Helium isotope studies in seismically-active regions of Turkey and California

Date

2007-08-01

Author

Hilton, D. R.
De Leeuw, G.
Fueri, E.
Güleç, Nilgün Türkan
Mutlu, H.
Tryon, M. D.
Brown, K. M.

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https://hdl.handle.net/11511/55419

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Department of Geological Engineering, Conference / Seminar

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Helium isotope variations in Turkey: relationship to tectonics, volcanism and recent seismic activities Güleç, Nilgün Türkan; Mutlu, H (2002-07-01) The distribution of helium isotope ratios in the various tectonic provinces of Turkey is examined through a synthesis of previously published data and the results of a recent survey along the North Anatolian Fault Zone (NAFZ) following the catastrophic 1999 earthquakes. The R/R-A values (where R = sample He-3/He-4 and RA = air He-3/He-4) cover a wide range from 0.05 to 7.87, and the mantle-derived helium is clearly identified in most locations, The mantle-derived component is high (> 50% of total He) in (a)...
Helium and heat distribution in western Anatolia, Turkey: Relationship to active extension and volcanism Güleç, Nilgün Türkan (2004-04-01) Western Anatolia, one of the world's best-known extensional terrains, is characterized by the presence of several moderate- to high-enthalpy geothermal fields. Geothermal fluids have helium isotope compositions reflecting mixing between mantle and crustal helium components, the former ranging between 0.58% and 45% of the total helium in a given sample. Regarding the distribution of heat and mantle He and their correlation with tectonic structure and volcanism in western Anatolia, the prominent features are ...
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Citation Formats

D. R. Hilton et al., “Helium isotope studies in seismically-active regions of Turkey and California,” 2007, vol. 71, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55419.