. BULLETIN UNITED STATES DEPARTMENT OF THE INTERIOR. USGS CIRC. GEOLOGICAL SURVEY. CIRCULAR -- Petroleum COMPLETE TITLE ABBREVIATED TITLE 0149-1423 AAPG BULLETIN AAPG BULL. 0195-2986 AAPG EXPLORER AAPG EXPLORER. GEOLOGY STUDIES BRIGHAM YOUNG UNIV. GEOL. STUD. 0037-9409 BULLETIN DE LA SOCIETE ...

Temperature gradient data derived from drill holes in an east-west zone through the center of the southern peninsula of Michigan are analyzed. The purpose of this work is to investigate possible problems in utilizing the American Association of Petroleum Geologists data base. Michigan was chosen because a review of that State's geothermal potential shows ...

In 1998, the U.S. Geological Survey (USGS), in cooperation with the South ... of carbonate pore space for reservoir characterization, AAPG Bulletin, v. ...

The technical program includes a total of 53 papers almost equally provided by the AAPG and the SEPM. The broad AAPG program covers many energy forms, including coal, uranium, geothermal, oil, and gas. The papers include regional studies throughout the Rocky Mt. area, including Canada, and local studies on specific fields and ...

Through 1982, AAPG reported new field discovery rates. In 1985, a paper demonstrated that through 1975 the AAPG survey of new field discoveries had significantly underreported the larger new field discoveries. This presentation updates the new field discovery data reported in that paper and extends the data through the mid-1980s. ...

Beaver County. Nature of Geothermal Energy Geothermal Resources in the United States Geothermal Resources in Utah Interactive Map of Wells & Springs of Utah Geologic Setting...

Contents: Historical background and summary result of the geothermal resource assessment for Japanese geothermal fields; Assessment of geothermal resources of Japan--1990; A trial estimate of geothermal resources by chemical mass discharge in Niseko area,...

The technical features of the existing and planned geothermal power plants in Japan are surveyed. A description is given of the Geothermal Energy Research and Development Co., Ltd. (GERD) which has capabilities in all areas of geothermal power development...

This report presents results of geothermal technology development and surveys of geothermal energy which were carried out by New Energy Development Organization in FY 1985. In the area of geothermal technology development, studies were made on elemental t...

The beginning of the Geothermal Research Program, its organization, objectives, fiscal history, accomplishments, and present emphasis. The projects of the Geothermal Research Program are presented along with a list of references.

As a part of the geothermal development promotion survey, a survey is conducted at exploration wells of the Hakkoda west area by jettingout/inducing geothermal fluids by a Swabbing method. There is no microseism in both vapor and geothermal water during t...

A survey of oil field fluids companies indicates that there are no geothermal completion fluids on the market. It is recommended that development of a completion fluid and appropriate support testing be funded.

This factsheet briefly summarizes and clarifies the application of aerial infrared surveys in geophysical exploration for geothermal energy sources and environmental monitoring for potential volcanic hazards.

The Gas Research Institute (GRI), in association with Energy and Environmental Analysis, Inc. (EEA), has developed a data base characterizing the discovered oil and gas fields in the lower 48 United States. The number of fields in this data base reported to have been discovered since 1947 substantially exceeds the count presented in the AAPG survey of ...

The United States Geological Survey publication Assessment of Geothermal Resources of the United States - 1978 is described. Details of geothermal resources within the US are discussed. Geothermal applications in California, Oregon, Idaho, Nevada, Hawaii, and Louisiana are described briefly. (MJF)

The national government, in order to promote the development of geothermal resources, has taken up geothermal energy as part of the Sunshine Project, and is going ahead with efforts toward the establishment of geothermal survey and prospecting techniques, drilling and extraction techniques, techniques for power ...

An overview of geothermal power generation is presented. A survey of geothermal power plants is given for the following countries: China, El Salvador, Iceland, Italy, Japan, Mexico, New Zealand, Philippines, Turkey, USSR, and USA. A survey of countries planning geothermal power plants is ...

An overview of geothermal power generation is presented. A survey of geothermal power plants is given for the following countries: China, El Salvado, Iceland, Italy, Japan, Mexico, New Zealand, Philippines, Turkey, USSR, and USA. A survey of countries planning geothermal power plants is ...

