Gislaine Amores Battilani - Academia.edu (original) (raw)
Papers by Gislaine Amores Battilani
Astrobiology, Oct 22, 2021
Although several studies have explored microbial communities in different terrestrial subsurface ... more Although several studies have explored microbial communities in different terrestrial subsurface ecosystems, little is known about the diversity of their metabolic processes and survival strategies. The advance of bioinformatic tools is allowing the description of novel and not-yet cultivated microbial lineages in different ecosystems, due to the genome reconstruction approach from metagenomic data. The recovery of genomes has the potential of revealing novel lifestyles, metabolic processes and ecological roles of microorganisms, mainly in ecosystems that are largely unknown, and in which cultivation could be not viable. In this study, through shotgun metagenomic data, it was possible to reconstruct several genomes of cultivated and not-yet. CC-BY-NC-ND 4.
Ciências exatas e da terra: Observação, formulação e previsão 2
Although several studies have explored microbial communities in different terrestrial subsurface ... more Although several studies have explored microbial communities in different terrestrial subsurface ecosystems, little is known about the diversity of their metabolic processes and survival strategies. The advance of bioinformatic tools is allowing the description of novel and not-yet cultivated microbial lineages in different ecosystems, due to the genome reconstruction approach from metagenomic data. The recovery of genomes has the potential of revealing novel lifestyles, metabolic processes and ecological roles of microorganisms, mainly in ecosystems that are largely unknown, and in which cultivation could be not viable. In this study, through shotgun metagenomic data, it was possible to reconstruct several genomes of cultivated and not-yet cultivated prokaryotic lineages from a quartzite cave, located in Minas Gerais state, Brazil, which showed to possess a high diversity of genes involved with different biogeochemical cycles, including reductive and oxidative pathways related to c...
Revista Geonomos, 2016
ResumoA Bacia dos Parecis é uma das maiores bacias intracratônicas brasileiras e poucos são os es... more ResumoA Bacia dos Parecis é uma das maiores bacias intracratônicas brasileiras e poucos são os estudos relacionados à sua gênese. A Formação Pimenta Bueno, objeto desse estudo, é constituída, da base para o topo, de calcários, folhelhos, siltitos e arenitos. O presente estudo tem como principal objetivo estimar o provável estágio diagenético/metamórfico em que essas rochas foram submetidas, por meio do estudo de difratogramas de raios-X da fração argila e dos parâmetros do Índice de Kübler (Índice de Cristalinidade da Ilita). Os resultados indicam que essas rochas encontram-se na Epizona e, a média das medidas da largura a meia altura (FWHM) é de 0,16°. A análise de difratometria de raios – X indicou a presença de clorita, ilita, pirofilita, caulinita e esmectita (montmorilonita). Além das espécies bem definidas, identificou-se, também, argilominerais interestratificados de ilita/esmectita e clorita/esmectita.Palavras Chave: Cristalinidade da ilita; Bacia dos Parecis; Formação Pimen...
III Simp??sio sobre …, 2011
... Geochronological Data of Dykes and Sills Intruding Proterozoic Sequences of the Tombador Form... more ... Geochronological Data of Dykes and Sills Intruding Proterozoic Sequences of the Tombador Formation. Battilani GA, Vasconcelos PM, Gomes NS and Guerra WJ (2005). ... Q-Index Code, EX. Additional Notes, BATTILANI GA, VASCONCELOS PM, GOMES NS AND GUERRA WJ. ...
Revista Geonomos, 1996
The Mesoproterozoic Chapada Diamantina Group crops out in the central part of Bahia State, coveri... more The Mesoproterozoic Chapada Diamantina Group crops out in the central part of Bahia State, coveringthe São Francisco Craton. It is composed, from the base to the top, of the following formations: Tombador,Caboclo and Morro do Chapéu. The lower contact of the Chapada Diamantina Group is characterized byonlap with the Archean basement or by an unconformity with the Mesoproterozoic rocks of ParaguaçuGroup. The upper contact with the Una Group is unconformable and characterized by a depositional hiatus.A depositional model, a rock classification and a diagenetic evolution of the Morro do Chapéu Formation arehere presented based on stratigraphic profiles, outcrop description and microscopic studies in 45 thin sections.The rocks were deposited by transitional and fluvial systems. They show high mineralogical and texturalmaturities, and can be classified as quartz-arenites. Besides quartz and chert, which usually make up to 95 %of the rock framework, feldspars, micas, heavy minerals as wel...
