Single-zircon U-Pb dating of Carboniferous-Permian tuffs, Namibia, and the intercontinental deglaciation cycle framework

Stollhofen, Harald; Werner, Mario; Stanistreet, Ian G.; Armstrong, Richard

doi:10.1130/2008.2441(06)

Cited by 43 publications

(67 citation statements)

References 38 publications

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“…Notably, the stepwise long-term onlap through the later half of the Moscovian and Kasimovian (Stage VI) coincides with the interval for which chronostratigraphically well-constrained high-latitude successions indicate the restriction of ice sheets to one or possibly three discrete intervals in the Kalahari-Karoo (Stollhofen et al, 2008) and Parana (Holz et al, 2008) basins. The current uncertainty in age of the older deglaciation sequences in southern Africa (DS-1 & 2 on Fig.…”

Section: Paleotropical -High-latitude Linkagesmentioning

confidence: 82%

“…14) correspond broadly with the timing of glacial maxima and minima inferred from high-latitude Gondwanan basins. To date, chronostratigraphically well-constrained glacigenic deposits and glacial features are limited to northwestern Argentina (Gulbranson et al, 2010), eastern Australia , and southern Africa (Stollhofen et al, 2008). The timing of glaciation in the Parana Basin, Brazil, which may have involved up to nine discrete cycles of glacial advance and retreat (Holz et al, 2008), remains poorly resolved, with estimates ranging from latest Mississippian through Early Permian (Rocha-Campos et al, 2008;Holz et al, 2010).…”

Section: Paleotropical -High-latitude Linkagesmentioning

confidence: 99%

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Sequence stratigraphy and onlap history of the Donets Basin, Ukraine: Insight into Carboniferous icehouse dynamics

Eros

Montañez

Osleger

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

145

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The degree to which Permo-Carboniferous cyclothemic successions archive evidence for longterm 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 highlatitude 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 everwet conditions during lowstands and inferred glacial maxima and drier climate during onlap and inferred ice sheet contraction at the intermediate (~0.8 to 1.6 my) and long (10 6 yr) time-scales. Taken together, the relationship between inferred climate and glacioeustasy suggests a likely teleconnection between high-latitude ice sheet behavior and low-latitude atmospheric dynamics.

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Section: Paleotropical -High-latitude Linkagesmentioning

confidence: 82%

Section: Paleotropical -High-latitude Linkagesmentioning

confidence: 99%

Sequence stratigraphy and onlap history of the Donets Basin, Ukraine: Insight into Carboniferous icehouse dynamics

Eros

Montañez

Osleger

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

145

View full text Add to dashboard Cite

show abstract

“…These ice-free basins were polar, indicating a largely ice-free southern pole during this interval Fielding et al, 2008aFielding et al, , 2008bFielding et al, , 2008cIsbell et al, 2008b). In subpolar settings, Desmoinesian to Virgilian ice is currently reported from several basins: the Paraná, Karoo-Kalahari, the Arabian Peninsula, and possibly the Congo (Rocha- Campos et al, 2008;Holtz et al, 2008;Isbell et al, 2003aIsbell et al, , 2008aStollhofen et al, 2008;Martin et al, 2008). However, ice fl ow directions in these basins require multiple ice sheets (e.g., Isbell et al, 2008a), likely at least fi ve to seven (J.…”

Section: Implications For Reconstructing the Late Paleozoic Record Ofmentioning

confidence: 93%

Dynamic Carboniferous climate change, Arrow Canyon, Nevada

2010

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The Phanerozoic's longest-lived and most widespread glaciation, the late Paleozoic ice age, is undergoing a resurgence in interest. Long-held models of the timing, duration, and magnitude of glaciation are being reevaluated due to emerging evidence from former high latitudes, evidence that the late Paleozoic ice age was punctuated by long-lived glacial minima or possibly ice-free times.The history of the late Paleozoic ice age is archived within the biostratigraphically well-constrained, carbonate-dominated succession of Arrow Canyon, Nevada, United States. In this paleo-tropical succession, the distribution of lithofacies, fl ooding surfaces, and subaerial exposure horizons and their stacking into meter-scale cycles record a detailed climate history. The onset of this phase of glaciation during the middle Mississippian was followed by a dynamic evolution of glacioeustasy through the late Mississippian to late Pennsylvanian. Moderate-to high-amplitude glacioeustasy was likely interrupted by an earliest Pennsylvanian short-lived glacial minimum, but otherwise appears to have persisted through the middle Pennsylvanian.Upper Pennsylvanian strata record lowto moderate-amplitude relative sea-level changes, suggesting a long-lived interval of diminished ice volume. This proposed glacial minimum is coincident with a notable minimum in glaciogenic sedimentation near the former southern pole, aridifi cation across paleo-tropical Pangea, and signifi cant fl oral and faunal turnover, suggesting a link between tropical environmental change and high-latitude glaciation. These conclusions, however, are at odds with those traditionally inferred from Euramerican cyclothems, i.e., persistent high-amplitude glacioeustasy driven by a single, large ice sheet. Rather, the Arrow Canyon archive of varying depositional facies and cycle stacking patterns records major changes in the magnitude of short-term glacioeustasy. This fi nding contributes to recent and growing near-and farfi eld evidence for a more dynamic glaciation history than previously inferred from the classic Euramerican cyclothems.

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“…Beds equivalent to the uppermost Prince Albert Formation in Namibia have yielded an age of ca. 279 Ma (Stollhofen et al, 2008). An age of ca.…”

Section: Ellsworth Mountainsmentioning

confidence: 94%

The Gondwana Plate margin in the Weddell Sea sector: Zircon geochronology of Upper Paleozoic (mainly Permian) strata from the Ellsworth Mountains and eastern Ellsworth Land, Antarctica

Elliot

Laudon

2016

Gondwana Research

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Single-zircon U-Pb dating of Carboniferous-Permian tuffs, Namibia, and the intercontinental deglaciation cycle framework

Cited by 43 publications

References 38 publications

Sequence stratigraphy and onlap history of the Donets Basin, Ukraine: Insight into Carboniferous icehouse dynamics

Sequence stratigraphy and onlap history of the Donets Basin, Ukraine: Insight into Carboniferous icehouse dynamics

Dynamic Carboniferous climate change, Arrow Canyon, Nevada

The Gondwana Plate margin in the Weddell Sea sector: Zircon geochronology of Upper Paleozoic (mainly Permian) strata from the Ellsworth Mountains and eastern Ellsworth Land, Antarctica

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