Pub Date : 2023-06-27DOI: 10.24425/agp.2022.143599
S. Skompski, Anna Kozłowska, Wojciech Kozłowski, P. Łuczyński
: Skompski, S., Kozłowska, A., Kozłowski, W. and Łuczyński, P. 2023. Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine). Acta Geologica Polonica , 73 (2), 115–133. Warszawa. This contribution presents the record of an abundant assemblage of well-preserved, thallophytic noncalcified algae and of an epibiotic form that has been recognised as a putative graptolite from the upper Silurian (Ludlow, Gorstian–Ludfordian) of Podolia (western part of Ukraine). The sediments represent a shallow peritidal zone of the shelf. A new genus and species, Voronocladus dryganti , belonging to the Dasycladales Pascher, 1931, is established. Most of the specimens representing the algal thallus are overgrown by problematical epibiotic graptolites, described as Podoliagraptus algaeoides gen. et sp. nov. This phenomenon is explained as an epi - phytic mode of life of the putative graptolite on algae, and is herein compared to recently known coexistences of algae with other organisms. The excellent state of preservation, and the abundance of studied Dasycladales algae and epibiotic problematics indicate that the investigated mudstone layer can be treated as a ‘Konservat Lagerstätte’ sensu Seilacher (1970).
{"title":"Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine)","authors":"S. Skompski, Anna Kozłowska, Wojciech Kozłowski, P. Łuczyński","doi":"10.24425/agp.2022.143599","DOIUrl":"https://doi.org/10.24425/agp.2022.143599","url":null,"abstract":": Skompski, S., Kozłowska, A., Kozłowski, W. and Łuczyński, P. 2023. Coexistence of algae and a graptolite-like problematicum: a case study from the late Silurian of Podolia (Ukraine). Acta Geologica Polonica , 73 (2), 115–133. Warszawa. This contribution presents the record of an abundant assemblage of well-preserved, thallophytic noncalcified algae and of an epibiotic form that has been recognised as a putative graptolite from the upper Silurian (Ludlow, Gorstian–Ludfordian) of Podolia (western part of Ukraine). The sediments represent a shallow peritidal zone of the shelf. A new genus and species, Voronocladus dryganti , belonging to the Dasycladales Pascher, 1931, is established. Most of the specimens representing the algal thallus are overgrown by problematical epibiotic graptolites, described as Podoliagraptus algaeoides gen. et sp. nov. This phenomenon is explained as an epi - phytic mode of life of the putative graptolite on algae, and is herein compared to recently known coexistences of algae with other organisms. The excellent state of preservation, and the abundance of studied Dasycladales algae and epibiotic problematics indicate that the investigated mudstone layer can be treated as a ‘Konservat Lagerstätte’ sensu Seilacher (1970).","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43156914","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 : 2023-06-27DOI: 10.24425/agp.2022.143597
Alireza Sadeghi, Saeid Hakimi Asiabar, N. Nezafati, Alireza Ganji, Soumyajit Mukherjee
: Sadeghi, A., Asiabar, S.H., Nezafati, N., Ganji, A. and Mukherjee, S. 2023. Interaction between tectonics, plu-tonism and mineralization of the Duna Pb-Ba ore deposit regarding fluid inclusion study (Central Alborz, Iran). Acta Geologica Polonica , 73 (2), 201–222. Warszawa. This article discusses the impacts of overprinting of tectonic and plutonic events on the mineralization of the Duna Pb-Ba ore deposit, according to geologic settings and fluid inclusion studies. The Duna carbonate-hosted deposit contains a significant amount of Ag (18.9–264.3 ppm ), Cu (77–41600 ppm), Sb (32.7–11000 ppm), Sr (63.5– 15100 ppm), and Fluid inclusions with 7.34–23.65 wt.% NaCl equivalent. The homogenization temperature of about 110–285°C, as well as the paragenesis of the minerals shows a difference compared with other Pb-Zn deposits such as the Irish-type and MVT. The ore mineralization in the Duna mine occurred as stratabound, open space-filling, and along the brecciated fault zones. The concordant (stratabound) type of mineralization, with salinity and homogenization temperature of 18.54 to 23.65 wt.% NaCl equivalent, and 113°C to 165°C respectively, is usually typical of MVT-ore deposits, which in this area evolved during the Early Cimmerian orogeny and was later interrupted by mineralization along younger brecciated fault zones with salinity and homogenization temperature of 7.34 to 23.65 wt.% NaCl equivalent, and 113°C to 285°C respectively. This discordant mineralization, which occurred along the faults, formed by the end of the Late Cretaceous and during the Cenozoic as a result of the intrusion of a plutonic mass, and is comparable to the Irish-type ore deposits.
