Late Devonian–earliest Mississippian glaciation in Gondwanaland and its biogeographic consequences

Isaacson, Peter E.; Díaz-Martínez, Enrique; Grader, George W.; Kalvoda, Jiří; Bábek, Ondřej; Devuyst, François-Xavier

doi:10.1016/j.palaeo.2008.03.047

Cited by 196 publications

(104 citation statements)

References 24 publications

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“…The min i mum size of the sec ond step Late Famennian gla ciers has been mea sured to have been 16 ´ 10 6 km 2 in west ern Gondwana (Isaacson et al, 2008). I here pro pose that gla ciers approx i mately 50 to 71% the size of the Famennian ice sheet, or 8-11 ´ 10 6 km 2 , were pres ent in west ern Gond wana in the Late Frasnian.…”

Section: Sedimentary Evidence For Glaciation In the Oligocene And Framentioning

confidence: 71%

“…The gla ciers in Gond wana reached their max i mum ex pan sion phase in the lat est Famennian, dated to the LE-LN spore zonal in ter val on land (Streel et al, 2000a;Caputo et al, 2008), and cor re lated to the Mid dle-Late praesulcata cono dont zonal in ter val in the sea (Isaacson et al, 2008). At the same strati graphic ho ri zon ice-rafted gla cial debris, in some cases metre-sized dropstones (Brezinski et al, 2010: fig.…”

Section: A Comparison Of Cenozoic and Late Paleozoic Global Coolingmentioning

confidence: 96%

“…The pro posed sec ond step in the Late Pa leo zoic Ice Age, Late Famennian cool ing, is ev i denced by gla cial sed i ments in Gond wana that have been dated to the VCo spore zone on land, and cor re lated to the Late postera Cono dont Zone in the sea (Isaacson et al, 2008). The gla ciers in Gond wana reached their max i mum ex pan sion phase in the lat est Famennian, dated to the LE-LN spore zonal in ter val on land (Streel et al, 2000a;Caputo et al, 2008), and cor re lated to the Mid dle-Late praesulcata cono dont zonal in ter val in the sea (Isaacson et al, 2008).…”

Section: A Comparison Of Cenozoic and Late Paleozoic Global Coolingmentioning

confidence: 99%

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The Late Devonian (Frasnian/Famenian) mass extinction: a proposed test of the glaciation hypothesis

McGhee

2014

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In this pa per it is agued that Late Frasnian global cool ing was the first step in the on set of the Late Pa leo zoic Ice Age, and that a Late Frasnian gla ci ation ex isted that was anal o gous to the early Oligocene (Oi-1) gla ci ation that took place in the first step of global cool ing in the on set of the Ce no zoic Ice Age. It is here pro posed that de fin i tive sedimentological ev i dence for the exis tence of Late Frasnian gla ci ation, like the Oi-1 gla ci ation, would be the dis cov ery of ice-rafted de bris in ma rine sed i ments of Late Frasnian age sim i lar to the ice-rafted de bris found in Oi-1 ma rine sed i ments (Zachos et al., 1992;Ehrmann and Mackensen, 1992). Rather than metre-to decimetre-sized ice-rafted de bris, a search should be ini ti ated for the pres ence of sand-sized (>250 mm) ice-rafted de bris in Frasnian ma rine strata lo cated off shore from the main Gond wana land mass, and dated to the Late rhenana Cono dont Zone and/or to the linguiformis-Early triangularis cono dont zonal in ter val where the extinc tions and sharp drops in sea-sur face tem per a ture oc curred (Joachimski and Buggisch, 2002).

