Pub Date : 2023-07-20DOI: 10.24425/agp.2020.134557
W. Kennedy
Kennedy, W.J. 2021. On some Turonian and Coniacian ammonites from central Colombia. Acta Geologica Polonica, 71 (3), 259–285. Warszawa. The rich collections of Turonian and Coniacian ammonites from Colombia, housed in the University of California Museum of Paleontology, Berkeley, are described, with 20 species recognized, referred to the genera Reymenticoceras Kennedy, 2018, Vascoceras Choffat, 1898, Fagesia Pervinquière, 1907, Wrightoceras Reyment, 1954a, Subprionocyclus Shimizu, 1932, Subprionotropis Basse, 1951, Prionocycloceras Spath, 1926, Barroisiceras de Grossouvre, 1894, Forresteria Reeside, 1932, Niceforoceras Basse, 1948, Peroniceras de Grossouvre, 1894, Gauthiericeras de Grossouvre, 1894, Protexanites Matsumoto, 1955, and Metaptychoceras Spath, 1926. One species, Reymenticoceras ornatum, is new. Most of the species described can be assigned to the substages and ammonite zones recognized in Western Europe.
肯尼迪，W.J. 2021。来自哥伦比亚中部的一些土伦和科尼亚亚菊石。地质学报，71(3)，259-285。华沙。加州大学伯克利分校古生物博物馆收藏了来自哥伦比亚的丰富的Turonian和Coniacian菊石，其中包括20个物种，分别是Reymenticoceras Kennedy属(2018年)、Vascoceras Choffat属(1898年)、Fagesia pervinquire属(1907年)、Wrightoceras re属(1954年)、Subprionocyclus Shimizu属(1932年)、Subprionocyclus Basse属(1951年)、prionocyclus Spath属(1926年)、Barroisiceras de Grossouvre属(1894年)、Forresteria Reeside属(1932年)、Niceforoceras Basse、1948年，Peroniceras de Grossouvre, 1894年，Gauthiericeras de Grossouvre, 1894年，松本原texanites Matsumoto, 1955年，Metaptychoceras Spath, 1926年。其中一种是新发现的，叫做reymentcoceras ornatum。所描述的大多数种可归属于西欧公认的亚阶段和菊石带。
{"title":"On some Turonian and Coniacian ammonites from central Colombia","authors":"W. Kennedy","doi":"10.24425/agp.2020.134557","DOIUrl":"https://doi.org/10.24425/agp.2020.134557","url":null,"abstract":"Kennedy, W.J. 2021. On some Turonian and Coniacian ammonites from central Colombia. Acta Geologica Polonica, 71 (3), 259–285. Warszawa. The rich collections of Turonian and Coniacian ammonites from Colombia, housed in the University of California Museum of Paleontology, Berkeley, are described, with 20 species recognized, referred to the genera Reymenticoceras Kennedy, 2018, Vascoceras Choffat, 1898, Fagesia Pervinquière, 1907, Wrightoceras Reyment, 1954a, Subprionocyclus Shimizu, 1932, Subprionotropis Basse, 1951, Prionocycloceras Spath, 1926, Barroisiceras de Grossouvre, 1894, Forresteria Reeside, 1932, Niceforoceras Basse, 1948, Peroniceras de Grossouvre, 1894, Gauthiericeras de Grossouvre, 1894, Protexanites Matsumoto, 1955, and Metaptychoceras Spath, 1926. One species, Reymenticoceras ornatum, is new. Most of the species described can be assigned to the substages and ammonite zones recognized in Western Europe.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42222072","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2021.139306
Adrianna Szaruga, K. Mccartney, Jakub Witkowski
: Szaruga, A., McCartney, K. and Witkowski, J. 2022. A silicoflagellate plexus associated with Bachmannocena diodon subsp. nodosa from the Eastern Equatorial Pacific (Ocean Drilling Program Leg 138). Acta Geologica Polonica , 72 (2), 145–158. Warszawa. Upper Miocene (~6 Ma) sediments from a north-south transect of Ocean Drilling Program Holes 848B, 849B, 850B, 851B across the equator in the Eastern Pacific Ocean record an episode of unusual skeletal variability associated with the silicoflagellate Bachmannocena diodon subsp. nodosa (Bukry) Bukry, 1987. Skeletons in this plexus persisted for between 55,000 and 75,000 years and include an arch across a 2-sided basal ring, a highly unusual morphology for the genus. Groups of skeletal morphotypes were common within the plexus episode, and occur in a systematic sequence that is consistent between sites. As a result of this study, silicofla-gellates previously placed in the genus Neonaviculopsis Locker and Martini, 1986 are now considered part of the Bachmannocena diodon subsp. nodosa plexus.
