Online Links:
Online Links:
| Value | Definition |
|---|---|
| A1 | Abbreviated symbol for A1 r_cgS where r = rippled, cgS = coarse-grained sand |
| A3 | Abbreviated symbol for A3 r_cgS where r = rippled, cgS = coarse-grained sand |
| H | Abbreviated symbol for H r_fgS where r = rippled, fgS = fine-grained sand |
| I | Abbreviated symbol for I i_fgcgS where i = immobile, fgcgS = fine- and coarse-grained sand |
| J | Abbreviated symbol for J r_cgfgS / i_pcbG where r = rippled, cgfgS = coarase- and fine-grained sand, / = overlying, or partial veneer over, i = immobile, p = pebble, c = cobble, b = boulder, G = gravel |
| K | Abbreviated symbol for K r_cgS where r = rippled, cg = coarse-grained, s = sand |
| L | Abbreviated symbol for L i_mfgS where i = immobile, m = muddy, fgS = fine-grained sand |
| M | Abbreviated symbol for M i_mcgS / pcbG where i = immobile, m = muddy, cgS = coarse-grained sand, / = overlying, or partial veneer over, p = pebble, c = cobble, b = boulder, G = gravel |
| N | Abbreviated symbol for N i_mcgS where i = immobile, m = muddy, cgS = coarse-grained sand |
| O | Abbreviated symbol for O i_mfgcgS where i = immobile, m = muddy, fgcgS = fine- and coarse-grained sand |
| P | Abbreviated symbol for P i_mfgS where i = immobile, m = muddy, fgS = fine-grained sand |
| Q | Abbreviated symbol for Q i_mfgS / pcbG where i = immobile, m = muddy, fgS = fine-grained sand, / = overlying, or partial veneer over, p = pebble, c = cobble, b = boulder, G = gravel |
| R | Abbreviated symbol for R i_fgsM where i = immobile, fgS = fine-grained sand, M = mud |
| S | Abbreviated symbol for S i_M where i = immobile, M = mud |
| T | Abbreviated symbol for T i_mcgS / pcbG where i = immobile, m = muddy, cgS = coarse-grained sand, / = overlying, or partial veneer over, p = pebble, c = cobble, b = boulder, G = gravel |
| U | Abbreviated symbol for U i_pcG where i = immobile, p = pebble, c = cobble, G = gravel |
| V | Abbreviated symbol for V i_fgsM / cbG where i = immobile, fgS = fine-grained sandy, M = mud, / = overlying, or partial veneer over, c = cobble, b = boulder, G = gravel |
| W | Abbreviated symbol for W r_cgS / i_scM where r = rippled, cgS = coarse-grained sand, / = overlying, or partial veneer over, i = immobile, s = sandy, c = cobble, M = mud |
| Value | Definition |
|---|---|
| A1 r_cgS | Rippled, coarse-grained sand. Substrate A1 is a mobile, coarse-grained sand deposit on the crest and upper western flanks of Stellwagen Bank in quadrangle 5. The topographically irregular margin of the western edge of A1 suggests that the substrate is a sheet of sand that was transported eastward across the bank crest and down the western flank of the bank. Depth range of A1 is 24 to 55 m. Mean weight percents per grain-size category: mud, <1; sand, 94 (fgS, 3; cgS, 90); gravel, 6 (G1, 5; G2, 1). Substrate A1 is dominantly coarse-grained sand and is very low in mud and fine-grained sand content. The surface is covered with storm-generated sand ripples with wavelengths of 0.5 to 1.0 m, and orientation of ripple crests varies from N-S to NW-SE. |
| A3 r_cgS | Rippled, coarse-grained sand. Substrate A3 is a mobile, coarse-grained sand deposit that lies on the crest and upper western flank of Stellwagen Bank. Depth range is 23 to 53 m. Mean weight percents per grain-size category: mud, <1; sand, 98 (fgS, 22; cgS, 76); gravel, 2 (G1, 1; G2 <1). Substrate A3 resembles substrate A1 in being a coarse-grained sand and having a very low mud content. It differs from A1 in having much more fine-grained sand, mostly as 3 phi sand (22 weight percent), and its surface ripples are smaller, with wavelengths of 10 to 20 cm. |