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Section: Sedimentary Evidence For Glaciation In the Oligocene And Framentioning

confidence: 71%

Section: A Comparison Of Cenozoic and Late Paleozoic Global Coolingmentioning

confidence: 96%

Section: A Comparison Of Cenozoic and Late Paleozoic Global Coolingmentioning

confidence: 99%

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The Late Devonian (Frasnian/Famenian) mass extinction: a proposed test of the glaciation hypothesis

McGhee

2014

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“…In both ar eas, the same biostratigraphic in ter vals are char ac ter ized by the same lithofacies and fau nal as sem blages. The si mul ta neous ap pearance of sim i lar de pos its was caused by com mon fac tors, linked with global sea level fluc tu a tions, re sult ing from glaciations on the south ern hemi sphere (see Sandberg et al, 2002;Caputo et al, 2008;Isaacson et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…This phe nom e non was linked with a large-scale gla cial ep i sode in the south ern hemi sphere, causing rel a tively rapid sea level fall (Streel et al, 2000;Sandberg et al, 2002;Caputo et al, 2008;Isaacson et al, 2008;Kalvoda et al, 2013;Kumpan et al, 2013).…”

Section: Event Stratigraphy and Conodont Biofacies At The Devonian/camentioning

confidence: 99%

The Devonian/Carboniferous boundary in the Holy Cross Mountains (Poland)

Malec

2013

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Five sec tions from the Kielce Re gion of the Holy Cross Moun tains and one core from a bore hole drilled in the nearby west ern Me so zoic Mar gin re veal the best rec og nized de pos its from the De vo nian/Car bon if er ous bound ary in ter val. In four sec tions: Ruda Strawczyñska, Bolechowice IG 1, Zarêby IG 2 and Kowala, the De vo nian/Car bon if er ous bound ary is lo cated within a con tin u ous se ries of deep-wa ter car bon ates, whereas in the two re main ing: Ostrówka Quarry and the Jab³onna IG 1 borehole, the De vo nian/Car bon if er ous bound ary in ter val con tains strati graphic gaps re sult ing from lack of de po si tion in sub marine con di tions. The biostratigraphic po si tion of the analysed up per most De vo nian and low er most Car bon if er ous suc ces sion is de ter mined by as sem blages of cono donts, micro spores and deep-wa ter ostracodes of the Thuringian eco type. A dis tinctive suc ces sion of con tem po ra ne ous fauna as sem blages and lithofacies types is trace able from Holy Cross Mts. to Rhenish Mas sif. The main ex tinc tion oc curred dur ing a trans gres sion-pro moted an oxia, which then re verted in glacigenic re gres sion. The anoxic con di tions are well-ex pressed at Bolechowice and Kowala suc ces sions.

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Glacioeustasy, meteoric diagenesis, and the carbon cycle during the Middle Carboniferous

Dyer

Maloof

Higgins

2015

Geochem Geophys Geosyst

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Middle Carboniferous carbonates in the western U.S. have undergone Pleistocene Bahamasstyle meteoric diagenesis that may be associated with expanding late Paleozoic ice sheets. Fourteen stratigraphic sections from carbonate platforms illustrate the regional distribution and variable intensity of physical and chemical diagenesis just below the Middle Carboniferous unconformity. These sections contain topnegative carbon isotope excursions that terminate in regional exposure surfaces that are associated with some combination of karst towers, desiccation cracks, fabric destructive recrystallization, or extensive root systems. The timing of the diagenesis is synchronous with similarly scaled top-negative carbon isotope excursions observed by others in England, Kazakhstan, and China. The mass flux of negative carbon required to generate similar isotopic profiles across the areal extent of Middle Carboniferous platform carbonates is a significant component of the global carbon cycle. We present a simple carbon box model to illustrate that the d 13 C of dissolved inorganic carbon in the ocean could be elevated by 1.4& as isotopically light carbon from the weathering of terrestrial organic matter reacts with exposed platforms before reaching the ocean and atmosphere. These results represent an improvement on global biogeochemical models that have struggled to provide a congruent solution to the high d 13 C of the late Paleozoic icehouse.

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Late Devonian–earliest Mississippian glaciation in Gondwanaland and its biogeographic consequences

Cited by 196 publications

References 24 publications

The Late Devonian (Frasnian/Famenian) mass extinction: a proposed test of the glaciation hypothesis

The Late Devonian (Frasnian/Famenian) mass extinction: a proposed test of the glaciation hypothesis

The Devonian/Carboniferous boundary in the Holy Cross Mountains (Poland)

Glacioeustasy, meteoric diagenesis, and the carbon cycle during the Middle Carboniferous

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