{"title":"A silicoflagellate plexus associated with Bachmannocena diodon subsp. nodosa from the Eastern Equatorial Pacific (Ocean Drilling Program Leg 138)","authors":"Adrianna Szaruga, K. Mccartney, Jakub Witkowski","doi":"10.24425/agp.2021.139306","DOIUrl":"https://doi.org/10.24425/agp.2021.139306","url":null,"abstract":": Szaruga, A., McCartney, K. and Witkowski, J. 2022. A silicoflagellate plexus associated with Bachmannocena diodon subsp. nodosa from the Eastern Equatorial Pacific (Ocean Drilling Program Leg 138). Acta Geologica Polonica , 72 (2), 145–158. Warszawa. Upper Miocene (~6 Ma) sediments from a north-south transect of Ocean Drilling Program Holes 848B, 849B, 850B, 851B across the equator in the Eastern Pacific Ocean record an episode of unusual skeletal variability associated with the silicoflagellate Bachmannocena diodon subsp. nodosa (Bukry) Bukry, 1987. Skeletons in this plexus persisted for between 55,000 and 75,000 years and include an arch across a 2-sided basal ring, a highly unusual morphology for the genus. Groups of skeletal morphotypes were common within the plexus episode, and occur in a systematic sequence that is consistent between sites. As a result of this study, silicofla-gellates previously placed in the genus Neonaviculopsis Locker and Martini, 1986 are now considered part of the Bachmannocena diodon subsp. nodosa plexus.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48538318","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2020.134564
J. Fedorowski
: Fedorowski, J. 2021. Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 11. The Family Pentaphyllidae Schindewolf, 1942 and considerations on the Suborder Tachylasmatina Fedorowski, 1973. Acta Geologica Polonica , 71 (4), 415–431. Warszawa. Inconsistency in the approach to the corals included by different authors in the families Tachylasmatidae Grabau, 1928 and Pentaphyllidae Schindewolf, 1942 are discussed in the context of their relationship vs homeomorphy to the Family Plerophyllidae Koker, 1924. Following Schindewolf (1942), the pentaphylloid or cryptophylloid early ontogeny, typical of the former two families, is contrasted with the zaphrentoid ontogeny typical of the latter family. Comprehensive analysis proves the independent taxonomic position of the Suborder Tachylasmatina Fedorowski, 1973. The taxa described herein support this idea. The relationship of the two families: Tachylasmatidae and Pentaphyllidae within the framework of this suborder are suggested. A new genus left in open nomenclature (represented by a single specimen) and three new species, Pentaphyllum sp. nov. 1, ? Pentaphyllum sp. nov. 2 and Gen. et sp. nov. 1 are described from lower Bashkirian deposits.
