Multi-proxy study of shallow platform carbonates at the
Devonian/Carboniferous	boundary (Ertoucun and Nanbiancun,
South China): a diachronous detrital event

a 2013

Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event

DEVLEESCHOUVER, Xavier; Katarzyna SOBIEN; Tomáš KUMPAN; Simo SPASSOV; Daizhao CHEN et al.

Základní údaje

Originální název

Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event

Autoři

DEVLEESCHOUVER, Xavier; Katarzyna SOBIEN; Tomáš KUMPAN ; Simo SPASSOV; Daizhao CHEN a Ondřej BÁBEK

Vydání

IGCP 580-596 - Geophysical and Geochemical Techniques: A Window on the Palaeozoic World, 2013

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/13:00066520

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

petrophysics;china;devonian-carboniferous boundary;stratigraphy

Změněno: 17. 11. 2013 23:15, Mgr. Tomáš Kumpan, Ph.D.

Anotace

V originále

The Nanbiancun section is exposed in a small hill located close to the Nanbiancun village, about 4 km north-west of Guilin city. Based on the evolution of conodont Siphonodella praesulcata – S. sulcata community, the D/C boundary is placed between beds 55 and 56 in the top of Rongxian Formation. The Ertoucun section is located 7 km south of Guilin in the carbonate platform while the Nanbiancun section is on the marginal slope of the Guilin Platform. In Ertoucun, the upper part of the Famennian (Ertoucun Formation, 0 to 23 m) consists mainly of medium-bedded limestones. The lowermost part of the section (0 to ~11 m) comprises algal wackestones with abundant unilocular and multilocular (quasiendothyrid) foraminifers, peloids, bacterial lumps, ostracods and, in places, fenestral fabric. Peloid-foraminiferal wackestones to packstones with brachiopods, crinoids and algae occur higher up the section (11 to 23 m). A thin layer of shale is observed on the topmost part of the Famennian. The overlying basal Carboniferous Yinggoudong Formation (23 to 31.5 m) consists of thin bedded and/or nodular foraminifer-algal wackestones to packstones with peloids, ostracods, crinoids and brachiopods. Low-field magnetic susceptibility (XLF) measurements reveals: 1) fluctuating, weak and sometimes negative MS values during the Famennian, 2) increasing positive XLF values before the D/C boundary, staying positive up to the basal Carboniferous and 3) decreasing upwards to very weak and negative XLF values. A similar pattern at large-scale is observed in the Nanbiancun section but the GRS peaks and positive XLF values are present in the basal Carboniferous suggesting a clear diachronous detrital signal recorded between the inner platform and marginal slope settings. Sea-level fluctuations and 3rd order systems tracts should probably explain these differences between sections located in the same basin.

Návaznosti

GAP210/11/1891, projekt VaV

Název: Hranice devonu a karbonu v Evropě - multidisciplinární přístup

Investor: Grantová agentura ČR, Hranice devonu a karbonu v Evropě - multidisciplinární přístup

Citovat

DEVLEESCHOUVER, Xavier; Katarzyna SOBIEN; Tomáš KUMPAN; Simo SPASSOV; Daizhao CHEN a Ondřej BÁBEK. Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event. In IGCP 580-596 - Geophysical and Geochemical Techniques: A Window on the Palaeozoic World. 2013.

@proceedings{1129607,
   author = {Devleeschouver, Xavier and Sobien, Katarzyna and Kumpan, Tomáš and Spassov, Simo and Chen, Daizhao and Bábek, Ondřej},
   booktitle = {IGCP 580-596 - Geophysical and Geochemical Techniques: A Window on the Palaeozoic World},
   keywords = {petrophysics;china;devonian-carboniferous boundary;stratigraphy},
   language = {eng},
   title = {Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event},
   year = {2013}
}

TY  - CONF
ID  - 1129607
AU  - Devleeschouver, Xavier - Sobien, Katarzyna - Kumpan, Tomáš - Spassov, Simo - Chen, Daizhao - Bábek, Ondřej
PY  - 2013
TI  - Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event
KW  - petrophysics;china;devonian-carboniferous boundary;stratigraphy
N2  - The Nanbiancun section is exposed in a small hill located close to the Nanbiancun village, about 4 km north-west of Guilin city. Based on the evolution of conodont Siphonodella praesulcata – S. sulcata community, the D/C boundary is placed between beds 55 and 56 in the top of Rongxian Formation. The Ertoucun section is located 7 km south of Guilin in the carbonate platform while the Nanbiancun section is on the marginal slope of the Guilin Platform. In Ertoucun, the upper part of the Famennian (Ertoucun Formation, 0 to 23 m) consists mainly of medium-bedded limestones. The lowermost part of the section (0 to ~11 m) comprises algal wackestones with abundant unilocular and multilocular (quasiendothyrid) foraminifers, peloids, bacterial lumps, ostracods and, in places, fenestral fabric. Peloid-foraminiferal wackestones to packstones with brachiopods, crinoids and algae occur higher up the section (11 to 23 m). A thin layer of shale is observed on the topmost part of the Famennian. The overlying basal Carboniferous Yinggoudong Formation (23 to 31.5 m) consists of thin bedded and/or nodular foraminifer-algal wackestones to packstones with peloids, ostracods, crinoids and brachiopods. Low-field magnetic susceptibility (XLF) measurements reveals: 1) fluctuating, weak and sometimes negative MS values during the Famennian, 2) increasing positive XLF values before the D/C boundary, staying positive up to the basal Carboniferous and 3) decreasing upwards to very weak and negative XLF values. A similar pattern at large-scale is observed in the Nanbiancun section but the GRS peaks and positive XLF values are present in the basal Carboniferous suggesting a clear diachronous detrital signal recorded between the inner platform and marginal slope settings. Sea-level fluctuations and 3rd order systems tracts should probably explain these differences between sections located in the same basin.
ER  -

DEVLEESCHOUVER, Xavier; Katarzyna SOBIEN; Tomáš KUMPAN; Simo SPASSOV; Daizhao CHEN a Ondřej BÁBEK. Multi-proxy study of shallow platform carbonates at the Devonian/Carboniferous boundary (Ertoucun and Nanbiancun, South China): a diachronous detrital event. In \textit{IGCP 580-596 - Geophysical and Geochemical Techniques: A Window on the Palaeozoic World}. 2013.

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