Helium flux in a continental land area estimated from 3He/4He ratio in northern Taiwan

  title={Helium flux in a continental land area estimated from 3He/4He ratio in northern Taiwan},
  author={Yuji Sano and Hiroshi Wakita and Chinwang Huang},
The helium flux and its isotopic composition may provide useful information not only on the helium budget in the atmosphere but also on the uranium and thorium contents of the rocks in the Earth's crust and mantle and the generation of heat from radioactive decay of these elements. Data have been available from oceanic areas1–4, but those from continental areas are sparse5–7. We report here the 3He and 4He fluxes derived from measurement of the 3He/4He ratio of natural gases in the northern… 
Helium flux from the solid earth
Taking into account the 3He/4He ratio in pore water of Pacific deep sea sediments and the ratio variation with thickness of sedimentary layers in the continental crust area, we estimated 3He and 4He
Helium flux from a sedimentary basin.
  • N. Takahata, Y. Sano
  • Geology, Medicine
    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
  • 2000
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[1] The existing measures of the 4He flux from the Earth's continental solid surface have been evaluated collectively. The lognormal mean of continental crustal flux measurements (n = 33) globally
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Abstract Helium isotope measurements show that water on the crest and flanks of the East Pacific Rise has the highest enrichment in 3He so far observed in the oceans; the 3He/4He ratio anomaly
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The 3He/4He and 4He/20Ne ratios of 115 natural gas samples, including various types of gases from volcanoes, hot springs, mineral springs, water wells, petroleum fields, and natural gas fields, were
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The special position of helium among the elements has been recognized since the early days of radium. Like all the other noble gases (except the radiogenic Am), the maximum estimated abundance of
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An extensive plume of water enriched with helium-3 has been discovered in the deep Pacific Ocean at latitude 15�S on the East Pacific Rise. In the core of the plume, at a depth of 2500 meters over
Helium flux through marine sediments of the northeast Pacific Ocean
Abstract Quantitative determinations of helium and other noble gas concentrations in pore waters of marine sediments permit the calculation of helium fluxes out of the sedimentary column. Values of
Heat and helium in the Earth
Questions concerning the locations of possible chemical reservoirs and heat sources are closely tied to those of connvective motions in the Earth's interior. For example, if the continental crust and
Helium Flux from the Earth's Mantle as Estimated from Hawaiian Fumarolic Degassing
Averaged helium to carbon dioxide ratios measured from systematic collections of gases from Sulphur Bank fumarole. Kilauea, Hawaii, when coupled with estimates of carbon in the earth's crust, give a
Chemical compositions of natural gases in Japan
Chemical compositions of 96 natural gas samples from various locations and gas sources at 67 sampling sites in Japan were analyzed. A gas chromatograph system was developed for precise analyses of