I. Introduction
A salt dome is a mound-shaped structure and is formed by the rock salt which is impermeable. As the sediment gives pressure to the layer of salt, which causes an increase in the density, buoyancy decreases to make salt flow vertically and form a diapir eventually. Due to the characteristics of the salt dome, interpreting salt dome is essential in petroleum geology. Knowing the exact location of the salt dome not only helps people find petroleum more effectively but also protects drillers from dangerous situations. Although there are some studies [1]–[6] using deep learning algorithm to help salt delineation, interpreting salt dome is still a challenging task due to the limited number of experts, arduous data collection, and data annotation.