Accession Number : ADA255683


Title :   Archaeological Geology of the Fort Hood Military Reservation, Fort Hood, Texas


Descriptive Note : Final rept.


Corporate Author : TEXAS A AND M UNIV COLLEGE STATION ARCHEOLOGICAL RESEARCH LAB


Personal Author(s) : Nordt, Lee C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a255683.pdf


Report Date : Jun 1992


Pagination or Media Count : 188


Abstract : The soils and alluvial stratigraphy of eight streams at Fort Hood, Texas, were investigated between September 1989 and July 1990 to develop a site- prediction model for interpreting the buried Prehistoric and Historic cultural record. The eight streams included the Leon River and seven upland creeks: Cowhouse, Table Rock, House, Owl, Henson, Reese, and North Nolan. Soil-sediment analyses of seven soil pedons, radiocarbon assays of 50 samples, and field investigations that included over 100 trenches and cutbanks, revealed three geomorphic surfaces and five stratigraphic units common to the upland streams and four geomorphic surfaces and six stratigraphic units unique to the Leon River. The geomorphic surfaces were designated, from oldest to youngest, as T3, T2, T1, and T0. Common to all streams were five informally recognized stratigraphic units named the Jackson (approx. 15,000 B.P.), Georgetown (approx. 11,000 to 8200 B.P.), Fort Hood (8000 to 4800 B.P.), West Range (4300 to 600 B. P.), and Ford (600 B.P. to present). The older Reserve alluvium (15,000) was unique to the Leon River basin. Late Quaternary climatic shifts, coupled with supply and depletion of upland soils, were apparent mechanisms governing periods of channel degradation and aggradation. In the seven upland drainage basins, Terrace 2 (T2) was underline by the Jackson alluvium, while T1, a composite terrace, was underlain by the Georgetown, Fort Hood, and West Range alluvium. On all upland streams except Cowhouse, a low-relief topographic scarp separated the Fort Hood and West Range alluvium and warranted subdivision of T1 into T1a and T1b components, respectively.


Descriptors :   *GEOLOGY , *ARCHEOLOGY , *SOIL CLASSIFICATION , DEPLETION , DEGRADATION , PREDICTIONS , SOILS , DRAINAGE , TEXAS , STREAMS , SEDIMENTATION , SEDIMENTS , GEOMORPHOLOGY , RIVERS , TRENCHES , STRATIGRAPHY , ROCK , ALLUVIUM


Subject Categories : Humanities and History
      Geology, Geochemistry and Mineralogy
      Soil Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE