SKS splitting in the Western Indian Ocean from land and seafloor seismometers: Plume, plate and ridge signatures

Upper mantle deformation beneath the North American–Pacific plate boundary in California from SKS splitting

[1] In order to constrain the vertical and lateral extent of deformation and the interactions between lithosphere and asthenosphere in a context of a transpressional plate boundary, we performed teleseismic shear wave splitting measurements for 65 permanent and temporary broadband stations in central California. We present evidence for the presence of two anisotropic domains: (1) one with clear...

the role of russia in transmission of energy from central asia and caucuses to european union

پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...

Anisotropy from SKS splitting across the Pacific-North America plate boundary offshore southern California

Joseph Ramsay,1 Monica D. Kohler,2 Paul M. Davis,1 Xinguo Wang,3,4 William Holt4 and Dayanthie S. Weeraratne5 1Department of Earth and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095-1596, USA 2Department of Mechanical and Civil Engineering, California Institute of Technology, Pasadena, CA 91125, USA. E-mail: [email protected] 3Key Laboratory of Continental Collisio...

Dynamics of the elevated land plume over the Arabian Sea and the Northern Indian Ocean during northeasterly monsoons and during the Indian Ocean experiment (INDOEX)

[1] We describe the dynamics of the formation of an elevated land plume over the Arabian Sea and northern Indian Ocean observed during the 1999 Indian Ocean Experiment (INDOEX). The presence of the elevated plume above the marine boundary layer for a depth of about 2000 m could be inferred from the thermodynamic profiles of the lower troposphere obtained from research vessels in 1997, 1998, and...

Upper mantle anisotropy beneath Peru from SKS splitting: Constraints on flat slab dynamics and interaction with the Nazca Ridge