Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014

2000 ◽  
Author(s):  
David C. Twichell ◽  
V.A. Cross ◽  
K.F. Parolski
Keyword(s):  
Continental Shelf ◽  
Surface Sediment ◽  
Sidescan Sonar ◽  
Sediment Samples ◽  
Geologic Interpretation ◽  
Inner Continental Shelf

Sidescan-sonar imagery of the shoreface and inner continental shelf, Wrightsville Beach, North Carolina

1998 ◽  
Author(s):  
E. Robert Thieler ◽  
William C. Schwab ◽  
Mead A. Allison ◽  
Jane F. Denny ◽  
William W. Danforth
Keyword(s):  
North Carolina ◽  
Continental Shelf ◽  
Sidescan Sonar ◽  
Inner Continental Shelf

Particle Size Effects on Concentration of Metals in Lake Erie Bottom Sediments

1984 ◽  
Vol 19 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Alena Mudroch
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Clay Minerals ◽  
Surface Sediment ◽  
Size Effects ◽  
Lake Erie ◽  
Size Fraction ◽  
Mineralogical Composition ◽  
Major Elements ◽  
Sediment Samples

Abstract Surface sediment samples obtained at the offshore and nearshore area of Lake Erie were separated into eight different size fractions ranging from <2 µm to 250 µm. The concentration of major elements (Si, Al, Ca, Mg, K, Na, Fe, Mn and P), metals (Zn, Cu, Cr, Ni, V, Co and Pb) and organic matter was determined together with the mineralogical composition and morphology of the particles in each size fraction. The distribution of the metals in the offshore sediment was bimodal with the majority of the metals divided between the 63 to 250 um size fraction which also contained the highest concentration of organic matter (about 20%) and the <4 µm fraction containing up to 60% of clay minerals. However, the metals in the nearshore sediment were associated mainly with the clay minerals.

Sign in / Sign up

Export Citation Format

Share Document