Now showing items 41-60 of 385

    • Developing hydrogen and carbon capture and storage projects in the state of Colorado

      Cheng Siew, Chiang; Littlefield, Anna; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-12-09)
      Over the past two years, both the hydrogen and carbon capture, utilization, and storage (CCUS) industries have gained momentum in the US. Project development in these industries has been rapidly accelerating with the growing financial incentives from policymakers for the commercial deployment of these projects. The signing of the Infrastructure Investment and Jobs Act (IIJA), also known as the Bipartisan Infrastructure Law, in November of 2021 marked the US Department of Energy's largest single investment in carbon management, along with significant investments funding clean hydrogen development.
    • Climate change: toward a more resilient Africa

      Saghir, Jamal; Ijjasz-Vasquez, Ede; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-11-29)
      The impacts of the invasion of Ukraine on agricultural exports and fertilizers, the food price hikes, the inflationary pressures, the unsustainable debt levels for many countries, and the possible global economic recession are severely impacting African economies and communities. In addition, the climate is changing, and Africa needs to adapt. It must adapt to rising temperatures, more extreme storms, and floods, rising sea levels, more intense heatwaves, and longer and more severe droughts. Yet though the risks are great, so also are the opportunities that successful adaptation can bring.
    • A new paradigm for managing mineral trade routes in Africa

      Freeman, Baba; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-11-16)
      The African Copper belt is a major supplier of key minerals such as copper, nickel, and cobalt to the world economy. Extracting and transporting these minerals to market will be essential to the success of the energy transition as demand for solar and wind energy, and battery metals soar exponentially over the next three decades. In contrast, the dismal state of road infrastructure for transporting the minerals from mine to port creates a major impediment to the commercial competitiveness of miners in the region and threatens economic rents accruable to host countries and communities. This commentary describes a new paradigm that could radically transform the design of solutions to ease logistics problems in the region.
    • Energy resources of the Denver and Cheyenne basins, Colorado: resource characteristics, development potential, and environmental problems

      Kirkham, Robert M.; Ladwig, L. R. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1980)
      This report presents the results of a 32-month study of the geologic characteristics, development potential, and environmental problems related to the exploration for and development of energy resources in the Denver and Cheyenne Basins, Colorado. Coal, lignite, uranium, oil, and gas energy resources are evaluated for their development potentials. The report is organized into the following sections: Introduction, General geology; Coal resources; Uranium resources; Oil and gas resources; and Land use conflicts related to energy resource development. The investigation was conducted by the CGS and cooperatively funded by a U.S. Geological Survey Grant on the Study of Environmental Impact of Energy Resource Development in the Denver Basin, Colorado.
    • Collapsible soils in Colorado

      White, Jonathan L.; Greenman, Celia (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 2008)
      Collapsible Soils in Colorado describes the geologic setting, the geomorphic and soil conditions, locations of potential susceptibility, and engineering properties of collapsible soils in Colorado. This bulletin is the result of a comprehensive and multi-year effort to understand collapsing soil behavior and the geologic and geomorphic conditions where they can form. In addition, this report contains a 1:1,000,000-scale map of Colorado that shows locations of soil collapse compiled from soil test data and damage incidents, climatic exclusions zones, and areas of the state where collapse-prone soil may exist. Collapsible soils are a widespread geologic hazard in the state, common in almost all semi-arid non-mountainous areas. The CGS program addressing this particular geohazard has increased public and professional awareness of collapsible soils. At the same time, through robust evaluation and research, it has improved the existing geological and geotechnical professional standard-of-practice related to the hazard. Note: The Association of American State Geologists announced that their annual John C. Frye Memorial Award for 2009 is granted to the CGS and the staff members who authored EG-14.
    • Artificial recharge of ground water in Colorado: a statewide assessment

