Sigsbee Knolls
Quick Summary
Sigsbee Knolls are a series of hills in the Mexico Basin, located in the Gulf of Mexico. These hills are believed to be surface expressions of underlying salt domes.1
A salt dome is a geological formation consisting of a vertical cylinder of salt, typically a kilometer or more in diameter, embedded within surrounding rock strata. These structures form due to gravity or tectonic forces, causing the lighter salt to rise and pierce through overlying rocks. Salt domes are significant because they can create traps for oil and natural gas, making them important targets in petroleum exploration. The presence of salt domes can also be detected using gravity and magnetic surveys.23
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- Mexico Basin
…middle of the basin, the Sigsbee Knolls form a series of hills that are believed to be reflections of underlying salt domes rising above the generally flat basin floor.
Read More…middle of the basin, the Sigsbee Knolls form a series of hills that are believed to be reflections of underlying salt domes rising above the generally flat basin floor.
Read More 
Gulf of Mexico / Gulf of AmericaPhysiography and geology…of the basin rise the Sigsbee Knolls, some of which attain heights of 1,300 feet (400 meters); these are surface expressions of the buried salt domes.
Read More…of the basin rise the Sigsbee Knolls, some of which attain heights of 1,300 feet (400 meters); these are surface expressions of the buried salt domes.
Read More