{"title":"Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 11. The Family Pentaphyllidae Schindewolf, 1942 and considerations on the Suborder Tachylasmatina Fedorowski, 1973","authors":"J. Fedorowski","doi":"10.24425/agp.2020.134564","DOIUrl":"https://doi.org/10.24425/agp.2020.134564","url":null,"abstract":": Fedorowski, J. 2021. Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 11. The Family Pentaphyllidae Schindewolf, 1942 and considerations on the Suborder Tachylasmatina Fedorowski, 1973. Acta Geologica Polonica , 71 (4), 415–431. Warszawa. Inconsistency in the approach to the corals included by different authors in the families Tachylasmatidae Grabau, 1928 and Pentaphyllidae Schindewolf, 1942 are discussed in the context of their relationship vs homeomorphy to the Family Plerophyllidae Koker, 1924. Following Schindewolf (1942), the pentaphylloid or cryptophylloid early ontogeny, typical of the former two families, is contrasted with the zaphrentoid ontogeny typical of the latter family. Comprehensive analysis proves the independent taxonomic position of the Suborder Tachylasmatina Fedorowski, 1973. The taxa described herein support this idea. The relationship of the two families: Tachylasmatidae and Pentaphyllidae within the framework of this suborder are suggested. A new genus left in open nomenclature (represented by a single specimen) and three new species, Pentaphyllum sp. nov. 1, ? Pentaphyllum sp. nov. 2 and Gen. et sp. nov. 1 are described from lower Bashkirian deposits.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45301985","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2022.140430
Mariola KĄDZIOŁKA-GAWEŁ, M. Dulski, M. Czaja, T. Krzykawski, M. Szubka
: Kądziołka-Gaweł
卡加韦
{"title":"A multi-analytical approach for the analysis of cation distribution in a aluminoceladonite structure","authors":"Mariola KĄDZIOŁKA-GAWEŁ, M. Dulski, M. Czaja, T. Krzykawski, M. Szubka","doi":"10.24425/agp.2022.140430","DOIUrl":"https://doi.org/10.24425/agp.2022.140430","url":null,"abstract":": Kądziołka-Gaweł","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49211371","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2022.142641
R. Macdonald
: Macdonald, R. and Bagiński, B. 2022. Hydrothermal alteration of chevkinite: insights from natural rocks and experiments. Acta Geologica Polonica , 72 (4), 413–421. Warszawa. The contributions of the members of the Department of Geochemistry, Mineralogy and Petrology, University of Warsaw, to the study of the chevkinite-group of minerals (CGM) are described. The range of research topics includes: (i) geochemical and mineralogical studies of natural occurrences of the group, and attempts to relate their chemical composition to host lithology; (ii) detailed analysis of the hydrothermal alteration of CGM in various settings, with the aim of understanding element redistribution and the potential implications for ore formation. An ongoing series of high P-T experiments is providing quantitative information on the pressures, temperatures and melt water conditions under which the alteration assemblages have formed. Various spectroscopic techniques are being used to determine the structure of the CGM and to identify cation distribution in the structures.
: Macdonald, R.和Bagiński, B. 2022。菱铁矿热液蚀变:来自天然岩石和实验的见解。地质学报，72(4)，413-421。华沙。文中叙述了华沙大学地球化学、矿物学和岩石学系成员对雪华矿类矿物研究所作的贡献。研究课题的范围包括:(i)该组自然产状的地球化学和矿物学研究，并试图将其化学成分与宿主岩性联系起来;(ii)详细分析不同环境下CGM的热液蚀变，旨在了解元素再分布及其对成矿的潜在影响。正在进行的一系列高P-T实验提供了有关蚀变组合形成的压力、温度和熔融水条件的定量信息。各种光谱技术被用来确定CGM的结构和确定阳离子在结构中的分布。
