Quantifying Sedimentation Rates In the Trinity River Delta, Texas

2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM
Paper No. 123-5

Presentation Time: 9:10 AM-9:25 AM

Quantifying Sedimentation Rates In the Trinity River Delta, Texas
TODD, Lee M.¹, SLATTERY, Michael C.¹, and PHILLIPS, Jonathan D.², (1) Environmental Science, Texas Christian University, P.O. Box 298830, Fort Worth, TX 76129, m.slattery@tcu.edu, (2) Geography, University of Kentucky, 1457 Patterson Office Tower, Lexington, KY 40506-0027 This study uses traditional coring methods to quantify Holocene sedimentation rates in the Trinity River Delta, Texas. Radiocarcbon dating of shell fragments recovered from sediment cores (292-536cm) ranged from 2.8 to 3.2 Ka. Mean sediment accumulation rates varied between 1.2 and 1.8 mm/yr for two areas of the delta, consistent with previous research. At these rates, modern sediment input from the Trinity River is inadequate to account for sediment accretion on the delta. Therefore, other non-fluvial sediment sources must be contributing to the accretion of sediment within the delta.
2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM General Information for this Meeting

Session No. 123 Sediment in Fluvial Systems: Production, Transport, and Storage at the Watershed Scale I George R. Brown Convention Center: 332BE 8:00 AM-12:00 PM, Sunday, 5 October 2008 Geological Society of America Abstracts with Programs, Vol. 40, No. 6, p. 93
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