δ13C records across the late Silurian Lau event: New data from middle palaeo-latitudes of northern peri-Gondwana (Prague Basin, Czech Republic)

Lehnert, Oliver; Frýda, Jiří; Buggisch, Werner; Munnecke, Axel; Nützel, Alexander; Kříž, Jiří; Manda, Štěpán

doi:10.1016/j.palaeo.2006.02.022

Cited by 65 publications

(91 citation statements)

References 26 publications

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“…Thus, it is likely that isotope signals from the paleo-sediment record may preserve information about plateau uplift. Oxygen isotope signals from paleosoil have been used to reconstruct the uplift history of the plateau [11][12][13][14][15][16][17][18][19][20]. The stable isotope lapse rate is also used to calculate the contribution of tributaries from different elevations [21].…”

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confidence: 99%

The altitude effect of δ 18O in precipitation and river water in the Southern Himalayas

et al. 2012

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The lapse rate of water isotopes is used in the study of the hydrologic cycle as well as in the estimation of uplift of the Tibetan Plateau. The greater elevation contrast in the Southern Himalayas allows for a detailed discussion about this lapse rate. We analyze variations of δ 18 O in precipitation and river water between 1320 m and 6700 m elevations in the Southern Himalayas, and calculate the specific lapse rate of water δ 18 O. The results show that the multi-year average lapse rate in precipitation over this region is 0.15‰/100 m. The one-year average lapse rate is 0.17‰/100 m from three sites along the Southern Himalayas. The two results agree, but are much lower than the global average of 0.28‰/100 m. This work also shows that there is a difference in precipitation δ 18 O lapse rate between the monsoon and non-monsoon seasons. The calculated precipitation lapse rate is much lower than that in surface water.

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confidence: 99%

The altitude effect of δ 18O in precipitation and river water in the Southern Himalayas

et al. 2012

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“…Of potential utility for constraining the stratigraphic position of the interval investigated in the present study is the positive stable CIE recognized globally in the Ludfordian (Wenzel and Joachimski 1996;Bickert et al 1997;Kaljo et al 1997;Azmy et al 1998;Wigforss-Lange 1999;Wenzel et al 2000;Saltzman 2001;Calner 2005b;Martma et al 2005;Kaljo and Martma 2006;Jeppsson et al 2007;Kaljo et al 2007;Lehnert et al 2007;Eriksson and Calner 2008;Barrick et al 2010;Kozłowski and Munnecke 2010;Munnecke et al 2010;Cramer et al 2011;Loydell and Frýda 2011;Kaljo et al 2012;Kozłowski and Sobień 2012;Manda et al 2012). The beginning of the excursion coincides with an abrupt decrease in abundance of Polygnathoides siluricus, shortly before its Last Appearance Datum (LAD) (Martma et al 2005;Kaljo and Martma 2006;Jeppsson et al 2007;Lehnert et al 2007;Eriksson and Calner 2008).…”

Section: Stable Carbon Isotope Stratigraphymentioning

confidence: 62%

“…The CIE ends clearly below the First Appearance Datum (FAD) of O. crispa in Gotland (Calner et al 2004;Jeppsson et al 2007;Eriksson and Calner 2008), as well as in the Ventspils (Latvia) and Vidukle-61 (Lithuania) cores (Martma et al 2005;Kaljo and Martma 2006;Kaljo et al 2012), but it persists over a much longer interval in the Ohesaare core (Saarema, Estonia). Data available from the Bohemian Basin (Lehnert et al 2007) and from the Anglo-Welsh Basin (Loydell and Frýda 2011) also suggest that the return to values close to 0 % predates the first appearance of O. crispa.…”

Section: Stable Carbon Isotope Stratigraphymentioning

confidence: 93%

“…The beginning of the excursion coincides with an abrupt decrease in abundance of Polygnathoides siluricus, shortly before its Last Appearance Datum (LAD) (Martma et al 2005;Kaljo and Martma 2006;Jeppsson et al 2007;Lehnert et al 2007;Eriksson and Calner 2008). The peak interval is constrained within the O. snajdri zone (coeval with the top of the Neocucullograptus kozlowskii zone), and in many sections there is lithological evidence for a sub-stratigraphic (contained entirely within one biozone) gap or even erosion (Kaljo et al 1997;Calner 2005b;Lehnert et al 2007;Eriksson and Calner 2008;Kozłowski and Munnecke 2010;Loydell and Frýda 2011;Kaljo et al 2012;Kozłowski and Sobień 2012). The position of the falling limb of the excursion is less consistent.…”

