Pub Date : 2023-02-22DOI: 10.11137/1982-3908_2023_46_43387
Wilson Dos Anjos Carvalho, Alan Cezar Bezerra, Elisiane Alba, Luciana Sandra bastos Souza, Anderson Santos da Silva, Geber Barbosa de Albuquerque Moura
The State of Pernambuco covers an extensive semi-arid area where the Caatinga biome dominates. This region is characterized by long periods of drought, highlighting the need for water resource optimization. This paper aimed to compare three methods to assess reservoir changes: MapBiomas' products, the Normalized Difference Water Index (NDWI), and a support vector machine (SVM) algorithm. Initially, we obtained the monthly precipitation from 1987 to 2019 and calculated the yearly accumulation. Mapbiomas, Landsat 7 ETM, and Landsat 8 OLI data from 2012-2018 were accessed and processed using the Google Earth Engine platform. We obtained the annual image with the median pixel criterion to determine the NDWI and quantify the annual reservoir area. For the supervised classification with SVM, samples from different land-use types of the study area were used to train the algorithm. From 2012 to 2018, a reservoir reduction of 63.42% was observed with MapBiomas images, 69.49% with NDWI images, and 67.69% using the SVM algorithm. The results obtained using NDWI were the most similar to those from the artificial intelligence classification, indicating that NDWI can be used to monitor the reservoir conditions.
伯南布哥州覆盖了广阔的半干旱地区，卡廷加生物群落占主导地位。该地区的特点是长期干旱，突出了优化水资源的必要性。本文旨在比较三种评估储层变化的方法:MapBiomas产品、归一化差水指数(NDWI)和支持向量机(SVM)算法。首先取1987 - 2019年的月降水量，计算年累积量。Mapbiomas、Landsat 7 ETM和Landsat 8 OLI 2012-2018年的数据使用谷歌地球引擎平台进行访问和处理。利用中位像元标准获得年度图像，确定NDWI，量化年度库区面积。在SVM监督分类中，使用研究区不同土地利用类型的样本对算法进行训练。从2012年到2018年，MapBiomas图像的水库减少率为63.42%，NDWI图像减少率为69.49%，SVM算法减少率为67.69%。结果表明，NDWI与人工智能分类结果最相似，可以用于储层状况监测。
{"title":"Comparison Between Three Methods to Monitor Reservoir Extension in the Brazilian Semi-Arid Region","authors":"Wilson Dos Anjos Carvalho, Alan Cezar Bezerra, Elisiane Alba, Luciana Sandra bastos Souza, Anderson Santos da Silva, Geber Barbosa de Albuquerque Moura","doi":"10.11137/1982-3908_2023_46_43387","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_43387","url":null,"abstract":"The State of Pernambuco covers an extensive semi-arid area where the Caatinga biome dominates. This region is characterized by long periods of drought, highlighting the need for water resource optimization. This paper aimed to compare three methods to assess reservoir changes: MapBiomas' products, the Normalized Difference Water Index (NDWI), and a support vector machine (SVM) algorithm. Initially, we obtained the monthly precipitation from 1987 to 2019 and calculated the yearly accumulation. Mapbiomas, Landsat 7 ETM, and Landsat 8 OLI data from 2012-2018 were accessed and processed using the Google Earth Engine platform. We obtained the annual image with the median pixel criterion to determine the NDWI and quantify the annual reservoir area. For the supervised classification with SVM, samples from different land-use types of the study area were used to train the algorithm. From 2012 to 2018, a reservoir reduction of 63.42% was observed with MapBiomas images, 69.49% with NDWI images, and 67.69% using the SVM algorithm. The results obtained using NDWI were the most similar to those from the artificial intelligence classification, indicating that NDWI can be used to monitor the reservoir conditions.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136275191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.11137/1982-3908_2023_46_49383
T. Pereira, Kátia Leite Mansur, Amanda Goulart Rodrigues
This study discusses the cause of local lithification in sediments from quaternary beach ridges of Paraíba do Sul Deltaic Complex (Rio de Janeiro, Brazil) and its application to the concept of geological heritage. These beach ridges were excavated to construct the Campos - Macaé Canal, opened in the 19th century predominantly by slave labor. A detailed sedimentological, mineralogical and petrological study was performed. The consolidated material consists to fine-grained sandstone with incipient parallel lamination. Kaolinite associated with iron oxides/hydroxides is organized in thin coatings, sometimes forming meniscus and bridges. The heavy mineral assembly of the sandstone is similar to those found in the beach ridges friable samples. The sandstone granulometry increases from east to west along the canal margins and the same pattern is observed in the adjacent beach ridges. We suggest that pedogenic processes acted intensively on Canal margins after its opening, causing mechanical infiltration and translocation of clay minerals, promoting differentiated consolidation of sediments only in that part that was deepened during the excavation. The anthropic action altered the local physiography by exposing the sediments of beach ridges. Therefore, this sandstone should be considered a geological heritage due to its unique occurrence, touristic, historical, scientific and educational value.