The results of the present telluric survey show that the electrical resistivity structure in the region of the Dunes Geothermal Anomaly is complex. Several points are clear, however. The Dunes Geothermal Anomaly is a region of low resistivity, the size an...

For geothermal development, it is important to evaluate natural environment such as natural parks in the research level of geothermal resources reserves. The aim of this survey is to develop this evaluation method, to study the way to introduce the method...

The report describes work conducted during the first phase of an electrical geophysical survey of the Coso Geothermal Area. The objective of the survey was to outline areas of anomalously conductive ground which may be associated with geothermal activity ...

An attempt is made to determine the sources that are responsible for producing geothermal anomalies observed within the southern Black Hills region. Lithologic and structural boundaries residing in the upper crust and their relationship to the geothermal system are discussed. A regional gravity survey was supplemented by a regional ...

An electromagnetic (EM) sounding survey was performed over a region encompassing the Dixie Valley geothermal field with the purpose of mapping the subsurface resistivity in the geothermal field and its surroundings. The EM survey consisted of 19 frequency...

An electromagnetic (EM) sounding survey was performed over a region encompassing the Dixie Valley geothermal field to map the subsurface resistivity in the geothermal field and the surrounding area. The EM survey, consisting of 19 frequency-domain depth s...

Name U.S. Geological Survey A Helicopter-Borne Magnetic Survey over Dixie Valley Geothermal Field, Nevada: A Web Site for Distribution of Data by U. S. Geological Survey &...

A survey of the status of geothermal energy in the US covers the ongoing expansion of capacity at The Geysers in northern California, in terms of oil equivalent, from 5 to 9 million bbl/year; expectation of an imminent breakthrough in the use of geothermal hot water to produce energy in California's Imperial Valley; ...

The paper surveys the spouting of geothermal fluids in test boring wells, the well logging, and the status of geothermal fluids, as a part of the geothermal development promotion survey in the Mizuwake-Toge south area. In the spouting test of N3-MW-6 well...

Brief remarks on the nature, extraction, use, and advantages of geothermal steam and heat are followed by a nation-by-nation survey of geothermal resources around the world. Several world maps indicating occurrences of usable geothermal resources, existing geothermal plants, and geological ...

AAPG Memoir, 1, Tulsa, OK, American Association of Petroleum Geologists (AAPG), in Classification of Carbonate Rocks, Ham, W. E., ed. ...

... 8:40 Deformation in the Casa Diablo and geothermal well field, eastern California ... Deformation in the Casa Diablo Geothermal Well Field, ...

The paper reports results of the investigation of properties of geothermal fluids in Hongu, Wakayama Pref., under the fiscal 1992 survey of the geothermal energy development promotion. The well surveyed did not come to produce natural steam at a drilling ...

The metadata catalog was brought online for public access May 14, 1998. Since then dozens of users have registered and began to access the system. The system was demonstrated at the AAPG annual meeting in Salt Lake City and the EAGE (European Association of Geoscientists and Engineers) annual meeting in Leipzig, Germany. Hart Publications and PTTC �NetworkNews� have ...

The metadata catalog was brought online for public access May 14, 1998. Since then dozens of users have registered and began to access the system. The system was demonstrated at the AAPG annual meeting in Salt Lake City and the EAGE (European Association of Geoscientists and Engineers) annual meeting in Leipzig, Germany. Hart Publications and PTTC ?NetworkNews? have ...

This report is a reort of the survey made from 26 September, 1988 through 31 March, 1989 and the objectives of the survey were to suvey on the methods to reduce the geothermal well drilling cost which accounts for a good portion of the steam cost constitu...

A survey is presented in order to determine the technology status, gaps, and needs for research and development programs in the environment and safety areas of this resource. The information gathered from a survey of geothermal energy development undertak...

As a survey in fiscal 1993 to promote the geothermal development, the first annual survey was conducted on the environment in Yamaaoizawa Area No. C-2. The present survey was conducted to grasp the influence of geothermal exploration drilling on the envir...

have the potential to contribute largely to the national geothermal portfolio. In fact, the U.S. Geological Survey has identified more than 120,000 megawatts of untapped...

Lost circulation during drilling and completion of geothermal wells can be a severe problem, particularly in naturally fractured and/or vugular formations. Geothermal and petroleum operators, drilling service companies, and independent consultants were in...

A 3-D surface seismic reflection survey, covering an area of over 3 square miles, was conducted at the Rye Patch geothermal reservoir (Nevada) to explore the structural features that may control geothermal production in the area. In addition to the surfac...

