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• 11. [Image] The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon

  	ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162)
  	Citation × Citation Citation Abstract Copy Title: The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon Author: Zeigler, Robert S. Year: 1978, 2009 ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162) Title: The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon Author: Zeigler, Robert S. Year: 1978, 2009 ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162) Close

• 12. [Image] Geothermal Exploration of the Puga and Chumathang Geothermal Fields, Ladakh, India

  	Puga and Chumathang Geothermal fields are situated near the collided junction of the Indian and Asian Crystal plates and thermal activity in these fields is attributed to the widespread igneous activity ...
  	Citation × Citation Citation Abstract Copy Title: Geothermal Exploration of the Puga and Chumathang Geothermal Fields, Ladakh, India Author: Shanker, R. Puga and Chumathang Geothermal fields are situated near the collided junction of the Indian and Asian Crystal plates and thermal activity in these fields is attributed to the widespread igneous activity of Upper Cretaceous to late Tertiary age. A deep suture zone, recognised in between these two fields and the associated faults provide channels for the upward migration of the thermal fluids. High concentrations of Cl, F, Si02, B, Na, Li, Rb, Cs in thermal fluids signify contribution of magmatic bodies towards heat, and fluid supply. These fields are characterized by high heat flow conditions (13 HFU), abnormal shallow geothermal gradients (0.7 - 2.5 c/m) , high base temperature (220 - 270 C) as obtained by alkalia and Ne-K-Ca geothermometry and low resistivity values (2-20 ohm.m.). Low resistivity zones occupy on an area of three and one sq.km. and extend down to maximum depths of 300 m. and 130 m. at Puga and Chumathang respectively. Shallow drilling (28-130 m.) has established the existence of wet steam reservoirs under moderate pressure (2-4.5 kg/cm^2). Hot fluid (95-135 C) discharges from eight flowing wells ranged from 7.5 to 30 t/h. These thermal fluids are stored in the partly consolidated fluvioglacial deposits of Quarternary to Recent age. The occurrence of a limestone layer in the country rock at Puga brightens the prospects of getting good reservoir at depth. In both these fields two aquifers have been recognised, each having sizeable potential for retaining ground water. The ground water recharge is mainly through snow melt from glaciers in the case of Puga field and principally from Indus river in the case of Chumathangfield Title: Geothermal Exploration of the Puga and Chumathang Geothermal Fields, Ladakh, India Author: Shanker, R. Puga and Chumathang Geothermal fields are situated near the collided junction of the Indian and Asian Crystal plates and thermal activity in these fields is attributed to the widespread igneous activity of Upper Cretaceous to late Tertiary age. A deep suture zone, recognised in between these two fields and the associated faults provide channels for the upward migration of the thermal fluids. High concentrations of Cl, F, Si02, B, Na, Li, Rb, Cs in thermal fluids signify contribution of magmatic bodies towards heat, and fluid supply. These fields are characterized by high heat flow conditions (13 HFU), abnormal shallow geothermal gradients (0.7 - 2.5 c/m) , high base temperature (220 - 270 C) as obtained by alkalia and Ne-K-Ca geothermometry and low resistivity values (2-20 ohm.m.). Low resistivity zones occupy on an area of three and one sq.km. and extend down to maximum depths of 300 m. and 130 m. at Puga and Chumathang respectively. Shallow drilling (28-130 m.) has established the existence of wet steam reservoirs under moderate pressure (2-4.5 kg/cm^2). Hot fluid (95-135 C) discharges from eight flowing wells ranged from 7.5 to 30 t/h. These thermal fluids are stored in the partly consolidated fluvioglacial deposits of Quarternary to Recent age. The occurrence of a limestone layer in the country rock at Puga brightens the prospects of getting good reservoir at depth. In both these fields two aquifers have been recognised, each having sizeable potential for retaining ground water. The ground water recharge is mainly through snow melt from glaciers in the case of Puga field and principally from Indus river in the case of Chumathangfield Close

• 13. [Image] Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon

  	The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several ...
  	Citation × Citation Citation Abstract Copy Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Close