本文探讨了巴西Paraíba do Sul Deltaic Complex(里约热内卢de Janeiro, Brazil)第四纪海滩脊沉积物局部岩化作用的成因及其在地质遗产概念上的应用。这些海滩山脊是为了修建坎波斯-马卡伊运河而挖掘的，该运河于19世纪开通，主要依靠奴隶劳动。进行了详细的沉积学、矿物学和岩石学研究。固结材料为细粒砂岩，平行层叠初期形成。高岭石与氧化铁/氢氧化物相结合，形成薄涂层，有时形成半月板和桥。砂岩的重矿物组合与海滩脊脆性样品中发现的矿物组合相似。砂石粒度沿运河边缘自东向西增大，在邻近的海滩山脊上也观察到相同的规律。我们认为，在运河开凿后，成土作用在运河边缘集中发生，导致粘土矿物的机械入渗和移位，仅在开挖过程中加深的部分促进了沉积物的分化固结。人为活动使海滩山脊的沉积物暴露出来，从而改变了当地的地形。因此，该砂岩因其独特的出现、旅游、历史、科学和教育价值，应被视为地质遗产。
{"title":"Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil","authors":"T. Pereira, Kátia Leite Mansur, Amanda Goulart Rodrigues","doi":"10.11137/1982-3908_2023_46_49383","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_49383","url":null,"abstract":"This study discusses the cause of local lithification in sediments from quaternary beach ridges of Paraíba do Sul Deltaic Complex (Rio de Janeiro, Brazil) and its application to the concept of geological heritage. These beach ridges were excavated to construct the Campos - Macaé Canal, opened in the 19th century predominantly by slave labor. A detailed sedimentological, mineralogical and petrological study was performed. The consolidated material consists to fine-grained sandstone with incipient parallel lamination. Kaolinite associated with iron oxides/hydroxides is organized in thin coatings, sometimes forming meniscus and bridges. The heavy mineral assembly of the sandstone is similar to those found in the beach ridges friable samples. The sandstone granulometry increases from east to west along the canal margins and the same pattern is observed in the adjacent beach ridges. We suggest that pedogenic processes acted intensively on Canal margins after its opening, causing mechanical infiltration and translocation of clay minerals, promoting differentiated consolidation of sediments only in that part that was deepened during the excavation. The anthropic action altered the local physiography by exposing the sediments of beach ridges. Therefore, this sandstone should be considered a geological heritage due to its unique occurrence, touristic, historical, scientific and educational value. ","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47560109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-02DOI: 10.11137/1982-3908_2023_46_48188
Eduardo Chiarani, A. Antunes, D. Drago, A. P. Oening, Luís Alexandre Catussi Paschoalotto
Optimal site selection using multi-criteria decision analysis (MCDA) is an important step to support decision makers to locate places that benefit the maximum potential of technology's preconditions. As a new, emerging and renewable technology in Brazil, concentrated solar power (CSP) plays an important role in power generation mix, and it’s crucial to indicate the viability of Brazilian regions to CSP power plants. To achieve this goal, a detailed workflow of multi-criteria analysis based on geographic information system (GIS based AHP) is set in free software, in which criteria are selected from literature, acquired as geospatial data, weighted with parity matrices through online questionnaires filled by experts, processed on QGIS with weighted linear combination (WLC), and the results validated by its AHP consistency, thematic accuracy and comparative analysis with VIKOR and TOPSIS methodologies. As a product, sites are mapped according to viability indices, with higher values in most of Northeast, Central-west and Southeast regions of Brazil, showing good stability by its validation. Thereby, the workflow with free software allows the methodology to be replicated to support decision makers in locating viable and restrictive places for technologies.