{"title":"Interaction between tectonics, plutonism and mineralization of the Duna Pb-Ba ore deposit regarding fluid inclusion study (Central Alborz, Iran)","authors":"Alireza Sadeghi, Saeid Hakimi Asiabar, N. Nezafati, Alireza Ganji, Soumyajit Mukherjee","doi":"10.24425/agp.2022.143597","DOIUrl":"https://doi.org/10.24425/agp.2022.143597","url":null,"abstract":": Sadeghi, A., Asiabar, S.H., Nezafati, N., Ganji, A. and Mukherjee, S. 2023. Interaction between tectonics, plu-tonism and mineralization of the Duna Pb-Ba ore deposit regarding fluid inclusion study (Central Alborz, Iran). Acta Geologica Polonica , 73 (2), 201–222. Warszawa. This article discusses the impacts of overprinting of tectonic and plutonic events on the mineralization of the Duna Pb-Ba ore deposit, according to geologic settings and fluid inclusion studies. The Duna carbonate-hosted deposit contains a significant amount of Ag (18.9–264.3 ppm ), Cu (77–41600 ppm), Sb (32.7–11000 ppm), Sr (63.5– 15100 ppm), and Fluid inclusions with 7.34–23.65 wt.% NaCl equivalent. The homogenization temperature of about 110–285°C, as well as the paragenesis of the minerals shows a difference compared with other Pb-Zn deposits such as the Irish-type and MVT. The ore mineralization in the Duna mine occurred as stratabound, open space-filling, and along the brecciated fault zones. The concordant (stratabound) type of mineralization, with salinity and homogenization temperature of 18.54 to 23.65 wt.% NaCl equivalent, and 113°C to 165°C respectively, is usually typical of MVT-ore deposits, which in this area evolved during the Early Cimmerian orogeny and was later interrupted by mineralization along younger brecciated fault zones with salinity and homogenization temperature of 7.34 to 23.65 wt.% NaCl equivalent, and 113°C to 285°C respectively. This discordant mineralization, which occurred along the faults, formed by the end of the Late Cretaceous and during the Cenozoic as a result of the intrusion of a plutonic mass, and is comparable to the Irish-type ore deposits.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41288114","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 : 2023-06-27DOI: 10.24425/agp.2023.145615
A. Bahrami, À. Ossó, M. Yazdi, Heshmatollah Ansari
: Bahrami, A., Ossó, À., Yazdi, M. and Ansar, H. 2023. Oligocene crabs (Decapoda: Brachyura) from the Asmari Formation in Yasuj area (SW Iran). Acta Geologica Polonica , 73 (2), 189–200. Warszawa. New findings of crustacean decapod brachyurans from the Rupelian period (lower Oligocene) in Iran are presented in this study. In particular, Lophoranina sp. and Palaeocarpilius cf. P. rugifer Stoliczka, 1871, from the Rupelian strata were found in two previously unexplored localities, Abshar and Vezg near Yasuj in the south-western region of Iran. The discovery contributes to fill the gap in the record of brachyuran decapod crustaceans in Iran during the Eocene and Miocene periods. The presence of both genera in the Oligocene of Iran suggests a certain degree of faunal similarity among brachyurans on both sides of the Tethys Realm.