The following topics are covered: geology; geophysical surveys; geothermal wells, springs, and heat flow; hydrology; drilling program, well testing, and mineralogical and petrographic studies of samples from geothermal wells. (MHR)

An overview appraisal of the geothermal resources in the Tennessee Valley Region revealed geothermal resources of potential usefulness in two of 13 subregions: the New Madrid Seismic Zone and the central segment of the Northern Gulf Coastal Plain. The app...

The development of geothermal energy as a source of electric power in the United States is reviewed. A thorough description is given of The Geysers geothermal power project in northern California. The recent efforts to exploit the hot-water resources of t...

The Energy Information Administration (EIA) collected information on shipments of geothermal heat pumps, often called ground source or geoexchange systems, for the first time in 1997. This information is based on data filed on the EIA's Form EIA-902, Annual Geothermal Heat Pump Manufacturers Survey.

Deep dc resistivity surveying has been performed at the Ahuachapan Geothermal Field in western El Salvador. The field lies on the north base of the volcanic range that runs the length of the country and is the site of a significant active geothermal power...

This book studies the impact of geothermal energy development in Imperial County, California. An integrated assessment model for public policy is presented. Geothermal energy resources in Imperial County are identified. Population and employment studies project the impact of geothermal on demography and population movement in the ...

This book presents the papers given at a seminar on the use of geophysical survey methods in geothermal exploration. Topics considered at the seminar included heat transfer, conductive heat flow anomalies, deep electromagnetic sounding, a computation method for direct current geoelectric fields, the measurement of ground deformation, active seismic ...

The paper investigates how hot springs are affected by drilling of environmental survey wells and blowout/injection of geothermal fluids which are incidental to the geothermal energy development in the Hakkoda west area. Hot springs for survey are classif...

The results of a public opinion survey on geothermal development are presented. It was concluded that nine out of ten persons surveyed were in favor of it. There was clear agreement that geothermal development should be strictly regulated. However, only a small minority of the Imperial County population feels that ...

Major activities, programs, and conferences in geothermal energy during 1982 are highlighted. These include first comprehensive national assessment of U.S. low-temperature geothermal resources (conducted by U.S. Geological Survey and Department of Energy), map production by U.S. Geological Survey, ...

In order to have the enterprises promote the geothermal development, the present status of spas in Okushiri Area was studied in fiscal 1992 as a series of geothermal development promotion survey. Then, influence of geothermal development was assessed on t...

Following is complete draft.Geothermal Summary for AAPG Explorer J. L. Renner, Idaho National Laboratory Geothermal energy is used to produce electricity in 24 countries. The United States has the largest capacity (2,544 MWe) followed by Philippines (1,931 MWe), Mexico (953 MWe), Indonesia (797 MWe), and Italy (791 MWe) (Bertani, ...

A seismic reflection survey using the ''Vibroseis'' technique and a combination of both compressional and horizontally polarized shear waves has been successfully completed over the East Mesa Geothermal Field. The interpreted results of the survey demonst...

In 1993, the US Fish and Wildlife Service (USFWS) entered into an interagency agreement with the Department of Energy (DOE) to conduct specific biological surveys to identify potential impacts of the proposed geothermal development on the natural resource...

The paper surveys and arranges the present status, the problems, and the status of technical development in the investigation and the drilling and production technology required for development of deep geothermal resources which are promising as a resourc...

US Geological Survey visual mark U.S. Geological Survey Professional Paper 1578 Online version 1.0 Hydrothermal Mineralogy of Core from Geothermal Drill Holes at Newberry Volcano,...

The plan of the US Geological Survey and Kansas Geological Survey to drill four deep hydrologic tests in Kansas prompted a geothermal study in these wells. These wells were drilled through the Arbuckle Group to within a few feet of basement and two of the...

Reports on the exploration for geothermal resources by means of gravity surveys are included in this retrospective bibliography. (Contains 136 citations.)

This report is the fourth in a series dealing with the geothermal power plants of the world. Here the existing and planned stations in the south Pacific area are surveyed including New Zealand, the Philippines and Indonesia. Details are given for the plan...

Survey visual mark U.S. Geological Survey Open-File Report 99-425 Online version 1.0 Geothermal Industry Temperature Profiles from the Great Basin By John H. Sass1, Susan S....

link to main US Geological Survey website U.S. Geological Survey Circular 1249 Geothermal Energy-Clean Power From the Earth's Heat By Wendell A. Duffield and John H. Sass...

