| 1 | It is barely ten since systematic deep ocean bathymetry revealed the structure of rifts , fractures and trenches associated with sea floor spreading. | |
| 2 | 城市的名字来源于小石城往西略偏南50多英里处沃希塔山脉一道狭谷中汩汩涌出的硫磺温泉。第一个发现这眼温泉的欧洲人是埃尔南多。德索托。 The hot sulfur springs, for which the city is named, bubble up from below ground in a narrow gap in the Ouachita Mountains a little more than fifty miles west and slightly south of Little Rock. |