: Bahrami, A. Ossó， À。，杨建军，杨建军，2009。伊朗西南部Yasuj地区Asmari组渐新世蟹类(十足目:短肢目)。地质学报，73(2)，189-200。华沙。本文报道了伊朗鲁贝利期(下渐新世)甲壳类十足类短爪动物的新发现。特别是，在伊朗西南部Yasuj附近的Abshar和Vezg两个以前未勘探过的地方，发现了来自鲁佩利亚地层的Lophoranina sp.和Palaeocarpilius cf. P. rugifer Stoliczka, 1871。这一发现有助于填补伊朗始新世和中新世短肢十足甲壳类动物记录的空白。这两个属在伊朗渐新世的存在表明，在特提斯王国两侧的短肢龙之间存在一定程度的动物相似性。
{"title":"Oligocene crabs (Decapoda: Brachyura) from the Asmari Formation in Yasuj area (SW Iran)","authors":"A. Bahrami, À. Ossó, M. Yazdi, Heshmatollah Ansari","doi":"10.24425/agp.2023.145615","DOIUrl":"https://doi.org/10.24425/agp.2023.145615","url":null,"abstract":": Bahrami, A., Ossó, À., Yazdi, M. and Ansar, H. 2023. Oligocene crabs (Decapoda: Brachyura) from the Asmari Formation in Yasuj area (SW Iran). Acta Geologica Polonica , 73 (2), 189–200. Warszawa. New findings of crustacean decapod brachyurans from the Rupelian period (lower Oligocene) in Iran are presented in this study. In particular, Lophoranina sp. and Palaeocarpilius cf. P. rugifer Stoliczka, 1871, from the Rupelian strata were found in two previously unexplored localities, Abshar and Vezg near Yasuj in the south-western region of Iran. The discovery contributes to fill the gap in the record of brachyuran decapod crustaceans in Iran during the Eocene and Miocene periods. The presence of both genera in the Oligocene of Iran suggests a certain degree of faunal similarity among brachyurans on both sides of the Tethys Realm.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44396255","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 : 2023-06-27DOI: 10.24425/agp.2023.145616
Christopher Vincent Jeans
: Jeans, C.V. 2023. A marker band folgen stratigraphy for the Cenomanian Chalk of England and its extension to northen Germany and France. Acta Geologica Polonica , 73 (2), 135–180. Warszawa. A novel stratigraphical scheme within the Folge Concept is described for the Cenomanian Chalk of England that is particularly suitable for investigating the regional changes in the lithofacies, diagenesis, geochemistry, and mineralogy of the sediments of the Chalk Sea leading up to the Cenomanian–Turonian Oceanic Anoxic Event. It is based on “isochronous” marker bands defined largely by calcitic macrofossil assemblages, and it avoids problems caused by the poor or non-preservation of ammonite assemblages and lateral changes in chalk lithofacies. Eight folgen are based on one, two, or more marker bands. Their sequences, lithologies and calcitic macrofossil assemblages are described from 33 exposures in the Northern Chalk Province of England. The folgen are named, in ascending order, the Belchford, Stenigot, Dalby, Bigby, Candlesby, Nettleton, Louth and Flixton, after villages in Lincolnshire and Yorkshire, England. The folgen are traced throughout the Transitional and Southern Chalk provinces of England. They are present in the Cenomanian chalk of northern Germany and northwest France. Regionally, an individual folge may display considerable vertical and lateral variation in general lithology and lithofacies whilst still maintaining their defining marker bands. The possibility of further refinement to the scheme is discussed.