| H r_fgS | Rippled, fine-grained sand. Substrate H is a mobile, fine-grained sand deposit that lies on the lower western flank of Stellwagen Bank in the southern part of quadrangle 5. Depth range is 38 to 52 m. Mean weight percents per grain-size category: mud, 2; sand, 98 (fgS, 83; cgS, 15); gravel, <1 (G1, <1; G2, 0). The surface of substrate H is characterized by low, long-wavelength (approximately 40 to 50 m) ripples that are visible in bathymetric imagery as depicted by 1-m contours; shell deposits are present in ripple troughs. Substrate H has an irregular western edge, which suggests it represents a downslope-moving sand sheet. The substrate is bounded upslope to the east by the sand sheet of substrate A1 (rippled, coarse-grained sand) and downslope to the west by substrates K (rippled, coarse-grained sand) and L (immobile, fine-grained sand). Substrate H resembles substrate L in the ratio of fine- to coarse-grained sand content but contains less mud. |
| I i_fgcgS | Immobile, fine- and coarse-grained sand. Substrate I is an immobile, mixed deposit of fine- and coarse-grained sand that forms a hummocky surface on the lower western flank of Stellwagen Bank. Depth range is 44 to 71 m. Mean weight percents per grain-size category: mud, 7; sand, 92 (fgS, 41; cgS, 51); gravel, 1 (G1, 1; G2, 1). It is bounded to the east in shallower water by substrate A1 (rippled, coarse-grained sand), to the south by substrates H (rippled, fine-grained sand), and L (immobile, muddy, fine-grained sand), to the west by substrate R (fine-grained sandy mud), and to the north by substrate L. Substrate I is similar in grain-size content to the upper layer of substrate J, which it surrounds. The almost equivalent weight percents of fine- and coarse-grained sand, and its relatively high content of 3 phi sand, suggest that substrate I is a thin layer of fine-grained sand (not unlike substrates H and L) overlying an older, coarse-grained sand sheet similar to adjacent substrate A1. |
| J r_cgfgS / i_pcbG | Rippled, coarse- and fine-grained sand; partial veneer on immobile pebble, cobble, boulder gravel. Substrate J is a layered substrate of mobile sand overlying immobile gravel in a depression surrounded by substrate I on the lower flank of Stellwagen Bank. Depth range is 48 to 55 m. Mean weight percents per grain-size category of the coarse-and fine-grained sand upper layer: mud, 4; sand, 93 (fgS, 52; cgS, 40); gravel, 4 (G1, 2; G2, 2). The upper layer of substrate J is similar to substrate I in sand and mud composition. |
| K r_cgS | Rippled, coarse-grained sand. Substrate K is a mobile sand deposit on the lower flank of Stellwagen Bank east of the eastern end of Southwestern Spur. Depth range is 42 to 50 m. Mean weight percents per grain-size category: mud, 1; sand, 98; (fgS, 24; cgS, 75); gravel, <1 (G1, <1; G2, 0). Substrate K is dominantly coarse-grained sand and is low in mud and fine-grained sand (3 phi sand is more abundant than 4 phi sand). It is bounded by immobile, fine-grained sand in deeper water (substrate L) and by rippled, fine-grained sand in shallower water (substrate H). Topographic imagery suggests that substrate H is a sand sheet that has moved downslope and encroached upon substrate K from the northeast. Substrate K is texturally equivalent to substrate A3. The fact that substrate K (coarse-grained sand) lies at deeper depths than the adjacent substrate H (fine-grained sand) indicates that it was not deposited by present-day sedimentary transport processes. |
| L i_mfgS | Immobile, muddy, fine-grained sand. Substrate L is immobile fine-grained sand that is present in three areas on the lowermost western flank of Stellwagen Bank and on the eastern part of Western Spur. It lies in a region where mud content increases as water depth increases from bank to basin. Depth range is 50 to 77 m. Mean weight percents per grain-size category: mud, 10; sand, 89 (fgS 73; cgS, 17); gravel, 1 (G1, 1; G2, 0). The distribution of substrate L along the lower part of the bank is interrupted in the south by east-west trending substrate Q of Southwestern Spur and farther north by substrate I. |
