• Integrated petrography, field classification, and stratigraphic synthesis created unified sedimentary rock frameworks, bridging microscale composition with regional geology and enabling cross‑regional correlations. [3] [1] [18] [10] [9] [5]

• Coastal and marine sedimentology emphasized estuarine dynamics and continental margins, reconstructing paleoenvironment and sediment transport across ocean basins. [6] [12] [11] [7] [20] [14] [15]

• Geochemical and mineralogical analyses used to infer provenance, diagenesis and trace-element distribution, grounding sedimentary interpretations in mineral identity and composition. [19] [16] [8] [17]

• Experimental and theoretical treatments of sediment properties and processes, including porosity, permeability, and sedimentation mechanics. [17] [18]

• Regional stratigraphy and cross-continental correlations provided methodological basis for linking formations across North America and adjoining regions. [10] [9] [5] [18]