas where till is generally less than 10-15 ft thick and including areas of bedrock outcrop where till is absent. Predominantly upper till; loose to moderately compact, generally sandy, commonly stony. Two facies are present in some places; a looser, coarser-grained ablation facies, melted out from supraglacial position; and a more compact finer-grained lodgement facies deposited subglacially. In general, both facies of upper till derived from the red Mesozoic sedimentary rocks of the central lowland of Connecticut are finer-grained, more compact, less stony and have fewer surface boulders than upper till derived from crystalline rocks of the eastern and western highlands. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
TA | Talus - Loose, angular blocks (mostly boulders) accumulated by rockfall at the bases of steep bedrock cliffs. Talus forms steep unstable slopes and is generally less than 10 ft thick. It occurs most extensively along the linear basalt and diabase ridges within the central lowland. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
TS | Sandy Till, Sand and Gravel, some areas of dense surface bolders (End moraine deposits) - Composed predominantly of ablation facies sandy upper till; lenses of stratified sand and gravel occur locally within the till. Surface boulders on end moraine deposits are generally more numerous than on adjacent till surfaces; dense concentrations of boulders are present in some places. Deposits occur as free-standing hummocky landforms, commonly in elongate ridges that trend NNE - SSW, and range in thickness from 10 to 60 ft. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
TT | Thick Till - areas where till is greater than 10-15 ft thick and including drumlins in which till thickness commonly exceeds 100 ft (maximum recorded thickness is about 200 ft). Although upper till is the surface deposit, the lower till constitutes the bulk of the material in these areas. Lower till is moderately to very compact, and is commonly finer-grained and less stony than upper till. An oxidized zone, the lower part of a soil profile formed during a period of interglacial weathering, is generally present in the upper part of the lower till. This zone commonly shows closely-spaced joints that are stained with iron and manganese oxides. |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection | |
W | Water - Defined as streams, lakes, ponds, bays, and estuaries greater than 5 acres in size. Surficial Material water polygon features are outlined by Surficial Material line features with a SMARC_COD attribute value of 2 (for Hydrography Shoreline). |
Definition Source: U.S. Geological Survey and State of Connecticut, Department of Environmental Protection |