### Petrographic, Geochemical, and Geochronologic Data for Cenozoic Volcanic Rocks of the Tonopah, Divide, and Goldfield Mining Districts, Nevada

By: Edward A. du Bray**David John**Peter G. Vikre**Joseph Colgan**Michael A. Cosca**Leah E. Morgan**Robert J. Fleck**Wayne R. Premo**Christopher S. Holm-Denoma**

                            https://doi.org/10.3133/ds1099

#### Links

-                                                                                                                             Document:                                                                                                                                                                                                                                                  **Report**                                                                                                     (8.81 MB pdf)                                                                                                                                     
- Appendixes:                               - **Appendix 1.**                            (288 kB xlsx)                          Status and Treatment of Samples from the Tonopah, Divide, and Goldfield  Mining Districts
  - **Appendix 2.**                            (240 kB xlsx)                          Petrographic Data for Samples from the Tonopah, Divide, and Goldfield Mining Districts
  - **Appendix 3.**                            (472 kB xlsx)                          Geochemical Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
  - **Appendix 4.**                            (864 kB xlsx)                          40Ar/39Ar Geochronologic Data for Samples from the Tonopah, Divide, and Goldfield Mining Districts Obtained in the U.S. Geological Survey 40Ar/39Ar Laboratory in Denver, Colorado
  - **Appendix 5.**                            (24 kB xlsx)                          Summary of New 40Ar/39Ar Age Determinations for Samples from the Tonopah, Divide, and Goldfield Mining Districts Obtained in the U.S. Geological Survey 40Ar/39Ar Laboratory in Denver, Colorado
  - **Appendix 6.**                            (32 kB xlsx)                          40Ar/39Ar Geochronologic Data for Samples from the Goldfield Mining District Obtained in the New Mexico Geochronological Research Laboratory
  - **Appendix 7.**                            (24 kB xlsx)                          40Ar/39Ar Geochronologic Data for Samples from the Goldfield Mining District Obtained in the U.S. Geological Survey 40Ar/39Ar Laboratory in Menlo Park, California
  - **Appendix 8.**                            (32 kB xlsx)                          Sensitive High Resolution Ion Microprobe (SHRIMP) Zircon U-Pb Geochronologic Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
  - **Appendix 9.**                            (36 kB xlsx)                          Laser Ablation ICP-MS Zircon U-Pb Geochronologic Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
  - **Appendix 10.**                            (28 kB xlsx)                          Results of Point Counts for Samples of the Fraction Tuff and Heller Tuff from the Tonopah and Divide Mining Districts 
- Data Releases:                               - **USGS data release**  - Data to accompany U.S. Geological Survey Data Series 1099: Petrographic, geochemical and geochronologic data for Cenozoic volcanic rocks of the Tonopah, Divide, and Goldfield Mining Districts, Nevada
  - **USGS data release**  - Data to accompany U.S. Geological Survey Data Series 1099: Petrographic, geochemical and geochronologic data for Cenozoic volcanic rocks of the Tonopah, Divide, and Goldfield Mining Districts, Nevada 
- Download citation as:  RIS                         |                         Dublin                            Core

#### Abstract

First posted May 21, 2019

**For additional information, contact:**
Director, Geology, Geophysics and Geochemistry Science CenterU.S. Geological SurveyBox 25046, MS-973Denver, CO 80225-0046

#### Suggested Citation

du Bray, E.A., John, D.A., Vikre, P.G., Colgan, J.P., Cosca, M.A., Morgan, L.E., Fleck, R.J., Premo, W.R., and Holm-Denoma, C.S., 2019, Petrographic, geochemical, and geochronologic data for Cenozoic volcanic rocks of the Tonopah, Divide, and Goldfield mining districts, Nevada: U.S. Geological Survey Data Series 1099, 15 p., https://doi.org/10.3133/ds1099.

ISSN: 2327-638X (online)

#### Study Area

#### Table of Contents

- Acknowledgments
- Introduction
- Analytical Methods
- Data Fields
- References Cited
- Appendix 1. Status and Treatment of Samples from the Tonopah, Divide, and Goldfield Mining Districts
- Appendix 2. Petrographic Data for Samples from the Tonopah, Divide, and Goldfield Mining Districts
- Appendix 3. Geochemical Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
- Appendix 4.  40 Ar/ 39 Ar Geochronologic Data for Samples from the Tonopah, Divide, and Goldfield Mining Districts Obtained in the U.S. Geological Survey  40 Ar/ 39 Ar Laboratory in Denver, Colorado
- Appendix 5. Summary of New  40 Ar/ 39 Ar Age Determinations for Samples from the Tonopah, Divide, and Goldfield Mining Districts Obtained in the U.S. Geological Survey  40 Ar/ 39 Ar Laboratory in Denver, Colorado
- Appendix 6.  40 Ar/ 39 Ar Geochronologic Data for Samples from the Goldfield Mining District Obtained in the New Mexico Geochronological Research Laboratory
- Appendix 7.  40 Ar/ 39 Ar Geochronologic Data for Samples from the Goldfield Mining District Obtained in the U.S. Geological Survey  40 Ar/ 39 Ar Laboratory in Menlo Park, California
- Appendix 8. Sensitive High Resolution Ion Microprobe (SHRIMP) Zircon U-Pb Geochronologic Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
- Appendix 9. Laser Ablation ICP-MS Zircon U-Pb Geochronologic Data for Rock Samples from the Tonopah, Divide, and Goldfield Mining Districts
- Appendix 10. Results of Point Counts for Samples of the Fraction Tuff and Heller Tuff from the Tonopah and Divide Mining Districts

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