Retrograde mica in deep crustal granulites: Implications for crustal seismic anisotropy
نویسندگان
چکیده
منابع مشابه
Seismic evidence for widespread deep crustal deformation caused by extension in the western US
Laboratory experiments have established that many earth materials are strongly anisotropic. Observations of azimuthal and radial anisotropy in the upper mantle are attributed to the lattice-preferred orientation (LPO) of olivine caused by the shear strains associated with deformation, and provide some of the most direct evidence for deformation and flow within Earth’s interior. Although observa...
متن کاملEstimating crustal seismic anisotropy with a joint analysis of radial and transverse receiver function data
S U M M A R Y We developed an integrated technique for estimating crustal anisotropy with a horizontal axis using radial (R) and transverse (T) receiver functions. The technique includes computing three individual and one joint objective function (JOF) and a reliability analysis of the estimated anisotropy. The individual objective functions (IOFs) are designed to: (1) maximize the peak energy ...
متن کاملComparing crustal and mantle fabric from the North American craton using magnetics and seismic anisotropy
Article history: A central target in Earth s Received 22 July 2008 Received in revised form 27 October 2008 Accepted 29 October 2008 Available online 6 December 2008 Editor: R.D. van der Hilst
متن کاملConstraining Crustal Anisotropy by Receiver Functions at the Deep Continental Drilling Site KTB in Southern Germany
As one of the rare observational tools for studying deformation and stress within the Earth, seismic anisotropy has been one of the focuses of geophysical studies over the last decade. In order to unravel the anisotropic properties of the crust, the teleseismic receiver functions (RF) methodology has started to be widely applied recently. Such effects of anisotropy on RF were illustrated in the...
متن کاملEvidence for ancient lithospheric deformation in the East European Craton based on mantle seismic anisotropy and crustal magnetics
Article history: We present new shear-wav Received 28 May 2008 Accepted 6 January 2009 Available online 19 January 2009
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2006
ISSN: 0094-8276
DOI: 10.1029/2006gl028130