{"title":"A marker band folgen stratigraphy for the Cenomanian Chalk of England and its extension to northen Germany and France","authors":"Christopher Vincent Jeans","doi":"10.24425/agp.2023.145616","DOIUrl":"https://doi.org/10.24425/agp.2023.145616","url":null,"abstract":": Jeans, C.V. 2023. A marker band folgen stratigraphy for the Cenomanian Chalk of England and its extension to northen Germany and France. Acta Geologica Polonica , 73 (2), 135–180. Warszawa. A novel stratigraphical scheme within the Folge Concept is described for the Cenomanian Chalk of England that is particularly suitable for investigating the regional changes in the lithofacies, diagenesis, geochemistry, and mineralogy of the sediments of the Chalk Sea leading up to the Cenomanian–Turonian Oceanic Anoxic Event. It is based on “isochronous” marker bands defined largely by calcitic macrofossil assemblages, and it avoids problems caused by the poor or non-preservation of ammonite assemblages and lateral changes in chalk lithofacies. Eight folgen are based on one, two, or more marker bands. Their sequences, lithologies and calcitic macrofossil assemblages are described from 33 exposures in the Northern Chalk Province of England. The folgen are named, in ascending order, the Belchford, Stenigot, Dalby, Bigby, Candlesby, Nettleton, Louth and Flixton, after villages in Lincolnshire and Yorkshire, England. The folgen are traced throughout the Transitional and Southern Chalk provinces of England. They are present in the Cenomanian chalk of northern Germany and northwest France. Regionally, an individual folge may display considerable vertical and lateral variation in general lithology and lithofacies whilst still maintaining their defining marker bands. The possibility of further refinement to the scheme is discussed.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47308025","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 : 2023-04-03DOI: 10.24425/agp.2022.142645
: Krogulec, E., Gruszczyński, T., Kowalczyk, S., Małecki, J.J., Mieszkowski, R., Porowska, D., Sawicka, K., Trzeciak, J., Wojdalska, A., Zabłocki, S. and Zaszewski, D. 2022. Causes of groundwater level and chemistry changes in an urban area; a case study of Warsaw, Poland. Acta Geologica Polonica , 72 (4), 495–517. Warszawa. The presented studies focus on changes in groundwater levels and chemistry, and the identification of important factors influencing these changes on short-and long-term scales in urban areas. The results may be useful for rational and sustainable groundwater planning and management in cities. The studies concerned three aquifers: (1) the shallow Quaternary aquifer, (2) the deep Quaternary aquifer, and (3) the Oligocene aquifer in the capital city of Warsaw (Poland). The spatial variability of groundwater recharge was determined and its changes in time were characterized. The characteristics of groundwater levels were based on long-term monitoring series. The results indicate that urban development has caused overall reduction in infiltration recharge (from 54 to 51 mm/ year), which is particularly clear in the city suburbs and in its centre, where land development has significantly densified during the last 30 years. Studies of groundwater levels indicate variable long-term trends. However, for the shallowest aquifer, the trends indicate a gradual decrease of the groundwater levels. In the case of the much deeper Oligocene aquifer, groundwater table rise is observed since the 1970s (averagely c. 20 m), which is related with excessive pumping. Based on the studied results, the groundwater chemistry in the subsurface aquifer indicates strong anthropogenic influence, which is reflected in multi-ionic hydrogeochemical types and the occurrence of chemical tracers typical of human activity. The Oligocene aquifer is characterized by a chemical composition indicating the influence of geogenic factors.
