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pro vyhledávání: '"Monika M. Gursky"'
Autor:
Carl-Diedrich Sattler, Hans-Jürgen Gursky, Monika M. Gursky, Peter Halbach, Walter V. Maresch, Reinhard Schmidt-Effing
Publikováno v:
Revista Geonomos; Geonomos-v.18 n. 1 (2010)
The geologic basement of southern Central America is made up of oceanic complexes, partly of ophiolitic affinity, with Jurassic to Early Tertiary ages (Denyer & Gazel, 2009). Most of these rocks are deep-sea tholeiitic basalts, gabbros and serpentini
Autor:
Monika M. Gursky, Hans-Jürgen Gursky
Publikováno v:
Siliceous Deposits of the Tethys and Pacific Regions ISBN: 9781461281252
Radiolarian chert and volcaniclastic-rich siliceous rocks of the Nicoya Complex were studied by optical mineralogy, X-ray diffractometry, and SEM. Various phenomena of thermal alteration occur due to post-depositional mafic magmatism. Progressive des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ad4545b1fa656dd4c6de635b1cb580
https://doi.org/10.1007/978-1-4612-3494-4_14
https://doi.org/10.1007/978-1-4612-3494-4_14
Autor:
James R. Hein, Jelena A. Obradovic
Because of the biological origin of many siliceous deposits, their geochemical transformation in the marine environment, and their occurrence in many formations around the world, oceanographers, paleontologists, geologists, geochemists, and sedimento