‡Ref.: Gregory, H.E. (1916), Garnet deposits on the Navajo Reservation, Arizona and Utah, Economic Geology: 11: 223-230.
Williams, H. (1936), Pleiocene volcanics of the Navajo-Hopi country, Geological Society of America Bull.: 47: 111-172.
Page, L.R. (1956), Contributions to the geology of uranium and thorium by the USGS and USAEL for the United Nations International Conference on peaceful uses of atomic energy, Geneva, Switzerand, USGS PP 300: 182-184, 539.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 34, 77, 94, 95.
Witkind, I.J. & R.E. Thaden (1963), Geology and uranium-vanadium deposits in the Monument Valley area, Apache & Navajo Counties, Arizona, USGS Bull. 1103: 54-60, 61.
Gavasci, A.T. & P.F. Kerr (1968), Uranium emplacement at Garnet Ridge, Economic Geology: 63: 859-876.
Watson, K.D. & D.M. Morton (1969), Eclogite inclusions in kimberlite pipes at Garnet Ridge, northeastern AZ, Am.Min.: 54: 267-285.
Peirce, H.W. (1969), Gem materials, in USGS, Arizona Bureau of Mines, and U.S.Bureau of Reclamation, Mineral and Water Resources of Arizona, Arizona Bureau of Mines Bull. 180, USG Bull. 871: 359.
Phillips, K.A. (1987), Arizona industrial minerals, AZ Dept. Mines & Min. Resources Report 4.
Mineralogical Record: 32: 211.
Keirsch, G.A., Mineral resources Navajo-Hopi Indian Reservations, Arizona-Utah, University of Arizona Press: 90-94.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 102, 116, 122, 150, 165, 171, 172, 204, 214, 256, 257, 260, 273, 283, 285, 317, 318, 358, 367, 388, 405, 406.
Wang,L., R.C. Rouse, E.J. Essene, D.R. Peacor, and Y. Zhang (2000) Carmichaelite, a new hydroxyl-bearing titanite from Garnet Ridge, Arizona. American Mineralogist: 85: 792-800.
Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 3.
Garnet Ridge is located in the Navajo volcanic field near Dinnehotso. It is named for the pyrope garnets that occur in the serpentine deposits that intrude host rocks of Jurassic age about 35 miles NE of Kayenta, AZ.
The serpentine deposits are mainly in pipes choked with rock debris derived from a section more than 5,000 feet thick, ranging in age from Precambrian (?) to Cretaceous.
The intrusive serpentine deposits occur as pipe fillings and, rarely, as dikes & sills. The pipes are aligned NE-ward, parallel to the regional strike, but the dikes are parallel to joints that trend NW-ward. Pipe No. 1, at the crest of the ridge, measures 1,000 feet across; pipes 2, 3 & 4, about 2 miles NE, form a cluster 1,500 to 4,000 feet diameter, which trends NW-ward. The pipes are steep-walled & irregularly shaped.
|
|
|
Map Reference: 37°0'46"N , 109°43'29"W
Important Disclaimer: This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Switch between Map and Globe
|
