Superficial Blackening and Discoloration of Rocks, Especially in Desert Regions
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 1
- File Size:
- 28 KB
- Publication Date:
- Mar 1, 1905
Abstract
Postscript to the paper read by Prof. William P. Blake at the Lake Superior meeting, September, 1904. POSTSCRIPT.*-Since the publication of my paper upon the blackening of the surface of rocks in desert regions, I have noted that similar views of the origin of superficial discoloration in the case of certain rocks from the Salt Lake basin of Utah have been expressed by Prof. George P. Merrill. In the pamphlet, he described the brown-coated weathered boulders from Tooele county, reaching the conclusion that the discoloration was due to the solution of the manganese and iron compounds 'in the interior of the boulder, while they were in the water, and the gradual bringing of this material to the surface through capillarity and its oxidation when exposed.
Citation
APA: (1905) Superficial Blackening and Discoloration of Rocks, Especially in Desert Regions
MLA: Superficial Blackening and Discoloration of Rocks, Especially in Desert Regions. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1905.