DOCSLIB.ORG

Mineral Exploration Investigation in the Northern Sierra Madre Occidental, Mexico

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mineral Exploration Investigation in the Northern Sierra Madre Occidental, Mexico University of Texas at El Paso ScholarWorks@UTEP Open Access Theses & Dissertations 2019-01-01 Mineral Exploration Investigation In The Northern Sierra Madre Occidental, Mexico Labdan Nijr Alqahtani University of Texas at El Paso Follow this and additional works at: https://digitalcommons.utep.edu/open_etd Part of the Geology Commons, and the Remote Sensing Commons Recommended Citation Alqahtani, Labdan Nijr, "Mineral Exploration Investigation In The Northern Sierra Madre Occidental, Mexico" (2019). Open Access Theses & Dissertations. 2824. https://digitalcommons.utep.edu/open_etd/2824 This is brought to you for free and open access by ScholarWorks@UTEP. It has been accepted for inclusion in Open Access Theses & Dissertations by an authorized administrator of ScholarWorks@UTEP. For more information, please contact [email protected]. MINERAL EXPLORATION INVESTIGATION IN THE NORTHERN SIERRA MADRE OCCIDENTAL, MEXICO LABDAN ALQAHTANI Doctoral Program in Geological Science APPROVED: Philip Goodell, Ph.D., Chair Jose Hurtado, Ph.D. AlDouri Raed, Ph.D. Jason Ricketts, Ph.D. Benjamin Brunner, Ph.D. Stephen L. Crites, Jr., Ph.D. Dean of the Graduate School Copyright © by Labdan Alqahtani 2019 MINERAL EXPLORATION INVESTIGATION IN THE NORTHERN SIERRA MADRE OCCIDENTAL, MEXICO by LABDAN NIJR ALQAHTANI, MS DISSERTATION Presented to the Faculty of the Graduate School of The University of Texas at El Paso in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY Department of Geological Sciences THE UNIVERSITY OF TEXAS AT EL PASO December 2019 ACKNOWLEDGEMENTS First, I would like to thank the member of my dissertation committee: Dr. Philip C. Goodell, Dr. Jose Hurtado, Dr. Jason Ricketts, Dr. Raed Aldouri, and Dr. Benjamin Brunner. Their helpful comments, suggestion and attitude have made this final product a much better research study. I especially thank Dr. Goodell for his teaching, valid assessment of the scientific material presented in this work, and constructive comments. Dr. Goodell devoted a great deal of his personal time in order to help me focus entirely on my work in the last four years. I want to thank the government of Saudi Arabia via the King Abdullah Scholarship Program for supporting me during the four years, I needed to complete this academic program and for financing this research project. Lastly and most importantly, I would like to thank my parents, my wife, my brothers, and my sisters for their endless support and constant encouragement, has had great importance in the production of this dissertation. iv TABLE OF CONTENTS ACKNOWLEDGEMENTS .......................................................................................................... IV LIST OF TABLES ........................................................................................................................ IX LIST OF FIGURES ........................................................................................................................ X CHAPTER 1: EXPLORATION POTENTIAL IN THE SIERRA MADRE OCCIDENTAL, CHIHUAHUA, MEXICO RESULTING FROM APPLICATION OF REMOTE SENSING AND GIS TO GOLD AND SILVER HOSTED STRUCTURES ..........................................1 Abstract ...................................................................................................................................1 1. Introduction .........................................................................................................................2 2. Objectives ...........................................................................................................................2 3. Study area............................................................................................................................3 4. Background .........................................................................................................................3 4.1. Geology .................................................................................................................4 4.2. Mineralization .........................................................................................................4 5. Data .....................................................................................................................................5 5.1. Landsat 8 .................................................................................................................5 5.2. SRTM 1 Arc-Second Global ...................................................................................5 5.3. Mineral Resources Data System (MRDS) ..............................................................6 5.4. The Major Gold/Silver Systems (Mines) in the study area.....................................6 5.4.1. Dolores ........................................................................................................6 5.4.2. Mulatos .......................................................................................................6 5.4.3. Pinos Altos ..................................................................................................6 5.4.4. Ocampo .......................................................................................................7 5.4.5. Los Jarros ....................................................................................................7 5.4.6. Palmarejo ....................................................................................................7 5.4.7. Cerro Colorado............................................................................................7 5.4.8. Satevo ..........................................................................................................7 