9th International Congress of the Brazilian Geophysical Society & EXPOGEF, Salvador, Bahia, Brazil, 11-14 September 2005, 2005
In the frontier, deepwater province of the Campos Basin, finding hydrocarbon resources proves cha... more In the frontier, deepwater province of the Campos Basin, finding hydrocarbon resources proves challenging due to a poor understanding of the stratigraphy, subsurface structure and depositional systems. All of which must be understood in a regional as well as a local context.
Geosciences= …, 2012
Geosciences = Geociências, Vol. 30, No 2 (2011). ...
Brazilian Journal of Geology, 2009
Page 1. Revista Brasileira de Geociências Jamil Xavier dos Santos et al. 39(2): 199-212, junho de... more Page 1. Revista Brasileira de Geociências Jamil Xavier dos Santos et al. 39(2): 199-212, junho de 2009 Arquivo digital disponível on-line no site www.sbgeo.org.br 199 Geoquímica e geocronologia de granitóides tipo A da região de Cocalinho, leste do estado de Mato Grosso ...
Journal of Geoscience and Environment Protection, 2014
The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenit... more The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenite and syenite. The MSAIS rocks are intruded in metapelites of the Rio do Coco meta-volcanic-sedimentary Sequence and are abundant pegmathoid veins cutting all of them. The mineral paragenesis is represented by aegirina, arfvedsonite, albite and nepheline, crystallized during the initial phase of crystallization. A late magmatic phase show nepheline, perthite, calcite and biotite, and a hydrothermal phase allowed for the formation of cancrinite, sodalite, analcime and natrolita associated with altered nepheline. The geochemical analyses showed metaluminous and medium to high potassium characteristics, being classified as miaskitic rocks, according to agpaicity and the Na + K > 1/6Si indexes. However, the mineralogical assemblage suggests a low to medium agpaitic composition, which can be related to a transition from miaskitic to agpaitic crystallization regime. The rare earth elements showed depletion in heavy rare earth and a strong negative Eu anomaly and enrichments in the some lithophile elements, suggesting a differentiated pattern later, which can be associated to metasomatic alterations.
Rev. bras. geociênc, 2009
Anais da Academia Brasileira de Ciências, 2007
The origin of diamonds from Serra do Espinhaço in Diamantina region (State of Minas Gerais) and i... more The origin of diamonds from Serra do Espinhaço in Diamantina region (State of Minas Gerais) and in Chapada Diamantina, Lençóis region (State of Bahia) remains uncertain, even taking into account the ample research carried out during the last decades. The lack of typical satellite minerals in both districts makes a kimberlitic source for these diamonds uncertain. In mid 18th century the occurrence of a metamorphosed igneous rock composed of martite, sericite and tourmaline was described in Diamantina region and named hematitic phyllite, considered by some researchers as a possible diamond source. Similar rocks were found in Lençóis and examined petrographically and their heavy mineral concentration was investigated by means of scanning electron microscopy (SEM). Petrographic analyses indicated an igneous origin for these rocks and SEM analyses showed the discovery of microdiamonds. Geochronological studies using the Ar/Ar technique in muscovites yielded minimum ages of 1515 ± 3 Ma, w...
Journal of Geoscience and Environment Protection, 2014
The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenit... more The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenite and syenite, which are intruded in metapelites of the Rio do Coco meta-volcanic-sedimentary Sequence, presenting abundant pegmathoid veins cutting all of them. The ages obtained by Shrimp (1051 ± 22 Ma, 1048 ± 11 Ma) are very close those younger age obtained by U-Pb laser ablation (1056 ± 21), beeing interpreted as crystallization age. These dating reveal also that MSAIS rocks were affected by common succession of younger events below 550 Ma ago, responsible by the later rocky bodies of varying composition occurring in the region, including the alkaline pegmatites hosted in the nepheline syenite of the MSAIS.
