Browsing Ciencia e Investigación by Subject "Radiolarites"

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Characterization and tectonic implications of Mesozoic-Cenozoic oceanic assemblages of Costa Rica and Western Panama

Denyer, P.; Baumgartner, P. O.; Gazel, E. (Geologica Acta, 2006)

The Pacific face of Costa Rica and western Panama has been extensively studied because of the wide occurrence of oceanic assemblages. In Northern Costa Rica, the Santa Elena Nappe made by ultramafic and mafic associations ...
Emplacement of Jurassic-Lower Cretaceous radiolarites of the Nicoya Complex (Costa Rica)

Denyer, P.; Baumgartner, P. O. (Geologica Acta, 2006)

We present a new model to explain the origin, emplacement and stratigraphy of the Nicoya Complex in the NW part of the Nicoya Peninsula (Costa Rica) based on twenty-five years of field work, accompanied with the evolution ...
Evidence for middle Cretaceous accretion at Santa Elena Peninsula (Santa Rosa Accretionary Complex), Costa Rica

Baumgartner, P. O.; Denyer, P. (Geologica Acta, 2006)

An oceanic assemblage of alkaline basalts, radiolarites and polymictic breccias forms the tectonic substratum of the Santa Elena Nappe, which is constituted by extensive outcrops of ultramafic and mafic rocks of the Santa ...

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