5.4.9. El Sauzal .....................................................................................................8 5.4.10. Batopilas ................................................................................................8 6. Processing and method .......................................................................................................8 v 7. Results .................................................................................................................................9 7.1. Visual Extraction of Lineaments ............................................................................9 7.1.1. First Order Lineaments (FOL) ...............................................................10 7.1.2. Second Order Lineaments (SOL)...........................................................10 7.1.3. Third Order Lineaments (TOL) .............................................................10 7.2. Automatic Extraction of Lineaments ....................................................................11 7.3. Circles and Arcs ....................................................................................................11 7.3.1. Known Calderas ........................................................................................11 7.3.2. New Potential Calderas .............................................................................12 7.4. Result of Mineral Resources Data System (MRDS).............................................13 8. Discussion .........................................................................................................................13 8.1. Lineaments ............................................................................................................13 8.2. Circles ...................................................................................................................14 8.3. Tangents ................................................................................................................15 8.4 Mineral Occurrences ..............................................................................................15 9. Conclusion ........................................................................................................................16 References .............................................................................................................................17 CHAPTER 2: TARGETING ALUNITE IN EPITHERMAL AND COPPER PORPHYRY DEPOSITS USING ASTER IMAGERY IN THE NORTHERN SIERRA MADRE OCCIDENTAL, SONORA, MEXICO .................................................................................60 Abstract .................................................................................................................................60 1. Introduction .......................................................................................................................60 2. Objective ...........................................................................................................................61 3. Background .......................................................................................................................61 3.1. Location ................................................................................................................61 3.2. Geology of the Sierra Madre Occidenta ...............................................................61 3.3. Porphyry Copper and Epithermal Deposits ..........................................................62 3.4. Previous Satellite Remote-Sensing Studies ..........................................................63 3.5. Argillic Logical Operators ....................................................................................64 4. Data ...................................................................................................................................67
Load more

Recommended publications
  • The Bearhead Rhyolite, Jemez Volcanic Field, NM
    Journal of Volcanology and Geothermal Research 107 32001) 241±264 www.elsevier.com/locate/jvolgeores Effusive eruptions from a large silicic magma chamber: the Bearhead Rhyolite, Jemez volcanic ®eld, NM Leigh Justet*, Terry L. Spell Department of Geosciences, University of Nevada, Las Vegas, NV, 89154-4010, USA Received 23 February 2000; accepted 6 November 2000 Abstract Large continental silicic magma systems commonly produce voluminous ignimbrites and associated caldera collapse events. Less conspicuous and relatively poorly documented are cases in which silicic magma chambers of similar size to those associated with caldera-forming events produce dominantly effusive eruptions of small-volume rhyolite domes and ¯ows. The Bearhead Rhyolite and associated Peralta Tuff Member in the Jemez volcanic ®eld, New Mexico, represent small-volume eruptions from a large silicic magma system in which no caldera-forming event occurred, and thus may have implications for the genesis and eruption of large volumes of silicic magma and the long-term evolution of continental silicic magma systems. 40Ar/39Ar dating reveals that most units mapped as Bearhead Rhyolite and Peralta Tuff 3the Main Group) were erupted during an ,540 ka interval between 7.06 and 6.52 Ma. These rocks de®ne a chemically coherent group of high-silica rhyolites that can be related by simple fractional crystallization models. Preceding the Main Group, minor amounts of unrelated trachydacite and low silica rhyolite were erupted at ,11±9 and ,8 Ma, respectively, whereas subsequent to the Main Group minor amounts of unrelated rhyolites were erupted at ,6.1 and ,1.5 Ma. The chemical coherency, apparent fractional crystallization-derived geochemical trends, large areal distribution of rhyolite domes 3,200 km2), and presence of a major hydrothermal system support the hypothesis that Main Group magmas were derived from a single, large, shallow magma chamber.