{"title":"Causes of groundwater level and chemistry changes in an urban area; a case study of Warsaw, Poland","authors":"","doi":"10.24425/agp.2022.142645","DOIUrl":"https://doi.org/10.24425/agp.2022.142645","url":null,"abstract":": Krogulec, E., Gruszczyński, T., Kowalczyk, S., Małecki, J.J., Mieszkowski, R., Porowska, D., Sawicka, K., Trzeciak, J., Wojdalska, A., Zabłocki, S. and Zaszewski, D. 2022. Causes of groundwater level and chemistry changes in an urban area; a case study of Warsaw, Poland. Acta Geologica Polonica , 72 (4), 495–517. Warszawa. The presented studies focus on changes in groundwater levels and chemistry, and the identification of important factors influencing these changes on short-and long-term scales in urban areas. The results may be useful for rational and sustainable groundwater planning and management in cities. The studies concerned three aquifers: (1) the shallow Quaternary aquifer, (2) the deep Quaternary aquifer, and (3) the Oligocene aquifer in the capital city of Warsaw (Poland). The spatial variability of groundwater recharge was determined and its changes in time were characterized. The characteristics of groundwater levels were based on long-term monitoring series. The results indicate that urban development has caused overall reduction in infiltration recharge (from 54 to 51 mm/ year), which is particularly clear in the city suburbs and in its centre, where land development has significantly densified during the last 30 years. Studies of groundwater levels indicate variable long-term trends. However, for the shallowest aquifer, the trends indicate a gradual decrease of the groundwater levels. In the case of the much deeper Oligocene aquifer, groundwater table rise is observed since the 1970s (averagely c. 20 m), which is related with excessive pumping. Based on the studied results, the groundwater chemistry in the subsurface aquifer indicates strong anthropogenic influence, which is reflected in multi-ionic hydrogeochemical types and the occurrence of chemical tracers typical of human activity. The Oligocene aquifer is characterized by a chemical composition indicating the influence of geogenic factors.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45941998","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 : 2020-11-27DOI: 10.24425/agp.2020.134554
A. Chakraborty, Amit K. Ghosh, K. Mccartney, S. Saxena, R. Dee, L. Roy
The present contribution provides a study of calcareous nannofossils and siliceous microfossils from the Sawai Bay Formation on Car Nicobar Island, northern Indian Ocean. Two stratigraphically short sediment intervals near Sawai Bay have been examined. Qualitative and quantitative microfossil analyses show the Sawai Bay ‘A’ Section to be devoid of siliceous microfossils, while 24 well-preserved calcareous nannofossil taxa are identified. The Sawai Bay ‘B’ Section yields 18 calcareous nannofossil, 33 radiolarian and 25 diatom taxa. The calcareous nannofossil index taxa ( Ceratolithus armatus Muller, 1974a and C. cristatus Kamptner, 1950) indicate both sections to be from zones NN12 (CN10b) and NN13 (CN10c) of early Pliocene (Zanclean) age. The radiolarian taxa, i.e., Didymocyrtis avita Riedel, 1953, Euchitonia spp., Siphocampe lineata (Ehrenberg) Nigrini, 1977, Stichocorys peregrina Riedel, 1953, Semantis spp. and Stylochlamydium sp. are common in the Sawai Bay ‘B’ Section, which is assigned to Zone RN9. Most of the diatom taxa are represented by representatives of the genera Actinocyclus Ehrenberg, 1837, Azpeitia Peragallo in Tempere and Peragallo, 1912, Coscinodiscus Ehrenberg, 1839a, Grammatophora Ehrenberg, 1841 and Triceratium Ehrenberg, 1839b, with the benthic diatom species Triceratium favus Ehrenberg, 1839b being predominant (~35% of the total diatom count). Siliceous microfossils are also represented by silicoflagellates dominated by Dictyocha spp. and sponge spicules dominated by astrophorids.