• 14. [Image] The Economics of America's Energy Future

  	The U. S. will not only have to increase supplies of conventional fuels and take determined conservation measures, but will also have to coax gas and even synthetic crude oil from the abundant reserves ...
  	Citation × Citation Citation Abstract Copy Title: The Economics of America's Energy Future Author: Simmons, H. Year: 1975 The U. S. will not only have to increase supplies of conventional fuels and take determined conservation measures, but will also have to coax gas and even synthetic crude oil from the abundant reserves of coal. It may have to extract crude oil from oil shale in the West. There is the possibility in some areas that geothermal power could be tapped on a broad scale and that the sun and winds could be harnessed in a variety of ingenious ways to meet a significant share of the energy requirement. Nuclear power will need to be accelerated including the use of new and more efficient types of reactors. We will also need to develop thermonuclear fusion reactors which would be fueled ultimately by virtually inexhaustible heavy hydrogen in seawater. More efficient processes to convert energy to useful power will be necessary. There will also have to be a sharp improvement in the efficiency of using energy, and this calls for smaller automobiles, better insulation for buildings, refrigerators and air conditioners that provide more cooling per kilowatt-hour, and even pots and pans that capture more heat from the gas ring on the stove. The U. S. will not return to its golden age of energy even if it uses all these measures and even if many of them succeed. Energy can no longer be as cheap or abundant as it has been in the past. At the same time, the end of the golden age does not mean an end to the American dream of a life of dignity and opportunity for all. We may discover that these objectives are not embodied in 300-horsepower automobiles or centrally air-conditioned homes. Perhaps our life-style may be altered by harsh new facts of energy scarcity and significantly higher costs in the marketplace, but our national character and particularly the adaptive and "can-do" qualities that have served us so well in the past will be major intangible assets in coping with our energy problems Title: The Economics of America's Energy Future Author: Simmons, H. Year: 1975 The U. S. will not only have to increase supplies of conventional fuels and take determined conservation measures, but will also have to coax gas and even synthetic crude oil from the abundant reserves of coal. It may have to extract crude oil from oil shale in the West. There is the possibility in some areas that geothermal power could be tapped on a broad scale and that the sun and winds could be harnessed in a variety of ingenious ways to meet a significant share of the energy requirement. Nuclear power will need to be accelerated including the use of new and more efficient types of reactors. We will also need to develop thermonuclear fusion reactors which would be fueled ultimately by virtually inexhaustible heavy hydrogen in seawater. More efficient processes to convert energy to useful power will be necessary. There will also have to be a sharp improvement in the efficiency of using energy, and this calls for smaller automobiles, better insulation for buildings, refrigerators and air conditioners that provide more cooling per kilowatt-hour, and even pots and pans that capture more heat from the gas ring on the stove. The U. S. will not return to its golden age of energy even if it uses all these measures and even if many of them succeed. Energy can no longer be as cheap or abundant as it has been in the past. At the same time, the end of the golden age does not mean an end to the American dream of a life of dignity and opportunity for all. We may discover that these objectives are not embodied in 300-horsepower automobiles or centrally air-conditioned homes. Perhaps our life-style may be altered by harsh new facts of energy scarcity and significantly higher costs in the marketplace, but our national character and particularly the adaptive and "can-do" qualities that have served us so well in the past will be major intangible assets in coping with our energy problems Close

• 15. [Image] Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA

  	The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR)
  	Citation × Citation Citation Abstract Copy Title: Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA Author: Brown, F.H. Year: 1977 The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR) Title: Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA Author: Brown, F.H. Year: 1977 The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR) Close

