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https://hdl.handle.net/10216/52536| Author(s): | H. Couto |
| Title: | Minerais de ferro do Ordovícico Inferior do Anticlinal de Valongo |
| Issue Date: | 2011 |
| Abstract: | The Lower Ordovician oolitic ironstones of Valongo anticline have abundant chamosite and/or siderite. True oolites are rare in the studied levels. Some pseudo-oolites are related to the presence of algae, as evidenced by cathodoluminescence. Iron came from emerged areas and deposited during transgression of Early Ordovician, in a shallow platform protected by barriers, with exhalativesedimentary vent in reducing environment rich in organic matter |
| Subject: | Ciências da terra e ciências do ambiente Earth and related Environmental sciences |
| Scientific areas: | Ciências exactas e naturais::Ciências da terra e ciências do ambiente Natural sciences::Earth and related Environmental sciences |
| URI: | https://hdl.handle.net/10216/52536 |
| Document Type: | Artigo em Revista Científica Nacional |
| Rights: | openAccess |
| License: | https://creativecommons.org/licenses/by-nc/4.0/ |
| Appears in Collections: | FCUP - Artigo em Revista Científica Nacional |
This item is licensed under a Creative Commons License