{"title":"Early Pliocene calcareous and siliceous microfossils of the Sawai Bay Formation, Car Nicobar Island, northern Indian Ocean","authors":"A. Chakraborty, Amit K. Ghosh, K. Mccartney, S. Saxena, R. Dee, L. Roy","doi":"10.24425/agp.2020.134554","DOIUrl":"https://doi.org/10.24425/agp.2020.134554","url":null,"abstract":"The present contribution provides a study of calcareous nannofossils and siliceous microfossils from the Sawai Bay Formation on Car Nicobar Island, northern Indian Ocean. Two stratigraphically short sediment intervals near Sawai Bay have been examined. Qualitative and quantitative microfossil analyses show the Sawai Bay ‘A’ Section to be devoid of siliceous microfossils, while 24 well-preserved calcareous nannofossil taxa are identified. The Sawai Bay ‘B’ Section yields 18 calcareous nannofossil, 33 radiolarian and 25 diatom taxa. The calcareous nannofossil index taxa ( Ceratolithus armatus Muller, 1974a and C. cristatus Kamptner, 1950) indicate both sections to be from zones NN12 (CN10b) and NN13 (CN10c) of early Pliocene (Zanclean) age. The radiolarian taxa, i.e., Didymocyrtis avita Riedel, 1953, Euchitonia spp., Siphocampe lineata (Ehrenberg) Nigrini, 1977, Stichocorys peregrina Riedel, 1953, Semantis spp. and Stylochlamydium sp. are common in the Sawai Bay ‘B’ Section, which is assigned to Zone RN9. Most of the diatom taxa are represented by representatives of the genera Actinocyclus Ehrenberg, 1837, Azpeitia Peragallo in Tempere and Peragallo, 1912, Coscinodiscus Ehrenberg, 1839a, Grammatophora Ehrenberg, 1841 and Triceratium Ehrenberg, 1839b, with the benthic diatom species Triceratium favus Ehrenberg, 1839b being predominant (~35% of the total diatom count). Siliceous microfossils are also represented by silicoflagellates dominated by Dictyocha spp. and sponge spicules dominated by astrophorids.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2020-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41865498","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 : 2020-11-19DOI: 10.24425/agp.2020.132261
A. Wysocka, E. Głowniak, M. Szulczewski, S. Rudowski, J. Giżejewski, P. Karnkowski, J. Pinińska, G. Pieńkowski, Stanisław Skompski, E. Słaby, A. Kalinowska, G. Sawicki
Piotr Roniewicz was born in 1936 in Warsaw, however his family roots were in Stanislawow (nowadays Ivano-Frankivsk, Ukraine). He completed his university studies at the Faculty of Geology of the University of Warsaw in 1959, gaining a Master’s Degree. He began his geological career at this Faculty already as a 4th year student. In 1981–1984 he was the Vice-Dean and later in 1984–1990 – the Dean of the Faculty. Professor Roniewicz worked there until his retirement in 2006.
Piotr Roniewicz于1936年出生于华沙，但他的家庭根源在Stanislawow(今乌克兰Ivano-Frankivsk)。1959年，他在华沙大学地质学院完成了大学学业，获得硕士学位。作为一名四年级学生，他已经在这个学院开始了他的地质生涯。1981-1984年任副院长，1984-1990年任院长。Roniewicz教授在那里一直工作到2006年退休。
{"title":"Professor Piotr Roniewicz (1936–2019). In memoriam","authors":"A. Wysocka, E. Głowniak, M. Szulczewski, S. Rudowski, J. Giżejewski, P. Karnkowski, J. Pinińska, G. Pieńkowski, Stanisław Skompski, E. Słaby, A. Kalinowska, G. Sawicki","doi":"10.24425/agp.2020.132261","DOIUrl":"https://doi.org/10.24425/agp.2020.132261","url":null,"abstract":"Piotr Roniewicz was born in 1936 in Warsaw, however his family roots were in Stanislawow (nowadays Ivano-Frankivsk, Ukraine). He completed his university studies at the Faculty of Geology of the University of Warsaw in 1959, gaining a Master’s Degree. He began his geological career at this Faculty already as a 4th year student. In 1981–1984 he was the Vice-Dean and later in 1984–1990 – the Dean of the Faculty. Professor Roniewicz worked there until his retirement in 2006.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48320831","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 : 2020-11-19DOI: 10.24425/agp.2019.126462
Ewa Nosowska
Over three thousand specimens representing the superfamily Trochoidea Rafinesque, 1815 [Trochidae Rafinesque, 1815 and Calliostomatidae Thiele, 1924 (1847)] from the upper Upper Badenian = Kosovian = lower Serravallian (middle Miocene) marine deposits of Ukraine, housed in the collections of the Polish Academy of Sciences Museum of the Earth in Warsaw (MZ), are studied herein. The abundant material has allowed for investigations of the intraspecific variation and revision of earlier determinations. As a result, 21 species belonging to 5 genera have been identified, described and illustrated, of which one is new [Clanculus (Clanculopsis) krachi sp. nov.] and one is left in open nomenclature. Granulifera O. Anistratenko, 2000 is considered a junior subjective synonym of Clanculopsis Monterosato, 1879; Granulifera pulla O. Anistratenko, 2000 is considered a junior subjective synonym of Monodonta tuberculata Eichwald, 1830; Gibbula sytovae Amitrov, 1961 is considered a junior subjective synonym of Trochus miocaenicus Mayer, 1853; Gibbula volhynica Friedberg, 1928 is considered a junior subjective synonym of Trochus novemcinctus von Buch, 1830; and Trochus buchii du Bois de Montpereux, 1831 is suppressed in favour of the senior subjective synonym Trochus puschii Andrzejowski, 1830. The geographic distribution and stratigraphic ranges of the taxa are given. Six species are known only from the Polish-Ukrainian part of the Fore-Carpathian Basin. The protoconch features are systematically studied in the Trochidae and Calliostomatidae from this area for the first time.