The central Seward Peninsula was the subject of a geological, geophysical and geochemical reconnaissance survey during a 30-day period in the summer of 1980. The survey was designed to investigate the geothermal energy resource potential of this region of...

In the geothermal drilling, reduction of the cost of well drilling is an important subject for technical development. The geothermal resource development tends to be made at higher temperatures and at deeper wells. In the present drilling technology, the ...

An extensive electrical resistivity survey was conducted in the Salton Sea Geothermal Field, Imperial Valley, California. Very high energizing power (upward of 200 amperes) was employed to determine the extremely low resistivities (less than 0.5 ohmmeters...

link to main US Geological Survey website U.S. Geological Survey Open-File Report 02-132 Distribution of High-Temperature (>150 °C) Geothermal Resources in California By John H....

The important role played by geophysical prospecting in the discovery and development of the Cesano geothermal field is described. Gravity surveys revealed a strong positive anomaly trending northwest which separated two negative anomalies. This was inter...

In relation to the exploration of geothermal resource, conducted is a survey of the trend and the present status of exploration techniques, and from the survey the development and introduction of new exploration techniques are discussed. As for the trend ...

Several exploration programs were conducted at the Beowawe Geothermal Prospect, Lander and Eureka County, Nevada. Part I, consisting of a shallow temperature hole program, a mercury soil sampling survey, and a self-potential survey were conducted in order...

A survey of the potential for producing electric power from indigenous US geothermal resources as estimated by the electric utilities is presented. Data for these reports are taken from two sources: forecasts of future year generating capacity as detailed by the National Electric Reliability Council, and informal estimates by individual utilities in ...

... MILITARY FACILITIES, SOILS, MERCURY, RADON, GROUND WATER, DIRECT CURRENT, ELECTRICAL RESISTANCE, SURVEYS. ...

For the purpose of applying VSP and tomography technologies using elastic waves to geothermal survey, improvement and capacity increase were made of a multilevel/digital downhole receiving system. As for the downhole units composing the system, an examina...

The Los Alamos Scientific Laboratory (LASL) geothermal exploration sequence includes: (a) review of AAPG/USGS gradient maps, (b) literature search, (c) consideration of potential markets, (d) groundwater silica geothermometry, (e) analysis of bottom-hole temperatures, (f) heat flow measurement of available wells, and (g) drilling of new test holes. This ...

A summary is presented of the second and last NATO-CCMS (North Atlantic Treaty Organization--Committee on Challenges of Modern Society) Geothermal Pilot Study Information Meeting on Dry Hot Rock Geothermal Energy. Only summaries of the formal presentations are included. Overviews of the Energy Research and Development Administration (ERDA) and the U.S. ...

This directory contains the following: US governmental agencies and information resources; state geological surveys and district water resources division; state by state directory of energy related governmental contracts; public utilities; power pools; selection of private organizations, associations, and societies involved with energy industries; specialized international ...

Rates of ground radon emanation, in the Puna geothermal area on the lower east rift of Kilauea volcano, were measured by alpha particle sensitive cellulose nitrate films. The survey successfully defined an area of thermal significance associated with the rift structure, and suggests that a thermally driven ground gas convection system exists within, and ...

In the geothermal energy resource survey, a study being viewed from a landscape aspect was made on proper evaluation of the location and drawing-up of a landscape preservation policy. A, B, and C surveys are conducted for the geothermal energy development...

The result and evaluation of the geothermal development promotion survey in the Haneyama area were summed up. The geothermal development promotion survey in the Haneyama area was conducted in the area of approximately 300km(sup 2) of Kujuu-machi, Oita pre...

This project assessed the feasibility of developing geothermal energy on the Pueblo of Jemez, with particular attention to the Red Rocks area. Geologic mapping of the Red Rocks area was done at a scale of 1:6000 and geophysical surveys identified a potential drilling target at a depth of 420 feet. The most feasible business identified to use ...

The US Geological Survey is conducting the first quantitative assessment of low-temperature (less than 100/sup 0/C) geothermal reources in the United States. The survey has been aided in this task by the geothermal data-gathering programs of many state agencies and several private contractors supported by the State ...

