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Origin of Whewelite-Rich Rock Crust in the Lower Pecos Region of Southwest Texas (1996-03)

On September 22, 2008 By NCPTT

A calcium oxalate (whewellite)-rich crust occurs on exposed limestone surfaces in dry rock and open air shelters in the Lower Pecos region of southwest Texas.

Nature of a Whewellite-Rich Rock Crust Associated with Pictographs in Southwest Texas (1999-17)

On September 22, 2008 By NCPTT

A whewellite-rich rock crust covers vast areas of limestone inside dry rock shelters and under rock overhangs throughout the Lower Pecos Region in southwestern Texas (USA).

Finding and Mapping Buried Archaeological Features in the American Southwest: New Ground-Penetrating Radar Techniques and Three-Dimensional Computer Mapping (1998-04)

On September 22, 2008 By NCPTT

New techniques of ground-penetrating radar (GPR) acquisition and computer processing were tested at buried archaeological sites in the American Southwest.