| M i_mcgS / pcbG | Immobile, muddy, coarse-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate M is a layered substrate that forms the hummocky surface of the western part of Western Spur, a westward extension of Stellwagen Bank into Stellwagen Basin. Depth range is 59 to 68 m. Mean weight percents per grain-size category of the muddy, coarse-grained sand upper layer: mud, 22; sand, 73 (fgS, 13; cgS, 60); gravel, 5 (G1, 4; G2, 1). The upper layer of substrate M is dominantly coarse-grained sand with less fine-grained sand (3 phi sand is greater than 4 phi sand) and mud. The irregular surface of the substrate indicates the presence of partially-buried gravel features that are visible in bathymetric imagery as depicted by 1-m contours. In some aspects, substrate M resembles the upper layer of substrate Q, which forms the hummocky surface of Southwestern Spur to the south. The upper layer of substrate Q has a similar mud content and lies at similar water depths, but unlike substrate M, it is a muddy, fine-grained sand. Substrate M is bounded in shallower water to the east by substrate L, a muddy, fine-grained sand, and elsewhere by substrate T, a mixed substrate of mud, sand, and gravel that lies in deeper water on the flank of Western Spur. |
| N i_mcgS | Immobile, muddy, coarse-grained sand. Substrate N is an immobile, muddy, coarse-grained sand that is associated with substrates L and O in an area of hummocky topography east of the scarp that separates the base of Stellwagen Bank from Stellwagen Basin. Depth range is 58 to 65 m. Mean weight percents per grain-size category: mud, 11; sand, 73 (fgS, 10; cgS, 63); gravel, 15 (G1, 10; G2, 5). See the description of substrate L with which both substrates N and O are associated. The deposits classified as substrate N are not mappable as a coherent unit at the present scale. |
| O i_mfgcgS | Immobile, muddy, mixed fine- and coarse-grained sand. Substrate O is an immobile, muddy, mixed fine- and coarse-grained sand that is associated with substrates L and N in an area of hummocky topography along the scarp that separates the base of Stellwagen Bank from Stellwagen Basin. Depth range is 55 to 64 m. Mean weight percents per grain-size category: mud, 15; sand, 82 (fgS, 41; cgS, 41); gravel, 4 (G1, 4; G2, 0). Substrate O likely is a mixture of substrates L and N. See the description of substrate L with which both substrates N and O are associated. Similar to substrate N, the deposits classified as substrate O are not mappable as a coherent unit at the present scale. |
| P i_mfgS | Immobile, muddy, fine-grained sand. Substrate P is an immobile, muddy, fine-grained sand that lies at the base of Stellwagen Bank in two areas of Stellwagen Basin, north and south of Southwestern Spur. Depth range is 59 to 69 m. Mean weight percents per grain-size category: mud, 29; sand, 69 (fgS, 60; cgS, 10); gravel, 1 (G1, 1; G2, <1). |
| Q i_mfgS / pcbG | Immobile, muddy, fine-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate Q is a layered substrate that forms the hummocky surface of Southwestern Spur, an elongate feature that extends northwestward into Stellwagen Basin from the lower southwestern flank of Stellwagen Bank. Depth range is 54 to 73 m. Mean weight percents per grain-size category of the muddy, fine-grained sand upper layer: mud, 24; sand, 69 (fgS, 42; cgS, 26); gravel, 7 (G1, 4; G2, 3). The deeper parts of substrate Q are bounded to the north and south by mud substrates S and R, while the shallower parts to the east are bounded by muddy, fine-grained sand substrates L and P. The upper layer of substrate Q is dominantly fine-grained sand (3 phi sand is greater than 4 phi sand) with equal amounts of mud and coarse-grained sand. It resembles the upper layer of substrate M in some aspects (see above), but it is more similar to substrate P which occurs adjacent to Southwestern Spur. |
| R i_fgsM | Immobile, fine-grained sandy mud. Substrate R is immobile, fine-grained sandy mud that occupies two areas at the base of the western flank of Stellwagen Bank along the margins of Stellwagen Basin. Depth range is 71 to 88 m. Mean weight percents per grain-size category: mud, 60; sand, 40 (fgS, 37; cgS, 3); gravel, <1 (G1, <1; G2, 0). Substrate R is equivalent to the upper layer of substrate V. Substrate R is bounded on the east by the muddy, fine-grained sands of substrates that lie in shallower water on the lower western flank of Stellwagen Bank and on the flanks of Southwestern Spur and Western Spur. It is bounded on the west by substrate S in Stellwagen Basin, a mud with a fine-grained sand content of only 5 weight percent, mostly in the 4-phi category. Substrate R is characterized by the presence of fish and crab burrows. |