{"title":"Optimal Site Selection Using Geographical Information System (GIS) Based Multi-criteria Decision Analysis (MCDA): A Case Study To Concentrated Solar Power Plants (CSP) In Brazil","authors":"Eduardo Chiarani, A. Antunes, D. Drago, A. P. Oening, Luís Alexandre Catussi Paschoalotto","doi":"10.11137/1982-3908_2023_46_48188","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_48188","url":null,"abstract":"Optimal site selection using multi-criteria decision analysis (MCDA) is an important step to support decision makers to locate places that benefit the maximum potential of technology's preconditions. As a new, emerging and renewable technology in Brazil, concentrated solar power (CSP) plays an important role in power generation mix, and it’s crucial to indicate the viability of Brazilian regions to CSP power plants. To achieve this goal, a detailed workflow of multi-criteria analysis based on geographic information system (GIS based AHP) is set in free software, in which criteria are selected from literature, acquired as geospatial data, weighted with parity matrices through online questionnaires filled by experts, processed on QGIS with weighted linear combination (WLC), and the results validated by its AHP consistency, thematic accuracy and comparative analysis with VIKOR and TOPSIS methodologies. As a product, sites are mapped according to viability indices, with higher values in most of Northeast, Central-west and Southeast regions of Brazil, showing good stability by its validation. Thereby, the workflow with free software allows the methodology to be replicated to support decision makers in locating viable and restrictive places for technologies.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43855303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-02DOI: 10.11137/1982-3908_2023_46_49992
J. A. C. Gonçalves, Milena Stefany Lage Almeida, Eliane Maria Vieira, Brenda Luíza Ferreira Paiva, M. Ferreira, Lázaro Correa Marcellino
Itapemirim River basin and part of the Itabapoana River basin are located in the southern area of the State of Espírito Santo, covering 26 municipalities. Knowledge of these basins’ hydrogeological characteristics provides information on the groundwater potential and the behavior of the river base flow during dry seasons. The objective of this study is to assess the relationship between surface and underground waters from the analysis of hydrograph units and information from tubular well logs. The Itabapoana River basin had the highest flow rates with mean specific capacity of 1415.1 m3 /h/m, while Itapemirim River basin wells yielded 0.6941 m3 /h/m. The percentage of underground discharge in relation to the total discharge exceeded 60% during all seasons in both basins.
