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。
{"title":"Ettringite as a factor causing structural strengthening of fluvial sand from the Praski terrace (Warsaw, Poland)","authors":"Paweł Rydelek, A. Bąkowska, Krzysztof Cabalski","doi":"10.24425/agp.2022.142648","DOIUrl":"https://doi.org/10.24425/agp.2022.142648","url":null,"abstract":": 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.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41323065","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.2021.137709
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":null,"pages":null},"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}
Pub Date : 2023-07-20DOI: 10.24425/agp.2022.142642
J. Dzierżek, L. Lindner, R. Chlebowski, M. Szymanek, Andriy Bogucki, O. Tomeniuk
: Dzierżek, J., Lindner, L., Chlebowski, R., Szymanek, M., Bogucki, A. and Tomeniuk, O. 2022. Depositional conditions of the Upper Younger Loess during the Last Glacial Maximum in central and eastern Europe. Acta Geologica Polonica , 72 (4), 369–389. Warszawa. This paper is a summary of the results of research on the accumulation conditions of the Upper Younger Loess (LMg) in Poland and Bug loess (bg) in Ukraine from the maximum stage (MIS 2) of the Vistulian (Weichselian) Glaciation in central and eastern Europe. These studies included an analysis of the morphological (topographic) situation of the loess cover, its grain size and heavy mineral composition, the preserved structures of loess sed - imentation as well as mollusc and pollen analyses of this loess. They revealed that the accumulation of Upper Younger Loess (UYL) might have been more dependent on the prevailing moisture conditions than previously thought. These conditions could have been caused by cold air masses from an ice sheet and warm air masses from the Mediterranean Sea and Atlantic coming together in the Carpathians and the Holy Cross Mountains and favouring the formation of dust storms and precipitation. In this process, a loading of loess dust (formed from local rocks weathering in periglacial conditions) by atmospheric moisture particles was especially significant. The moist substrate not only favoured the periodic development of vegetation and molluscs but also enabled the interception of dust and the accumulation of an increasingly thick loess cover. Westerly and south-westerly winds predominated in the UYL as indicated by the topographic position of loess patches and the mineral composition of the studied loess. Periodically an increased air circulation from the east and northeast occurred.
{"title":"Depositional conditions of the Upper Younger Loess during the Last Glacial Maximum in central and eastern Europe","authors":"J. Dzierżek, L. Lindner, R. Chlebowski, M. Szymanek, Andriy Bogucki, O. Tomeniuk","doi":"10.24425/agp.2022.142642","DOIUrl":"https://doi.org/10.24425/agp.2022.142642","url":null,"abstract":": Dzierżek, J., Lindner, L., Chlebowski, R., Szymanek, M., Bogucki, A. and Tomeniuk, O. 2022. Depositional conditions of the Upper Younger Loess during the Last Glacial Maximum in central and eastern Europe. Acta Geologica Polonica , 72 (4), 369–389. Warszawa. This paper is a summary of the results of research on the accumulation conditions of the Upper Younger Loess (LMg) in Poland and Bug loess (bg) in Ukraine from the maximum stage (MIS 2) of the Vistulian (Weichselian) Glaciation in central and eastern Europe. These studies included an analysis of the morphological (topographic) situation of the loess cover, its grain size and heavy mineral composition, the preserved structures of loess sed - imentation as well as mollusc and pollen analyses of this loess. They revealed that the accumulation of Upper Younger Loess (UYL) might have been more dependent on the prevailing moisture conditions than previously thought. These conditions could have been caused by cold air masses from an ice sheet and warm air masses from the Mediterranean Sea and Atlantic coming together in the Carpathians and the Holy Cross Mountains and favouring the formation of dust storms and precipitation. In this process, a loading of loess dust (formed from local rocks weathering in periglacial conditions) by atmospheric moisture particles was especially significant. The moist substrate not only favoured the periodic development of vegetation and molluscs but also enabled the interception of dust and the accumulation of an increasingly thick loess cover. Westerly and south-westerly winds predominated in the UYL as indicated by the topographic position of loess patches and the mineral composition of the studied loess. Periodically an increased air circulation from the east and northeast occurred.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46831883","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.2020.134562
A. Waśkowska, J. Golonka, K. Starzec, M. Cieszkowski
The Campanian–Paleocene Jaworzynka Formation, a part of the Magura Nappe succession in the Polish Outer Carpathians, is described in terms of its detailed litho- and biostratigraphy. The formation stretches along the marginal part of the Siary Unit, from the Jaworzynka stratotype area in the Silesian Beskid Mts up to the Mszana Dolna area in the Beskid Wyspowy Mts. Its equivalent in the Moravskoslezske Beskydy Mts of the Czech Republic is the Solaň Formation. In the stratotype area, the formation displays complex structure. We distinguish four lithological units, i.e. Biotite Sandstone and Shale (I), Shale (II), Mutne Sandstone Member (III) and Thin-bedded Turbidite (IV) and provide the first detailed biostratigraphy of particular units. The first unit forms the most prominent part of the formation. It was deposited in the Middle Campanian–earliest Maastrichtian within the upper part of Caudammina gigantea Zone up to the lower part of the Rzehakina inclusa Zone. The second unit occurs only locally and its age is limited to the Maastrichtian, to the Rzehakina inclusa Zone. The third unit is composed of thick-bedded sandstones that in some parts may form more than the half of the total thickness of the formation. It is Late Maastrichtian–Danian in age and is placed in the upper part of the Rzehakina inclusa Zone and the lower part of the Rzehakina fissistomata Zone. It is usually covered by a thin package of thin-bedded turbiditic sandstone and shales of Danian–Thanetian age with foraminifera of the Rzehakina fissistomata Zone.
