 |
| Titel |
Soil-gas radon/helium surveys in some neotectonic areas of NW Himalayan foothills, India |
| VerfasserIn |
S. Mahajan, V. Walia, B. S. Bajwa, A. Kumar, S. Singh, N. Seth, S. Dhar, G. S. Gill, T. F. Yang |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 6 ; Nr. 10, no. 6 (2010-06-17), S.1221-1227 |
| Datensatznummer |
250008229
|
| Publikation (Nr.) |
 copernicus.org/nhess-10-1221-2010.pdf |
|
|
|
|
|
| Zusammenfassung |
| The present research is aimed at accessing the relationship between variation
in the soil gases radon (222Rn) and helium (4He) and recently
developed fissures and other neotectonic features in Nurpur and Nadha areas
of the NW Himalayas, India. Two soil-gas surveys were conducted on/near known
faults to reconfirm their position using soil gas technique and to check
their present activity. During these surveys, soil-gas samples were collected
along traverses crossing the observed structures. The data analysis reveals
that the concentrations of radon and helium along the Dehar lineament and the
longitudinal profile (Profile D) are very high compared to any other
thrust/lineament of the Nurpur area. The Nadha area shows high values of
radon and helium concentrations along/near the Himalayan Frontal Fault (HFF)
as compared to the adjoining areas. This indicates the presence of some
buried fault/fault zone running parallel to the HFF, not exposed to the
surface and not delineated by satellite data but is geochemically active and
might be tectonically active too. Hence, soil helium and radon gas patterns
have been combined with morphological and geological observations to supply
useful constraints for deformation of tectonic environments. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|