Subsidence Properties of Holocene Sediments: S. La.

by J. N. Suhayda, Louisiana State Univ, Baton Rouge, United States,
A. Bailey, Louisiana State Univ, Baton Rouge, United States,
H. H. Roberts, Louisiana State Univ, Baton Rouge, United States,
S. Penland, Louisiana State Univ, Baton Rouge, United States,
G. Kuecher, Louisiana State Univ, Baton Rouge, United States,



Document Type: Proceeding Paper

Part of: Coastal Zone '93

Abstract:

As part of a comprehensive USGS-sponsored study of processes that drive subsidence and wetland loss in south Louisiana, two continuously cored deep borings (60 m and 72 m) were acquired in south Terrebonne Parish marshlands. Both borings were supported with in-situ geotechnical data acquired by cone penetration testing. Additional laboratory testing included X-ray radiography, lithologic description, radiocarbon dating, selected shear strength and consolidation tests, pore water geochemistry, and solid phase diagenetic properties examination (X-ray diffraction for mineralogy, thin-section petrology, and scanning electron microscopy).

Subject Headings: Penetration tests | Sediment | Physical properties | Land subsidence | X rays | Shear strength | Laboratory tests | Louisiana | United States

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