Summary Seismic interpretation of stratigraphy and sedimentology is frequency and scale dependent. Frequency dependency offers a new dimension of seismic data that has not been fully utilized in seismic stratigraphy. Seismic events are a function of wavelet and acoustic impedance profile. Seismic interferences, controlled mainly by thickness- and frequency-tuning effects, determine occurrence of seismic events and types of seismic facies. By analyzing an amplitude-versus-frequency plot, we can intentionally modify seismic events and seismic facies to a certain degree to better integrate well and seismic interpretation.