    [Show full text]
  • Modelling the Petrogenesis of High Rb/Sr Silicic Magmas
    ( "heroical Geology, 92 ( 199 [ ) 107-114 107 Elsevier Science Publishers B.V., Amsterdam Modelling the petrogenesis of high Rb/Sr silicic magmas A.N. Halliday a, j.p. Davidson ~"", W. Hildreth b and P. Holden ~"~ ~' D~7~arll~tepll qt Geo/o~ica/ Sciences, The University q/,llichi~an, Inn. lrhor, UI 4S I ()~- I 0~ 3, (.S'I " ('S. Geological SI,'rVE')', MSglO, 345 )diddlefiehl Road, Menlo t'ark. (;,1 94025. ( ,S\-I " D~7~artment o/Earlh and Space Sciences, ~ )zivetwitr q/('alih;rnta. Los ..t n£,eh'~. (' I 90024, ~ ',S'. I (Received February 22, 1990: revised and accepted November 7, 1991)) ABSTRACT Halliday, A.N., Davidson, J.P., Hildreth, W. and Holden, P., 1991. Modelling the petrogenesis o1 high Rh/Sr silicic mag- mas. In: A. Peccerillo (Guest-Editor), Geochemistry of Granitoid Rocks. Chem. Geol., 92: 107-114. Rhyolites can be highly evolved with Sr contents as low as 0.1 ppm and Rb/Sr > 2,0(t0. In contrast, granite batholiths are commonly comprised of rocks with Rb/Sr < l 0 and only rarely > 100. Mass-balance modelling of source compositions, differentiation and contamination using the trace-element geochemistry of granites are therefi)re commonly in error be- cause of the failure to account for evolved differentiates that may have been erupted from the system. Rhyolitic magmas with very low Sr concentrations ( ~< 1 ppm ) cannot be explained by any partial melting models involving typical crustal source compositions. The only plausible mechanism for the production of such rhyolites is Rayleigh fiactional crystalli- zalion involving substantial volumes of cumulates.
    [Show full text]
  • Constraining Magma Chamber and Recharge Conditions from Surface Uplift at Three Sisters Volcanic Center in the Oregon Cascades
    CONSTRAINING MAGMA CHAMBER AND RECHARGE CONDITIONS FROM SURFACE UPLIFT AT THREE SISTERS VOLCANIC CENTER IN THE OREGON CASCADES by CATHERINE O’HARA A THESIS Presented to the Department of Earth Sciences and the Robert D. Clark Honors College in partial fulfillment of the requirements for the degree of Bachelor of Science MAY 2021 An Abstract of the Thesis of Catherine O’Hara for the degree of Bachelor of Arts Science in the Department of Earth Sciences to be taken June 2021 Title: Constraining Magma Chamber and Recharge Conditions from Surface Uplift at Three Sisters Volcanic Center in the Oregon Cascades Approved: Meredith Townsend, PhD Primary Thesis Advisor An episode of ongoing uplift in the Three Sisters volcanic center in the Oregon Cascades was discovered in 2001 from InSAR observations. The center of uplift is ~6 km west of the summit of South Sister, and the spatial pattern is consistent with a spheroidal source of inflation. The combination of InSAR and continuous GPS data since 2001 indicate a gradual onset of uplift beginning around 1996, reaching a peak of ~3-4 cm/yr between ~1998- 2004, and declining since then to a current rate of ~0.5 cm/yr (Riddick and Schmidt, 2011) . This pattern of initially rapid uplift followed by an exponential decay has been observed at several other volcanoes, such as Yellowstone, Long Valley, and Laguna del Maule (Le Mével et al., 2015), but it is unclear whether the pattern of uplift is due to magma recharge that varies with time and/or viscoelastic effects. I present a model for surface deformation due to a spherical magma chamber in a viscoelastic crust subject to recharge, cooling, crystallization, and volatile exsolution, and combine this model with InSAR and GPS data to test the recharge rates and magma chamber conditions that can best explain the variation in the uplift rates at Three Sisters.
    [Show full text]
  • Environmental Responsibility
    Environmental Responsibility At Alamos, we are committed to preserving the long-term health and viability of the natural environments affected by our projects and operations. We continually invest in new initiatives to reduce our environmental footprint. Our objective is to minimize the environmental impacts of our operations, and to offset any impacts that cannot be fully mitigated or rehabilitated. Throughout our history, we have continually strived to meet or exceed international environmental standards related to our activities. 54 2018 Sustainability Report Saplings at the Mulatos mine nursery, Mexico Alamos Gold Inc. 55 Cerro Pelon pit at the Mulatos mine, Mexico In 2018, our mines operated in compliance with In addition to the minor spills above, both Island applicable environmental regulations, with the Gold and Young-Davidson received environmental exception of minor spills and an operating non- fines of $10,000 and $20,250 respectively during conformance. At Island Gold, three oil spills the reporting period. On 3 May 2018, Island Gold (a total of 1,083 litres spilled) were contained, started effluent discharge but failed to meet the cleaned and reported to authorities. At Young- relevant toxicity parameters. At Young-Davidson, Davidson, two reportable spills of transmission oil an environmental penalty was received relating (150 litres) and propane (20 litres) also occurred. to a tailings discharge that occurred in December Both were reported to the relevant authorities and 2017. Neither incident resulted in any significant First Nations, and cleaned up immediately with no impact on the downstream natural environment, lasting impacts. and both incidents were quickly remediated by each site.
