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Previous issue date: 2016-02-05 / Este trabalho apresenta modelos de condutividade t?rmica para rochas plut?nicas (dominantemente rochas gran?ticas), utilizados como par?metro de classifica??o entre tipologias de granit?ides. Os modelos de condutividade t?rmica foram aplicados em granit?ides ediacaranos do Dom?nio Rio Grande do Norte-DRN, por??o NE da Prov?ncia Borborema, que tem sido objeto de v?rias propostas de classifica??o tipol?gica. Trabalhos recentes prop?em at? seis diferentes su?tes magm?ticas para o Dom?nio Rio Grande do Norte com base principalmente nas caracter?sticas geoqu?micas de cada grupo, bem como nos aspectos texturais e petrogr?ficos, e este artigo apresenta uma anologia entre a condutividade t?rmica e estas diferentes su?tes/tipologias identificadas no DRN. A condutividade t?rmica foi obtida atrav?s da utiliza??o de modelos te?ricos, baseados em par?metros como composi??o qu?mica e densidade, para as amostras cujos valores de condutividade t?rmica foram medidos experimentalmente. O modelo em s?rie mostrou a melhor correla??o entre as medidas calculadas e experimentais, considerando o erro de 10% que equivale a faixa de erro na medida experimental. A partir desse modelo estimouse as condutividades t?rmicas m?dias para as seis su?tes magm?ticas propostas na literatura para os granitoides ediacaranos do Dom?nio Rio Grande do Norte. Quatro destas su?tes magm?ticas puderam ser diferenciadas a partir da condutividade t?rmica. / The present work shows estimate thermal conductivity for a group of plutonic rocks
(dominantly granitic rocks) of part of Borborema Province, and their use as parameter of
characterization by different tipology of ediacarans granitoids of Rio Grande do Norte
Domain-DRN, NE portion of Borborema Province. For this, the thermal conductivity was
obtained by theoretical models (Horai and Baldridge, Hashin Strikman and series model),
based on parameters as chemical composition and mineralogy of rocks. Between the tree
models used on this study for the group of samples that has experimental data base, the
series model was the one that show the more satisfactory results on the reproduction of the
experimental conductivity by a estimated conductivity considering a error range of ?10%.
From the series model was estimate the thermal conductivities for a group of samples from
ediacaran granitoids of DRN, that are grouped on regional literature in six diferents suites:
shoshonitic, porphyritic high-K calc-alkaline, equigranular high K calc-alkaline, calc-alkaline,
alkaline and charnockitic alkaline. The results obtained shows that this different su?tes could
be also differentiated by the thermal conductivity.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/21577 |
| Date | 05 February 2016 |
| Creators | Silva, T?rcia Ja?res de Oliveira |
| Contributors | 08036845415, http://lattes.cnpq.br/9747727150782125, Nascimento, Marcos Antonio Leite do, 90459261487, http://lattes.cnpq.br/5356037408083015, Medeiros, Vladimir Cruz de, 28943180497, http://lattes.cnpq.br/9369889068441214, Galindo, Antonio Carlos |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM GEODIN?MICA E GEOF?SICA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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