New Mexico Geological Society
Fall Field Conference Guidebook - 29
Land of Cochise (Southeastern Arizona)


J. F. Callender, Jan C. Wilt, R. E. Clemons and H. L. James, eds, 1978, 348 pages.

We finally made it! If my memory serves me correctly, the idea for this field conference was born out of a casual conversation with Wes Peirce of the Arizona Bureau of Geology in the fall of 1969 at the Sierra de Samalayuca stop in Mexico. This is our third cooperative arrangement with the Arizona Geological Society, having shared excellent trips to Black Mesa Basin (1958, Guidebook 9) and the Mogollon Rim Region (1962, Guidebook 13). The first day road log is from Lordsburg to Douglas via Granite Gap and San Bernadino Valley with an extension to the southern end of the Mule Mountains. This route in southwestern New Mexico and southeastern Arizona traverses basins containing Pleistocene playas and Plio-Pleistocene valley fill and volcanics, and intervening ranges of pre-Pliocene rocks.The second day road log is from Douglas to Tucson via Bisbee, Tombstone, Charleston, Fort Huachuca and Sonoita. The route traverses Paleozoic and Mesozoic strata, copper and silver ore deposits, complicated Mesozoic and Cenozoic structural deformation and accompanying plutonism and volcanism, all of which contribute significantly to the geologic history of the Basin and Range province in southeastern Arizona. The third day road log is from Tucson to Colossal Cave and Saguaro National Monument. The focus of this trip is to examine the physical and geometric relations among rocks and structure in the outer margin of a so called "metamorphic core complex". Specifically we will observe cataclastically deformed gneisses and folded mylonitic schists in the augen gneisses core, and shattered unfoliated Precambrian granite and Paleozoic sedimentary rocks resting atop the decollement zone.

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Table of Contents:

Note —Downloads of the papers below are free. Road logs, mini-papers, and some other sections of recent guidebooks are only available in print.

Front Matter: (includes Dedication, President's Message, & Conference Organizer's Message)

Download (1.42 MB PDF)

Roadlogs: (each includes listed mini-papers)

First day road log from Lordsburg to Douglas via Granite Gap and San Bernadino Valley with an extension to the southern end of the Mule Mountains
— Stanley B. Keith, J. C. Wilt, Daniel Lunch, E. G. Deal, R. E. Clemons, and J. D. Forrester, pp. 1-30.
Second day: Road log from Douglas to Tuscon via Bisbee, Tombstone, Charleston, Fort Huachuca and Sonoita
— Stanley B. Keith and Jan C. Wilt, pp. 31-76.
Third day: Road log from Tuscon to Colossal Cave and Saguaro National Monument
— George Davis, pp. 77-87.
Supplemental road log No. 1: Tuscon to Benson via Nogales, Patagonia, Sonoita and Whetstone Junction
— Stanley B. Keith, Norman E. Lehman, James D. Sell, and Jan C. Wilt, pp. 88-104.
Supplemental road log No. 2: Santa Catalina Mountains via Catalina Highway
— Douglas W. Shakel, pp. 105-111.
Supplemental road log no. 3, Tucson to Lordsburg via Interstate 10
— Stanley B. Keith and J. C. Wilt, pp. 112-124.
Supplemental road log No. 4: Willcox to Bowie via Dos Cabezas and Apache Pass with historical notes on Dos Cabezas, Apache Pass, Cochise, the Butterfield Overland Mail and Fort Bowie
— Russell E. Clemons and James H. L., pp. 125-138.


Mesozoic depositional history of southeastern Arizona (1.89 MB PDF)
— Philip T. Hayes and Harold Drewes, pp. 201-207. [ABSTRACT]
Cenozoic volcanic geology of the Basin and Range province in Hidalgo County, southwestern New Mexico (2.34 MB PDF)
— Edmond G. Deal, W. E. Elston, E. E. Erb, S. L. Peterson, D. E. Reiter, P. E. Damon, and M. Shafiqullah, pp. 219-229. [ABSTRACT]
Mid-Tertiary magamtism in southeastern Arizona (3.07 MB PDF)
— M. Shafiqullah, P. E. Damon, D. J. Lynch, P. H. Kuck, and W. A. Rehrig, pp. 231-241. [ABSTRACT]
Late Cenozoic basins of Arizona (2.49 MB PDF)
— Robert B. Scarborough and H. Wesley Peirce, pp. 253-259. [ABSTRACT]
Geology of the Willcox playa, Cochise County, Arizona (2.07 MB PDF)
— Schreiber, Joseph F., Jr., pp. 277-282. [ABSTRACT]
Laramide thrust faulting, Klondike Hills, southwestern New Mexico (2.34 MB PDF)
— LeRoy L. Corbitt, F. L. Nials, and R. J. Varnell, pp. 297-300. [ABSTRACT]
The Pima mining district, Arizona--a geochronologic update (2.30 MB PDF)
— M. Shafiqullah and J. D. Langlois, pp. 321-327. [ABSTRACT]
Oil and gas exploration wells in the Pedregosa Basin (4.35 MB PDF)
— Thompson, Sam, III, Tovar R., J. C., and J. N. Conley, pp. 331-342. [ABSTRACT]
Scenes from the past--V (2.99 MB PDF)
— William L. Hiss, pp. 353-356. [ABSTRACT]
Eusebio Francisco Kino: El Cariblanco (1.44 MB PDF)
— Charles W. Polzer, pp. 361-364. [ABSTRACT]

Recommended Guidebook Citation:

  1. Callender, J. F.; Wilt, J.; Clemons, R. E.; James, H. L.; [eds.], 1978, Land of Cochise (Southeastern Arizona), New Mexico Geological Society, Guidebook, 29th Annual Field Conference, 348 pp.