    [Show full text]
  • The Tectonic Evolution of the Madrean Archipelago and Its Impact on the Geoecology of the Sky Islands
    The Tectonic Evolution of the Madrean Archipelago and Its Impact on the Geoecology of the Sky Islands David Coblentz Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM Abstract—While the unique geographic location of the Sky Islands is well recognized as a primary factor for the elevated biodiversity of the region, its unique tectonic history is often overlooked. The mixing of tectonic environments is an important supplement to the mixing of flora and faunal regimes in contributing to the biodiversity of the Madrean Archipelago. The Sky Islands region is located near the actively deforming plate margin of the Western United States that has seen active and diverse tectonics spanning more than 300 million years, many aspects of which are preserved in the present-day geology. This tectonic history has played a fundamental role in the development and nature of the topography, bedrock geology, and soil distribution through the region that in turn are important factors for understanding the biodiversity. Consideration of the geologic and tectonic history of the Sky Islands also provides important insights into the “deep time” factors contributing to present-day biodiversity that fall outside the normal realm of human perception. in the North American Cordillera between the Sierra Madre Introduction Occidental and the Colorado Plateau – Southern Rocky The “Sky Island” region of the Madrean Archipelago (lo- Mountains (figure 1). This part of the Cordillera has been cre- cated between the northern Sierra Madre Occidental in Mexico ated by the interactions between the Pacific, North American, and the Colorado Plateau/Rocky Mountains in the Southwest- Farallon (now entirely subducted under North America) and ern United States) is an area of exceptional biodiversity and has Juan de Fuca plates and is rich in geology features, including become an important study area for geoecology, biology, and major plateaus (The Colorado Plateau), large elevated areas conservation management.
    [Show full text]
  • Sequences of Pleistocene Marine Terraces in the Santa Rosalia Area, Baja California Sur, Mexico
    275 SEQUENCES OF PLEISTOCENE MARINE TERRACES IN THE SANTA ROSALIA AREA, BAJA CALIFORNlA SUR, MEXICO Luc ORTLIEB Instituto de Geologfa, Univ. Nal. Aut6n. de Mexico & O.R.S.T.O.M. Apdo. Postal 1159 Hermosillo, Sonora, Mexico. ABSTRACT The coastal area near Santa Rosalla and on the eastern flank of the La Re­ forma volcanic complex, in eastcentral Baja California, presents an exceptional sequence of Pleistocene marine terraces. These remnants of past high stands of sea-level have been studied along 11 traverses roughly perpendicular to the coast­ line. The shorelines interpreted to correspond to distinct interglacial sea-level are regularly distributed at elevations varying from about + 9 m to + 190 m above mean sea level. A number of nine main shorelines were identified. Since no radio­ metric dates are yet available, a tentative chronostratigraphy of these features has been inferred from the V28-238 deep-sea core paleoclimatic curve; according to these correlations nine "interglacial" isotopic stages would be represented: one in early Late Pleistocene, six in Middle Pleistocene, and two in late Early Pleistocene. The Santa Rosalla Formation previously attributed to the base of the Pleistocene is thought to be a late Early Pleistocene (about 1 M. y.) inter­ glacial marine deposit. The vertical motions in the whole coastal area have prob­ ably been constant during the Quaternary although uplift rates are interpreted to have changed from a near value of 240 mrn/ka to approximately 130 mm/ka , at about 350 000 years B.P. RESUMEN La costa cerca de Santa Rosalfa y de la ladera oriental del complejo volca­ nico de La Reforma, en el noreste de Baja California Sur, presenta una secuencia excepcional de terrazas marinas pleistocenicas.
