abstract:In reflection seismology, a dim spot is a local low amplitude seismic attribute anomaly that can indicate the presence of hydrocarbons and is therefore known as a direct hydrocarbon indicator. It primarily results from the decrease in acoustic impedance contrast when a hydrocarbon (with a low acoustic impedance) replaces the brine-saturated zone (with a high acoustic impedance) that underlies a shale (with the lowest acoustic impedance of the three), decreasing the reflection coefficient.
Maxim's is arguably the most famous dim sum spot in town, a 32-year-old restaurant in the middle of packed Central district that serves classic Hong Kong-style dishes to locals and visiting dignitaries.