{"title":"Interaction Between Surface and Underground Waters of the Itapemirim and Itabapoana River Basins in the Southern part of the State of Espírito Santo, Southeastern Brazil","authors":"J. A. C. Gonçalves, Milena Stefany Lage Almeida, Eliane Maria Vieira, Brenda Luíza Ferreira Paiva, M. Ferreira, Lázaro Correa Marcellino","doi":"10.11137/1982-3908_2023_46_49992","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_49992","url":null,"abstract":"Itapemirim River basin and part of the Itabapoana River basin are located in the southern area of the State of Espírito Santo, covering 26 municipalities. Knowledge of these basins’ hydrogeological characteristics provides information on the groundwater potential and the behavior of the river base flow during dry seasons. The objective of this study is to assess the relationship between surface and underground waters from the analysis of hydrograph units and information from tubular well logs. The Itabapoana River basin had the highest flow rates with mean specific capacity of 1415.1 m3 /h/m, while Itapemirim River basin wells yielded 0.6941 m3 /h/m. The percentage of underground discharge in relation to the total discharge exceeded 60% during all seasons in both basins.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43058676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-02DOI: 10.11137/1982-3908_2023_46_47353
Marcelo Mendes, J. Favoreto, M. Nunes, A. Rigueti, B. Valle, L. Borghi, P. Corbett, M. Lima, Lorena Martins, M. Arena
Considered important analogues of pre-salt reservoirs in hydrocarbon-producing basins throughout eastern Brazilian shore, the coquinas of the Morro do Chaves Formation (Barremian-Aptian of the Sergipe-Alagoas Basin) were studied in this work from a petrophysical standpoint using advanced characterization methods for cores recovered from four wells (2-SMC-01-AL, 2-SMC-02-AL, 2-SMC-03-AL e 2-SMC-01-AL) drilled in the Atoll Quarry, which is located in city of São Miguel dos Campos, Alagoas State, Brazil. To understand the relationships between lithological and diagenetic heterogeneities that control the distribution of permeability-porosity properties of this rock type, the cores underwent Dual-Energy X-ray imaging, which determines bulk density and photoelectric factor data to define seven rock types and generate effective porosity curves for the studied wells. Permeabilities in wells were modeled based on the Flow Zone Index (FZI) concept, and each reservoir interval based on the Global Hydraulic Elements (GHEs) approach. Results were calibrated with laboratory measurements in plugs, and porosity was classified by petrographic analysis by Digital Image Analysis (DIA). All wells were correlated and four internal flooding surfaces identified, with a regressive surface (RS) dividing the Morro do Chaves Formation into an upper section with better reservoir characteristics and a lower one with worse ones.
被认为是巴西东部海岸产烃盆地中盐前储层的重要类似物，本工作从岩石物理的角度对Morro do Chaves组（Sergipe Alagoas盆地的Barremian Aptian）的coquinas进行了研究，使用了从位于巴西阿拉戈斯州São Miguel dos Campos市的环礁采石场钻探的四口井（2-SMC01-AL、2-SMC02-AL、2-SCM-03-AL e 2-SMC01-0AL）中回收的岩芯的先进表征方法。为了了解控制该岩石类型渗透率-孔隙度分布的岩性和成岩非均质性之间的关系，对岩心进行了双能X射线成像，该成像确定了体积密度和光电因子数据，以定义七种岩石类型，并为研究井生成有效孔隙度曲线。基于流动区指数（FZI）概念对井的渗透率进行建模，并基于全局水力要素（GHE）方法对每个储层层段进行建模。结果用塞子中的实验室测量值进行校准，孔隙度通过数字图像分析（DIA）的岩相分析进行分类。对所有井进行了关联，并确定了四个内部洪泛面，回归面（RS）将Morro do Chaves组划分为储层特征较好的上段和储层特征较差的下段。
{"title":"Petrophysical Characterization and porosity-permeability log calculation by Dual-Energy CT scan: Morro do Chaves Formation, Sergipe-Alagoas Basin, Brazil","authors":"Marcelo Mendes, J. Favoreto, M. Nunes, A. Rigueti, B. Valle, L. Borghi, P. Corbett, M. Lima, Lorena Martins, M. Arena","doi":"10.11137/1982-3908_2023_46_47353","DOIUrl":"https://doi.org/10.11137/1982-3908_2023_46_47353","url":null,"abstract":"Considered important analogues of pre-salt reservoirs in hydrocarbon-producing basins throughout eastern Brazilian shore, the coquinas of the Morro do Chaves Formation (Barremian-Aptian of the Sergipe-Alagoas Basin) were studied in this work from a petrophysical standpoint using advanced characterization methods for cores recovered from four wells (2-SMC-01-AL, 2-SMC-02-AL, 2-SMC-03-AL e 2-SMC-01-AL) drilled in the Atoll Quarry, which is located in city of São Miguel dos Campos, Alagoas State, Brazil. To understand the relationships between lithological and diagenetic heterogeneities that control the distribution of permeability-porosity properties of this rock type, the cores underwent Dual-Energy X-ray imaging, which determines bulk density and photoelectric factor data to define seven rock types and generate effective porosity curves for the studied wells. Permeabilities in wells were modeled based on the Flow Zone Index (FZI) concept, and each reservoir interval based on the Global Hydraulic Elements (GHEs) approach. Results were calibrated with laboratory measurements in plugs, and porosity was classified by petrographic analysis by Digital Image Analysis (DIA). All wells were correlated and four internal flooding surfaces identified, with a regressive surface (RS) dividing the Morro do Chaves Formation into an upper section with better reservoir characteristics and a lower one with worse ones.