    [Show full text]
  • Stories of the Sky Islands: Exhibit Development Resource Guide for Biology and Geology at Chiricahua National Monument and Coronado National Memorial
    Stories of the Sky Islands: Exhibit Development Resource Guide for Biology and Geology at Chiricahua National Monument and Coronado National Memorial Prepared for the National Park Service under terms of Cooperative Ecosystems Studies Unit Agreement H1200-05-0003 Task Agreement J8680090020 Prepared by Adam M. Hudson,1 J. Jesse Minor,2,3 Erin E. Posthumus4 In cooperation with the Arizona State Museum The University of Arizona Tucson, AZ Beth Grindell, Principal Investigator May 17, 2013 1: Department of Geosciences, University of Arizona ([email protected]) 2: School of Geography and Development, University of Arizona ([email protected]) 3: Laboratory of Tree-Ring Research, University of Arizona 4: School of Natural Resources and the Environment, University of Arizona ([email protected]) Table of Contents Introduction ........................................................................................................................3 Beth Grindell, Ph.D. Ch. 1: Current research and information for exhibit development on the geology of Chiricahua National Monument and Coronado National Memorial, Southeast Arizona, USA..................................................................................................................................... 5 Adam M. Hudson, M.S. Section 1: Geologic Time and the Geologic Time Scale ..................................................5 Section 2: Plate Tectonic Evolution and Geologic History of Southeast Arizona .........11 Section 3: Park-specific Geologic History – Chiricahua
    [Show full text]
  • United States Department of the Interior Fish and Wildlife Service Arizona Ecological Services Office 9828 N
    United States Department of the Interior Fish and Wildlife Service Arizona Ecological Services Office 9828 N. 31st Avenue Ste C3 Phoenix, AZ 85051 Telephone: (602) 242-0210 Fax: (602) 242-2513 AESO/SE 22410-2011-F-0210 September 27, 2016 Ms. Laura Jo West, Forest Supervisor Coconino National Forest 1824 South Thompson Street Flagstaff, Arizona 8600 I RE: Rock Pits Project, Coconino and Kaibab National Forests Dear Ms. West: Thank you for your request for formal consultation with the U.S. Fish and Wildlife Service (FWS) pursuant to section 7 of the Endangered Species Act of 1973 (16 U.S.C. 1531-1544), as amended (Act). Your request and biological assessment (BA) were dated March 29, 2016, and received by us on April 4, 2016. This consultation concerns the potential effects of activities associated with the development and operation of rock pits on the Coconino and Kaibab National Forests in Coconino and Yavapai Counties, Arizona. The Forest Service has determined that the proposed action may affect, and is likely to adversely affect, the threatened Mexican spotted owl (Strix occidenta/is lucida) and its critical habitat. You have also requested our concurrence that the proposed action may affect, but is not likely to adversely affect the endangered California condor (Gymnogyps ca/ifornianus) outside of the lOj experimental nonessential population area, and "is not likely to jeopardize" the condor within the 1Oj experimental nonessential population area. We concur with your determinations. The basis for our concurrences is found in Appendix A. You also requested that we provide our technical assistance with respect to compliance with the Bald and Golden Eagle Protection Act (16 U.S.C.
    [Show full text]
  • Preparing for Growth: Capitalizing on a Period of Progress and Stability
    Preparing for growth: Capitalizing on a period of progress and stability www.pwc.com/ca/canadianmine A year of stability Contents 2 A year of stability 3 Highlights and analysis 7 Agnico Eagle: Perfecting a successful 60 year-old strategy 9 Osisko Gold Royalties: Disrupting the cycle An interview with John Matheson, Partner, PwC Canada 11 Savvy investments in stable times Call it breathing room. Over the last year, into Eastern and Central Europe with its Canada’s major mining companies have Belt and Road Initiative (formerly One Belt entered a period of relative stability after and One Road) is increasing demand for weathering a frenzied period of boom, industrial products. bust and recovery. Globally, the geopolitical situation will About this report The sector has been paying down debt, likely remain volatile through 2018 and Preparing for growth is one of improving balance sheets and judiciously beyond. While bullion largely shrugged four publications in our annual investing in capital projects, on trend with off 2017’s world events, international Canadian mine series looking at the wider global mining industry in 2017. uncertainties could yet become an the realities and priorities of public Maintaining flexibility and increasing upward force on gold prices. The success mining companies headquartered efficiency are key goals for many executive of stock markets around the globe last in Canada. It offers a summary of financial analysis of the top 25 teams as they try to position themselves to year dampened general investor interest listings by market capitalization on capitalize on the next stages of the cycle. in gold equities, with the precious metal the TSX and complements our Junior Some companies have sought to enhance traditionally serving as a hedge against mine 2017 report, which analyzes the operations through acquisitions, but on market downturns, said David Smith, top 100 listings on the TSX Venture the whole, 2017 saw few eye-popping Senior Vice President of Finance and Chief Exchange (TSX-V).