| S i_M | Immobile mud. Substrate S is immobile mud that occupies much of Stellwagen Basin. Depth range is 71 to 103 m. Mean weight percents per grain-size category: mud, 94; sand, 6 (fgS, 5; cgS 1); gravel, 0. Substrate S is bounded along the basin margin by substrate R (fine-grained sandy mud), which lies between S and the fine-grained sands of the lower Stellwagen Bank. Elsewhere, substrate S is bounded by muddy, fine-grained sand (upper layer of substrate Q) on Southwestern Spur, and by muddy, coarse-grained sand (upper layer of substrate T) on the flanks of Fifteen Bank and Western Spur. Substrate S is characterized by the presence of fish and crab burrows. |
| T i_mcgS / pcbG | Immobile, muddy, coarse-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate T is a layered substrate that forms a somewhat hummocky seabed on the top and flanks of Fifteen Bank and on the westward-facing flank of the adjacent Western Spur. Depth range is 70 to 103 m. Mean weight percents per grain-size category of the muddy, coarse-grained sand upper layer: mud, 34; sand, 52 (fgS, 14; cgS, 37); gravel, 14 (G1, 10; G2, 4). The substrate resembles substrate M (also a layered, muddy, coarse-grained sand) that covers the western surface of Western Spur in having similar amounts of fine-grained sand; but substrate T has a lower content of coarse-grained sand and a higher content both of mud and gravel. |
| U i_pcG | Immobile, pebble, cobble gravel. Substrate U is an immobile, gravel pavement. Video imagery revealed it to be closely-packed pebbles and cobbles with little to no sand veneer. Station 1644 (62 m) is located on the Western Edge of the bank. Weight percents per grain-size category of sediment collected from this station: mud, 10; sand, 44 (fgS, 11; cgS, 33); gravel, 46 (G1, 10; G2, 36). The sample is a mixture of the gravel pavement that forms the seabed (cobbles were observed but not collected) and the underlying sandy sediment. |
| V i_fgsM / pcbG | Immobile, fine-grained sandy mud; partial veneer on cobble, boulder gravel. Substrate V was observed in two areas in Stellwagen Basin that lie in the area occupied by substrate R. Substrate V is a layered substrate that partially covers cobbles and boulders. The upper layer of substrate V is texturally equivalent to substrate R. For mean weight percents per grain-size category of this upper layer, see substrate R. The underlying cobbles and boulders represent almost-buried mounds of gravel that produce a hummocky surface that is visible in bathymetric imagery as depicted by 1-m contours. The gravel features are partly exposed by the scouring and burrowing activities of fish. |
| W r_cgS / i_scM | Rippled, coarse-grained sand; partial veneer on immobile, semiconsolidated mud. Substrate W is a layered substrate of rippled, coarse-grained sand that partially covers outcrops of semiconsolidated mud that occurs in the area occupied by substrate A1. It was observed at 3 locations on the bank crest in quadrangle 5. Water depth range of the stations is 31 to 35 m. Grain-size analyses of all samples identified as W were used to calculate the mean weight percents of aggregates and composite grades of the sediment partial veneer overlying semiconsolidated mud: mud, <1; sand, 88 (fgS, 10; cgS, 78); gravel, 12 (G1, 11; G2, 1). Visual analysis of video imagery revealed the lower substrate to be an irregular, burrowed and fragment-strewn surface. It is interpreted to represent an outcrop of semiconsolidated mud that has been burrowed by benthic organisms. The rippled, coarse-grained sand partial upper layer was collected without disturbing the lower clay layer and is texturally very similar to substrates A1 and A3. Stations identified as deposits of substrate W in the area occupied by substrate A1 are not mappable as a coherent unit at the present scale. |
