Termotectonic controls of the locals mineralizations: A work hypothesis
The volumetric and morphological changes undergone by rock forming minerals due to their relative differencial thermal dilatation (contractional) coeficients arc described as mineralization emplacement control. This way, the contrasting thermal dilatation data for quartz and felspar are reviewed by...
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2007
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01019082_v26_n3_p191_Rossello http://hdl.handle.net/20.500.12110/paper_01019082_v26_n3_p191_Rossello |
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paper:paper_01019082_v26_n3_p191_Rossello2023-06-08T15:10:18Z Termotectonic controls of the locals mineralizations: A work hypothesis Rossello, Eduardo Antonio Mineralizations Ore emplacement Structural control Thermal expansion magmatism mineralization morphology ore body spatial distribution tectonics The volumetric and morphological changes undergone by rock forming minerals due to their relative differencial thermal dilatation (contractional) coeficients arc described as mineralization emplacement control. This way, the contrasting thermal dilatation data for quartz and felspar are reviewed by volumetric modeling the effect of a significant variation of α-β quartz transition arround 575°C. The proposed dilatation of the whole rock body resulting by this phenomena could range from 0.4 % for a granitoid with a poor quartz content to 1.2% for a tipically acid rock. Thus, the strong microtectonic changes resulting from these processes on acid rocks (granites to rhyolythes) are asumed to contribute to the generation, transport and spatial distribution of late magmatic mineralization fluids. As a working hypothesis, the thermal dilatation is proposed as an important factor controlling diseminated deposits (also pegmatites, greisen and skarn mineralization) as well as their coeval deformation mechanics during both increasing or decreasing temperature changes. Fil:Rossello, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01019082_v26_n3_p191_Rossello http://hdl.handle.net/20.500.12110/paper_01019082_v26_n3_p191_Rossello |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Mineralizations Ore emplacement Structural control Thermal expansion magmatism mineralization morphology ore body spatial distribution tectonics |
| spellingShingle |
Mineralizations Ore emplacement Structural control Thermal expansion magmatism mineralization morphology ore body spatial distribution tectonics Rossello, Eduardo Antonio Termotectonic controls of the locals mineralizations: A work hypothesis |
| topic_facet |
Mineralizations Ore emplacement Structural control Thermal expansion magmatism mineralization morphology ore body spatial distribution tectonics |
| description |
The volumetric and morphological changes undergone by rock forming minerals due to their relative differencial thermal dilatation (contractional) coeficients arc described as mineralization emplacement control. This way, the contrasting thermal dilatation data for quartz and felspar are reviewed by volumetric modeling the effect of a significant variation of α-β quartz transition arround 575°C. The proposed dilatation of the whole rock body resulting by this phenomena could range from 0.4 % for a granitoid with a poor quartz content to 1.2% for a tipically acid rock. Thus, the strong microtectonic changes resulting from these processes on acid rocks (granites to rhyolythes) are asumed to contribute to the generation, transport and spatial distribution of late magmatic mineralization fluids. As a working hypothesis, the thermal dilatation is proposed as an important factor controlling diseminated deposits (also pegmatites, greisen and skarn mineralization) as well as their coeval deformation mechanics during both increasing or decreasing temperature changes. |
| author |
Rossello, Eduardo Antonio |
| author_facet |
Rossello, Eduardo Antonio |
| author_sort |
Rossello, Eduardo Antonio |
| title |
Termotectonic controls of the locals mineralizations: A work hypothesis |
| title_short |
Termotectonic controls of the locals mineralizations: A work hypothesis |
| title_full |
Termotectonic controls of the locals mineralizations: A work hypothesis |
| title_fullStr |
Termotectonic controls of the locals mineralizations: A work hypothesis |
| title_full_unstemmed |
Termotectonic controls of the locals mineralizations: A work hypothesis |
| title_sort |
termotectonic controls of the locals mineralizations: a work hypothesis |
| publishDate |
2007 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01019082_v26_n3_p191_Rossello http://hdl.handle.net/20.500.12110/paper_01019082_v26_n3_p191_Rossello |
| work_keys_str_mv |
AT rosselloeduardoantonio termotectoniccontrolsofthelocalsmineralizationsaworkhypothesis |
| _version_ |
1768542830381236224 |