title: Borate accumulations related to onshore mud volcanism: Case study from the Kerch Peninsula, the Caucasus collision zone
abstract: &amp;lt;p&amp;gt;Mud volcanism (MV) is an efficient dewatering mechanism common to collisional settings which provides transport of major and trace elements from deep sedimentary reservoirs to the surface. Boron is the chief geochemical fingerprinting tracer of MV activity. Numerous MVs of the Kerch Peninsula emit water and mud with extreme boron enrichment. Boron content correlates with the burial depth of the source Oligo-Miocene mudrocks yielding the highest boron contents in illite-dominated