| Range of values | |
|---|---|
| Minimum: | -70.40784 |
| Maximum: | -70.22247 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | 42.20299 |
| Maximum: | 42.32185 |
| Units: | decimal degrees |
| Value | Definition |
|---|---|
| ANDR93023 | vessel Anderson, 1993, field activity 23 |
| ANDR95015 | vessel Anderson, 1995, field activity 15 |
| ANDR95036 | vessel Anderson, 1995, field activity 36 |
| ARGO94014 | vessel Argo Maine, 1994, field activity 14 |
| AUK2013044 | vessel Auk, 2013, field activity 44 |
| AUK2014015 | vessel Auk, 2014, field activity 15 |
| AUK2014055 | vessel Auk, 2014, field activity 55 |
| AUK2014066 | vessel Auk, 2014, field activity 66 |
| AUK2015017 | vessel Auk, 2015, field activity 17 |
| AUK2015062 | vessel Auk, 2015, field activity 62 |
| AUK2016038 | vessel Auk, 2016, field activity 38 |
| AUK2019008 | vessel Auk, 2019, field activity 8 |
| CAND98022 | vessel Christopher Andrew, 1998, field activity 22 |
| DIAN96025 | vessel Diane G, 1996, field activity 25 |
| DLWR93006 | vessel Delaware II, 1993, field activity 6 |
| DLWR93030 | vessel Delaware II, 1993, field activity 30 |
| DLWR99011 | vessel Delaware II, 1999, field activity 11 |
| FERL94004 | vessel Ferrel, 1994, field activity 4 |
| FERL95012 | vessel Ferrel, 1995, field activity 12 |
| FERL96038 | vessel Ferrel, 1996, field activity 38 |
| FERL98029 | vessel Ferrel, 1998, field activity 29 |
| ISBL96037 | vessel Isabel S, 1996, field activity 37 |
| ISBL98017 | vessel Isabel S, 1998, field activity 17 |
| Range of values | |
|---|---|
| Minimum: | 23 |
| Maximum: | 103 |
| Units: | meters |
| Range of values | |
|---|---|
| Minimum: | 1993 |
| Maximum: | 2019 |
| Units: | year |
| Value | Definition |
|---|---|
| 5 | Quadrangle 5 of Stellwagen Bank National Marine Sanctuary |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 0 |
| Units: | cm |
| Range of values | |
|---|---|
| Minimum: | 2 |
| Maximum: | 2 |
| Units: | cm |
| Range of values | |
|---|---|
| Minimum: | 15.8 |
| Maximum: | 748.3 |
| Units: | grams |
| Range of values | |
|---|---|
| Minimum: | 1.3 |
| Maximum: | 100 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 51.3 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 45.5 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 86.8 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 98.7 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 10.2 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 17.3 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 21.8 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 24.6 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 24.3 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 20.3 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 54.9 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 53.4 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 89.1 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0.2 |
| Maximum: | 97.6 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 71.4 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 74.0 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 65.8 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 99.2 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 37.7 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 15.2 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 45.7 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 18.8 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 24.3 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 6.0 |
| Units: | percent |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 36.5 |
In the CSV file, the column headings are not truncated. The truncation is a function of converting to a shapefile with a 10-character attribute header limit. In addition to the shapefile and CSV file, there is an accompanying Excel spreadsheet (q5_stations_geology.xlsx). Additional information regarding abbreviations is in the first row of the spreadsheet.
