Electrically isolated streamer section

A marine geophysical survey system, comprising:

• a vessel;
• an electromagnetic (EM) field source cable operable to be disposed in a body of water and coupled to the vessel, wherein the EM field source cable comprises an EM field source that is operable to emit an EM field;
• a sensor assembly operable to be disposed in the body of water and coupled to the vessel, wherein the sensor assembly comprises:
• a first cable segment comprising at least one sensor;
• and
• a second cable segment connected to the first cable segment and electrically isolated from the first cable segment.

A method for performing a marine geophysical survey, comprising:

• disposing an electromagnetic (EM) field source cable in a body of water, wherein the EM field source cable comprises an EM source that generates an EM field;
• disposing a sensor assembly in the body of water, wherein the sensor assembly comprises a first cable segment having at least one EM sensor and a second cable segment connected to the first cable segment and electrically isolated from the first cable segment;
• and
• measuring the EM field with the at least one EM sensor.