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Carsten Brauckmann - One of the best experts on this subject based on the ideXlab platform.
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The smallest Neoptera (Baryshnyalidae fam. n.) from Hagen-Vorhalle (early Late Carboniferous: Namurian B; Germany)
ZooKeys, 2011Co-Authors: Jan-michael Ilger, Carsten BrauckmannAbstract:With Baryshnyala occultagen. et sp. n. (Baryshnyalidaefam. n.) we report a new small species from early Late Carboniferous (Pennsylvanian) deposits in Hagen-Vorhalle. It differs in its unique venation pattern and small size from all other Neoptera known from this Lagerstatte and other contemporaneous locations worldwide. With an estimated wing length of
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The smallest Neoptera (Baryshnyalidae fam. n.) from Hagen-Vorhalle (early Late Carboniferous: Namurian B; Germany)
Pensoft Publishers, 2011Co-Authors: Jan-michael Ilger, Carsten BrauckmannAbstract:With Baryshnyala occulta gen. et sp. n. (Baryshnyalidae fam. n.) we report a new small species from early Late Carboniferous (Pennsylvanian) deposits in Hagen-Vorhalle. It differs in its unique venation pattern and small size from all other Neoptera known from this Lagerstätte and other contemporaneous locations worldwide. With an estimated wing length of <10mm it is by far the smallest species of Neoptera from Hagen-Vorhalle and is less than half as long as Heterologopsis ruhrensis Brauckmann & Koch, 1982 (~25mm). The specimen shows some relations to the earliest Holometabola and may date back the first appearance of holometaboly to the Namurian B (early Bashkirian: Marsdenian). The new species increases the paleo-biodiversity and span of inter-specific variability within the early Neoptera. It shows that very small and tiny specimens and species can easily be overlooked
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Rasnitsynala sigambrorum gen. et sp. n., a small odonatopterid (“Eomeganisoptera”, “Erasipteridae”) from the early Late Carboniferous of Hagen-Vorhalle (Germany)
Pensoft Publishers, 2011Co-Authors: Wolfgang Zessin, Carsten Brauckmann, Elke GröningAbstract:Besides Erasipteroides valentini (Brauckmann in Brauckmann, Koch & Kemper, 1985), Zessinella siope Brauckmann, 1988, and Namurotypus sippeli Brauckmann & Zessin, 1989, Rasnitsynala sigambrorum gen. et sp. n. is the fourth species of the Odonatoptera from the early Late Carboniferous (Early Pennsylvanian: Namurian B, Marsdenian) deposits of the important Hagen-Vorhalle Konservat-Lagerstätte in Germany. With its wing-span of about 55mm it is unusually small even for the “Eomeganisoptera”. Its venation resembles other small “Eomeganisoptera”, in particular Z. siope. This is why it is here assigned to the probably paraphyletic “Erasipteridae” Carpenter, 1939
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a new trigonotarbid arachnid from the coal measures of hagen vorhalle germany
Fossil Record, 2006Co-Authors: Jason A Dunlop, Carsten BrauckmannAbstract:A new trigonotarbid (Arachnida: Trigonotarbida: Trigonotarbidae) is described as Archaeomartus roessleri n. sp. from the Upper Carboniferous (Pennsylvanian; Namurian B, higher Marsdenian) of Hagen-Vorhalle, Germany. Originally assigned to Trigonotarbus johnsoni Pocock, 1911, our new fossil has a distinctly lobed carapace and thus resembles more closely the Early Devonian species Archaeomartus levis Stormer, 1970. In carapace morphology Archaeomartus approaches the condition seen in the larger and more heavily-armoured taxa Eophrynidae, Kreischeriidae and Aphantomartidae. Thus we provisionally resolve Archaeomartus as sister-group to this probably monophyletic trio of families and discuss the possibility that Trigonotarbidae may be paraphyletic.
Sivek Martin - One of the best experts on this subject based on the ideXlab platform.