    [Show full text]
  • Corporate Presentation March 2021
    Corporate Presentation March 2021 TSX: GBAR | OTCMKTS: GBARF Why Monarch? AT A GLANCE STRONG $20 OWNS ATTRACTIVE PIPELINE OF MILLION 100% OF VALUATION DEVELOPMENT AND IN CASH ALL ASSETS, VS PEERS EXPLORATION PROJECTS INCLUDING THE 750 TPD BEACON IN QUEBEC, A TOP-RATED MILL MINING JURISDICTION FULLY-INTEGRATED MINING COMPANY DEVELOPPING KEY PROJECTS § Near-term restart potential of Beaufor § New high-grade zones and strong potential for Gold Mine: new discoveries at McKenzie Break: - Fully-financed 42,500 m UG and surface - Fully-financed 14,500 m drilling program drilling program underway underway - 750 tpd Beacon mill fully-permitted § Croinor Gold is a fully permitted mine with an - Production potential of 25,000 oz/yr underexplored district scale land package § Beacon mill excess capacity available - Fully-financed 6,200-metre drilling program for custom milling underway § Total combined resources: 588k M&I and 329k oz Inferred1 2 1 Sources on slide 19. Why Monarch? PROVEN TRACK RECORD OF VALUE CREATION THROUGH ACTIVE M&A $25M TRANSACTION $200M Richmont Mines TRANSACTION Quebec Assets Monarch Gold acquireD by acquireD by Monarch Gold Yamana GolD BOARD MEMBERS PRIOR ACTIVE M&A INVOLVEMENT $30M $140M VALUE $933M $3.68B TRANSACTION Clifton Star Mining TRANSACTION TRANSACTION Cadiscor Resources acquireD by First Mining Richmont Mines Detour Gold acquireD acquireD by North to create a $140M acquireD by Alamos GolD by KirklanD Lake GolD American PallaDium company 3 Corporate Overview FINANCIAL HIGHLIGHTS 69.5M 75M $20M NIL $60M $40M 588K SHARES O/S FD CASH Debt Market Cap EV Oz (M+I)1 CORPORATE STRUCTURE VALUATION UPSIDE Management $145 & Board $132 Other Mining 3% Partners Alamos Gold $118 10% 13% Yamana Gold 6% Institutions Average: $63/oz 20% $54 $46 $45 $44 $39 $33 $16 $11 $10 Retail 48% QMX RDS BNAU FURY PRB ECR GBAR BTR TML OIII FPC SO I 4 1 Sources on slide 19.
    [Show full text]
  • Plate Tectonics, Volcanic Petrology, and Ore Formation in the Santa Rosalia Area, Baja California, Mexico
    Plate tectonics, volcanic petrology, and ore formation in the Santa Rosalia area, Baja California, Mexico Item Type text; Thesis-Reproduction (electronic) Authors Schmidt, Eugene Karl, 1947- Publisher The University of Arizona. Rights Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Download date 01/10/2021 01:50:58 Link to Item http://hdl.handle.net/10150/555057 PLATE TECTONICS, VOLCANIC PETROLOGY, AND ORE FORMATION IN THE SANTA ROSALIA AREA, BAJA CALIFORNIA, MEXICO by Eugene Karl Schmidt A Thesis Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1 9 7 5 z- STATEMENT BY AUTHOR This thesis has been submitted in partial ful­ fillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. Brief quotations from this thesis are allowable without special permission, provided that accurate ac­ knowledgment of source is made. Requests for permission for extended quotation from or reproduction of this manu­ script in whole or in part may be granted by the head of the major department or the Dean of the Graduate College when in his judgment the proposed use of the material is in the interests of scholarship. In all other instances, however, permission must be obtained from the author.
    [Show full text]
  • Management's Discussion and Analysis
    (formerly AuRico Gold Inc.) Management’s Discussion and Analysis (in United States Dollars, unless otherwise stated) For the three and six months ended June 30, 2015 (FORMERLY AURICO GOLD INC.) FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2015 TABLE OF CONTENTS MERGER WITH ALAMOS GOLD INC. ................................................................................................................ 3 OVERVIEW OF THE BUSINESS ........................................................................................................................ 3 HIGHLIGHTS .................................................................................................................................................. 4 OUTLOOK AND STRATEGY ............................................................................................................................. 5 YOUNG-DAVIDSON ........................................................................................................................................ 6 EL CHANATE ................................................................................................................................................. 8 DISTRIBUTION TO AURICO METALS. ............................................................................................................. 10 SUMMARIZED FINANCIAL AND OPERATING RESULTS ..................................................................................... 11 CONSOLIDATED EXPENSES ........................................................................................................................
    [Show full text]