Skip past header information
USGS - science for a changing world

Woods Hole Coastal and Marine Science Center

Submarine Hydrogeological Data from Cape Cod National Seashore

Skip past contents information

Table 7: Sedimentologic data from vibracores.

Site Water Depth (m) Depth Interval (cm below seafloor) Sedimentologic Description Interpreted Depositional Environment
SP2006-02 1.8 0-157 0-8 cm; dark gray to black silty fine to medium sand, worms, mottling Tidal channel
8-64 cm; medium to light gray medium sand, little to some coarse sand and gravel up to 3 cm at ~30-50 cm Tidal channel
64-83 cm; dark gray to black silty fine to medium sand Tidal channel
83-125 cm; bright orange-brown silty fine sand; 3-cm diameter spongy root or stem cutting diagonally from 83-115 cm Tidal channel
94-97 cm; gray medium sand layer Tidal channel
125-143 cm; light brown fine sand Tidal channel
143-157; orange-brown medium to coarse sand, some gravel up to 6 cm diameter Tidal channel
157-384 Medium brown to orange-brown clean fine to medium sand Glacial outwash
250-270 cm and 320 cm; layered orange-brown stringers of medium to coarse sand Glacial outwash
384-459 Medium brown to orange-brown medium to coarse sand, little to some gravel to 4 cm, less gravel toward the bottom Glacial outwash
SP2006-03 8.2 0-77 Dark gray to black silt and clay, trace to little fine sand below ~37 cm Deep flood tidal delta
33 cm; 2-cm gravel Deep flood tidal delta
50-70 cm, 3-cm moon snail, sponges, 6-cm mytilid Deep flood tidal delta
77-82 Dark gray silty fine to coarse sand, abundant shells and fragments Deep flood tidal delta
82-257 Dark blue-gray silt and clay, trace fine sand, no shells except at 274 cm (Mya?), slight banding Deep estuary
257 cm; 1-cm light gray fine sand layer Storm/breach deposit
257-372 Dark brown silt, trace to little clay; black from 266-270 cm; rare 0.5-cm gravel Kettle pond
355 cm; 1-cm medium brown medium sand layer Storm deposit
367-372 cm; dark brown silt and clay Kettle pond
372-448 Medium gray medium to coarse sand and gravel, pebbles up to 5 cm fining down to medium sand at 448 cm Ice contact stratified glacial drift
448-600 Medium yellow-brown, medium sand, little to some coarse sand, trace gravel up to 2 cm Ice contact drift
448-453 cm; orange stain Ice contact drift
480 cm; 1-cm orange stain Ice contact drift
493 cm; 0.5-cm orange stain Ice contact drift
600-607 Coarse sand and gravel Ice contact drift
SP2006-04 3.6 0-215 Dark blue-gray silt and clay, trace fine sand, trace shells, very soft, trace fibers; no fibers below 70 cm Shallow estuary
94 cm; 1 cm Mercenaria; crustacean? shell? Shallow estuary
104 cm; 2-cm Mercenaria, slightly more sand with depth Shallow estuary
140-142 cm; 2-cm Mercenaria, stiffer below Shallow estuary
193 cm; 2-cm articulated Mercenaria Shallow estuary
208 cm; 2-cm Mercenaria; no shells 208-394 cm Shallow estuary
215-400 Faint 0.5-1-cm banding below 215 cm, trace to little  fine sand, trace plant fragments (Spartina?), more brown in color Shallow estuary
394 cm; Mercenaria or Mya shell Shallow estuary
SP2006-06 0.9 0-165 Dark blue-gray to black silt and fine sand, some clay; trace clay below 20 cm; 3-cm mussels, periwinkles, Ulva at the surface, trace shells below; coarsening downward Shallow estuary/tidal flat
80-165 cm; medium gray-brown silty fine sand Shallow estuary/tidal flat
147-155 cm; articulated Mya Shallow estuary/tidal flat
165-341 Clean medium to light gray medium sand, "salt and pepper" color Tidal channel
170-176 cm; articulated Mya Tidal channel
205-207 cm; layer of shell fragments up to 1 cm long, including mud snail Tidal channel
318-320 cm; horizontal 2-cm thick by 6-cm long peat or bark "chip", shell fragments Tidal channel
341-475 Dense, dark blue-gray silt and clay, trace to some fine sand, massive (no layers), trace shell fragments and shells < 0.5 cm Shallow estuary
440-448 cm; Mya, articulated, life position, 4-cm diameter burrow above from 432 cm to shell Shallow estuary


Skip past footer information
Skip Navigation

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov logo U.S. Department of the Interior | U.S. Geological Survey

Page Contact Information: WHSC Webmaster
This page last modified on Monday, 24-Nov-2014 12:10:21 EST