{"title":"Hydrothermal alteration of chevkinite: insights from natural rocks and experiments","authors":"R. Macdonald","doi":"10.24425/agp.2022.142641","DOIUrl":"https://doi.org/10.24425/agp.2022.142641","url":null,"abstract":": Macdonald, R. and Bagiński, B. 2022. Hydrothermal alteration of chevkinite: insights from natural rocks and experiments. Acta Geologica Polonica , 72 (4), 413–421. Warszawa. The contributions of the members of the Department of Geochemistry, Mineralogy and Petrology, University of Warsaw, to the study of the chevkinite-group of minerals (CGM) are described. The range of research topics includes: (i) geochemical and mineralogical studies of natural occurrences of the group, and attempts to relate their chemical composition to host lithology; (ii) detailed analysis of the hydrothermal alteration of CGM in various settings, with the aim of understanding element redistribution and the potential implications for ore formation. An ongoing series of high P-T experiments is providing quantitative information on the pressures, temperatures and melt water conditions under which the alteration assemblages have formed. Various spectroscopic techniques are being used to determine the structure of the CGM and to identify cation distribution in the structures.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47264951","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2022.142647
P. Dobak, D. Izdebska-Mucha, Piotr Stajszczak, E. Wojcik, Kamil Kiełbasiński, Ireneusz Gawriuczenkow, Tom Szczepanski, Piotr Zawrzykraj, A. Bąkowska
: Dobak, P., Izdebska-Mucha, D., Stajszczak, P., Wójcik, E., Kiełbasiński, K., Gawriuczenkow, I., Szczepański, T., Zawrzykraj, P. and Bąkowska A. 2022. Effects of hydrocarbon contamination on the engineering geological properties of Neogene clays and Pleistocene glacial tills from Central Poland. Acta Geologica Polonica , 72 (4), 529–555. Warszawa. Petroleum products influence the engineering behaviour of the soil. Neogene clays and glacial tills from Central Poland were tested under laboratory conditions to evaluate the changes of selected physical and mechanical parameters: particle size distribution, particle density, swelling, shear strength and permeability. Four petroleum products were used in the experiments: diesel fuel, kerosene, jet fuel and mineral engine oil. The study revealed that even for the lowest degree of contamination the values of physical and mechanical properties of the soils changed significantly. Greater variation can be expected in soils contaminated with high-viscosity compounds. Also, higher relative changes were found for glacial tills than for Neogene clays. Consolidation tests revealed changes in soil permeability depending on the soil composition and the physical properties of the contaminant – considerable reduction of permeability was observed for glacial tills contaminated with light Jet fuel, while the reduction was lower for Neogene clays. The obtained results indicate the role of mesopores and the dimensionless pore pressure coefficient in changes of soil permeability. The methodological issues regarding testing and analysing the hydrocarbon-contaminated soils were also presented and discussed, which might be useful for researchers studying contaminated soils.
{"title":"Effects of hydrocarbon contamination on the engineering geological properties of Neogene clays and Pleistocene glacial tills from Central Poland","authors":"P. Dobak, D. Izdebska-Mucha, Piotr Stajszczak, E. Wojcik, Kamil Kiełbasiński, Ireneusz Gawriuczenkow, Tom Szczepanski, Piotr Zawrzykraj, A. Bąkowska","doi":"10.24425/agp.2022.142647","DOIUrl":"https://doi.org/10.24425/agp.2022.142647","url":null,"abstract":": Dobak, P., Izdebska-Mucha, D., Stajszczak, P., Wójcik, E., Kiełbasiński, K., Gawriuczenkow, I., Szczepański, T., Zawrzykraj, P. and Bąkowska A. 2022. Effects of hydrocarbon contamination on the engineering geological properties of Neogene clays and Pleistocene glacial tills from Central Poland. Acta Geologica Polonica , 72 (4), 529–555. Warszawa. Petroleum products influence the engineering behaviour of the soil. Neogene clays and glacial tills from Central Poland were tested under laboratory conditions to evaluate the changes of selected physical and mechanical parameters: particle size distribution, particle density, swelling, shear strength and permeability. Four petroleum products were used in the experiments: