The hydromechanical properties of the uppermost basement and of the basement–sediment interface influence multiple geologic processes of societal relevance, including the flow of groundwater; the accumulation of hydrocarbons, economic minerals, and geothermal resources; and the response of seismogenic faults to wastewater disposal. Lithologic, structural, and metamorphic fabric; uplift; weathering and alteration history; and the nature of the overlying strata all play roles in controlling these hydromechanical properties.
On Sunday, April 2, 2023, a sinkhole formed on the northwestern flank of the Hull salt dome in the city of Daisetta, Texas (fig 1). This nearly circular sinkhole (figs 2 and 3), having a water-filled diameter of about 70 m, is located adjacent to the southwestern edge of the larger 2008 Daisetta sinkhole.