{"title":"Campanian–Paleocene Jaworzynka Formation in its type area (Magura Nappe, Outer Carpathians)","authors":"A. Waśkowska, J. Golonka, K. Starzec, M. Cieszkowski","doi":"10.24425/AGP.2020.134562","DOIUrl":"https://doi.org/10.24425/AGP.2020.134562","url":null,"abstract":"The Campanian–Paleocene Jaworzynka Formation, a part of the Magura Nappe succession in the Polish Outer Carpathians, is described in terms of its detailed litho- and biostratigraphy. The formation stretches along the marginal part of the Siary Unit, from the Jaworzynka stratotype area in the Silesian Beskid Mts up to the Mszana Dolna area in the Beskid Wyspowy Mts. Its equivalent in the Moravskoslezske Beskydy Mts of the Czech Republic is the Solaň Formation. In the stratotype area, the formation displays complex structure. We distinguish four lithological units, i.e. Biotite Sandstone and Shale (I), Shale (II), Mutne Sandstone Member (III) and Thin-bedded Turbidite (IV) and provide the first detailed biostratigraphy of particular units. The first unit forms the most prominent part of the formation. It was deposited in the Middle Campanian–earliest Maastrichtian within the upper part of Caudammina gigantea Zone up to the lower part of the Rzehakina inclusa Zone. The second unit occurs only locally and its age is limited to the Maastrichtian, to the Rzehakina inclusa Zone. The third unit is composed of thick-bedded sandstones that in some parts may form more than the half of the total thickness of the formation. It is Late Maastrichtian–Danian in age and is placed in the upper part of the Rzehakina inclusa Zone and the lower part of the Rzehakina fissistomata Zone. It is usually covered by a thin package of thin-bedded turbiditic sandstone and shales of Danian–Thanetian age with foraminifera of the Rzehakina fissistomata Zone.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46815095","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.2022.140433
Chan-gyu Yun
: Yun, C.G. 2023. A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs. Acta Geologica Polonica , 73 (1), 63–72. Warszawa. A right theropod pedal ungual phalanx II-3 from the Campanian Williams Fork Formation of northwestern Colorado is described, and a combination of features, including the large size, tapering distal tip, robust and stout overall form, triangular cross-section, and a relatively flat ventral surface allows a confident referral to Tyrannosauridae Osborn, 1906. Although this specimen was found in a relatively southern state, the proximal articular surface of this ungual is similar to that of Gorgosaurus libratus Lambe, 1914, a taxon found in the northern state, Alberta. Although based on limited evidence, this may suggest that the range of tyrannosaurids considered endemic to the north of Laramidia extended farther south than previously thought.
{"title":"A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs","authors":"Chan-gyu Yun","doi":"10.24425/agp.2022.140433","DOIUrl":"https://doi.org/10.24425/agp.2022.140433","url":null,"abstract":": Yun, C.G. 2023. A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs. Acta Geologica Polonica , 73 (1), 63–72. Warszawa. A right theropod pedal ungual phalanx II-3 from the Campanian Williams Fork Formation of northwestern Colorado is described, and a combination of features, including the large size, tapering distal tip, robust and stout overall form, triangular cross-section, and a relatively flat ventral surface allows a confident referral to Tyrannosauridae Osborn, 1906. Although this specimen was found in a relatively southern state, the proximal articular surface of this ungual is similar to that of Gorgosaurus libratus Lambe, 1914, a taxon found in the northern state, Alberta. Although based on limited evidence, this may suggest that the range of tyrannosaurids considered endemic to the north of Laramidia extended farther south than previously thought.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47521316","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.2022.143595
Marek Vďačný
: Vďačný, M. and Michalík, J. 2023. Provenance of quartz debris in the Central Western Carpathians at the end of the Triassic, as indicated by cathodoluminescence colours. Acta Geologica Polonica , 73 (1), 103–114. Warszawa. Lithic fragments including quartz grains occur infrequently in the shallow-marine limestone sequence of the Fatra Formation deposited in the tensional intra-shelf depression of the Central Western Carpathians during the Rhaetian. Nevertheless, their study can bring data answering questions of sources, palaeogeodynamic arrange - ment, and processes at the end of the Triassic. In this study, we examined optically the cathodoluminescence (CL) colours of single quartz grains from the Kardolína section (Tatra Mts, Slovakia). These colours reveal a dominance of grains derived from regionally metamorphosed and plutonic rocks. Grains of hydrothermal and pegmatite origin are less frequent. Some of the quartz grains show recycled cement rims suggesting at least a second cycle origin. This sedimentary basin was situated near to the passive margin formed by the Variscan consolidated terrains of the Vindelician Highlands. Our study of the CL colours of quartz grains contributes to the elucidation of the nature of the rocks of the vanished Vindelician mountain belt.