diesel fuel, kerosene, jet fuel and mineral engine oil. The study revealed that even for the lowest degree of contamination the values of physical and mechanical properties of the soils changed significantly. Greater variation can be expected in soils contaminated with high-viscosity compounds. Also, higher relative changes were found for glacial tills than for Neogene clays. Consolidation tests revealed changes in soil permeability depending on the soil composition and the physical properties of the contaminant – considerable reduction of permeability was observed for glacial tills contaminated with light Jet fuel, while the reduction was lower for Neogene clays. The obtained results indicate the role of mesopores and the dimensionless pore pressure coefficient in changes of soil permeability. The methodological issues regarding testing and analysing the hydrocarbon-contaminated soils were also presented and discussed, which might be useful for researchers studying contaminated soils.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45077940","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2020.134568
D. P. Plax, M. Newman
Plax, D.P. and Newman, M. 2021. Middle Devonian acanthodians from Belarus – new data and interregional biostratigraphy. Acta Geologica Polonica, 71 (4), 393–414. Warszawa. The Lower Devonian (Emsian) and Middle Devonian of Belarus contain assemblages of biostratigraphically useful faunal and floral microremains. Surface deposits are few, with most material being derived from borehole cores. Acanthodian scales are particularly numerous and comparison with scales from other regions of the Old Red Sandstone continent (Laurussia), specifically the Orcadian Basin of Scotland, the Baltic Region, Spitsbergen, and Severnaya Zemlya have demonstrated a lot of synonymy of acanthodian species between these areas. This is especially the case between Belarus, the Orcadian Basin and the Baltic Region, which has allowed us to produce an interregional biostratigraphic scheme, as well as to postulate marine connection routes between these areas. The acanthodian biostratigraphy of Belarus is particularly important as it is associated with spores and marine invertebrates, so giving the potential of more detailed correlations across not only the Old Red Sandstone continent, but elsewhere in the Devonian world. We also demonstrate that differences in preservation (e.g., wear and how articulated a specimen is) is one of the main reasons for synonymy.
Plax, D.P.和Newman, M. 2021。白俄罗斯中泥盆世棘足动物——新资料和区域间生物地层学。地质学报，71(4)，393-414。华沙。白俄罗斯的下泥盆世(Emsian)和中泥盆世包含生物地层学上有用的动物和植物微遗骸组合。地表沉积物很少，大部分物质来自钻孔岩心。棘棘虫的鳞片特别多，与旧红砂岩大陆(Laurussia)的其他地区，特别是苏格兰的Orcadian Basin、波罗的海地区、斯匹次卑尔根岛和Severnaya Zemlya的鳞片相比，这些地区的棘棘虫物种有很多同义。白俄罗斯、奥卡迪亚盆地和波罗的海地区之间的情况尤其如此，这使我们能够制定一个区域间生物地层方案，并设想这些地区之间的海洋连接路线。白俄罗斯棘虫生物地层学特别重要，因为它与孢子和海洋无脊椎动物有关，因此不仅可以在旧红砂岩大陆上，而且可以在泥盆纪世界的其他地方提供更详细的相关性。我们还证明了保存的差异(例如，磨损和标本的铰接方式)是同义词的主要原因之一。
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Pub Date : 2023-07-20DOI: 10.24425/agp.2022.142649
Michał Czernielewski
: Czernielewski, M. 2023. A new species of Hystrix (Rodentia: Hystricidae) from the Pliocene site of Węże 1 in southern Poland. Acta Geologica Polonica , 73 (1), 73–83. Warszawa. The specific name velunensis is established to encompass porcupine remains ( Hystrix Linnæus, 1758) recovered from the Pliocene site of Węże 1 in southern Poland. The studied specimen was previously assigned either to H . primigenia (Wagner, 1848) or H. depereti Sen, 2001, however it can be distinguished from these species and other fossil Hystricidae by its distinct occlusal morphology, most importantly the presence of an anterolingual flexus dissecting the anteroloph of P4. Hystrix velunensis sp. nov. was probably closely related to H. primigenia and H. depereti . A previously undescribed specimen from the nearby site of Węże 2 most probably belongs to H . refossa Gervais, 1852b, which would be the first known occurrence of this species in Poland.
