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Brazilian Journal of Geology最新文献

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Microbialitic deposits of the Yacoraite Formation, NW Argentina: distribution, environments, paleoecology, and economic implications 阿根廷西北部雅长岩组微生物沉积:分布、环境、古生态和经济意义
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210088
P. G. Villafañe, Rocío del Cielo Frías-Saba, Micaela Della-Vedova, P. Citton, I. Díaz-Martínez, S. Valais, F. Aceñolaza, R. A. Marquillas, Carlos Cónsole-Gonella
{"title":"Microbialitic deposits of the Yacoraite Formation, NW Argentina: distribution, environments, paleoecology, and economic implications","authors":"P. G. Villafañe, Rocío del Cielo Frías-Saba, Micaela Della-Vedova, P. Citton, I. Díaz-Martínez, S. Valais, F. Aceñolaza, R. A. Marquillas, Carlos Cónsole-Gonella","doi":"10.1590/2317-4889202220210088","DOIUrl":"https://doi.org/10.1590/2317-4889202220210088","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"19 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81726566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Post-Cretaceous brittle tectonics in the Tunas Alkaline Complex, Paraná, Brazil 巴西帕拉纳<e:1>图纳斯碱性复合体的后白垩纪脆性构造
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210041
T. F. Farias, Eduardo Salamuni, W. Peyerl, V. Gimenez
{"title":"Post-Cretaceous brittle tectonics in the Tunas Alkaline Complex, Paraná, Brazil","authors":"T. F. Farias, Eduardo Salamuni, W. Peyerl, V. Gimenez","doi":"10.1590/2317-4889202220210041","DOIUrl":"https://doi.org/10.1590/2317-4889202220210041","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"14 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76596567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Injection of enriched lithospheric mantle magmas explains the formation of microgranular enclaves in the Rio Jacaré Batholith, Borborema Province, Brazil 富含岩石圈地幔岩浆的注入解释了巴西Borborema省Rio jacar<s:1>岩基中微颗粒包裹体的形成
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220220033
Carlos Santana Sousa, Hiakan Santos Soares, M. L. S. Rosa, H. Conceição
{"title":"Injection of enriched lithospheric mantle magmas explains the formation of microgranular enclaves in the Rio Jacaré Batholith, Borborema Province, Brazil","authors":"Carlos Santana Sousa, Hiakan Santos Soares, M. L. S. Rosa, H. Conceição","doi":"10.1590/2317-4889202220220033","DOIUrl":"https://doi.org/10.1590/2317-4889202220220033","url":null,"abstract":"The Rio Jacaré Batholith (RJB; 617 ± 4 Ma) is inserted in the Poço Redondo Domain, Sergipano Orogenic System. This batholith is formed by monzodiorite, quartz monzodiorite, monzonite, and quartz monzonite, with abundant microgranular enclaves (MEs). The MEs vary from black to light gray and exhibit globular to slightly elongated shapes with clear-cut, crenulated, and cuspate, or, more rarely, diffuse contacts. They correspond to diorites, monzodiorites, quartz monzodiorites, and monzonites, and textural features indicate mixing of magmas, such as compositional zoning in plagioclase, inclusion zones in plagioclase phenocrysts, poikilitic alkali feldspar, acicular apatite, and ocellar quartz. Calculations of linear correlations of major elements showed that the smallest fraction of mafic magma involved in the mixing was 0.43. MEs represent the breakdown and cooling of a mafic magma that was injected into a cooler felsic magmatic chamber. Emplacement of this mafic magma occurred at different stages of crystallization of the RJB magmatic chamber. The MEs are magnesian and metaluminous, with affinity to the shoshonitic series. Ratios for Ba/Nb (> 23), Ba/La (> 15), and Nb/La (0.22–0.69) are characteristic of magmas generated from partial melting of an enriched lithospheric mantle source. Batch melting modeling suggests that source melting rates of less than 3% are necessary to generate magmas similar to those of the RJB MEs.","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"13 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81803024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Occurrence of dravitic tourmaline in a diamond-bearing breccia: a possible lamproite deposit in the Alto Paranaíba Igneous Province 在上Paranaíba火成岩省含金刚石角砾岩中电石电气石的赋存:一个可能的煌斑岩矿床
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220200063
Ana Carolina Maciel Vieira, P. A. Almeida-Abreu, Gislaine Ámores Batillani, C. Sommer
{"title":"Occurrence of dravitic tourmaline in a diamond-bearing breccia: a possible lamproite deposit in the Alto Paranaíba Igneous Province","authors":"Ana Carolina Maciel Vieira, P. A. Almeida-Abreu, Gislaine Ámores Batillani, C. Sommer","doi":"10.1590/2317-4889202220200063","DOIUrl":"https://doi.org/10.1590/2317-4889202220200063","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"23 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84728625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inhibition of swelling clays and consolidation of Itararé Sandstone using diaminoalkanes (DAA) and ethyl silicate (TEOS) 二氨基烷烃(DAA)和硅酸乙酯(TEOS)对膨胀粘土和砂岩固结的抑制作用
