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U.S. Geological Survey Open-File Report 2009-1001

Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts

Skip past contents information Title | List of Figures | Conversion Factors | Abstract | Introduction | Setting | Methods | Bathymetry | Sidescan Sonar | Seismic Profiles | Sediments | Bottom Photography | Data Catalog | Summary | Acknowledgments | References Cited | Contacts

Bottom Photography

Stations 1-20

Station  /   Lithologic Description

E1   /   Gently undulating and faintly current-rippled sand and muddy sand. Drifting and attached seaweed, burrows, and patches of shells (primarily Crepidula) and shell debris are common. Small finfish, whelk, and spider crabs and tracks are present.
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E1A		 Thumbnail of bottom photograph and link to larger image.
E1B		 Thumbnail of bottom photograph and link to larger image.
E1C		 Thumbnail of bottom photograph and link to larger image.
E1D

 
E2   /   Gently undulating and faintly current-rippled sand with abundant burrows. Scattered shell debris and seaweed. Small fish are present.
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E2B		 Thumbnail of bottom photograph and link to larger image.
E2C

 

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E2D
E3   /   Gravelly sediment with patchy seaweed and scattered shells (primarily scallop) and shell debris. Burrows, whelk, and drag marks are present.
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E3A		 Thumbnail of bottom photograph and link to larger image.
E3B		 Thumbnail of bottom photograph and link to larger image.
E3C		  
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E3D		 Thumbnail of bottom photograph and link to larger image.
E3E

 

 

  
E4   /   Undulating sand. Abundant burrows with scattered to dense seaweed, patchy shells (Crepidula and razor clam) and shell debris, small fish, and whelk and whelk egg casings are present.
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E4A		 Thumbnail of bottom photograph and link to larger image.
E4B		 Thumbnail of bottom photograph and link to larger image.
E4C


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E4D
E5  /   Sand with dense patches of seaweed and shells (Crepidula and scallop) and shell debris. Burrows and whelk are present.
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E5A		 Thumbnail of bottom photograph and link to larger image.
E5B		 Thumbnail of bottom photograph and link to larger image.
E5C
  
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E5D		 Thumbnail of bottom photograph and link to larger image.
E5E

 

 


  
E6   /   Sand with scattered patches of dense seaweed. Spider crabs, whelk, burrows, and a trace of shell debris are present.
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E6A		 Thumbnail of bottom photograph and link to larger image.
E6B		 Thumbnail of bottom photograph and link to larger image.
E6C


 
E7   /   Undulating sand with abundant burrows. Whelk, spider crabs, small fish, and a trace of attached seaweed are present.
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E7B		 Thumbnail of bottom photograph and link to larger image.
E7C		  
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E7D		 Thumbnail of bottom photograph and link to larger image.
E7E

 

 

 

  
E8  /   Undulating sand with burrows, seaweed, and scattered shell debris. Small fish, whelk, spider crabs, and drag marks from seaweed-rafted shell debris are present.
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E8A		 Thumbnail of bottom photograph and link to larger image.
E8B		 Thumbnail of bottom photograph and link to larger image.
E8C


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E8D
E9   /   Flat to gently undulating sand bottom. Burrows, small fish, whelk and whelk egg casings, small fish, shells (razor clam) and debris, and spider crabs and tracks are present.
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E9C
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E9D
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E9E		 Thumbnail of bottom photograph and link to larger image.
E9F

 

 


  
E10   /   Muddy sand with dense to patchy Crepidula shells and shell debris. Burrows, drifting and attached seaweed, whelk, spider crabs, and small fish are present.
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E10B		 Thumbnail of bottom photograph and link to larger image.
E10C

 
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E10D		 Thumbnail of bottom photograph and link to larger image.
E10E

 

 

 
E11   /   Muddy sand with abundant seaweed and Crepidula shells. Whelk, small fish, and burrows are present.
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E11A		 Thumbnail of bottom photograph and link to larger image.
E11B		 Thumbnail of bottom photograph and link to larger image.
E11C
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E11D

 

E12   /   Undulating to faintly rippled sand with abundant seaweed and shells (Crepidula and scallop) and shell debris. Burrows are present.
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E12A		 Thumbnail of bottom photograph and link to larger image.
E12B		 Thumbnail of bottom photograph and link to larger image.
E12C

 

 
E13   /   Sand with patchy to dense seaweed. Shells and shell debris are common; burrows, whelk, and small fish are present.
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E13B		 Thumbnail of bottom photograph and link to larger image.
E13C

 
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E13D		 Thumbnail of bottom photograph and link to larger image.
E13E

 

 

 
E14   /   Faintly rippled to undulating sand. Attached and clast-rafting seaweed with drag marks are common. Burrows, crabs, and shell debris are present.
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E14C		   
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E14D		 Thumbnail of bottom photograph and link to larger image.
E14E

 

 

 

   
E15   /   Faintly rippled to undulating sand with abundant volcano-shaped burrows. Attached and clast-rafting seaweed with drag marks and shell debris are present.
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E15C		  
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E15D		 Thumbnail of bottom photograph and link to larger image.
E15E

 

 

 

E16   /   Gravel and sand with dense Crepidula shells. Scattered attached seaweed is present.
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E16C

 

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E16D
E17   /   Faintly rippled sand with scattered to patchy attached and clast-rafting seaweed with drag marks. Burrows and shell debris are present; patches of eelgrass are present near end of drift transect.
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E17B		 Thumbnail of bottom photograph and link to larger image.
E17C

 
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E17D		 Thumbnail of bottom photograph and link to larger image.
E17E

 

   
E18   /   Boulders overgrown with seaweed with intervening patches of gravel and sand. Fish, patches of eelgrass, shell debris, and seaweed-rafting drag marks are present.
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E18A		 Thumbnail of bottom photograph and link to larger image.
E18B		 Thumbnail of bottom photograph and link to larger image.
E18C
  
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E18D		 Thumbnail of bottom photograph and link to larger image.
E18E

 

 


  
E19   /   Faintly rippled sand. Burrows, crabs, whelk egg casings and scattered clasts of gravel and shells being seaweed rafted are present.
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E19B		 Thumbnail of bottom photograph and link to larger image.
E19C
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E19D 

 

E20   /   Faintly rippled sand with scattered and dense patches of seaweed. Shells, shell debris, burrows, and small fish are present.
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E20A		 Thumbnail of bottom photograph and link to larger image.
E20B		 Thumbnail of bottom photograph and link to larger image.
E20C
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E20D 

Skip past contents information Title | List of Figures | Conversion Factors | Abstract | Introduction | Setting | Methods | Bathymetry | Sidescan Sonar | Seismic Profiles | Sediments | Bottom Photography | Data Catalog | Summary | Acknowledgments | References Cited | Contacts


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