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除非发生意外的扭转,1200万年之后,现在相距400英里左右的旧金山和洛杉矶几乎要靠在一起了。显然有足够的时间来弄清楚详细情况。在这期间,这两个城市以每年大约2英寸的平均移动速度越靠越近。它们各自上骑在一块运动的地壳板块的边缘向前移动,这将是一场艰难曲折的历程。象装有粘滞离合器的汽车,太平洋板块和北美板块不时地相互辗磨,沿它们不平整的边缘,从旧金山半岛的南端切入加利福尼亚湾的圣安德烈斯断层带上犬牙交错的地方互相牵制,然后两边挣脱开,继续向前移动。南加利
Unless an unexpected turnaround occurred, 12 million years later, San Francisco and Los Angeles, almost 400 miles apart, would almost certainly have to rely on them. There is obviously enough time to figure out the details. During this period, the two cities moved closer and closer at an average rate of about 2 inches per year. Each of them riding on the edge of a moving crust plate moves forward, which will be a difficult and tortuous course. Vehicles with viscous clutches, the Pacific Plate and the North American Plate tumbled from time to time along the uneven edges of the San Andreas Fault Zone, cut into the Gulf of California at the southern end of the San Francisco Peninsula, Then break free on both sides, continue to move forward. South Gali