本文研究了位于华沙(MZ)的波兰科学院地球博物馆收藏的来自乌克兰上巴德尼亚(upper Badenian) =科索沃(Kosovian) =下塞拉瓦利亚(Serravallian)(中新世中期)海洋沉积物的超过3000个代表超科Trochoidea Rafinesque, 1815 [Trochidae Rafinesque, 1815和Calliostomatidae Thiele, 1924(1847)]的标本。丰富的材料允许调查种内变异和修订早期的决定。结果，鉴定、描述和说明了5属21种，其中1种为新属[Clanculus (clcullopsis) krachi sp. 11 .]， 1种为开放命名法。Granulifera O. Anistratenko, 2000被认为是clculopsis的初级主观同义词，Monterosato, 1879;Granulifera pulla O. Anistratenko, 2000被认为是Monodonta tuberculata Eichwald, 1830的初级主观同义词;Gibbula sytovae Amitrov, 1961年被认为是Trochus miocaenicus Mayer, 1853年的初级主观同义词;Gibbula volhynica Friedberg, 1928年被认为是Trochus novemcintus von Buch, 1830年的初级主观同义词;和Trochus buchii du Bois de Montpereux, 1831被压制，以支持高级主观同义词Trochus puschii Andrzejowski, 1830。给出了该分类群的地理分布和地层范围。六种只在前喀尔巴阡盆地的波兰-乌克兰部分被发现。本文首次系统地研究了该地区原海螺科和石口科的原海螺特征。
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Pub Date : 2020-11-19DOI: 10.24425/agp.2020.134555
C. Jeans, I. M. Platten
Rare erratic clasts – extraneous rock types – occur in the Upper Cretaceous Chalk, including a local basal facies, the Cambridge Greensand. The underlying Upper Albian Gault Clay and the Hunstanton Red Chalk Formations have also yielded erratics. The discovery of these erratics, their description and the development of hypotheses to explain their origins and significance are reviewed. They became the subject of scientific interest with the interpretation of a particularly large example “The Purley Boulder” by Godwin-Austen (1858) as having been transported to its depositional site in the Chalk Sea by drifting coastal ice. Thin section petrography (1930–1951) extended knowledge of their diverse provenance. At the same time the Chalk Sea had become interpreted as warm, so drifting ice was considered out of context, and the preferred agents of transport were entanglement in the roots of drifting trees, as holdfasts of floating marine algae, or as stomach stones of marine reptiles or large fish. Reconsideration of their occurrence, variable nature and sedimentary setting suggests that there are three zones in the English Chalk where erratics may be less rare (1) near the base of the Cenomanian in the Cambridge area, (2) the Upper Cenomanian–Middle Turonian in Surrey, and (3) the Upper Coniacian and Lower Santonian of Kent. The assemblage from each level and their sedimentary setting is subtly different. Present evidence suggests that the erratics found in the Upper Albian–Lower Cenomanian and the Upper Cenomanian–Middle Turonian zones represent shallow water and shoreline rocks that were transported into the Chalk Sea by coastal ice (fast-ice) that enclosed coastal marine sediments as it froze. The Upper Coniacian and Lower Santonian erratics from Rochester and Gravesend in Kent are gastroliths.
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