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Thickness of the Upper Hrušov Member (Namurian) in the Czech part of the Upper Silesian Basin
'Masaryk University Press', 2013Co-Authors: Beneš Luboš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Map of the thickness of the Upper Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. The thickness varies from 18.69 m up to 669.49 m. Highest values are situated in a NE–SW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. Total thickness of the Upper Hrušov Member is decreasing to the east and shows evident west-east polarity. Western part of the post-erosive area of the Upper Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. Western part of the basin is not preserved due to the post-Carboniferous erosion.Map of the thickness of the Upper Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes' information from the Czech part of the Upper Silesian Basin. The thickness varies from 18.69 m up to 669.49 m. Highest values are situated in a NE–SW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. Total thickness of the Upper Hrušov Member is decreasing to the east and shows evident west-east polarity. Western part of the post-erosive area of the Upper Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. Western part of the basin is not preserved due to the post-Carboniferous erosion
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Coal-bearing capacity of the Upper Hrušov Member (Namurian) in the Czech part of the Upper Silesian Basin
'Masaryk University Press', 2013Co-Authors: Beneš Luboš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Maps of the coal-bearing capacity, number and total thickness of coal seams of the Upper Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.00 % to 2.57 %, and their total thickness from 0.00 m to 9.43 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Upper Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion, similar as in the case of Lower Hrušov Member.Maps of the coal-bearing capacity, number and total thickness of coal seams of the Upper Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.00 % to 2.57 %, and their total thickness from 0.00 m to 9.43 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Upper Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion, similar as in the case of Lower Hrušov Member
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Coal-bearing Capacity of the Lower Hrušov Member (Namurian) in the Czech Part of the Upper Silesian Basin
'Masaryk University Press', 2012Co-Authors: Vebr Lukáš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Maps of the coal-bearing capacity, number and total thickness of coal seams of the Lower Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.71 % to 6.62 %. Number of coal seams thicker than 0.1 m varies from 3 to 43 and their total thickness from 1.17 m to 14.40 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Lower Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion.Maps of the coal-bearing capacity, number and total thickness of coal seams of the Lower Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.71 % to 6.62 %. Number of coal seams thicker than 0.1 m varies from 3 to 43 and their total thickness from 1.17 m to 14.40 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Lower Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion
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Thickness of the Lower Hrušov Member (Namurian) in the Czech Part of the Upper Silesian Basin
'Masaryk University Press', 2012Co-Authors: Vebr Lukáš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Map of the thickness of the Lower Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. The thickness varies from 52.55 m to 415.48 m. The highest values are situated in a NNE–SSW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. The lowest values are reached in the Frenštát area east of the Kozlovice Saddle, in the Mořkov area south of the Janovice Fault and west of the Kozlovice Saddle, and in the Těšín and Karviná areas east of the Orlová Structure. Total thickness of the Lower Hrušov Member is decreasing from the West to the East and shows evident west-east polarity. The western part of the post-erosive area of the Lower Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. The western part of the basin is not preserved due to the post-Carboniferous erosion.Map of the thickness of the Lower Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes' information from the Czech part of the Upper Silesian Basin. The thickness varies from 52.55 m to 415.48 m. The highest values are situated in a NNE–SSW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. The lowest values are reached in the Frenštát area east of the Kozlovice Saddle, in the Mořkov area south of the Janovice Fault and west of the Kozlovice Saddle, and in the Těšín and Karviná areas east of the Orlová Structure. Total thickness of the Lower Hrušov Member is decreasing from the West to the East and shows evident west-east polarity. The western part of the post-erosive area of the Lower Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. The western part of the basin is not preserved due to the post-Carboniferous erosion
Np Mountney - One of the best experts on this subject based on the ideXlab platform.
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palaeohydrological characteristics and palaeogeographic reconstructions of incised valley fill systems insights from the Namurian successions of the united kingdom and ireland
Sedimentology, 2020Co-Authors: Ru Wang, Luca Colombera, Np MountneyAbstract:Namurian (Carboniferous) eustatic fluctuations drove the incision and backfill of shelf‐crossing valley systems located in humid subequatorial regions, which are now preserved in successions of the United Kingdom and Ireland. The infills of these valleys archive the record of palaeoriver systems whose environmental, hydrological and palaeogeographic characteristics remain unclear. A synthesis of sedimentological data from fluvial strata of 18 Namurian incised‐valley fills in the United Kingdom and Ireland is undertaken to elucidate the nature of their formative river systems and to refine regional palaeogeographic reconstructions. Quantitative analyses are performed of facies proportions, of geometries of incised‐valley fills and related architectural elements, and of the thickness of dune‐scale sets of cross‐strata. Reconstruction of the size of the drainage areas that fed these valleys is attempted based on two integrative approaches: flow‐depth estimations from dune‐scale cross‐set thickness statistics and scaling relationships of incised‐valley fill dimensions derived from late‐Quaternary examples. The facies organization of these incised‐valley fills suggests that their formative palaeorivers were perennial and experienced generally low discharge variability, consistent with their climatic context; however, observations of characteristically low variability in cross‐set thickness might reflect rapid flood recession, perhaps in relation to sub‐catchments experiencing seasonal rainfall. Variations in facies characteristics, including inferences of flow regime and cross‐set thickness distributions, might reflect the control of catchment size on river hydrology, the degree to which is considered in light of data from modern rivers. Palaeohydrological reconstructions indicate that depth estimations from cross‐set thickness contrast with observations of barform and channel‐fill thickness, and projected thalweg depths exceed the depth of some valley fills. Limitations in data and interpretations and high bedform preservation are recognized as possible causes. With consideration of uncertainties in the inference of catchment size, the palaeogeography of the valley systems has been tentatively reconstructed by integrating existing provenance and sedimentological data. The approaches illustrated in this work can be replicated to the study of palaeohydrological characteristics and palaeogeographic reconstructions of incised‐valley fills globally and through geological time.
