New Mexico Geological Society · Socorro, NM

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Southwest Passage: A trip through the Phanerozoic

2000
282 pages

Timothy F. Lawton, Nancy J. McMillan and Virginia T. McLemore, eds, 2000, 282 pages. https://doi.org/10.56577/FFC-51

$5.00

Research papers are free to download.
Roadlogs, mini-papers and some other sections are available in print.


SKU: FFC-51

About this guidebook

Welcome to the Southwest Passage, the arid steppes and mountains of southwestern New Mexico’s Basin-and-Range Province. Dry and windy, high and lonesome: this region’s descriptors do not elicit comfort, yet the area has been a key crossroads as long as we have knowledge of human transit. The first day route traverses the Pyramid Mountains near Lordsburg to visit the Lordsburg mining district, ash-flow tuffs in the range, and hydrothermal sites associated with the western range-bounding fault. The second day features the Little Hatchet Mountains, with an overview of the Eureka mining district in the northern part of the range, an assessment of recent discoveries and advances in the Mesozoic stratigraphy and igneous history, and a stop at a skarn deposit formed at an intrusive contact of Tertiary granite and Paleozoic carbonate rocks. The third day route visists Cambrian alkalic basement exposures and low angle faults of controversial nature in the Florida Mountains. There is also a supplemental roadlog from Lordsburg to Redrock, Ash Creek and Jack Creek in the northern Burro Mountains to examine Proterozoic rocks.

Best Guidebook Award, 2001 — Geoscience Information Society

Contents & downloads

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 PDF ↓(1.00 MB PDF)

Roadlogs

(each includes listed mini-papers)

First-day road log, from Lordsburg to Ruth Mine (Lordsburg district) to Twelve Mile Hill to Rock House Canyon (Pyramid Mountains) to Burgett’s Greenhouses (Animas Valley) to Steins (Peloncillo Mountains)

V. T. McLemore, W. C. McIntosh, and J. W. Hawley, pp. 1-16.

Mini-papers

The Lordsburg mining district, Hidalgo County, New Mexico

J. L. White, pp. 3-4.

PDF not listed

40Ar/39Ar geochronology of igneous rocks in the Lordsburg mining district, Northern Pyramid Mountains, Hidalgo County, New Mexico

Virginia T. McLemore, Lisa Peters, and Matt T. Heizler, pp. 6-8.

PDF not listed

Second-day road log, from Lordsburg to Deming via Little Hatchet Mountains and Victorio Mountains

T. F. Lawton, N. J. McMillan, V. T. McLemore, and J. W. Hawley, pp. 17-30.

Mini-papers

The Eureka mining district, Grant County, New Mexico

Virginia T. McLemore, pp. 21-22.

PDF not listed

Dinosaur skin impressions from the Upper Cretaceous Ringbone Formation, Little Hatchet Mountains, New Mexico

Spencer G. Lucas, pp. 26-27.

PDF not listed

Third-day road log, from Deming to Victorio Canyon and the southern Florida Mountains

Nancy J. McMillan, Virginia T. McLemore, Jeffrey M. Amato, John W. Hawley, and Katherine A. Giles, pp. 31-44.

Mini-papers

Rockhound State Park and Spring Canyon Recreation Area

Virginia T. McLemore, Nelia W. Dunbar, and W. C. McIntosh, pp. 33-34.

PDF not listed

Florida Mountains mining district, Luna County, New Mexico

Virginia T. McLemore, pp. 35.

PDF not listed

Cambrian tectonics of New Mexico and Colorado

Nancy J. McMillan, Virginia T. McLemore, and Sheryl D. Erwin, pp. 37-39.

PDF not listed

The Tres Hermanas mining district, Luna County, New Mexico

Virginia T. McLemore, pp. 40-41.

PDF not listed

Pancho Villa State Park

Virginia T. McLemore, pp. 43-44.