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48424473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Qualidade das Águas Subterrâneas em Aquífero Sedimentar do Tipo Livre em Área Fertirrigada com Efluente de Suinocultura em São Gabriel do Oeste, MS","authors":"Denise Aguena Uechi, Sandra Garcia Gabas, Giancarlo Lastoria","doi":"10.11137/1982-3908_2022_45_45460","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_45460","url":null,"abstract":"","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46445260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-26DOI: 10.11137/1982-3908_2022_45_48250
Sergio Orlando Antoun Netto, Bruna Quintan Fortunato, André Geffer Bonato
We discuss a qualitative analysis of the efficiency of the Brazilian Network for Continuous Global Navigation Satellite System Monitoring (RBMC) using the Complex Holographic Assessment of Paradoxical Problems method (CHAP²), whose premise is the organization of intersubjectivity facilitated by the use of visual representation of structured knowledge (conceptual mapping) to increase the degree of consciousness to manage the paradoxes resulting from the complexity of living systems. We also describe a quantitative evaluation using Data Envelopment Analysis (DEA) allowing a ranking in terms of efficiency for further assessment by a professional of the area. The outcome of this study would be useful for IBGE (Brazilian Institute of Geography and Statistics) managers to be aware, for instance, of the suppliers and manufacturers of equipment available (receiver and geodetic antenna, Internet connection and constant supply of electricity) in efficient and ineffective stations, to guide new acquisitions, among other applications
{"title":"Integrating Qualitative and Quantitative Methods to Evaluate Performance of the Brazilian Network for Continuous Global Navigation Satellite System (GNSS) Monitoring (RBMC)","authors":"Sergio Orlando Antoun Netto, Bruna Quintan Fortunato, André Geffer Bonato","doi":"10.11137/1982-3908_2022_45_48250","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_48250","url":null,"abstract":"We discuss a qualitative analysis of the efficiency of the Brazilian Network for Continuous Global Navigation Satellite System Monitoring (RBMC) using the Complex Holographic Assessment of Paradoxical Problems method (CHAP²), whose premise is the organization of intersubjectivity facilitated by the use of visual representation of structured knowledge (conceptual mapping) to increase the degree of consciousness to manage the paradoxes resulting from the complexity of living systems. We also describe a quantitative evaluation using Data Envelopment Analysis (DEA) allowing a ranking in terms of efficiency for further assessment by a professional of the area. The outcome of this study would be useful for IBGE (Brazilian Institute of Geography and Statistics) managers to be aware, for instance, of the suppliers and manufacturers of equipment available (receiver and geodetic antenna, Internet connection and constant supply of electricity) in efficient and ineffective stations, to guide new acquisitions, among other applications","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43730707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-22DOI: 10.11137/1982-3908_2022_45_51358
P. Pereira, L. Prado, Rilda C. Araripe, D. Oliveira, Flávia A.P. Lemos, L. Lobo, Maria Emília Travassos Rios Tomé, A. Barreto
The phylum Mollusca includes one of the most beautiful examples of colour patterns in present-day shells. However, they are rare in the fossil record because they demand excellent fossilization. In Brazil, colour patterns in fossil mollusk shells are recorded in gastropods Natica aff. bulbulus White, 1887 from the Riachuelo Formation (Aptian-Albian), Sergipe-Alagoas Basin. This paper presents the first gastropod shells from the Romualdo Formation with colour patterns, visible under natural and UV light, belonging to the families Naticidae and Cassiopidae, collected at Santo Antônio outcrop municipality of Exu, Pernambuco and, Pinheiro and Serra do Mãozinha sites, municipality of Missão Velha and Romualdo site, municipality of Crato, Ceará. Among the cassiopids more than 100 specimens were tested, with 1/3 of them showing a residual colour pattern under UV light exposure, after chemical preparation. They correspond to the species Paraglauconia (Diglauconia) araripensis (Beurlen, 1964), Paraglauconia (Diglauconia) lyrica Maury, 1934, Gymnentome (Gymnentome) carregozica (Maury, 1934) and Gymnentome (Gymnentome) romualdoi Beurlen, 1964. The colour pattern is virtually similar in both genera, with fluorescent stripes on a dark background, showing the taxonomic similarity between them. As for the naticids, about 20 specimens were collected and 15 show good preservation, observing the visible colour pattern under natural light in Natica sp. and Euspira sp.; both new taxa for the Araripe Basin. The residual colour pattern in naticids ranges from spiral stripes to sigmoidal lines and blotches of brown and yellowish tones on a paler background, as observed in fossil species of the same family in the Cenozoic. The new occurrences increase the fossiliferous diversity of mollusks of the Romualdo Formation and extend the understanding of the diversity of colouration patterns of Lower Cretaceous gastropods.
{"title":"Gastropods Colour Patterns in Cassiopids and Naticids from Romualdo Formation, Araripe Basin, Northeast Brazil","authors":"P. Pereira, L. Prado, Rilda C. Araripe, D. Oliveira, Flávia A.P. Lemos, L. Lobo, Maria Emília Travassos Rios Tomé, A. Barreto","doi":"10.11137/1982-3908_2022_45_51358","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_51358","url":null,"abstract":"The phylum Mollusca includes one of the most beautiful examples of colour patterns in present-day shells. However, they are rare in the fossil record because they demand excellent fossilization. In Brazil, colour patterns in fossil mollusk shells are recorded in gastropods Natica aff. bulbulus White, 1887 from the Riachuelo Formation (Aptian-Albian), Sergipe-Alagoas Basin. This paper presents the first gastropod shells from the Romualdo Formation with colour patterns, visible under natural and UV light, belonging to the families Naticidae and Cassiopidae, collected at Santo Antônio outcrop municipality of Exu, Pernambuco and, Pinheiro and Serra do Mãozinha sites, municipality of Missão Velha and Romualdo site, municipality of Crato, Ceará. Among the cassiopids more than 100 specimens were tested, with 1/3 of them showing a residual colour pattern under UV light exposure, after chemical preparation. They correspond to the species Paraglauconia (Diglauconia) araripensis (Beurlen, 1964), Paraglauconia (Diglauconia) lyrica Maury, 1934, Gymnentome (Gymnentome) carregozica (Maury, 1934) and Gymnentome (Gymnentome) romualdoi Beurlen, 1964. The colour pattern is virtually similar in both genera, with fluorescent stripes on a dark background, showing the taxonomic similarity between them. As for the naticids, about 20 specimens were collected and 15 show good preservation, observing the visible colour pattern under natural light in Natica sp. and Euspira sp.; both new taxa for the Araripe Basin. The residual colour pattern in naticids ranges from spiral stripes to sigmoidal lines and blotches of brown and yellowish tones on a paler background, as observed in fossil species of the same family in the Cenozoic. The new occurrences increase the fossiliferous diversity of mollusks of the Romualdo Formation and extend the understanding of the diversity of colouration patterns of Lower Cretaceous gastropods.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42557208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-22DOI: 10.11137/1982-3908_2022_45_49325
Giovanna Collyer Resende, Maurício José Rosso Pinto, Elvineide Máximo Alves da Silva, J. Marrugo-Negrete, Frederico Yuri Hanai
Springs are extremely important for the maintenance of the hydrological cycle, contributing to the improvement of the population's quality of life. In this sense, this research aimed to analyse the conservation status of three springs in the watersheds of Mineirinho and Paraíso streams located in the city of São Carlos, São Paulo, Brazil, in order to understand the possible causes of its conditions. The Integrated Assessment and Monitoring Protocol for Springs of Water Streams (PANÁgua) was applied, whose structure is summarized in three stages: field assessment, bibliographic research and analysis using Geographic Information Systems (GIS). As a result, it was identified that the three springs assessed in both watersheds are in a conservation status classified as “bad”. The main cause of this condition can be attributed to their locations, which are identified as urbanized areas, which results in a lack of natural vegetation, the presence of strong erosion processes and irregular dumping of sewage and rainwater. Furthermore, the disposal of various solid residues in the Permanent Preservation Areas (APP) of the studied springs was also observed. The results show the need to prioritize environmental management actions in urbanized watersheds, as well as expand research on the status of tropical watersheds in Brazil.