      Topper, Ralf E.; Barkmann, Peter E.; Bird, David A.; Sares, Matthew A.; Young, G. B. C.; Keller, J. W.; Duchene, H. R.; Carlson, J.; Wait, T. C.; Greenman, Celia; et al. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 2004)
      Ground water aquifers can be used as reservoirs to provide increased water storage capacity in Colorado through an intentional, engineered water recharge process to aquifers called "artificial recharge." CGS has completed an assessment of the current and potential use of artificial recharge in our state. The report widely addresses several pertinent aspects of artificial recharge including the reasons for using the technique; the current methods or technologies used; where artificial recharge is being done in Colorado, the US and internationally; types of aquifers that can be used for artificial recharge and which Colorado aquifers are best suited for water storage. An inventory of artificial recharge projects within Colorado identified 19 active operations as of 2004. A weighted ranking system was established to evaluate the key physical properties of the state's sixteen highest-potential unconsolidated aquifers and 29 highest-potential consolidated aquifers. The evaluation of the available storage capacity in Colorado's highest-potential aquifers was guided by the desire to find opportunities to develop large-scale artificial recharge projects, i.e., defined as having storage capacity in excess of 100,000 acre-feet. Thirteen of the sixteen primary unconsolidated rock aquifers have sufficient storage capacity to accommodate a large-scale project. In aggregate, the lower South Platte River alluvium and the San Luis Valley alluvium have the capacity to store in excess of one million acre-feet. All but two of the 26 primary consolidated rock aquifers also have sufficient storage capacity. Because of their large areal extent and head freeboard, the majority of these aquifers can store millions of acre-feet of water.
    • Promises and problems of a "new" uranium mining method: in situ solution mining

      Kirkham, Robert M. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1979)
      This study was a cooperative investigation conducted by the CGS and funded by a U.S. Geological Survey Grant on the Study of Environmental Impact of Energy Resource Development in the Denver Basin, Colorado. It was presented at the 5th Governor's Conference on Environmental Geology held in Grand Junction from October 9-12, 1979. As technology advances and the economy changes, new mining methods are researched and developed by industry and the Federal government. Planners may encounter situations where industry wishes to utilize a new, unfamiliar mining technique to recover a mineral resource. Many of these methods offer considerable socio-economic and environmental advantages over conventional mining and milling techniques. Other of these methods, however, may result in significant impacts that concern planners. This paper describes only one of these methods, in situ solution mining, which is a relatively old technique that recently has been successfully used to extract uranium. This report presents the mining and processing techniques, wastes and effluents, waste disposal and control, monitoring programs, environmental effects of accidents, and restoration.
    • Geologic hazards in the Big Thompson Canyon area, Larimer County, Colorado

      Soule, James M.; Rogers, William B. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1976-12)
      The intense rain and subsequent flooding on the Lower Big Thompson River basin region between 31 July and 01 August 1976 activated or accelerated several geologic processes. The main Big Thompson Canyon area was directly affected, along with its tributaries and drainages. This mapping project delineates the location of geohazards resulting from the storm as well as areas where similar adverse events could occur sometime in the foreseeable future. Plates 1 through 4 include: 1) Index with introductory text; 2-3) West and East map halves; 4) geomorphic features formed by flooding.
    • Coal mine subsidence and land use in the Boulder-Weld coalfield: Boulder and Weld counties, Colorado

      Amuedo and Ivey; Myers, A. R.; Hansen, J. B.; Lindvall, R. A.; Ivey, J. B.; Hynes, J. L. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1975)
      The problem of subsidence resulting from the undermining of the surface has received a great deal of study over the past 100 years. Much of this work has been done in Europe where industry, population density, and coal mining tended to grow and develop in the same areas. Damage to surface structures in highly urbanized areas such as the Ruhr and the English Midlands led to intensive investigations as to how to predict where and when subsidence would occur and how to prevent or minimize such subsidence. Until recently most of the significant research on surface subsidence was done abroad and has been published in journals which are not easily obtainable or are in a language other than English. In Europe, most underground coal mining is done by methods different than those commonly used in the Boulder-Weld coalfield. For this reason, one must be cautious in applying European principles of subsidence prediction to the Boulder-Weld coalfield where the layout and condition of the mines are quite different. In the last decade, land development has encroached on the undermined area of the Boulder-Weld coalfield, and the importance of subsidence has been recognized. This study is directed primarily toward the problems of land-use in those undermined areas where subsidence has occurred in the past and may occur in the future. Absolute predictability of the amount and area of subsidence in the Boulder-Weld coalfield is not possible with records now available. In Europe land-use plans have evolved to take subsidence into account, and detailed records have been maintained over long periods of time. It is unfortunate that the level of record-keeping in the Boulder-Weld coalfield has not been geared to land-use needs, because the present lack of data severely limits the accuracy of subsidence prediction. Within the limitations imposed by the adequacy of mine data, this study is intended to bring together a body of information that will be useful to planners and geologists involved in bringing the land to its optimum use.
    • Roaring Fork and Crystal valleys: an environmental and engineering geology study, Eagle, Garfield, Gunnison, and Pitkin counties, Colorado