• 16. [Image] Geophysical Lineaments of Arizona

  	Photolineaments seen on satellite images are usually expressions of deep crustal ruptures. However, photolineaments are omnipresent and an independent expression of regional discontinuities is needed to ...
  	Citation × Citation Citation Abstract Copy Title: Geophysical Lineaments of Arizona Author: Lepley, L.K. Year: 1979 Photolineaments seen on satellite images are usually expressions of deep crustal ruptures. However, photolineaments are omnipresent and an independent expression of regional discontinuities is needed to help rank the photolineaments. Published gravity and magnetic contour maps of Arizona were analyzed to produce a single geophysical lineament map to indicate trends of regional basement structures. This map shows that the southwestern quarter of Arizona is dominated by a NNW-ENE orthogonal system whereas the remainder of the state is gridded by a NW-NE system. North-south systems are present throughout the state, as are EW lineaments. Arizona is transected by the WNW Texas Strand, but other shorter systems trending in the Texas direction are found throughout the state south of the Strand. The major lineament systems as seen on Landsat, gravity, and magnetic maps correlate reasonably Well with known geothermal manifestations. Many other systems are Precambrian, Paleozoic, and/or Mesozoic in age but appear to control the location of Quaternary Volcanic systems Title: Geophysical Lineaments of Arizona Author: Lepley, L.K. Year: 1979 Photolineaments seen on satellite images are usually expressions of deep crustal ruptures. However, photolineaments are omnipresent and an independent expression of regional discontinuities is needed to help rank the photolineaments. Published gravity and magnetic contour maps of Arizona were analyzed to produce a single geophysical lineament map to indicate trends of regional basement structures. This map shows that the southwestern quarter of Arizona is dominated by a NNW-ENE orthogonal system whereas the remainder of the state is gridded by a NW-NE system. North-south systems are present throughout the state, as are EW lineaments. Arizona is transected by the WNW Texas Strand, but other shorter systems trending in the Texas direction are found throughout the state south of the Strand. The major lineament systems as seen on Landsat, gravity, and magnetic maps correlate reasonably Well with known geothermal manifestations. Many other systems are Precambrian, Paleozoic, and/or Mesozoic in age but appear to control the location of Quaternary Volcanic systems Close

• 17. [Image] Klamath Project annual history, 1949

  	Ill., maps (some color), photographs; Includes fiscal year financials, photographs, maps, crop and livestock yields, irrigation and drainage and irrigation pumping plant operations, WPA camp maintenance, ...
  	Citation × Citation Citation Abstract Copy Title: Klamath Project annual history, 1949 Author: United States. Bureau of Reclamation Year: 1949, 2008 Ill., maps (some color), photographs; Includes fiscal year financials, photographs, maps, crop and livestock yields, irrigation and drainage and irrigation pumping plant operations, WPA camp maintenance, etc.; Title covers: calendar years for 1949 - 1952; Description is based on: Klamath Project annual history for 1949; Dates of the beginning year(s) of publication are derived from May 1, 1903 to December 31, 1912, History of the Klamath Project and from the volume information on later volumes (v. 35) Klamath District and Klamath Project Annual history for 1945, dated December 1, 1946 Title: Klamath Project annual history, 1949 Author: United States. Bureau of Reclamation Year: 1949, 2008 Ill., maps (some color), photographs; Includes fiscal year financials, photographs, maps, crop and livestock yields, irrigation and drainage and irrigation pumping plant operations, WPA camp maintenance, etc.; Title covers: calendar years for 1949 - 1952; Description is based on: Klamath Project annual history for 1949; Dates of the beginning year(s) of publication are derived from May 1, 1903 to December 31, 1912, History of the Klamath Project and from the volume information on later volumes (v. 35) Klamath District and Klamath Project Annual history for 1945, dated December 1, 1946 Close

• 18. [Image] Investigation and evaluation of geopressured-geothermal wells. Fairfax Foster Sutter No. 2 well, St. Mary Parish, Louisiana. Volume I. Completion and testing. Final report