{"title":"Analysis of the Conservation Status of Urbanized Tropical Springs in Southeastern Brazil","authors":"Giovanna Collyer Resende, Maurício José Rosso Pinto, Elvineide Máximo Alves da Silva, J. Marrugo-Negrete, Frederico Yuri Hanai","doi":"10.11137/1982-3908_2022_45_49325","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_49325","url":null,"abstract":"Springs are extremely important for the maintenance of the hydrological cycle, contributing to the improvement of the population's quality of life. In this sense, this research aimed to analyse the conservation status of three springs in the watersheds of Mineirinho and Paraíso streams located in the city of São Carlos, São Paulo, Brazil, in order to understand the possible causes of its conditions. The Integrated Assessment and Monitoring Protocol for Springs of Water Streams (PANÁgua) was applied, whose structure is summarized in three stages: field assessment, bibliographic research and analysis using Geographic Information Systems (GIS). As a result, it was identified that the three springs assessed in both watersheds are in a conservation status classified as “bad”. The main cause of this condition can be attributed to their locations, which are identified as urbanized areas, which results in a lack of natural vegetation, the presence of strong erosion processes and irregular dumping of sewage and rainwater. Furthermore, the disposal of various solid residues in the Permanent Preservation Areas (APP) of the studied springs was also observed. The results show the need to prioritize environmental management actions in urbanized watersheds, as well as expand research on the status of tropical watersheds in Brazil.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41979117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-22DOI: 10.11137/1982-3908_2022_45_48193
R. Kraft, F. Vesely, L. Weinschütz
The Itararé Group, Permocarboniferous of the Paraná Basin, has its deposition associated with the Late Paleozoic Ice Age (LPIA), which encompassed multiple glacial advance-retreat cycles. Recognizing the nature of the processes that form these rocks is essential to understand the diversity of glacial and non-glacial depositional systems that were active during the LPIA. Previous authors have carried out sedimentological and stratigraphic studies in outcrops of the Itararé Group in the Santa Catarina and Paraná states, however, the integration between these areas and the delimitation of glacial cycles is still little known. Seeking to increase the knowledge on the stratigraphy of the Itararé Group, this work aims to investigate its facies in five shallow boreholes in the Mafra region, northern Santa Catarina state. In this region, 300 meters of cores sampled almost the entire stratigraphic succession of the Itararé Group. We further integrate our results with published data from Alfredo Wagner, Vidal Ramos, Presidente Getúlio, Doutor Pedrinho and São João do Triunfo in order to build a regional stratigraphic framework. A total of 33 sedimentary facies were recognized and organized in five genetic associations, corresponding to subaqueous outwash fans, rain-out and mud settling, thin-bedded turbidites, mass- transport deposits, and thick-bedded turbidites. The regional stratigraphic correlation allowed the recognition of 5 glacial cycles, corresponding to depositional sequences of deglaciation. They show signs of glacial influence that diminish toward the top, where deltaic deposits developed as climatic conditions improved. Diamictites are present in all areas and distributed preferentially in the lower and middle sequences. They consist of mass- transport deposits with origin attributed to gravitational instability due to sediment accumulation in melting and glacial retreat phases.
