Show 40 U 04 Oj Geology Chemistry Classes' Classes Survey On the morning of April 22 the geology and chemistry classes under the direction of Mr Fife If and Mr Dalley DaIley took a trip to Iron Springs f for r the purpose of studying the theor formation formation for for- or- or mation matlon of that section of the country The first stop was at the tho summit of Eight Mile Pass hero Here the reading of the altimeter showed the elevation ele ele- ration to bo be feet A short walk of about yards brought the classes to outcroppings of f the clarion formations some partly metamorphosed ed conglomerate and ana a bluish colored limestone A little farther on was found some somo andesite e the original that had been dug out of a at t tent teat t hole The party then went down to the theIron theiron theiron iron works at D Desert s rt Mound gound Mound and were weri shown about the place lace by of the officials of the Z Here IIer could be seen from the exposed expose surfaces how the had raised the try formations how the how the iron had been precipitated into the fissures caused by the shrinking of the It was noted that next to the ore was was the bl blue limet limestone t i called IIo Homestead Home ne stead Limestone and on top of that an orange color colored d sandstone called Pinto Sandstone Tho The Homestead being called after an old homestead claim at Iron Mountain and nd the Pinto San Sandstone stone aft after r the th the to town wn o f tl Pinto wh where re there are are ou roP item also Iso was seen seen examples of f faulting and exposures s of of f the for for- It was learned that the ore ore was war about 50 60 te and ni tite that it was was was' from 50 to 55 per percent percent per percent cent cent pur pure and that that- ti oiras s shipping about 1000 to tons s daily In the afternoon the party Journey Journeyed o ed to Dry Creek Here n a f reading showed the elevation to be fe feet t above sea sen level A little below the creek was seen on an example of sand of-sand- sand sandstone stone merging into conglomerate About About A- A bout two miles mites farther up DP the canyon was found examples of ot sl sides es sides are glazed surfaces caused by rocks sliding past each other A little tittle farther was Vas found rem of an an ancient forest now in the state of At this point the party's attention was called called called call call- ed to the division between the upper and lower l I Mesozoic periods The next trip these classes will take will be to the Grand Canyon of the Colorado Such trips as these thele is the ideal way to study geology |