Geologic map that depicts the surface geology of Galveston and Chambers Counties and parts of Waller, Harris, Liberty, Jefferson, Orange, Brazoria, Matagorda, Wharton, and Fort Bend Counties. This Sheet was published as a memorial to the late Paul Weaver, distinguished Texas geologist and geophysicist, who was associated with Gulf Oil Corporation in Houston for many years and later with Texas A&M University. After retirement from Gulf in 1953, Mr. Weaver devoted his attention to water resources and conservation from both the humanitarian and scientific viewpoint.

Paleoenvironmental analysis of the alternating beds of the basal Cretaceous Glen Rose Formation in Central Texas indicates a cyclical alternation of subtidal through supratidal facies. These facies were reconstructed through detailed analysis of lithology, biota (including macrofauna, microfauna, ichnofauna, and macroflora), detrital shell dispersal, and primary sedimentary structures. Facies succession indicates that each cycle represents a subtidal to supratidal depositional regime transit; cycles are regressional, with the transgressional phase being poorly developed, if at all.