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Palaeohydrological characteristics and palaeogeographic reconstructions of incised‐valley‐fill systems: Insights from the Namurian successions of the United Kingdom and Ireland
'Wiley', 2020Co-Authors: Wang R, Colombera L, Np MountneyAbstract:Namurian (Carboniferous) eustatic fluctuations drove the incision and backfill of shelf‐crossing valley systems located in humid subequatorial regions, which are now preserved in successions of the United Kingdom and Ireland. The infills of these valleys archive the record of palaeoriver systems whose environmental, hydrological and palaeogeographic characteristics remain unclear. A synthesis of sedimentological data from fluvial strata of 18 Namurian incised‐valley fills in the United Kingdom and Ireland is undertaken to elucidate the nature of their formative river systems and to refine regional palaeogeographic reconstructions. Quantitative analyses are performed of facies proportions, of geometries of incised‐valley fills and related architectural elements, and of the thickness of dune‐scale sets of cross‐strata. Reconstruction of the size of the drainage areas that fed these valleys is attempted based on two integrative approaches: flow‐depth estimations from dune‐scale cross‐set thickness statistics and scaling relationships of incised‐valley fill dimensions derived from late‐Quaternary examples. The facies organization of these incised‐valley fills suggests that their formative palaeorivers were perennial and experienced generally low discharge variability, consistent with their climatic context; however, observations of characteristically low variability in cross‐set thickness might reflect rapid flood recession, perhaps in relation to sub‐catchments experiencing seasonal rainfall. Variations in facies characteristics, including inferences of flow regime and cross‐set thickness distributions, might reflect the control of catchment size on river hydrology, the degree to which is considered in light of data from modern rivers. Palaeohydrological reconstructions indicate that depth estimations from cross‐set thickness contrast with observations of barform and channel‐fill thickness, and projected thalweg depths exceed the depth of some valley fills. Limitations in data and interpretations and high bedform preservation are recognized as possible causes. With consideration of uncertainties in the inference of catchment size, the palaeogeography of the valley systems has been tentatively reconstructed by integrating existing provenance and sedimentological data. The approaches illustrated in this work can be replicated to the study of palaeohydrological characteristics and palaeogeographic reconstructions of incised‐valley fills globally and through geological time
Ru Wang - One of the best experts on this subject based on the ideXlab platform.
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palaeohydrological characteristics and palaeogeographic reconstructions of incised valley fill systems insights from the Namurian successions of the united kingdom and ireland
Sedimentology, 2020Co-Authors: Ru Wang, Luca Colombera, Np MountneyAbstract:Namurian (Carboniferous) eustatic fluctuations drove the incision and backfill of shelf‐crossing valley systems located in humid subequatorial regions, which are now preserved in successions of the United Kingdom and Ireland. The infills of these valleys archive the record of palaeoriver systems whose environmental, hydrological and palaeogeographic characteristics remain unclear. A synthesis of sedimentological data from fluvial strata of 18 Namurian incised‐valley fills in the United Kingdom and Ireland is undertaken to elucidate the nature of their formative river systems and to refine regional palaeogeographic reconstructions. Quantitative analyses are performed of facies proportions, of geometries of incised‐valley fills and related architectural elements, and of the thickness of dune‐scale sets of cross‐strata. Reconstruction of the size of the drainage areas that fed these valleys is attempted based on two integrative approaches: flow‐depth estimations from dune‐scale cross‐set thickness statistics and scaling relationships of incised‐valley fill dimensions derived from late‐Quaternary examples. The facies organization of these incised‐valley fills suggests that their formative palaeorivers were perennial and experienced generally low discharge variability, consistent with their climatic context; however, observations of characteristically low variability in cross‐set thickness might reflect rapid flood recession, perhaps in relation to sub‐catchments experiencing seasonal rainfall. Variations in facies characteristics, including inferences of flow regime and cross‐set thickness distributions, might reflect the control of catchment size on river hydrology, the degree to which is considered in light of data from modern rivers. Palaeohydrological reconstructions indicate that depth estimations from cross‐set thickness contrast with observations of barform and channel‐fill thickness, and projected thalweg depths exceed the depth of some valley fills. Limitations in data and interpretations and high bedform preservation are recognized as possible causes. With consideration of uncertainties in the inference of catchment size, the palaeogeography of the valley systems has been tentatively reconstructed by integrating existing provenance and sedimentological data. The approaches illustrated in this work can be replicated to the study of palaeohydrological characteristics and palaeogeographic reconstructions of incised‐valley fills globally and through geological time.
