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https://hdl.handle.net/10216/52536Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | H. Couto | |
| dc.date.accessioned | 2022-09-07T19:56:06Z | - |
| dc.date.available | 2022-09-07T19:56:06Z | - |
| dc.date.issued | 2011 | |
| dc.identifier.other | sigarra:49089 | |
| dc.identifier.uri | https://hdl.handle.net/10216/52536 | - |
| dc.description.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 | |
| dc.language.iso | por | |
| dc.rights | openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | |
| dc.subject | Ciências da terra e ciências do ambiente | |
| dc.subject | Earth and related Environmental sciences | |
| dc.title | Minerais de ferro do Ordovícico Inferior do Anticlinal de Valongo | |
| dc.type | Artigo em Revista Científica Nacional | |
| dc.contributor.uporto | Faculdade de Ciências | |
| dc.subject.fos | Ciências exactas e naturais::Ciências da terra e ciências do ambiente | |
| dc.subject.fos | Natural sciences::Earth and related Environmental sciences | |
| Appears in Collections: | FCUP - Artigo em Revista Científica Nacional | |
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