Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics
The degree to which Permo-Carboniferous cyclothemic successions archive evidence for long-term variations in ice volume during the Late Paleozoic Ice Age is insufficiently resolved. Here we develop the sequence stratigraphy and onlap-offlap history for a 33-my interval of the Carboniferous using the...
Main Authors: | , , , , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
ScholarWorks
2012
|
Subjects: | |
Online Access: | https://scholarworks.boisestate.edu/geo_facpubs/108 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1108/viewcontent/Davydov___Sequence_stratigraphyLWEdit.pdf |
id |
ftboisestateu:oai:scholarworks.boisestate.edu:geo_facpubs-1108 |
---|---|
record_format |
openpolar |
spelling |
ftboisestateu:oai:scholarworks.boisestate.edu:geo_facpubs-1108 2023-10-29T02:37:10+01:00 Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics Eros, J. M. Montañez, I. P. Osleger, D. A. Davydov, Vladimir Nemyrovska, T. I. Poletaev, V. I. Zhykalyak, M. V. 2012-01-01T08:00:00Z application/pdf https://scholarworks.boisestate.edu/geo_facpubs/108 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1108/viewcontent/Davydov___Sequence_stratigraphyLWEdit.pdf unknown ScholarWorks https://scholarworks.boisestate.edu/geo_facpubs/108 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1108/viewcontent/Davydov___Sequence_stratigraphyLWEdit.pdf NOTICE: This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version has been published in Palaeogeography, Palaeoclimatology, Palaeoecology , 2012. DOI: 10.1016/j.palaeo.2011.08.019 Geosciences Faculty Publications and Presentations Donets Basin cyclothems sequences Carboniferous sea level glacioeustasy Carboniferous paleoclimate orbital forcing CGISS Earth Sciences Geophysics and Seismology text 2012 ftboisestateu 2023-09-29T15:08:19Z The degree to which Permo-Carboniferous cyclothemic successions archive evidence for long-term variations in ice volume during the Late Paleozoic Ice Age is insufficiently resolved. Here we develop the sequence stratigraphy and onlap-offlap history for a 33-my interval of the Carboniferous using the U-Pb calibrated succession of the Donets Basin, Ukraine, in order to assess the relationship between sea-level, high-latitude changes in glacial extent, and climate. Integrated subsurface and outcrop data permit meter-scale correlation of 242 biostratigraphically constrained limestones and coals, and in turn individual cyclothems, across ~250 km of the Donets Basin. Rapid uniform subsidence and basinwide continuity of marker beds indicate Pennsylvanian deposition under relatively stable tectonic conditions. Three scales of sequences (avg. durations of ~140 ky, ~480 ky and 1.6 my) are recognized on the basis of stratigraphic stacking patterns and basinwide architecture of marine to terrestrial facies assemblages. The hierarchy of sequences and the geographic and stratigraphic positions of shifts in base-level sensitive facies across the Donets ramp permit the construction of an onlap-offlap history at a sub-400 ky scale. Major sea-level lowstands occur across the mid-Carboniferous boundary and during the early Moscovian. These lowstands coincide with glacial maxima inferred from high-latitude glacigenic deposits. The middle to late Pennsylvanian is characterized by a stepwise onlap, culminating in an earliest Gzhelian highstand, suggesting contraction of Carboniferous ice sheets prior to the initiation of Early Permian glaciation. The stratigraphic position of climate sensitive facies within individual Donets cyclothems indicates a turnover from seasonal sub-humid or semi-arid climate to everwet conditions during the late lowstand and maximum ice sheet accumulation. Comparison of the stratigraphic and aerial distribution of coals and evaporites in the Donets Basin with the onlap-offlap history further indicates ... Text Ice Sheet Boise State University: Scholar Works |
institution |
Open Polar |
collection |
Boise State University: Scholar Works |
op_collection_id |
ftboisestateu |
language |
unknown |
topic |
Donets Basin cyclothems sequences Carboniferous sea level glacioeustasy Carboniferous paleoclimate orbital forcing CGISS Earth Sciences Geophysics and Seismology |