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210061
Danielle Grossi, E. A. Del Lama
{"title":"Inhibition of swelling clays and consolidation of Itararé Sandstone using diaminoalkanes (DAA) and ethyl silicate (TEOS)","authors":"Danielle Grossi, E. A. Del Lama","doi":"10.1590/2317-4889202220210061","DOIUrl":"https://doi.org/10.1590/2317-4889202220210061","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"27 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72726382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Rhyacian magmatic arc rocks with sanukitoid geochemical signature from the Juiz de Fora Complex, Minas-Bahia Orogenic System (SE-Brazil) 巴西东南部Minas-Bahia造山系Juiz de Fora杂岩中具有sanukitan地球化学特征的岩浆弧岩
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220220038
Sandro Mauri, M. Heilbron, H. Bruno, R. Marques, Carla Neto, C. Valeriano, Samuel Bersan, Luiz Felipe Romero, M. Geraldes
{"title":"Rhyacian magmatic arc rocks with sanukitoid geochemical signature from the Juiz de Fora Complex, Minas-Bahia Orogenic System (SE-Brazil)","authors":"Sandro Mauri, M. Heilbron, H. Bruno, R. Marques, Carla Neto, C. Valeriano, Samuel Bersan, Luiz Felipe Romero, M. Geraldes","doi":"10.1590/2317-4889202220220038","DOIUrl":"https://doi.org/10.1590/2317-4889202220220038","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"7 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76093300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geophysical characterization and modeling of a Neoproterozoic intrusive volcaniclastic lamprophyre in southernmost Brazil 巴西最南端新元古代侵入火山碎屑煌斑岩的地球物理表征与模拟
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210051
Anderson Baesso, C. Sommer, J. Savian, J. H. Gambeta, Robson dos Santos Aquino
{"title":"Geophysical characterization and modeling of a Neoproterozoic intrusive volcaniclastic lamprophyre in southernmost Brazil","authors":"Anderson Baesso, C. Sommer, J. Savian, J. H. Gambeta, Robson dos Santos Aquino","doi":"10.1590/2317-4889202220210051","DOIUrl":"https://doi.org/10.1590/2317-4889202220210051","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"31 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76908598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Microtextural, spectroscopic, and chemical characterization of amazonite from the Serra Branca Pegmatite, Northeastern Brazil 巴西东北部Serra Branca伟晶岩中亚马逊石的显微结构、光谱和化学特征
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210072
G. Santos, S. B. Barreto, I. M. B. A. Souza, J. F. A. Araújo Neto, L. Sanchéz-Muñoz, Lauro Santos
{"title":"Microtextural, spectroscopic, and chemical characterization of amazonite from the Serra Branca Pegmatite, Northeastern Brazil","authors":"G. Santos, S. B. Barreto, I. M. B. A. Souza, J. F. A. Araújo Neto, L. Sanchéz-Muñoz, Lauro Santos","doi":"10.1590/2317-4889202220210072","DOIUrl":"https://doi.org/10.1590/2317-4889202220210072","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"15 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84978491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbonate storm deposits and C, O isotopes of the Lagoa do Jacaré Formation (Ediacaran) in the Paraopeba area, Bambuí Group, Brazil 巴西Bambuí群Paraopeba地区Lagoa do jacar<s:1>组(Ediacaran)碳酸盐风暴沉积及C、O同位素
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202120200135
M. Dantas, A. Uhlein, G. Uhlein, Alex Rodrigues de Freitas, Thaís Keuffer Mendonça, José Arthur Oliveira Santos, S. M. Silva
{"title":"Carbonate storm deposits and C, O isotopes of the Lagoa do Jacaré Formation (Ediacaran) in the Paraopeba area, Bambuí Group, Brazil","authors":"M. Dantas, A. Uhlein, G. Uhlein, Alex Rodrigues de Freitas, Thaís Keuffer Mendonça, José Arthur Oliveira Santos, S. M. Silva","doi":"10.1590/2317-4889202120200135","DOIUrl":"https://doi.org/10.1590/2317-4889202120200135","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"55 1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83846746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Hydrothermal bowls in the giant Cretaceous Botucatu paleoerg 巨大的白垩纪波图卡图古生代的热液碗
IF 1.4 4区 地球科学
Brazilian Journal of Geology Pub Date : 2022-01-01 DOI: 10.1590/2317-4889202220210058
L. Hartmann, J. Pertille, M. Bicca, C. B. Santos
{"title":"Hydrothermal bowls in the giant Cretaceous Botucatu paleoerg","authors":"L. Hartmann, J. Pertille, M. Bicca, C. B. Santos","doi":"10.1590/2317-4889202220210058","DOIUrl":"https://doi.org/10.1590/2317-4889202220210058","url":null,"abstract":"","PeriodicalId":9221,"journal":{"name":"Brazilian Journal of Geology","volume":"11 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79549989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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