      Olander, Harvey C.; Lamm, Nancy B.; Florquist, Bruce A. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1974)
      An environmental and engineering geology study has been made of the Roaring Fork and Crystal Valleys. The 300 square mile study area encompasses parts of four counties (Eagle, Garfield, Gunnison, and Pitkin) in west central Colorado. The purpose of the study was to compile sufficient information to prepare comprehensive maps (Plates 1-3) and text concerning the environmental and engineering geologic characteristics of the Roaring Fork Valley, from Glenwood Springs to Aspen, and the Crystal Valley, from Carbondale to the vicinity of Marble, Colorado. Report sections include: Introduction; Environmental and Engineering Geology (with detailed discussion of the surficial and bedrock geology); Groundwater and geologic resources; and Conclusions. Also included are four appendices.
    • Environmental and engineering geology of the Windsor study area, Larimer and Weld counties, Colorado

      Shelton, David C.; Rogers, William P. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1975)
      Engineering and environmental geology of the Windsor study area, covering eight 7.5-minute quadrangles in Larimer and Weld counties. Included are the cities of Fort Collins, Loveland, Greeley, and Windsor. Model geologic baseline-data study for a rapidly urbanizing area. 11 plates (1:48,000 and 1:96,000). Information included on plates: a) Bedrock geology; b) shallow surficial materials; c) slope analysis; d) drainage basins and areas of past flooding; e) existing land use; f) sand and gravel resources; g) groundwater availability; h) water quality and sources of potential pollution; i) bedrock surface topography of valley-fill areas; j) solid waste disposal suitability; k) energy and mineral resources (excluding sand and gravel).
    • Potentially swelling soil and rock in the front range urban corridor, Colorado

      Hart, Stephen S. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1974)
      Swelling is generally caused by expansion due to wetting of certain clay minerals in dry soils. Therefore, arid or semiarid areas such as Colorado with seasonal changes in soil moisture, experience a much higher frequency of swelling problems than eastern states which have higher rainfall. The Front Range Urban Corridor includes the foothills and piedmont area of Colorado from Fort Collins and Greeley on the north to Pueblo and Canon City on the south. This area includes more than 80 percent of Colorado's population. Although only half of the 30 sedimentary bedrock formations that are exposed in the Urban Corridor contain swelling clay, these swelling formations underlie all of the major cities. Swelling clays are, therefore, one of the most significant, widespread, and costly, but least publicized, geologic hazards in Colorado. The report sections include: What is swelling clay; How can one recognize swelling soil or rock; Examples of swelling clay damage; Potential hazard areas in the Urban Corridor; What can be done to minimize damage; and Suggestions for further study. Also included are four appendices containing a) Glossary, b) Sources of project data, c) Factors influencing swelling of natural clay soils, and d) Methods for estimating swell potential from soil index properties.
    • Engineering geology report for planning district 9, state of Colorado

