| 7:30 AM-7:00 PM, Corpus Christi, Texas: |
CANCELED: Examination of a Vertisol Climosequence across the Texas Coast Prairie and its implications for interpreting vertic paleosols in the geologic record
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| Primary Leader: Lee C. Nordt |
| Leader(s): Jonathan Wedenfield, Steven G. Driese |
| Field Trip Description: This trip showcases an examination of climate controls on soil development for soils comprising a climosequence in which all soil-forming factors, except climate, are held constant. Soils are examined in a series of soil pits excavated across the Coast Prairie region of Texas, which formed on Beaumont Fm. (circa 30-40 ka) alluvium. Soil environments range from 850-1250 mm/year mean annual precipitation and the soils are exclusively Vertisols characterized by pedogenic slickensides, angular blocky to wedge-shaped peds, soil fractures, gilgai micro-relief, Fe-Mn concretions, and both hard and soft masses of pedogenic carbonate. These soil features are translatable towards interpreting similar types of paleosols, which are abundant in the geological record. Soil series examined include Lake Charles, Laewest and Victoria. |
| Field Trip will span: 2 days |
| Sponsor(s): Sedimentary Geology Division of GSA; Division S-5 (Pedology) of Soil Science Society of America; SEPM |