spellingShingle |
Donets Basin cyclothems sequences Carboniferous sea level glacioeustasy Carboniferous paleoclimate orbital forcing CGISS Earth Sciences Geophysics and Seismology Eros, J. M. Montañez, I. P. Osleger, D. A. Davydov, Vladimir Nemyrovska, T. I. Poletaev, V. I. Zhykalyak, M. V. Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
topic_facet |
Donets Basin cyclothems sequences Carboniferous sea level glacioeustasy Carboniferous paleoclimate orbital forcing CGISS Earth Sciences Geophysics and Seismology |
description |
The degree to which Permo-Carboniferous cyclothemic successions archive evidence for long-term variations in ice volume during the Late Paleozoic Ice Age is insufficiently resolved. Here we develop the sequence stratigraphy and onlap-offlap history for a 33-my interval of the Carboniferous using the U-Pb calibrated succession of the Donets Basin, Ukraine, in order to assess the relationship between sea-level, high-latitude changes in glacial extent, and climate. Integrated subsurface and outcrop data permit meter-scale correlation of 242 biostratigraphically constrained limestones and coals, and in turn individual cyclothems, across ~250 km of the Donets Basin. Rapid uniform subsidence and basinwide continuity of marker beds indicate Pennsylvanian deposition under relatively stable tectonic conditions. Three scales of sequences (avg. durations of ~140 ky, ~480 ky and 1.6 my) are recognized on the basis of stratigraphic stacking patterns and basinwide architecture of marine to terrestrial facies assemblages. The hierarchy of sequences and the geographic and stratigraphic positions of shifts in base-level sensitive facies across the Donets ramp permit the construction of an onlap-offlap history at a sub-400 ky scale. Major sea-level lowstands occur across the mid-Carboniferous boundary and during the early Moscovian. These lowstands coincide with glacial maxima inferred from high-latitude glacigenic deposits. The middle to late Pennsylvanian is characterized by a stepwise onlap, culminating in an earliest Gzhelian highstand, suggesting contraction of Carboniferous ice sheets prior to the initiation of Early Permian glaciation. The stratigraphic position of climate sensitive facies within individual Donets cyclothems indicates a turnover from seasonal sub-humid or semi-arid climate to everwet conditions during the late lowstand and maximum ice sheet accumulation. Comparison of the stratigraphic and aerial distribution of coals and evaporites in the Donets Basin with the onlap-offlap history further indicates ... |
format |
Text |
author |
Eros, J. M. Montañez, I. P. Osleger, D. A. Davydov, Vladimir Nemyrovska, T. I. Poletaev, V. I. Zhykalyak, M. V. |
author_facet |
Eros, J. M. Montañez, I. P. Osleger, D. A. Davydov, Vladimir Nemyrovska, T. I. Poletaev, V. I. Zhykalyak, M. V. |
author_sort |
Eros, J. M. |
title |
Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
title_short |
Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
title_full |
Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
title_fullStr |
Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
title_full_unstemmed |
Sequence Stratigraphy and Onlap History of the Donets Basin, Ukraine: Insight into Carboniferous Icehouse Dynamics |
title_sort |
sequence stratigraphy and onlap history of the donets basin, ukraine: insight into carboniferous icehouse dynamics |
publisher |
ScholarWorks |
publishDate |
2012 |
url |
https://scholarworks.boisestate.edu/geo_facpubs/108 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1108/viewcontent/Davydov___Sequence_stratigraphyLWEdit.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geosciences Faculty Publications and Presentations |
op_relation |
https://scholarworks.boisestate.edu/geo_facpubs/108 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1108/viewcontent/Davydov___Sequence_stratigraphyLWEdit.pdf |
op_rights |
NOTICE: This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version has been published in Palaeogeography, Palaeoclimatology, Palaeoecology , 2012. DOI: 10.1016/j.palaeo.2011.08.019 |
_version_ |
1781061603445178368 |