That following information is the second row of the spreadsheet, the more robust header information. This is presented as column: column heading: description.
Column A: USGS SBNMS Stations: Station number for samples collected during this project in the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Column B: Geologic substrate symbol: Symbol of substrate shown on maps
Column C: Substrate name: Combination of substrate unit symbol and abbreviation of substrate descriptive name (see column AV)
Column D: Photos: Collected (TRUE) or did not collect (FALSE) seabed photographs at the station
Column E: Video: Collected (TRUE) or did not collect (FALSE) video imagery at the station
Column F: Sample: Collected (TRUE) or did not collect (FALSE) sediment sample at the station
Column G: USGS-DBID: USGS sediment grain size analysis database identification; n.d., no data
Column H: Longitude west, decimal degrees: Longitude west in decimal degrees
Column I: Latitude north, decimal degrees: Latitude north in decimal degrees
Column J: WHCMSC field activity (cruise) no.: USGS Woods Hole Coastal and Marine Science Center field activity (cruise) number. Example ANDR95036. ANDR is vessel name code (Peter W. Anderson), 95 is last two digits of year, and 036 is the 36th field activity of the year.
Column K: Sample collection water depth, m: Water depth at which sample was taken, in meters
Column L: Sample collection year: Year sediment sample was collected
Column M: Sample collection date, DDD:HH:MM:SS GMT: Date expressed as Julian Day (DDD) and time as HOUR:MINUTES:SECONDS Greenwich Mean Time (GMT) at which sample was collected (GMT same as UTC, Universal Coordinated Time, and ZULU, military time)
Column N: Quad: Quadrangle number in SBNMS region in which sample was collected
Column O: Sampler used: Sediment sample collected by a USGS modified Van Veen (VV) grab sampler http://woodshole.er.usgs.gov/operations/sfmapping/seaboss.htm
Column P: Sediment sample top, cm below seabed surface: Top of sediment sample is the seabed surface (0 centimeters)
Column Q: Sediment sample bottom, cm below seabed surface: Bottom of sediment sample is 2 centimeters below the seabed surface
Column R: Dry sediment sample mass, g: Mass of dry sediment used for grain-size analysis in grams
Column S: Sand, wt pct: Weight percent of sand in sample
Column T: Gravel, wt pct: Weight percent of gravel in sample
Column U: Clay, wt pct: Weight percent of clay in sample
Column V: Silt, wt pct: Weight percent of silt in sample
Column W:Mud (clay+silt), wt pct: Weight percent of mud (combined clay and silt) in sample
Column X: 11-phi-size class (clay), wt pct: Weight percent of 11-phi-size sediment in sample
Column Y: 10-phi-size class (clay), wt pct: Weight percent of 10-phi-size sediment in sample
Column Z: 9-phi-size class (clay), wt pct: Weight percent of 9-phi-size sediment in sample
Column AA: 8-phi-size class (very fine silt), wt pct: Weight percent of 8-phi-size sediment in sample
Column AB: 7-phi-size class (fine silt), wt pct: Weight percent of 7-phi-size sediment in sample
Column AC: 6-phi-size class (medium silt), wt pct: Weight percent of 6-phi-size sediment in sample
Column AD: 5-phi-size class (coarse silt), wt pct: Weight percent of 5-phi-size sediment in sample
Column AE: 4-phi-size class (very fine sand), wt pct: Weight percent of 4-phi-size sediment in sample
Column AF: 3-phi-size class (fine sand), wt percent: Weight percent of 3-phi-size sediment in sample
Column AG: fine-grained sand (fgS) (4 + 3 phi), wt pct: Weight percent of combined 3-phi- and 4-phi-size sediment in sample
Column AH: 2-phi-size class (medium sand), wt pct: Weight percentage of 2-phi-size sediment in sample
Column AI: 1-phi-size class (coarse sand), wt pct: Weight percent of 1-phi-size sediment in sample