Section: Stable Carbon Isotope Stratigraphymentioning

confidence: 99%

“…The Ludfordian (Upper Silurian) stage was the time of the most pronounced positive stable carbon isotope excursion (CIE) in the Phanerozoic, known as the Lau excursion (Wenzel and Joachimski 1996;Bickert et al 1997;Wigforss-Lange 1999;Calner et al 2004;Martma et al 2005; Kaljo and Martma 2006;Jeppsson et al 2007;Kaljo et al 2007; Lehnert et al 2007;Eriksson and Calner 2008;Barrick et al 2010;Kozłowski and Munnecke 2010;Munnecke et al 2010;Cramer et al 2011;Loydell and Frýda 2011;Jeppsson et al 2012;Kaljo et al 2012;Kozłowski and Sobień 2012). Very good geochemical, biostratigraphical, and paleoecological documentation exists for the Lau excursion, and it is often used as a model to study positive CIEs, which are widely used as chemostratigraphic markers and as indicators of perturbations of the global carbon cycle (Jeppsson 1990;Aldridge et al 1993;Bickert et al 1997;Jeppsson and Aldridge 2000;Munnecke et al 2003;Calner 2005a;Melchin and Holmden 2006;Cramer and Saltzman 2007a, b;Fanton and Holmden 2007;Calner et al 2008;Małkowski et al 2009;Kozłowski and Sobień 2012).…”

Section: Introductionmentioning

confidence: 99%

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Facies development and sequence stratigraphy of the Ludfordian (Upper Silurian) deposits in the Zbruch River Valley, Podolia, western Ukraine: local facies overprint on the δ13Ccarb record of a global stable carbon isotope excursion

Jarochowska

Kozłowski

2013

Facies

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The Silurian red beds of Tarim Basin: Signals of palaeoenvironment, palaeoclimate, and sea‐level change

Liu

Lin

et al. 2019

Geological Journal

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The Silurian red beds of the Tarim Basin were formed in a coastal tidal and fluvial delta environment. They consist of red mudstone layers of the lower Tataaiertag Formation and separate the grey-green muddy sandstones of the Kalpintag Formation from the red sandstones of the upper Tataaiertag Formation. These mudstones are regarded as the most important regional seal for Silurian oil reservoirs. They contain a significant record of palaeoenvironmental and palaeoclimate changes which is related to global sea-level changes. Based on a systematic and continuous sedimentary study and multiple geochemistry analyses of samples taken from the Sishichang outcrop profile in west of the Tarim Basin, the Early-Middle Silurian palaeoclimate and sea-level curve have been reconstructed. The Early-Middle Silurian Tarim Basin encountered five intervals of climate change, from humid transitioning to semi-humid and dry-hot climate which shows signs of generally increasing oxidation. The reconstructed sea-level curve indicates five sea-level cycles throughout the Early-Middle Silurian succession. The most significant sea-level drop occurred during the early Telychian stage, which represents the onset of the red mudstone section of the Tataaiertag Formation. This new sealevel curve shows some differences compared with the earlier proposed global sealevel curves. The dry-hot climate occurred during the late Telychian stage and the beginning of Wenlock age. The Early-Middle Silurian sea-level change of the TarimBasin was mostly synchronical to the eustacy. However, regional tectonic activities during the early Telychian stage further enhanced the effect of the global sea-level fall and lead to a dry-hot climate trend which also caused the creation of the red beds of the Silurian period.

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δ13C records across the late Silurian Lau event: New data from middle palaeo-latitudes of northern peri-Gondwana (Prague Basin, Czech Republic)

Cited by 65 publications

References 26 publications

The altitude effect of δ 18O in precipitation and river water in the Southern Himalayas

The altitude effect of δ 18O in precipitation and river water in the Southern Himalayas

Facies development and sequence stratigraphy of the Ludfordian (Upper Silurian) deposits in the Zbruch River Valley, Podolia, western Ukraine: local facies overprint on the δ13Ccarb record of a global stable carbon isotope excursion

The Silurian red beds of Tarim Basin: Signals of palaeoenvironment, palaeoclimate, and sea‐level change

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