      F.M. Fox & Associates (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1974)
      This report presents the results of a comprehensive investigation of the geology and engineering geology of Planning District 9, State of Colorado. Planning District 9 includes the counties of Archuleta, Dolores, La Plata, Montezuma and San Juan. Within the Planning Districts, specific geologic factors which should be considered to insure safe, efficient and environmentally sound land use decisions. This investigation was done on a reconnaissance basis and the factors include, but are not limited to, the following: a. Mineral resources which affect land use decisions; b. Massive land movements or other unstable surface conditions; c. Areas of swelling soils, settling soils or other soil factors that will affect foundation construction; d. General areas of flood danger and/or erosional hazards; e. Areas of high water table, both permanent and seasonal; f. General geologic constraints that will affect selection and operation of solid waste disposal sites; g. Pollution potential and other possible hazards associated with old mine tailing dumps; h. Other critical factors which may become evident during the course of the study. The report identified four problem areas. Two problem areas, similar in nature, are listed together as IA and IB. Problem Area IA is Sleeping Ute Mountain in western Montezuma County, and IB is the area of the La Plata Mountains on the Montezuma-La Plata County border. Problem Area II is located in eastern Dolores County. Problem Areas IIIA and 11 IB are both in San Juan County. Problem Area IV is located in eastern Archuleta County. Specifics of these problem areas are provided in the report.
    • Engineering geology report for planning district 1, state of Colorado

      F.M. Fox & Associates (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1974)
      The purpose of this report is to present the results of a comprehensive investigation of the geology and engineering geology of Planning District #1, State of Colorado. District #1 includes the counties of Morgan, Logan, Washington, Yuma, Phillips and Sedgwick. Within the Planning District, specific geologic factors which should be considered to insure safe, efficient and environmentally sound land use decisions. This investigation was done on a reconnaissance basis and the factors include, but are not limited to, the following: a. Mineral resources which affect land use decisions; b. Massive land movements or other unstable surface conditions; c. Areas of swelling soils, settling soils or other soil factors that will affect foundation construction; d. General areas of flood danger and/or erosional hazards; e. Areas of high water table, both permanent and seasonal; f. General geologic constraints that will affect selection and operation of solid waste disposal sites; g. Pollution potential and other possible hazards associated with old mine tailing dumps; h. Other critical factors which may become evident during the course of the study. Geologically, District #1 is similar throughout and the area has shared a consistent geologic history. Specific geological engineering and planning considerations were given to the following soils and rocks: alluvium, loess, dune sand, sedimentary rock and the Pierre Shale.
    • Engineering geology report for planning districts 7 and 13, state of Colorado

      F.M. Fox & Associates (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1974)
      This report was originally prepared for Planning District 7 which has since been divided into two planning districts, 7 and 13. The purpose of this report is to present the results of a comprehensive investigation of the geology and engineering geology of Planning Districts 7 and 13. Planning Districts 7 & 13 include the counties of Lake, Chaffee, Fremont, Custer, Pueblo, Huerfano and Las Animas. Within the Planning Districts, specific geologic factors which should be considered to insure safe, efficient and environmentally sound land use decisions. This investigation was done on a reconnaissance basis and the factors include, but are not limited to, the following: a. Mineral resources which affect land use decisions; b. Massive land movements or other unstable surface conditions; c. Areas of swelling soils, settling soils or other soil factors that will affect foundation construction; d. General areas of flood danger and/or erosional hazards; e. Areas of high water table, both permanent and seasonal; f. General geologic constraints that will affect selection and operation of solid waste disposal sites; g. Pollution potential and other possible hazards associated with old mine tailing dumps; h. Other critical factors which may become evident during the course of the study. The report identified six problem areas in Planning District 7. Problem area I is the Leadville mining district in northeastern Lake County. Problem area II is the Spanish Peaks region with the associated radial dike swarms. Problem area III covers disseminated areas of potential avalanches. Such areas are common in alpine regions, which includes the Sangre de Cristo Range, the Wet Mountains, the Mosquito Range and the Sawatch Range. Problem area IV encompasses areas that were covered by glaciers in the past. Glaciers have covered most of the high mountain ranges, including the Sangre de Cristo Range, the Mosquito Range, and the Sawatch Range. Problem area V includes areas of extremely complex geology. There are several located in the major mountain ranges, including the Mosquito, Sangre de Cristo, Sawatch, and Wet Mountain Ranges. Problem Area VI includes groundwater in Pueblo County, areas of which may be contaminated significantly by radioactive material. Specifics of these problem areas are provided in the report.
    • Geologic aspects, soils and related foundation problems, Denver metropolitan area, Colorado

