Concepedia

J. A. Welhan

JA

Statistics

Publications

19

Citations

1.9K

H-Index

19

Active since

1977

Affiliations

Scripps Institution of Oceanography(Current)

Idaho State University

University of Waterloo

United States Geological Survey

Memorial University of Newfoundland

J. A. Welhan is an author at Scripps Institution of Oceanography specializing in engineering, earth science, and geochemistry.

Top concepts

EngineeringEarth ScienceGeochemistryGeologyOrganic GeochemistryVolcanologyMarine GeologyMarine ChemistryHydrogenHydrology

Publications per year

1977–2000

19

Publications

19

Origins of methane in hydrothermal systems

J. A. Welhan · Chemical Geology · 1988 · 375 citations

Organic Geochemistry, Engineering, Hydrothermal Systems +5

Methane and hydrogen in East Pacific Rise hydrothermal fluids

J. A. Welhan, H. Craig · Geophysical Research Letters · 1979 · 254 citations

Volcanology, Engineering, Marine Chemistry +18

Helium isotope ratios in Yellowstone and Lassen Park volcanic gases

H. Craig, J. E. Lupton, J. A. Welhan et al. · Geophysical Research Letters · 1978 · 207 citations

Geophysics, Mantle Geochemistry, Volcanic Gas Chemistry +12

Light Hydrocarbon Gases in Guaymas Basin Hydrothermal Fluids: Thermogenic Versus Abiogenic Origin

J. A. Welhan · AAPG Bulletin · 1987 · 176 citations

Hydrocarbon Gases, Volcanology, Engineering +16

The Isotopic Composition of Methane in Polar Ice Cores

H. Craig, Charles C.‐K. Chou, J. A. Welhan et al. · Science · 1988 · 113 citations

Organic Geochemistry, Biogeochemistry, Ice-water System +11

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