40Ar/39Ar age of Mendanha Alkaline Intrusion, Rio de Janeiro, Brazil
| dc.contributor.author | Mota, C. | |
| dc.contributor.author | Geraldes, M. | |
| dc.contributor.author | Jourdan, Fred | |
| dc.date.accessioned | 2017-01-30T15:15:14Z | |
| dc.date.available | 2017-01-30T15:15:14Z | |
| dc.date.created | 2015-10-29T04:09:12Z | |
| dc.date.issued | 2014 | |
| dc.identifier.citation | Mota, C. and Geraldes, M. and Jourdan, F. 2014. 40Ar/39Ar age of Mendanha Alkaline Intrusion, Rio de Janeiro, Brazil. Comunicacoes Geologicas. 101 (S1): pp. 157-161. | |
| dc.identifier.uri | http://hdl.handle.net/20.500.11937/44635 | |
| dc.description.abstract |
The Mendanha Alkaline Intrusion is one of many alkaline occurences of the Southeastern Brazil Alkaline Province. It comprises plutonic rocks (alkali-syenites and syenites) and hypabyssal types (trachytes and ignibrites). In this work is presented new 40 Ar/ 39 Ar ages for this massif. The last reported ages were about 74 My and 65 My by K/Ar method published in 1988. The obtained results show ages of about 64 My (64.12 ± 0.40, 64.04 ± 0.42) e 58 My (58.55 ± 0.45, 57.95 ± 0.69), which are correlated to neighbour magmatic intrusions. | |
| dc.publisher | Laboratorio Nacional de Energia e Geologia | |
| dc.relation.uri | http://www.lneg.pt/download/9527/29_3037_ART_CG14_ESPECIAL_I.pdf | |
| dc.title | 40Ar/39Ar age of Mendanha Alkaline Intrusion, Rio de Janeiro, Brazil | |
| dc.type | Journal Article | |
| dcterms.source.volume | 101 | |
| dcterms.source.startPage | 157 | |
| dcterms.source.endPage | 161 | |
| dcterms.source.issn | 0873-948X | |
| dcterms.source.title | Comunicacoes Geologicas | |
| curtin.department | Department of Applied Geology | |
| curtin.accessStatus | Fulltext not available |