Hýlová Lada - One of the best experts on this subject based on the ideXlab platform.
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Thickness of the Upper Hrušov Member (Namurian) in the Czech part of the Upper Silesian Basin
'Masaryk University Press', 2013Co-Authors: Beneš Luboš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Map of the thickness of the Upper Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. The thickness varies from 18.69 m up to 669.49 m. Highest values are situated in a NE–SW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. Total thickness of the Upper Hrušov Member is decreasing to the east and shows evident west-east polarity. Western part of the post-erosive area of the Upper Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. Western part of the basin is not preserved due to the post-Carboniferous erosion.Map of the thickness of the Upper Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes' information from the Czech part of the Upper Silesian Basin. The thickness varies from 18.69 m up to 669.49 m. Highest values are situated in a NE–SW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. Total thickness of the Upper Hrušov Member is decreasing to the east and shows evident west-east polarity. Western part of the post-erosive area of the Upper Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. Western part of the basin is not preserved due to the post-Carboniferous erosion
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Coal-bearing capacity of the Upper Hrušov Member (Namurian) in the Czech part of the Upper Silesian Basin
'Masaryk University Press', 2013Co-Authors: Beneš Luboš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Maps of the coal-bearing capacity, number and total thickness of coal seams of the Upper Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.00 % to 2.57 %, and their total thickness from 0.00 m to 9.43 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Upper Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion, similar as in the case of Lower Hrušov Member.Maps of the coal-bearing capacity, number and total thickness of coal seams of the Upper Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.00 % to 2.57 %, and their total thickness from 0.00 m to 9.43 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Upper Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion, similar as in the case of Lower Hrušov Member
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Coal-bearing Capacity of the Lower Hrušov Member (Namurian) in the Czech Part of the Upper Silesian Basin
'Masaryk University Press', 2012Co-Authors: Vebr Lukáš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Maps of the coal-bearing capacity, number and total thickness of coal seams of the Lower Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.71 % to 6.62 %. Number of coal seams thicker than 0.1 m varies from 3 to 43 and their total thickness from 1.17 m to 14.40 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Lower Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion.Maps of the coal-bearing capacity, number and total thickness of coal seams of the Lower Hrušov Member (Namurian, Mississippian) were made. They are based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. Absolute coal-bearing capacity varies from 0.71 % to 6.62 %. Number of coal seams thicker than 0.1 m varies from 3 to 43 and their total thickness from 1.17 m to 14.40 m. All mentioned parameters reach their maximum in NNE–SSW trending zone west of the Orlová Structure. This situation supports the hypothesis, that preserved part of the Lower Hrušov Member could form the subsidence axis of the basin and its eastern part whereas the western part is not preserved due to post-Carboniferous erosion
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Thickness of the Lower Hrušov Member (Namurian) in the Czech Part of the Upper Silesian Basin
'Masaryk University Press', 2012Co-Authors: Vebr Lukáš, Jirásek Jakub, Hýlová Lada, Sivek MartinAbstract:Map of the thickness of the Lower Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes´ information from the Czech part of the Upper Silesian Basin. The thickness varies from 52.55 m to 415.48 m. The highest values are situated in a NNE–SSW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. The lowest values are reached in the Frenštát area east of the Kozlovice Saddle, in the Mořkov area south of the Janovice Fault and west of the Kozlovice Saddle, and in the Těšín and Karviná areas east of the Orlová Structure. Total thickness of the Lower Hrušov Member is decreasing from the West to the East and shows evident west-east polarity. The western part of the post-erosive area of the Lower Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. The western part of the basin is not preserved due to the post-Carboniferous erosion.Map of the thickness of the Lower Hrušov Member (Namurian, Mississippian) was made. It is based on exploratory boreholes' information from the Czech part of the Upper Silesian Basin. The thickness varies from 52.55 m to 415.48 m. The highest values are situated in a NNE–SSW trending zone west of the Orlová Structure in the northern part of the Příbor area and in the western part of the Ostrava area. The lowest values are reached in the Frenštát area east of the Kozlovice Saddle, in the Mořkov area south of the Janovice Fault and west of the Kozlovice Saddle, and in the Těšín and Karviná areas east of the Orlová Structure. Total thickness of the Lower Hrušov Member is decreasing from the West to the East and shows evident west-east polarity. The western part of the post-erosive area of the Lower Hrušov Member represents the axis of maximum subsidence of the basin in times of sedimentation. The zone of reduced thickness is the original eastern part of the basin. The western part of the basin is not preserved due to the post-Carboniferous erosion
