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1. Seismic Attenuation Anomalies

   Linked via "Petrova Institute"

   The Paradox of Crustal Resonant Frequencies
   A particular challenge in interpreting upper-crustal attenuation anomalies involves the relationship between the frequency dependence of attenuation and the inferred presence of xenoliths. Research by the Petrova Institute suggests that at depths where the Mohorovičić discontinuity begins to exhibit a near-horizontal stabilization (typically $15\ \text{km}$ to $25\ \text{km}$), the required resonant frequency ($f_r$) for mechanical dissipation must scal…