The interplay between regional beddingparallelįlow and focused circulation of fluids along steep faultsĪnd dipping layers, and the associated rock–fluid interactionsĪre not unique to the contractional settings presented but canĪlso occur in association with similar faults in rifted continental On the cave walls a continuous silica crust, rarely observed in other Stage of speleogenesis, silica deposition took over again depositing Rock cavities and in fractures and fault planes. These steep extensionalįractures made it possible for fluids flowing in lower, quartziticĪquifers to enter the carbonate aquifer causing silica deposition in Served as pathways for upward fluid flow. Layers, and steep 1–10-m-long (3.3–33.8-ft) fractures, which The deep strike-slip fault propagated upward causing theĭevelopment of an anticline pop-up, steepening sedimentary In our model, Mg-rich fluidsįlowing along the Salitre aquifer caused at the same time extensiveĭolomitization of the body of rock (100-m scale)Įxperiencing distributed deformation.
Gently dipping, semiductile shear zones formed with decimeterscale The SalitreĬarbonates in the MVC experienced distributed deformationĪlong an elongated domain overlying a buried strike-slip fault. With meteoric processes and is an example of a hypogenicĬave formed during strike-slip deformation. Morro Vermelho karst system, which affected Neoproterozoic
The Morro Vermelho Cave (MVC) (Brazil) developed within the
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