伊塔拉雷群是巴拉那盆地的含碳二叠纪，其沉积与晚古生代冰河时代（LPIA）有关，该时代包括多个冰川进退周期。认识到形成这些岩石的过程的性质对于理解LPIA期间活跃的冰川和非冰川沉积系统的多样性至关重要。先前的作者对圣卡塔琳娜州和巴拉那州的伊塔拉雷群露头进行了沉积学和地层学研究，然而，这些地区与冰川旋回划界之间的整合仍然鲜为人知。为了增加对Itararé群地层学的了解，本工作旨在调查圣卡塔琳娜州北部Mafra地区五个浅钻孔中的相。在该地区，300米长的岩心几乎对伊塔拉雷群的整个地层序列进行了采样。我们进一步将我们的结果与Alfredo Wagner、Vidal Ramos、Presidente Getúlio、Doutor Pedrinho和São João do Triunfo的已发表数据相结合，以建立区域地层格架。共识别出33个沉积相，并将其组织为5个成因组合，分别对应于水下冲积扇、雨水和泥浆沉积、薄层浊积岩、物质输送沉积和厚层浊积岩。区域地层对比可以识别出5个冰川旋回，对应于冰川消退的沉积序列。它们显示出冰川影响向顶部减弱的迹象，随着气候条件的改善，三角洲沉积物在顶部形成。杂岩分布于各地区，并优先分布于中下部层序。它们由物质输送沉积物组成，其成因归因于融化和冰川退缩阶段沉积物堆积造成的重力不稳定。
{"title":"Depositional Sequences of the Itararé Group in the Region of Mafra (SC) and their Regional Correlation","authors":"R. Kraft, F. Vesely, L. Weinschütz","doi":"10.11137/1982-3908_2022_45_48193","DOIUrl":"https://doi.org/10.11137/1982-3908_2022_45_48193","url":null,"abstract":"The Itararé Group, Permocarboniferous of the Paraná Basin, has its deposition associated with the Late Paleozoic Ice Age (LPIA), which encompassed multiple glacial advance-retreat cycles. Recognizing the nature of the processes that form these rocks is essential to understand the diversity of glacial and non-glacial depositional systems that were active during the LPIA. Previous authors have carried out sedimentological and stratigraphic studies in outcrops of the Itararé Group in the Santa Catarina and Paraná states, however, the integration between these areas and the delimitation of glacial cycles is still little known. Seeking to increase the knowledge on the stratigraphy of the Itararé Group, this work aims to investigate its facies in five shallow boreholes in the Mafra region, northern Santa Catarina state. In this region, 300 meters of cores sampled almost the entire stratigraphic succession of the Itararé Group. We further integrate our results with published data from Alfredo Wagner, Vidal Ramos, Presidente Getúlio, Doutor Pedrinho and São João do Triunfo in order to build a regional stratigraphic framework. A total of 33 sedimentary facies were recognized and organized in five genetic associations, corresponding to subaqueous outwash fans, rain-out and mud settling, thin-bedded turbidites, mass- transport deposits, and thick-bedded turbidites. The regional stratigraphic correlation allowed the recognition of 5 glacial cycles, corresponding to depositional sequences of deglaciation. They show signs of glacial influence that diminish toward the top, where deltaic deposits developed as climatic conditions improved. Diamictites are present in all areas and distributed preferentially in the lower and middle sequences. They consist of mass- transport deposits with origin attributed to gravitational instability due to sediment accumulation in melting and glacial retreat phases.","PeriodicalId":39973,"journal":{"name":"Anuario do Instituto de Geociencias","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48458913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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