Thursday, May 21, 2015 11:07 am

The Adak Geothermal Project is concerned with the use of geothermal energy as a possible alternative to the present fossil fuel energy system on Adak. Three different types of geothermal energy systems, each based on an assumed different reservoir temperature range, are considered.

(1) space heating using either above-ground insulated fiberglass pipelines or in-ground insulated steel pipelines, (2) direct electrical power generation using geothermal fluids either at a central power plant
or via individual wellhead generating units, either system producing 25 MWe gross output, or (3) a binary geothermal electrical power generation facility where the geothermal fluids would heat a secondary (binary) fluid which would operate the electrical generating equipment, producing a 25 MWe gross output.

The cost of each system was analyzed, and cost-effectiveness was determined by comparing the investment cost with projected fuel savings. Of all the alternate geothermal systems analyzed, the most attractive is the wellhead generating units.

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Thursday, May 21, 2015 11:07 am

Glacial hazard constraints, this publication is a part of the larger work PDF 86-60. Additional downloadable PDF's include: Map of glaciers above geothermal well site, scale 1:24,000.

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Thursday, May 21, 2015 11:07 am

Radar and thermal data collected by a high-altitude aircraft were used to study thermal anomalies and structural elements of the Pilgrim Springs, Alaska area. A large number of linears were detected from the imagery. Many of these linears represent fractures and/or faults (lineaments), some of which may possibly provide conduits for the emergence of hot water at the springs.

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Thursday, May 21, 2015 11:07 am

Information has been gathered on 13 reported thermal-spring sites, 12 in southern Southeastern Alaska and on in western British Columbia. Five of the reported sites could not be substantiated by DGGD. The eight known thermal spring sites are associated with granitic terrain and, except for Baker Island Hot Springs, occur within or near intensively fractured Cretaceous-age plutons of the Coast Range Batholith.

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Thursday, May 21, 2015 11:07 am

The purpose of the Surface Water Hydrology section is twofold: first, to
describe and generally define stream flow of Makushin Valley River basin streams, especially those that could receive geothermal wastewater. Second, to assess the flow, channel, and basin characteristics of streams adjacent to potential road or transmission line corridors in the Makushin Valley.
Stream flow information is necessary for power plant and facility siting, as well as for water quality analyses. Facility construction can have
deleterious impacts on the natural stream flow; on the other hand, floodwaters can seriously damage buildings, road, and transmission line towers. In addition, stream flow magnitude data are critical for assessing potential water chemistry and dilution effects if geothermal wastewater is routed to the streams. Data gathered in the field along with empirical methods are used to present hydrologic information that should prove helpful in future feasibility and design work. This publication is part of a larger work. Please see PDF 86-60 for more information.

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Thursday, May 21, 2015 11:07 am

Book about exploration and development of Alaska. Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb.

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Thursday, May 21, 2015 11:07 am

Research summary in Eos Transactions (of the AGU): Thermal studies on Augustine Volcano, Alaska. A thermal model was derived for a fumarole field at the base of a lava dome. The model is presented explaining observed temperature gradients in terms of coupled moisture, vapor and heat transport in a poruous medium.

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Thursday, May 21, 2015 11:07 am

Abstract: The only known hot spring in the Brooks Range was first visited by a scientific expedition in 1886. Ensign Reed of the U.S. Navy went to the spring by dog team in March of that year, and the visit was reported in Naval Explorations in Alaska, written by Lieutenant George M., Stoney and published by the U.S. Naval Institute In 1900. The location of the hot spring was obscure and, to the best of my knowledge, has not been mentioned in geological literature since then, except as a reference to the report by Stoney, which is quoted below.

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Thursday, May 21, 2015 11:07 am

Geology of Hot Springs Bay Valley Akutan Island, Alaska. This publication is part of a larger work. Please see RI 88-3 for more information see http://dggs.alaska.gov/pubs/id/2444.

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Thursday, May 21, 2015 11:07 am

In 1986 the Alaska Division of Geological and Geophysical Surveys assessed the coal, peat and geothermal potential of the Kuskokwim Area Plan, a 38,000 mi region in southwestern Alaska being studied by DNR.

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Thursday, May 21, 2015 11:06 am

Introduction and summary of geothermal investigations in Hot Springs Bay, Akutan, Alaska. This publication is part of a larger work. Please see RI 88-3 for more information at http://dggs.alaska.gov/pubs/id/2444.

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Thursday, May 21, 2015 11:06 am

Preliminary results of research at the active summit of Mt. Wrangell, Alaska (Abstract). The geothermal heat flux has increased Significanty at the summit of Mt. Wrangell since 1964. This has I resulted in melting over 22 million m3 of' ice from the North Crater of the summit caldera, an order of magnitude increase in the area of exposed rock, and a settling of the glacier surface of up to 160m. Field work at the summit in August 1975, included establistment or five ground control points for aerial photogrammetry , measurement of glacier flow and resurvey of the snow surface in the caldera and North Crater, measurement of temperatures and temoerature gradients in exposed ash and sand, and two 4m glaciological oit studies with cores extending below 10 m. Nearly continuous air temperature, wind, atmospheric pressure, and seismic data were obtained over a three week oeriod. Preliminary analysis of glacier flow data indicate an apparent increase in glacier velocity since 1965. Glaciological volcanological studies at the summit began in 1961.

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Wednesday, May 20, 2015 2:02 pm

Report by the geothermal program at the Applied Physics Laboratory of Johns Hopkins University to help determine whether geothermal energy from a shallow (3,000 ft.) well could be used for supplementing heating requirements at the Dover Air Force Base located in Dover, Delaware

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Wednesday, May 20, 2015 2:02 pm

Progress report on the geothermal potential for southern Delaware by focusing on the inclusion of additional gravity mapping, contouring gravity data, and some preliminary quantitative interpretations of gravity and magnetic data

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Wednesday, May 20, 2015 2:02 pm

The Gravity Map of Delaware and Surrounding Vicinity in Maryland and Virginia illustrates contoured gravity values for Delaware and parts of the adjacent vicinities of Maryland and Virginia. The map is georeferenced, but no legend is included. The gravity map is available for direct download as a PDF file through Virginia Tech. The document was provided by the Virginia Department of Mines, Minerals, and Energy - Division of Geology and Mineral Resources and made available for distribution through the National Geothermal Data System.

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