{"title":"Provenance of quartz debris in the Central Western Carpathians at the end of the Triassic, as indicated by cathodoluminescence colours","authors":"Marek Vďačný","doi":"10.24425/agp.2022.143595","DOIUrl":"https://doi.org/10.24425/agp.2022.143595","url":null,"abstract":": Vďačný, M. and Michalík, J. 2023. Provenance of quartz debris in the Central Western Carpathians at the end of the Triassic, as indicated by cathodoluminescence colours. Acta Geologica Polonica , 73 (1), 103–114. Warszawa. Lithic fragments including quartz grains occur infrequently in the shallow-marine limestone sequence of the Fatra Formation deposited in the tensional intra-shelf depression of the Central Western Carpathians during the Rhaetian. Nevertheless, their study can bring data answering questions of sources, palaeogeodynamic arrange - ment, and processes at the end of the Triassic. In this study, we examined optically the cathodoluminescence (CL) colours of single quartz grains from the Kardolína section (Tatra Mts, Slovakia). These colours reveal a dominance of grains derived from regionally metamorphosed and plutonic rocks. Grains of hydrothermal and pegmatite origin are less frequent. Some of the quartz grains show recycled cement rims suggesting at least a second cycle origin. This sedimentary basin was situated near to the passive margin formed by the Variscan consolidated terrains of the Vindelician Highlands. Our study of the CL colours of quartz grains contributes to the elucidation of the nature of the rocks of the vanished Vindelician mountain belt.","PeriodicalId":7030,"journal":{"name":"Acta Geologica Polonica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47351288","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.2023.145617
Andrzej Kozłowski, Witold Matyszczak
: Kozłowski, A. and
: Kozłowski, A.和
{"title":"Native silver in the eastern part of the Karkonosze granitoid pluton, Lower Silesia, Poland","authors":"Andrzej Kozłowski, Witold Matyszczak","doi":"10.24425/agp.2023.145617","DOIUrl":"https://doi.org/10.24425/agp.2023.145617","url":null,"abstract":": Kozłowski, A. and","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":"48728973","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.2022.143600
J. Dunlop, V. Dernov
: Dunlop, J.A. and Dernov, V.S. 2023. The first trigonotarbid arachnid from Ukraine. Acta Geologica Polonica , 73 (2), 181–187. Warszawa. The extinct arachnid order Trigonotarbida Petrunkevitch, 1949 is reported here for the first time from Ukraine. The material consists of an opisthosoma preserved in ventral view from the upper Carboniferous (lower Moscovian; Paralegoceras – Eowellerites ammonoid zone) of the Gorlivka locality in the Donets Basin, eastern Ukraine. Formal assignment to a family or genus is difficult, but the preserved ventral anatomy is consistent with a member of the families Aphantomartidae Petrunkevitch, 1945, Kreischeriidae Haase, 1890 or Eophrynidae Karsch, 1882. It is noteworthy for expanding the known distribution of trigonotarbids in Europe and is only the second Palaeozoic arachnid to be formally described from Ukraine; the other being the carapace of a whip scorpion (Thelyphonida Latreille, 1804) from Lomovatka in the Luhansk Region, also in the Donets Basin.
{"title":"The first trigonotarbid arachnid from Ukraine","authors":"J. Dunlop, V. Dernov","doi":"10.24425/agp.2022.143600","DOIUrl":"https://doi.org/10.24425/agp.2022.143600","url":null,"abstract":": Dunlop, J.A. and Dernov, V.S. 2023. The first trigonotarbid arachnid from Ukraine. Acta Geologica Polonica , 73 (2), 181–187. Warszawa. The extinct arachnid order Trigonotarbida Petrunkevitch, 1949 is reported here for the first time from Ukraine. The material consists of an opisthosoma preserved in ventral view from the upper Carboniferous (lower Moscovian; Paralegoceras – Eowellerites ammonoid zone) of the Gorlivka locality in the Donets Basin, eastern Ukraine. Formal assignment to a family or genus is difficult, but the preserved ventral anatomy is consistent with a member of the families Aphantomartidae Petrunkevitch, 1945, Kreischeriidae Haase, 1890 or Eophrynidae Karsch, 1882. It is noteworthy for expanding the known distribution of trigonotarbids in Europe and is only the second Palaeozoic arachnid to be formally described from Ukraine; the other being the carapace of a whip scorpion (Thelyphonida Latreille, 1804) from Lomovatka in the Luhansk Region, also in the Donets Basin.","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":"44920877","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：