共 9 条
- [1] COGHILL WH, 1923, US BUR MINES TECH PA, V262, P27
- [2] DOLE RB, 1909, US GEOL SURVEY WATER, V234, P89
- [3] FENNEMAN NM, 1914, OHIO GEOL SURVEY B, V19, P77
- [4] GILBERT GK, 1914, US GEOL SURVEY PROF, V86, P91
- [5] GRAHAM JC, 1890, AM J SCI, V2, P40
- [6] Hovey E O, 1900, Science, V11, P912, DOI 10.1126/science.11.284.912
- [7] NORDENSKIOLD E, 1900, NATURE, P278
- [8] Simonds F W, 1900, Science, V11, P510, DOI 10.1126/science.11.274.510
- [9] Simonds FW, 1896, AM GEOL, V17, P29