The results of a survey of the attitudes of a Hawaiian Community toward geothermal development are described. The survey was conducted by a grassroots community organization, and high response rate (85%) provides a good representation of community sentiment. The findings in general suggest a substantial polarization of attitudes toward ...

Separate abstracts are included for development programs for electronic equipment involved with plasma research, data processing, uranium environmental surveys, and geothermal surveys.

This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of five presentations: ''Overview of Geopressured-Geothermal'' by Allan J. Jelacic; ''Geothermal Well Operations and Automation in a Competitive ...

Repeated fracturing and fracture sealing were observed in core samples from six geothermal areas. Both fracture porosity and morphology vary widely. The minerals that seal fractures show significant temporal variations. Water-rock reactions and alteration often produce low density or hydrous phases that further seal and block cracks. Such parameters as hydraulic permeability ...

A collection of methods for sampling and analysis of geothermal fluids and gases is presented. Compilations of analytic options for constituents in water and gases are given. Also, a survey of published methods of laboratory water analysis is included. It is stated that no recommendation of the applicability of the methods to ...

The objective of this project was to review and perform a critical evaluation of geothermal exploration methods and techniques. The original intent was to publish the work as a handbook; however, the information is not specific enough for that purpose. A broad general survey of geothermal exploration techniques is reported in ...

The Bureau of Geology and Mineral Technology, Geological Survey Branch, has been exploring for geothermal energy since May, 1977. The known major geothermal systems in Arizona are apparently caused by deep circulation of meteoric water through the complex fracture systems of the Basin and Range region and transition zone. This type of ...

With 40 plants in operation, France is now the second largest user of geothermal energy for direct applications after Iceland. This paper describes the geothermal resources in France, the doublet technique which consists of a production well and an injection well for disposing of waste water and also for maintaining aquifer pressure, and the direct uses of ...

This report contains a detailed summary of a methodical and comprehensive assessment of the potential of the Animas Valley, New Mexico geothermal resource leasehold owned by Lightning Dock Geothermal, Inc. Work described herein was completed under the auspices of the Department of Energy (DOE) Cooperative Agreement DE-FC04-00AL66977, ...

Findings are presented from two separate studies: a preliminary study of leaders of the geothermal industry and a second study of a ten percent representative sample of other firms. The studies are intended to determine if a need still exists for a federal grant-assisted geothermal demonstration power plant. The following are included: selection of the ...

In 1988, Geotest Hellas carried out a geophysical survey on Lesvos island using gravity, vertical electrical soundings and self-potential methods in order to study the geothermal potential of the island. This paper is based on the primary results presented by Geotest Hellas, which were re-examined and presented in a different form to facilitate the ...

Infrared scanning surveys by aircraft followed by reconnaissance-type electrical surveys and ground noise surveys narrowed down the promising area to the east rift of Kilauea. The surveys carried out over the east rift included magnetic, gravity, and elec...

A critical survey is made of selected basic data on those aqueous solutions needed to model geothermal energy utilization. The data are useful in the design and construction of power plants and for direct use. The result of the survey is given as a current status of data. More emphasis is placed on the viscosity, thermal conductivity ...

This is an early survey and analysis of the types and quantities of solid toxic wastes to be expected from geothermal power systems, particularly at the Salton Sea, California. It includes a literature search (48 references/citations), descriptions of methods for handling wastes, and useful quantitative values. It also includes consideration of reclaiming ...

Shallow (2-m) soil temperature data have been collected at 27 sites at Long Valley, California, and at 102 sites at Coso, California. These geothermal areas are locations where traditional deep reconnaissance geothermal survey bore holes have been emplace...

Geothermal power plants in the south Pacific area were surveyed including New Zealand, the Philippines and Indonesia. The geologic characteristics of the fields are described along with wellflow particulars, energy conversion systems, environmental impacts, economic factors and operating experiences, where available. The geothermal ...

Some general background information concerning the geology and geothermal occurrences in the Southern Coast Ranges is included, as well as the more detailed information dealing with the Paso Robles area proper. Results for two geophysical methods that have been used in the area: the ground magnetic and gravity surveys, are discussed and interpreted.

For the geothermal exploration in the Okushiri area, surveys on the following were conducted and the detailed data were reported: the ground, heat flow rate, test boring, geothermal water, environmental effects, comprehensive analysis, etc. The geological...