Astrobiology, Oct 22, 2021
Although several studies have explored microbial communities in different terrestrial subsurface ... more Although several studies have explored microbial communities in different terrestrial subsurface ecosystems, little is known about the diversity of their metabolic processes and survival strategies. The advance of bioinformatic tools is allowing the description of novel and not-yet cultivated microbial lineages in different ecosystems, due to the genome reconstruction approach from metagenomic data. The recovery of genomes has the potential of revealing novel lifestyles, metabolic processes and ecological roles of microorganisms, mainly in ecosystems that are largely unknown, and in which cultivation could be not viable. In this study, through shotgun metagenomic data, it was possible to reconstruct several genomes of cultivated and not-yet. CC-BY-NC-ND 4.
Ciências exatas e da terra: Observação, formulação e previsão 2
Although several studies have explored microbial communities in different terrestrial subsurface ... more Although several studies have explored microbial communities in different terrestrial subsurface ecosystems, little is known about the diversity of their metabolic processes and survival strategies. The advance of bioinformatic tools is allowing the description of novel and not-yet cultivated microbial lineages in different ecosystems, due to the genome reconstruction approach from metagenomic data. The recovery of genomes has the potential of revealing novel lifestyles, metabolic processes and ecological roles of microorganisms, mainly in ecosystems that are largely unknown, and in which cultivation could be not viable. In this study, through shotgun metagenomic data, it was possible to reconstruct several genomes of cultivated and not-yet cultivated prokaryotic lineages from a quartzite cave, located in Minas Gerais state, Brazil, which showed to possess a high diversity of genes involved with different biogeochemical cycles, including reductive and oxidative pathways related to c...
Revista Geonomos, 2016
ResumoA Bacia dos Parecis é uma das maiores bacias intracratônicas brasileiras e poucos são os es... more ResumoA Bacia dos Parecis é uma das maiores bacias intracratônicas brasileiras e poucos são os estudos relacionados à sua gênese. A Formação Pimenta Bueno, objeto desse estudo, é constituída, da base para o topo, de calcários, folhelhos, siltitos e arenitos. O presente estudo tem como principal objetivo estimar o provável estágio diagenético/metamórfico em que essas rochas foram submetidas, por meio do estudo de difratogramas de raios-X da fração argila e dos parâmetros do Índice de Kübler (Índice de Cristalinidade da Ilita). Os resultados indicam que essas rochas encontram-se na Epizona e, a média das medidas da largura a meia altura (FWHM) é de 0,16°. A análise de difratometria de raios – X indicou a presença de clorita, ilita, pirofilita, caulinita e esmectita (montmorilonita). Além das espécies bem definidas, identificou-se, também, argilominerais interestratificados de ilita/esmectita e clorita/esmectita.Palavras Chave: Cristalinidade da ilita; Bacia dos Parecis; Formação Pimen...
III Simp??sio sobre …, 2011
... Geochronological Data of Dykes and Sills Intruding Proterozoic Sequences of the Tombador Form... more ... Geochronological Data of Dykes and Sills Intruding Proterozoic Sequences of the Tombador Formation. Battilani GA, Vasconcelos PM, Gomes NS and Guerra WJ (2005). ... Q-Index Code, EX. Additional Notes, BATTILANI GA, VASCONCELOS PM, GOMES NS AND GUERRA WJ. ...
Revista Geonomos, 1996
The Mesoproterozoic Chapada Diamantina Group crops out in the central part of Bahia State, coveri... more The Mesoproterozoic Chapada Diamantina Group crops out in the central part of Bahia State, coveringthe São Francisco Craton. It is composed, from the base to the top, of the following formations: Tombador,Caboclo and Morro do Chapéu. The lower contact of the Chapada Diamantina Group is characterized byonlap with the Archean basement or by an unconformity with the Mesoproterozoic rocks of ParaguaçuGroup. The upper contact with the Una Group is unconformable and characterized by a depositional hiatus.A depositional model, a rock classification and a diagenetic evolution of the Morro do Chapéu Formation arehere presented based on stratigraphic profiles, outcrop description and microscopic studies in 45 thin sections.The rocks were deposited by transitional and fluvial systems. They show high mineralogical and texturalmaturities, and can be classified as quartz-arenites. Besides quartz and chert, which usually make up to 95 %of the rock framework, feldspars, micas, heavy minerals as wel...
