ISSN:
1432-1157
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
Notizen:
Abstract Published analyses of 61 piston cores, bottom photographs, and dredge samples provide ground truth for 6.5 kHz GLORIA side-scan sonar records of the Mississippi and De Soto fans. GLORIA sound appears to have penetrated through up to 4 m of foraminiferal ooze and terrigenous mud to reach sandy sediments. Possible primary geological causes of high backscatter include slump structures at various scales (1-〉1,000 cm), possible debris flow fabrics (roughness 1–100 cm) in sandy (5–21%) sediments, and thin ironstone crusts with a roughness of tens of centimeters.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02092105
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