With increased emphasis on geothermal development new exploration methods are needed in order to improve general understanding of geothermal reservoirs, characterize their extent and assess the potential for sustainable power production. Monitoring of acoustic emissions within geothermal areas may provide a new tool to evaluate the ...

The State of Hawaii has conducted several surveys on public opinion towards the development of geothermal energy. The latest poll was designed to: measure public opinion in the County of Hawaii relevant to geothermal development for electrical power supplied to Island of Hawaii residents only; measure public opinion in the County of ...

The Organic Act of 1879 (43 USC 31) that established the US Geological Survey provided, among other things, for the classification of the public lands and for the examination of the geological structure, mineral resources, and products of the national domain. In order to provide uniform executive action in classifying public lands, standards for determining which lands are ...

The Organic Act of 1879 (43 U.S.C. 31) that established the U.S. Geological Survey provided, among other things, for the classification of the public lands and for the examination of the geological structure, mineral sources, and products of the national domain. In order to provide uniform executive action in classifying public lands, standards for determining which lands are ...

An attempt to test the geothermal-groundnoise hypothesis--that is: geothermal reservoirs are dynamic systems and can be located by measuring ground motion above them--resulted in extensive groundnoise surveys in two areas which appear to have great geothermal potential. These surveys were ...

The author distinguishes between geothermal resource base, accessible geothermal resource base, geothermal resource, and geothermal reserve. Conditions for periodically updating the assessment of geothermal energy resources include: increased data from expanded exploration and drilling; ...

An historical account is presented of the conduct of a major geothermal energy project on the island of Hawaii. Attention is given to the geophysical surveys and engineering and environmental-socioeconomic studies conducted at the outset, the mechanical principles of the vapor flashing and binary flashing plant design alternatives considered, the choice of ...

GEOTHERM is a computerized geothermal resources file developed by the U.S. Geological Survey. The file contains data on geothermal fields, wells, and chemical analyses from the United states and international sources. The General Information Processing System (GIPSY) in the IBM 370/155 computer is used to store ...

A survey is made of commercially available methods currently in use as well as those which might be used to prevent scaling and corrosion in geothermal brines. More emphasis is placed on scaling. Treatments are classified as inhibitors, alterants and coag...

The identification, generation, and utilization of geothermal energy on the island of Hawaii are discussed. Overviews of four separate research programs are presented. The Geophysical Program's research tasks include a photogeologic survey, an electromagn...

This report presents data on the distribution and status of forest bird species found within the vicinity of proposed geothermal resource development on the Island of Hawaii. Potential impacts of the proposed development on the native bird populations found in the project are are addressed.

A preliminary assessment of the potential applications for geothermal energy in Riverside, California, was made. This assessment includes both potential electrical and non-electrical applications, and focuses on the following factors: the location of near...

Federal, State, and local environmental laws and regulations that apply to geothermal energy development are summarized. Most attention is given to those regulations which deal with air pollution, water pollution, solid wastes and impact assessments. Analyses are made of the regu...

Geophysical Studies of the Crump Geyser Known Geothermal Resource Area, Oregon, in 1975 [USGS_OFR_2006_1110] The U.S. Geological Survey (USGS) conducted ...

Benchmark networks have been installed around each of the US Department of Energy geopressured-geothermal test sites in southwestern Louisiana. These networks are periodically surveyed to detect subsidence which may be attributable to depressurization of ...

Ninety-eight geothermal wells and springs were identified and plotted, and a geologic map and cross sections were compiled. Detailed geophysical, geochemical, and geological surveys were conducted. The geological and geophysical work delineated the baseme...

Preliminary survey experiments conducted at the LLL Salton Sea Geothermal Test Site in April and May, 1977 are reported. The addition of caustic to raise the brine pH to approximately 6 precipitated silica and other materials. The addition of flocculating...

The Coso geothermal area, located primarily within the test ranges of the Naval Weapons Center, China Lake, Calif., is an area of granitic rock exposure and fracture-controlled explosion breccias and perlitic domes. Fumarolic and hot springs activity are ...

A geothermal assessment of six previously identified sites in Honduras has been conducted by a team comprised of staff from the Los Alamos National Laboratory, the US Geological Survey, and the Empresa Nacional de Energia Electrica. The application of bot...

The Raft River Geothermal Site has been evaluated over the past eight years by the United States Geological Survey and the Idaho National Engineering Laboratory as a moderate-temperature geothermal resource. The geoscience data gathered in the drilling an...