9th International Congress of the Brazilian Geophysical Society & EXPOGEF, Salvador, Bahia, Brazil, 11-14 September 2005, 2005
In the frontier, deepwater province of the Campos Basin, finding hydrocarbon resources proves cha... more In the frontier, deepwater province of the Campos Basin, finding hydrocarbon resources proves challenging due to a poor understanding of the stratigraphy, subsurface structure and depositional systems. All of which must be understood in a regional as well as a local context.
Geosciences= …, 2012
Geosciences = Geociências, Vol. 30, No 2 (2011). ...
Brazilian Journal of Geology, 2009
Page 1. Revista Brasileira de Geociências Jamil Xavier dos Santos et al. 39(2): 199-212, junho de... more Page 1. Revista Brasileira de Geociências Jamil Xavier dos Santos et al. 39(2): 199-212, junho de 2009 Arquivo digital disponível on-line no site www.sbgeo.org.br 199 Geoquímica e geocronologia de granitóides tipo A da região de Cocalinho, leste do estado de Mato Grosso ...
Journal of Geoscience and Environment Protection, 2014
The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenit... more The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenite and syenite. The MSAIS rocks are intruded in metapelites of the Rio do Coco meta-volcanic-sedimentary Sequence and are abundant pegmathoid veins cutting all of them. The mineral paragenesis is represented by aegirina, arfvedsonite, albite and nepheline, crystallized during the initial phase of crystallization. A late magmatic phase show nepheline, perthite, calcite and biotite, and a hydrothermal phase allowed for the formation of cancrinite, sodalite, analcime and natrolita associated with altered nepheline. The geochemical analyses showed metaluminous and medium to high potassium characteristics, being classified as miaskitic rocks, according to agpaicity and the Na + K > 1/6Si indexes. However, the mineralogical assemblage suggests a low to medium agpaitic composition, which can be related to a transition from miaskitic to agpaitic crystallization regime. The rare earth elements showed depletion in heavy rare earth and a strong negative Eu anomaly and enrichments in the some lithophile elements, suggesting a differentiated pattern later, which can be associated to metasomatic alterations.
Rev. bras. geociênc, 2009
Anais da Academia Brasileira de Ciências, 2007
The origin of diamonds from Serra do Espinhaço in Diamantina region (State of Minas Gerais) and i... more The origin of diamonds from Serra do Espinhaço in Diamantina region (State of Minas Gerais) and in Chapada Diamantina, Lençóis region (State of Bahia) remains uncertain, even taking into account the ample research carried out during the last decades. The lack of typical satellite minerals in both districts makes a kimberlitic source for these diamonds uncertain. In mid 18th century the occurrence of a metamorphosed igneous rock composed of martite, sericite and tourmaline was described in Diamantina region and named hematitic phyllite, considered by some researchers as a possible diamond source. Similar rocks were found in Lençóis and examined petrographically and their heavy mineral concentration was investigated by means of scanning electron microscopy (SEM). Petrographic analyses indicated an igneous origin for these rocks and SEM analyses showed the discovery of microdiamonds. Geochronological studies using the Ar/Ar technique in muscovites yielded minimum ages of 1515 ± 3 Ma, w...
Journal of Geoscience and Environment Protection, 2014
The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenit... more The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenite and syenite, which are intruded in metapelites of the Rio do Coco meta-volcanic-sedimentary Sequence, presenting abundant pegmathoid veins cutting all of them. The ages obtained by Shrimp (1051 ± 22 Ma, 1048 ± 11 Ma) are very close those younger age obtained by U-Pb laser ablation (1056 ± 21), beeing interpreted as crystallization age. These dating reveal also that MSAIS rocks were affected by common succession of younger events below 550 Ma ago, responsible by the later rocky bodies of varying composition occurring in the region, including the alkaline pegmatites hosted in the nepheline syenite of the MSAIS.