 | Frederick Gardner Clapp - 1907 - 948 Seiten
...Mountains, Montana. US Geol. Surv., Bull. no. 237, 208. pp., 7 pis. and 8 figs., 1905. 5. The pt'trographic province of central Montana. Am. Jour. Sci., 4th ser., vol. 20, pp. 35-49, 1905. Defines the province as shown by various evidcn<vsnf consanguinity, gives its general law, and describes... | |
 | 1907 - 952 Seiten
...Highwood Mountains, Montana. DS Geol. Surv., Bull. no. 237, 208. pp., 7 pis. and 8 figs., 1905. 5. The petrographic province of central Montana. Am. Jour. Sci.. 4th ser., vol. 20, pp. 35-4'J, 1905. Defines the province as shown by various evidences of consanguinity, gives its general... | |
 | Thomas Nelson Dale - 1908 - 458 Seiten
...Missouri River. PARKER, EW, Mineral Resources US for 1904: US Geol. Survey, pp. 512-515. 1!K)5. Includes a discussion of the various Montana coal fields, their...Highwood Mountains) laccoliths, and dike near the High woods on Williams Creek. ROWE, JP, Montana gypsum deposits: Am. Geologist, vol. 35, pp. 104-1... | |
| |
Petrographic province of central Montana: Am. Jour. Sci., 4th ser., vol. 20, pp. 