THE HYDROSTRATIGRAPHY OF THE GUADALUPE RIVER STATE PARK AND HONEY CREEK STATE NATURAL AREA, COMAL AND KENDALL COUNTIES, TEXAS
The methods involved with hydrostratigraphic mapping include field observation and measuring the outcrop and describing the geology, porosity types, and structural features. The outcrop mapping is supplemented with borehole (i.e., well) data and geophysical data from the area of outcrop to better understand the surface and subsurface boundaries of the rock strata’s porosity and permeability characteristics.
Mapping the geology, structure and hydrostratigraphy in the area of the two parks involves an effort is to verify if the hydrostratigraphic subdivisions of the middle Trinity aquifer identified from cores and geophysical logs in northern Bexar County, Texas are mappable in surface outcrops at an extended distance. If surface correlations can be identified the resulting hydrostratigraphic map will depict the geologic features that control the infiltration and movement of ground water, such as porosity and permeability; whether they exist naturally in the rock strata or they result from the external affects of changes in the geologic structure such as diagenesis, dissolution, fracturing and faulting.