{"title":"A new species of Hystrix (Rodentia: Hystricidae) from the Pliocene site of Węże 1 in southern Poland","authors":"Michał Czernielewski","doi":"10.24425/agp.2022.142649","DOIUrl":"https://doi.org/10.24425/agp.2022.142649","url":null,"abstract":": Czernielewski, M. 2023. A new species of Hystrix (Rodentia: Hystricidae) from the Pliocene site of Węże 1 in southern Poland. Acta Geologica Polonica , 73 (1), 73–83. Warszawa. The specific name velunensis is established to encompass porcupine remains ( Hystrix Linnæus, 1758) recovered from the Pliocene site of Węże 1 in southern Poland. The studied specimen was previously assigned either to H . primigenia (Wagner, 1848) or H. depereti Sen, 2001, however it can be distinguished from these species and other fossil Hystricidae by its distinct occlusal morphology, most importantly the presence of an anterolingual flexus dissecting the anteroloph of P4. Hystrix velunensis sp. nov. was probably closely related to H. primigenia and H. depereti . A previously undescribed specimen from the nearby site of Węże 2 most probably belongs to H . refossa Gervais, 1852b, which would be the first known occurrence of this species in Poland.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44043454","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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2022.142648
Paweł Rydelek, A. Bąkowska, Krzysztof Cabalski
: Zawrzykraj, P., Rydelek., P., Bąkowska, A. and Cabalski, K. 2022. Ettringite as a factor causing structural strengthening of fluvial sand from the Praski terrace (Warsaw, Poland). Acta Geologica Polonica , 72 (4), 519–528. Warszawa. Engineering activity may lead to uncontrolled changes in the geological environment. This paper presents an example of structural changes in fluvial sand of the Praski terrace (in Warsaw) caused by the activity of a temporary concrete batching plant. Our investigations made it possible to identify the material responsible for the structural anomalies observed in the bottom of the trench excavation. The compound responsible for the cementation phenomenon was identified as ettringite – hydrated calcium aluminosulphate: Ca 6 Al 2 [(OH) 12 (SO 4 ) 3 ]·26H 2 O. The source of ettringite were most probably significant volumes of contaminants coming from the temporary concrete batching plant (e.g., from the rinsing of concrete mixers and/or installations for concrete storage and transportation). While penetrating into the ground, ettringite caused extensive cementation of the soil mass, mainly in the saturation zone. As a result, the mineral (chemical) composition of the inter-grain space changed and the structure of the sand was strengthened. The estimated zone of volumetric changes in soil properties was about 6 thousand m 3 . However, analysis of the chemical composition of groundwater for its potential sulphate contamination, did not reveal any anomalous concentrations of sulphates.