Seismic refraction and electrical resistivity surveys have been conducted in the Salton Sea Geothermal Field. The resistivity data are used to infer the boundaries of a reservoir of saline fluid. One lateral boundary closely coincides with a fault that was located by seismic refraction.

Preliminary geological, geochemical, and geophysical field surveys have been conducted on Mokapu Peninsula on the island of Oahu in an effort to determine whether sufficient indications of geothermal potential exist within or adjacent to the peninsula to ...

A regional geothermal resource assessment has been conducted for the major islands in the Hawaiian chain. The assessment was made through the compilation and evaluation of the readily accessible geological, geochemical, and geophysical data for the Hawaii...

An overview of the first five years of the Hawaiian Geothermal Project and a brief report of the management and coordination activity are presented. The first three phases are: exploratory surveys, experimental drilling, and well testing and analysis. A list of publications and a chronology of events are included. (MHR)

This map shows identified hydrothermal convection systems, igneous systems, low temperature geothermal waters, regional heat flow, and KGRA's. (MHR)

This map shows identified hydrothermal convection systems, igneous systems, low-temperature geothermal waters, heat flow data, and KGRA's. (MHR)

In 1979, a program was initiated to delineate the geological features controlling the occurrence of geothermal resources in Colorado. In the Ouray area, this effort consisted of geological mapping, soil mercury geochemical surveys and resistivity geophysi...

Search USGS Alaska Science Center U.S. Geological Survey Professional Paper 1732-B Geothermal Disruption of Summit Glaciers at Mount Spurr Volcano, 2004-6: An Unusual...

In February 1981, the Utah geological and Mineral Survey (UGMS) contracted with the Department of Energy (DOE) to evaluate the geothermal potential of an area proposed for a possible Missile Experimental (MX) operations base in the Escalante Valley region...

Geology and alteration of the Coso geothermal area were mapped in conjunction with geophysical surveys and a deep drill test (CGEH-1) to facilitate selection of a follow-up drill site. The oldest rocks exposed at Coso are intermediate to mafic metamorphic...

Geoelectric reconnaissance surveys were performed on Hawaii Island to locate areas of low resistivity that might have the potential for commercial geothermal development. The lower northeast end of the Kilauea East Rift Zone has low resistivities (less th...

Geophysical Studies of the Crump Geyser Known Geothermal Resource Area, Oregon, in 1975 [USGS_OFR_2006_1110] The U.S. Geological Survey (USGS) conducted ...

Water chemistry, gas analyses, and geophysical methods including gravity and magnetic surveys, microseismic monitoring, and temperature gradient measurements were used in the Capital District area to evaluate the potential for a hydrothermal geothermal sy...

As part of the task of evaluating the geothermal potential of naval installations throughout the world, Range Bravo 17 and the Shoal Site, both located at the Naval Air Station, Fallon, Nev., were evaluated. An aeromagnetic survey was conducted; seismic r...

This document covers the activities of monitoring environmental aspects at designated geothermal wells in Texas and Louisiana during the second quarter of 1990 by the Louisiana Geological Survey, Louisiana State University under contract with US DOE. 1 fig. (FSD)

A series of deep electrical resistivity soundings have been conducted in the northeastern Golan Heights as part of the geothermal project in Israel. This area which includes a large number of Tertiary volcanic cones is considered to be one of the most pro...

As part of its effort to more accurately describe the nations geothrmal resource potential, the US Department of Energy/Division of Geothermal Energy contracted with the Colorado Geological survey to appraise the hydrothermal (hot water) geothermal resour...

...well to determine: (1) The well's mechanical integrity...gases; (3) Presence of geothermal resources, water, or reservoir...4) Quality and quantity of geothermal resources; (5) Well bore angle and direction...

Acronyms of Organizations AAAS American Association for the Advancement of Science AAPG American Association of Petroleum Geologists ACS American Chemical ...

In Candidate C area for the geothermal development survey, the natural environment was surveyed and 'the secondary landscape assessment' was summed up in which places proposed for drilling of large-size wells and for construction of power generation facil...

During 1972 and 1973 the U. S. Geological Survey (U. S. G. S.) conducted detailed geological, geophysical, hydrological, and geochemical investigations in Long Valley, California, as part of a new geothermal research program. The goal of these investigations was to understand a typical hot water geothermal system, thus providing a ...