  	The Fairfax Foster Sutter No. 2 well, located in the East Franklin area of St. Mary Parish, Louisiana, is the first successful test of a geopressured-geothermal aquifer under the Well-of-Opportunity program. ...
  	Citation × Citation Citation Abstract Copy Title: Investigation and evaluation of geopressured-geothermal wells. Fairfax Foster Sutter No. 2 well, St. Mary Parish, Louisiana. Volume I. Completion and testing. Final report Author: Willits, M.H. Year: 1979 The Fairfax Foster Sutter No. 2 well, located in the East Franklin area of St. Mary Parish, Louisiana, is the first successful test of a geopressured-geothermal aquifer under the Well-of-Opportunity program. The section tested was the MA-6 sand of lower Miocene age which has produced large quantities of gas from the adjacent but structurally separated Garden City field. In the subject well the observed temperature was 270{sup 0}F (132{sup 0}C) and the measured gradient was 0.77 psi/ft. The gross sand thickness was 270 feet, the net sand thickness 190 feet, and the tested interval 58 net feet. The temperatures and pressures encountered approached the limits of the surface-recording bottomhole pressure gauge and particularly the single-conductor cables on which the gauges were run. The objectives of the tests were all accomplished, and data were obtained which will contribute to the overall assessment of the geopressured-geothermal resource of the Upper Gulf of Mexico basin. In general, the gas solubility (22.8 scf/bbl) was as expected for the temperature, pressure, and salinity of the brine. The produced water was more saline than expected (160,000 mg/l). The high concentrations of dissolved solids, coupled with the evolution of CO{sub 2} from these waters during production, created a scaling problem in the tubular goods and surface equipment that will have to be addressed in future tests; DOE/ET/28460-1 Title: Investigation and evaluation of geopressured-geothermal wells. Fairfax Foster Sutter No. 2 well, St. Mary Parish, Louisiana. Volume I. Completion and testing. Final report Author: Willits, M.H. Year: 1979 The Fairfax Foster Sutter No. 2 well, located in the East Franklin area of St. Mary Parish, Louisiana, is the first successful test of a geopressured-geothermal aquifer under the Well-of-Opportunity program. The section tested was the MA-6 sand of lower Miocene age which has produced large quantities of gas from the adjacent but structurally separated Garden City field. In the subject well the observed temperature was 270{sup 0}F (132{sup 0}C) and the measured gradient was 0.77 psi/ft. The gross sand thickness was 270 feet, the net sand thickness 190 feet, and the tested interval 58 net feet. The temperatures and pressures encountered approached the limits of the surface-recording bottomhole pressure gauge and particularly the single-conductor cables on which the gauges were run. The objectives of the tests were all accomplished, and data were obtained which will contribute to the overall assessment of the geopressured-geothermal resource of the Upper Gulf of Mexico basin. In general, the gas solubility (22.8 scf/bbl) was as expected for the temperature, pressure, and salinity of the brine. The produced water was more saline than expected (160,000 mg/l). The high concentrations of dissolved solids, coupled with the evolution of CO{sub 2} from these waters during production, created a scaling problem in the tubular goods and surface equipment that will have to be addressed in future tests; DOE/ET/28460-1 Close

• 19. [Image] Hawaii Geothermal Resource Assessment Program: western state cooperative direct heat resource assessment, Phase I. Final report

  	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, ...
  	Citation × Citation Citation Abstract Copy Title: Hawaii Geothermal Resource Assessment Program: western state cooperative direct heat resource assessment, Phase I. Final report Year: 1978 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 Hawaiian archipelago which has been acquired during the last two decades. The geologic criteria used in the identification of possible geothermal reservoirs were: age and location of most recent volcanism on the island and the geologic structure of each island. The geochemical anomalies used as traces for geothermally altered ground water were: elevated silica concentrations and elevated chloride/magnesium ion ratios. Geophysical data used to identify subsurface structure which may have geothermal potential were: aeromagnetic anomalies, gravity anomalies, and higher than normal well and basal spring discharge temperatures. Geophysical and geochemical anomalies which may be the result of subsurface thermal effects have been identified on the islands of Hawaii, Maui, Molokai and Oahu; DOE/ID/01713-4 Title: Hawaii Geothermal Resource Assessment Program: western state cooperative direct heat resource assessment, Phase I. Final report Year: 1978 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 Hawaiian archipelago which has been acquired during the last two decades. The geologic criteria used in the identification of possible geothermal reservoirs were: age and location of most recent volcanism on the island and the geologic structure of each island. The geochemical anomalies used as traces for geothermally altered ground water were: elevated silica concentrations and elevated chloride/magnesium ion ratios. Geophysical data used to identify subsurface structure which may have geothermal potential were: aeromagnetic anomalies, gravity anomalies, and higher than normal well and basal spring discharge temperatures. Geophysical and geochemical anomalies which may be the result of subsurface thermal effects have been identified on the islands of Hawaii, Maui, Molokai and Oahu; DOE/ID/01713-4 Close

• 20. [Image] Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon

  	The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several ...
  	Citation × Citation Citation Abstract Copy Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Close