Final report - Magma Energy Research Project

Colp, J.L.

doi:10.2172/6588943

Cited by 9 publications

(4 citation statements)

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“…The resulting core (<20% recovery) was analyzed by Macdonald and Katsura [1961] and Richter and Moore [1966]. Later drilling operations carried out by the USGS in 1967USGS in , 1975USGS in , 1976USGS in , 1979USGS in , 1981USGS in , and 1988 [Colp, 1982;Hardee, 1988]. All 23 holes penetrated the thickening upper crust (Figure 3b), several of the later holes passed through the thermal maximum, and three passed completely through the partially molten core of the lake.…”

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confidence: 99%

“…defined the edges of the magma layer to be near nails N11 and S7 along the minor axis of the lake, and nails 7 and 29 along the major axis in 1976 (refer toFigure 3). In 1980 the boundaries were near N9 and S5 [Herrnance andColp, 1982], suggesting an overall shrinking inward of the conductive magma lens, although no change was detected near the western end of the lake.Comparison of Geophysical Results to Direct GeologicalObservations Four factors are expected to have major effects on seismic velocity within the lava lake: temperature, fracture presence and content, melt presence, and vesicle presence within the melt. Temperature dependence of seismic velocity in solid basalts has been studied empirically [e.g., Murase and McBirney, 1973; Kroenke et al, 1976], although results are uncertain for temperatures just below the solidus.…”

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confidence: 99%

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The magma body at Kilauea Iki lava lake: Potential insights into mid‐ocean ridge magma chambers

Barth¹,

Kleinrock²,

Helz³

1994

J. Geophys. Res.

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Although geological and geophysical measurements at active ridges have provided indirect samples and remote images and ophiolites have provided fossil evidence, the lack of direct sampling of in situ physical and chemical properties severly hinders our understanding of subsurface magmatic systems at mid‐ocean ridges. In contrast with the ridge setting, substantial information has been gained from direct sampling of Kilauea Iki lava lake. We reanalyze time series physical and petrological data from both in situ sampling and remote seismic and electromagnetic imaging of this lava lake in order to gain insights into the evolution of an enclosed basaltic magma body with many characteristics similar to a mid‐ocean ridge magma chamber. Although the analogy is imperfect, our analysis of observations from Kilauea Iki suggests that at a mid‐ocean ridge (1) a fine structure exists at the top of the magma body in the form of horizontal segregation veins (i.e., sills), (2) sustained convection within the magma chamber is highly unlikely, (3) a “dry‐out” zone above the magma body and below the deepest penetration of hydrothermal circulation may exist, (4) with high magma supply (e.g., the East Pacific Rise), where quasi steady state melt zones are present, the magma chamber must be completely replenished very frequently (at least every 300–600 years), and (5) the onset of rigid behavior of the basaltic partial melt does not happen at a unique “critical” crystal fraction. These results also show that significant differences may occur in interpretation of the rheology of a magmatic system depending upon the type of petrologic, seismic, or drilling data analyzed.

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confidence: 99%

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confidence: 99%

The magma body at Kilauea Iki lava lake: Potential insights into mid‐ocean ridge magma chambers

Barth¹,

Kleinrock²,

Helz³

1994

J. Geophys. Res.

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“…The Magma Energy project of the U.S. Department of Energy began in the summer of 1973 with a proposal to the Atomic Energy Commission that the magma energy concept be studied as an alternative energy technology (Colp, 1982 Department of Energy. Total funds expended over these years amounted to $ 4 .…”

Section: Project Historymentioning

confidence: 99%

“…In addition, field investigations were pursued in and around the Kilauea Iki lava lake, a pit crater filled with lava from the 1 9 5 9 eruption of Kilauea Volcano, Hawaii. These investigations included seismic and electrical experiments to detect the presence of melt, temperature measurements, and petrologic analysis of cores recovered from small-scale drilling experiments (Colp, 1982 The experiments demonstrated that high rates of energy extraction could be achieved and that the effective heat transfer area in the magma zone could be increased with time as the zone solidified and thermally fractured (Dunn, 1981;Hardee et al, 1981).…”

Section: Project Historymentioning

confidence: 99%

Science guide for the Long Valley Caldera deep hole

Rundle¹,

Eichelberger²

1989

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Geothermal Resources and Technology: Introduction

Blair

2015

Mechanical Engineers' Handbook

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Geothermal resources are traditionally divided into the following three basic categories or types: 1. Hydrothermal convection systems, which include thermal aquifers that are so‐called vapor‐dominated or liquid‐dominated systems. 2. Hot igneous resources, which include hot dry rock and geologic magna systems. 3. Conduction‐dominated resources, which include geopressured and radiogenic resources. This chapter discusses provisional estimates of the power generation potential of a number of unconventional resource locations in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming that are potentially suitable for so‐called Enhanced Geothermal Systems (EGS) technology. A variety of technologies are in current use to convert geothermal energy to useful forms. These can very generally be grouped into three basic categories: (1) direct use, (2) electric power generation, and (3) geothermal heat pumps. Each category utilizes the geothermal resource in a very different way.

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Final report - Magma Energy Research Project

Abstract: Distribution Category UC-66

Cited by 9 publications

References 20 publications

The magma body at Kilauea Iki lava lake: Potential insights into mid‐ocean ridge magma chambers

The magma body at Kilauea Iki lava lake: Potential insights into mid‐ocean ridge magma chambers

Science guide for the Long Valley Caldera deep hole

Geothermal Resources and Technology: Introduction

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