Column AJ: 0-phi-size class (very coarse sand), wt pct: Weight percent of 0-phi-size sediment in sample
Column AK: Coarse-grained sand (cgS) (2 + 1 + 0 phi), wt pct: Weight percent of combined 2-phi-, 1-phi-, and 0-phi-size sediment in sample
Column AL: -1-phi-size class (granule), wt pct: Weight percent of -1-phi-size sediment in sample
Column AM: -2-phi-size class (pebble), wt pct: weight percent of -2-phi-size sediment in sample
Column AN: Gravel 1 (G1) (-1 + -2 phi), wt pct: G subscript 1 weight percent of combined -1-phi- and -2-phi-size sediment in sample
Column AO: -3-phi-size class (pebble), wt pct: Weight percent of -3-phi-size sediment in sample
Column AP: -4-phi-size class (pebble), wt pct: Weight percent of -4-phi-size sediment in sample
Column AQ: -5-phi-size class (pebble), wt pct: Weight percent of -5-phi-size sediment in sample
Column AR: Gravel2 (G2) (-3 + -4 + -5 phi), wt pct: G subscript 2 weight percent of combined -3-phi-, -4-phi-, and -5-phi-size sediment in sample
Column AS: Sand ripples present: Indicates if sand ripples were observed in video at the station location
Column AT: Substrate unit name translation: Describes the mobility, texture, and layering of the sediment substrate
Column AU: Polygon locations of sample stations used to map substrates. Polygon locations of samples that cannot be mapped as a coherent substrate and are represented by a square symbol: Indicates if identified substrate at the sample location can be mapped as a substrate and what substrate the sample falls in, or cannot be mapped as a coherent substrate indicating in what substrate polygon the sample falls followed by a symbol representation as a square.
Column AV: Comment: Explanatory notes for selected stations.
Online Links:
Online Links:
Online Links:
Online Links:
Online Links:
| Access_Constraints | None. |
|---|---|
| Use_Constraints | None. |
| Data format: | The dataset contains the shapefile, Excel spreadsheet and CSV file as well as the browse graphic and associated CSDGM metadata. in format Shapefile (version ArcGIS 10.8.1) Size: 0.5 |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalog/file/get/63a09185d34e0de3a1f27734 https://www.sciencebase.gov/catalog/item/63a09185d34e0de3a1f27734 https://doi.org/10.5066/P9W9BN3S |
| Data format: | The dataset contains the shapefile, Excel spreadsheet and CSV file as well as the browse graphic and associated CSDGM metadata. in format XLSX (version Excel 365) Size: 0.5 |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalog/file/get/63a09185d34e0de3a1f27734 https://www.sciencebase.gov/catalog/item/63a09185d34e0de3a1f27734 https://doi.org/10.5066/P9W9BN3S |
| Data format: | The dataset contains the shapefile, Excel spreadsheet and CSV file as well as the browse graphic and associated CSDGM metadata. in format CSV (version Excel 365) Size: 0.5 |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalog/file/get/63a09185d34e0de3a1f27734 https://www.sciencebase.gov/catalog/item/63a09185d34e0de3a1f27734 https://doi.org/10.5066/P9W9BN3S |
| Data format: | Web mapping service of the dataset. in format WMS (version 1.3.0) |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalogMaps/mapping/ows/63a09185d34e0de3a1f27734?service=wms&request=getcapabilities&version=1.3.0 https://www.sciencebase.gov/catalog/item/63a09185d34e0de3a1f27734 https://doi.org/10.5066/P9W9BN3S |
| Data format: | Web feature service of the dataset. in format WFS (version 1.0.0) |
|---|---|
| Network links: |
https://www.sciencebase.gov/catalogMaps/mapping/ows/63a09185d34e0de3a1f27734?service=wfs&request=getcapabilities&version=1.0.0 https://www.sciencebase.gov/catalog/item/63a09185d34e0de3a1f27734 https://doi.org/10.5066/P9W9BN3S |