: Zawrzykraj, P.， Rydelek。， P, Bąkowska, A.和Cabalski, K. 2022。钙矾石是造成普拉斯基阶地河流砂结构强化的一个因素(波兰华沙)。地质学报，72(4)，519-528。华沙。工程活动可能导致地质环境发生不可控制的变化。本文介绍了一个由临时混凝土配料厂的活动引起的普拉斯基阶地(华沙)河流砂结构变化的例子。我们的调查使我们有可能确定造成沟槽挖掘底部观察到的结构异常的物质。造成胶结现象的化合物被确定为钙矾石-水合硫酸铝钙:Ca 6 Al 2 [(OH) 12 (so4) 3]·26h2o。钙矾石的来源很可能是来自临时混凝土配料厂的大量污染物(例如，来自混凝土搅拌器的冲洗和/或混凝土储存和运输装置)。钙矾石在入土过程中，主要在饱和带引起大面积的土体胶结。其结果是改变了粒间空间的矿物(化学)组成，加强了砂土的结构。估计土壤性质的体积变化区约为6 000立方米。然而，对地下水化学成分的分析，其潜在的硫酸盐污染，没有发现任何异常的硫酸盐浓度。
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Pub Date : 2023-07-20DOI: 10.24425/agp.2021.137709
Małgorzata Cegiełka, B. Bagiński, R. Macdonald, Beata Marciniak-Maliszewska, M. Stachowicz
: Cegiełka, M., Bagiński, B., Macdonald, R., Marciniak-Maliszewska, B. and Stachowicz, M. 2022. Ba-Fe tita - nates in peralkaline granite of the Ilímaussaq Complex, South Greenland. Acta Geologica Polonica , 72 (1), 1−8. A peralkaline granite of the Ilímaussaq Complex, South Greenland, contains the rare mineral henrymeye rite [(Ba 0.92 Na 0.05 Ca 0.03 ) 1.0 (Ti 6.87 Fe 2+1.04 Nb 0.03 ) 7.9 O 16 ], a low-Fe Ba titanate [(Ba 0.74 Ca 0.02 Na 0.05 ) 0.8 (Ti 4.9o Fe 2+0.15 Nb 0.04 ) 5.1 O 11 ], and an unidentified Ba titanosilicate. Both titanates show the coupled substitution 2Na + + Si 4+ → Ba 2+ + Ti 4+ . The minerals are present as tiny crystals fringing ilmenite inclusions in an amphibole crystal and are thought to have formed during the hydrothermal stage of the granite’s evolution.
: Cegiełka, M.， Bagiński, B.， Macdonald, R.， Marciniak-Maliszewska, B.和Stachowicz, M. 2022。南格陵兰岛Ilímaussaq杂岩的过碱性花岗岩中的Ba-Fe钛矿。地质学报，72(1)，1−8。南格陵兰岛Ilímaussaq杂岩的过碱性花岗岩含有稀有矿物henrymeye rite [(Ba 0.92 Na 0.05 Ca 0.03) 1.0 (Ti 6.87 Fe 2+1.04 Nb 0.03) 7.9 O 16]、低铁Ba钛酸盐[(Ba 0.74 Ca 0.02 Na 0.05) 0.8 (Ti 4.90 Fe 2+0.15 Nb 0.04) 5.1 O 11]和未识别的Ba钛硅酸盐。两种钛酸盐均表现为2Na + + si4 +→ba2 + + ti4 +的偶联取代。这些矿物以微小晶体的形式存在于闪洞晶体中钛铁矿包裹体的边缘，被认为是在花岗岩演化的热液阶段形成的。
{"title":"Ba-Fe titanates in peralkaline granite of the Ilímaussaq Complex, South Greenland","authors":"Małgorzata Cegiełka, B. Bagiński, R. Macdonald, Beata Marciniak-Maliszewska, M. Stachowicz","doi":"10.24425/agp.2021.137709","DOIUrl":"https://doi.org/10.24425/agp.2021.137709","url":null,"abstract":": Cegiełka, M., Bagiński, B., Macdonald, R., Marciniak-Maliszewska, B. and Stachowicz, M. 2022. Ba-Fe tita - nates in peralkaline granite of the Ilímaussaq Complex, South Greenland. Acta Geologica Polonica , 72 (1), 1−8. A peralkaline granite of the Ilímaussaq Complex, South Greenland, contains the rare mineral henrymeye rite [(Ba 0.92 Na 0.05 Ca 0.03 ) 1.0 (Ti 6.87 Fe 2+1.04 Nb 0.03 ) 7.9 O 16 ], a low-Fe Ba titanate [(Ba 0.74 Ca 0.02 Na 0.05 ) 0.8 (Ti 4.9o Fe 2+0.15 Nb 0.04 ) 5.1 O 11 ], and an unidentified Ba titanosilicate. Both titanates show the coupled substitution 2Na + + Si 4+ → Ba 2+ + Ti 4+ . The minerals are present as tiny crystals fringing ilmenite inclusions in an amphibole crystal and are thought to have formed during the hydrothermal stage of the granite’s evolution.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42143427","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}
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