U.S. Geological Survey Open-File Report 2010–1100
Surficial Geology of the Sea Floor in Long Island Sound Offshore of Orient Point, New York
SI to Inch/Pound
Phi-notation (Krumbein, 1934) as used in this report is defined as: Φ = -log 2 (d), where d is the grain diameter in millimeters. Phi-class intervals in millimeters are given in the data dictionary in the Sediments section of this report.
The frequencies of sidescan sonar and multibeam bathymetry are measured in kilohertz (kHz), 1,000 periods per second.
The vertical datum for tidal-zone measurements is mean lower low water.