PDF not listed

Supplemental road log 1, from Lordsburg to Redrock to Ash Creek in the northern Burro Mountains, New Mexico

Virginia T. McLemore, O. Tapani Ramo, and Paula J. Kosunen, pp. 45-50.

Supplemental road log 2: From Lordsburg to Duncan, Arizona, and Steeple Rock district, New Mexico and Arizona

Virginia T. McLemore, pp. 51-65.

Mini-papers

Milling and smelting at the Steeple Rock mining district

Ibrahim H. Gundiler, pp. 60-61.

PDF not listed

Roadlog References

Download PDF ↓(2.31 MB PDF)

Papers

Implications of recent geophysical studies of the Big Hatchet Mountains area, southwestern New Mexico

David L. Shearer and Kate C. Miller, pp. 71-74.

Aptian-Albian extensional faulting and subsequent Laramide inversion, central Peloncillo Mountains, southwestern NM

German Bayona and Timothy F. Lawton, pp. 85-94.

Inversion of Late Jurassic-Early Cretaceous extensional faults of the Bisbee Basin, southeastern Arizona and southwestern New Mexico

Timothy F. Lawton, pp. 95-102.

Geology and geochemistry of Proterozoic granitic and mafic rocks in the Redrock area, northern Burro Mountains, Grant County, New Mexico-A progress report

Virginia T. McLemore, O. Tapani Ramo, Paula J. Kosunen, Matt Heizler, Ilmari Haapala, and Christopher McKee, pp. 117-126.

Volcanic stratigraphy, geochemistry, and structure of the Steeple Rock district, Grant County, New Mexico, and Greenlee County, Arizona

Virginia T. McLemore, William C. McIntosh, and Robert Appelt, pp. 127-140.

Magmatic history of the Little Hatchet Mountains, Hidalgo and Grant counties, southwestern New Mexico

Ryan Channell, Nancy J. McMillan, Timothy F. Lawton, Matt Heizler, Richard P. Esser, and Virginia T. McLemore, pp. 141-148.

Volcanology, geochemistry and structural geology of the Upper Cretaceous Hidalgo Formation, southwestern New Mexico

John R. Young, Nancy J. McMillan, Timothy F. Lawton, and Richard P. Esser, pp. 149-156.

Stratigraphy of the Bisbee Group (Jurassic-Cretaceous), Little Hatchet Mountains, New Mexico

Spencer G. Lucas and Timothy F. Lawton, pp. 175-194.

Biostratigraphic significance of late Neogene vertebrate fossils from the Gila Group, Pearson Mesa, southwestern New mexico and southeastern Arizona

Gary S. Morgan and Spencer G. Lucas, pp. 211-220.

Some notes on the hydrogeology and ground-water quality of the Animas Basin system, southwestern New Mexico

Barry J. Hibbs, Monica M. Lee, John W. Hawley, and John F. Kennedy, pp. 227-234.

The hydrogeologic framework of basin-fill aquifers and associated ground-water-flow systems in southwestern New Mexico-An overview

John F. Kennedy, John W. Hawley, and Molly M. Johnson, pp. 235-244.

Geology and mineral occurrences of the mineral districts of Hidalgo County, southern New Mexico

Virginia T. McLemore and Wolf E. Elston, pp. 253-262.

Geology and mineral deposits of the Victorio mining district, Luna County, New Mexico-Preliminary observations

Virginia T. McLemore, Nelia Dunbar, Matt Heizler, and Kelly Donahue, pp. 267-278.

Back Matter

(usually includes a stratigraphic column and/or correlation chart)

Download PDF ↓(658 KB PDF)

Recommended citation

  1. Lawton, T. F.; McMillan, N. J.; McLemore, V. T.; [eds.], 2000, Southwest Passage: A trip through the Phanerozoic, New Mexico Geological Society, Guidebook, 51st Annual Field Conference, 282 pp. ISBN: 9781585460861 https://doi.org/10.56577/FFC-51