Shore current, work of, [237], [238].
Shore lines, elevated, [340];
migration of landward with uplift, [251].
Side delta lakes, [418], [419].
Siderite, [456].
Sieberg, A., cited, [92].
Sieger, R., cited, [259].
Siliceous lava, viscous, [103].
Siliceous sinter, [194].
Sills, [142].