Crustal thickness and poisson’s ratio variations across the northwest Himalaya and eastern Ladakh

• Autorzy: Hazarika D. , Kumar N. , Yadav D.
• Języki publikacji: EN

Abstrakty

EN

Crustal thickness and PoissonPoisson's ratios are estimated across the northwest (NW) Himalaya and eastern Ladakh applying H-k stacking method on receiver functions of teleseismic earthquakes recorded at 16 broadband seismological stations. The results show significant lateral variation of crustal thickness from the Lesser and Higher Himalaya (~50 km thick) to Ladakh (~80 km thick) through the Indus Tsangpo Suture Zone (ITSZ). The Indian Moho is continuously traceable across the ITSZ which is consistent with the underthrusting of the Indian plate beyond the surface collision boundary. The estimated Poisson's ratio is intermediate in the Tethyan Himalaya (0.269-0.273) and high beneath Ladakh (0.280-0.303), indicating the effect of aqueous fluid/partial melt present in the crust.

Słowa kluczowe

EN

NW Himalaya; crustal structure; receiver function; Poisson’s ratio

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2013
• Tom: Vol. 61, no. 4
• Strony: 905--922
• Opis fizyczny: Bibliogr. 32 poz.

Twórcy

autor

Hazarika D.

• Wadia Institute of Himalayan Geology, Dehradun, India

autor

Kumar N.

• Wadia Institute of Himalayan Geology, Dehradun, India

autor

Yadav D.

• Wadia Institute of Himalayan Geology, Dehradun, India

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