On November 20, 1980, when the disaster took place, the Diamond Crystal Salt Company operated the Jefferson Island salt mine under the lake, while a Texaco ... br br New Trouble at Separate Cavaren is Salt Dome. Corne Bayou Seismic link @ Expert: Over 200 million cubic feet of gas in area ...br br Bayou Corne Getting Worse.br br Bayou Corne Getting Worse.