      Hamilton, Judith L.; Owens, W. G. (Colorado School of Mines. Arthur Lakes LibraryColorado Geological Survey. Department of Natural Resources, 1972)
      The purpose of the study was to provide a non-technical summary of the soils and related geologic problems in the Denver Metropolitan area. Data from published and unpublished sources have been synthesized and incorporated into this report in a form that can be used by the general public, planners, engineers, architects, contractors, governmental agencies, and land developers. The study area includes approximately 500 square miles in Township 2 South through Township 5 South and Range 67 West through those portions of Ranges 69 West and 70 West of the 6th P.M. which lie east of the Dakota sandstone hogback. The geologic and soils conditions of the Denver area tend to create several difficulties in construction. The major soil problems are: swelling soils, settling soils, and potential landslide areas. Soils developed from swelling clays or clay shales increase in volume on exposure to moisture and often cause cracking of sidewalks, streets and building foundations. Common methods of treatment of these soils to prevent swelling are provided.
    • Africa's energy transition & critical minerals

      McKennie, Caitlin; Hassan, Al Hassan; Abanga Abugnaba, Mama Nissi; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-11-03)
      As the energy crisis perseveres and governments around the world attempt to meet net zero emission timelines, there are many eyes on Africa's natural resource supply. Africa is resource rich. The continent is endowed with significant hydrocarbon reserves and critical minerals required for low-carbon technologies. As political and environmental developments around the world seek to decarbonize supply chains, pivoting investments over time towards critical minerals in Africa can help and bridge the gap between emerging/developing economies and energy security.
    • Oil & gas industry being a good neighbor: getting a license to operate through proactive community engagement

      Lindsey, Wyatt; Crompton, James; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-10-27)
      In the DJ Basin in Colorado, there has been a collision of industry activities and community development due to the "mini-boom" of O&G development, stemming from hydraulic fracking of the Niobrara Formation and the growing population along the Front Range. This led to a decrease in public support for industry permits starting around 2013 and an increase in operational notification requirements (Turkewitz 2018 & MacKenzie 2016). By 2013, the Front Range communities were pushing for more local control and enacting local bans of operations on O&G development to address distributive injustice and differing vulnerabilities (Turkewitz 2018 & McKenzie). 2019 saw the passage of SB-181 which made a big difference in the permitting process for O&G to emphasize public health, safety, and welfare. Over the next two-year period, the state experienced a significant restructuring of its O&G regulations and regulatory bodies (Jaffe 2022).
    • On equal footing: the impact of FERC Order 841 on grid battery installations

      Lange, Ian; Oke, Anuja; McKennie, Caitlin; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-10-26)
      New technologies don't often "fit" within market designs as well as the incumbent technologies. As a result, subtle changes in market rules can have large impacts on new technology adoption, and their associated supply chains. This research measures the impact on grid battery installations, and the resulting lithium demand – both generated by the June 2020 Federal Energy Regulatory Commission (FERC) Order 841.
    • The keys to the future oil and gas production facility: the Colorado story

      Crompton, James; Lindsey, Wyatt; Cheng Siew, Chiang; Colorado School of Mines. Payne Institute for Public Policy (Colorado School of Mines. Arthur Lakes LibraryPayne Institute for Public Policy, 2022-10-26)
      With growing concern about climate change, the need for a diversified energy portfolio for energy security and the expectation for an energy transition away from fossil fuels to non-carbon energy solutions, such as renewables, all signals suggest that the energy transition has already begun. States like Colorado have been rewriting regulations to include stricter rules on oil and gas production. While the energy industry is transitioning due to market forces, public policies, and technological advances, fossil fuels are not yet out of the picture for the total energy supply of the future.