Multiple controls on the preservation of organic matter in Devonian–Mississippian marine black shales: geochemical and petrographic evidence

Rimmer, Susan M.; Thompson, Jennifer A.; Goodnight, Shane A.; Robl, Thomas L.

doi:10.1016/s0031-0182(04)00466-3

Cited by 316 publications

(79 citation statements)

References 89 publications

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“…C-S relationship was widely used to evaluate the redox conditions during deposition of the sediments [4,[36][37][38][39]. In the normal marine (oxic) environments, the oxic-anoxic boundary is under the sediment-water interface.…”

Section: The Relationship Between the Burial Organic Carbon And Sulfumentioning

confidence: 99%

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Correlation of burial organic carbon and paleoproductivity in the Mesoproterozoic Hongshuizhuang Formation, northern North China

et al. 2012

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In general, total organic carbon (TOC) is directly used as a proxy for paleoproductivity, however, it is not only affected by paleoproductivity, but also controlled by redox conditions and terrigenous detrital matter influx. Major and trace elements were analysed with the purpose of investigating the redox potential and paleoproductivity during deposition of the Hongshuizhuang Formation. In the present study, C-S relationship, V/Cr ratio and Mo concentration indicate that the dolomites were deposited in oxic environments, however, most of the black shales were accumulated in euxinic environments. P/Ti values in the Hongshuizhuang samples can be compared with those in the Japanese Ubara Permian-Triassic section which were regarded to be deposited under a moderate to high paleoproductivity. Ba/Al values are slightly lower than that of the laminated sediments from the continental margins of Central California (CCAL) which were thought to be accumulated under a high paleoproductivity. These results indicate that the paleoproductivity was moderate to high during deposition of the Hongshuizhuang Formation. Burial organic carbon shows positive correlations with V/Cr and Mo, but shows only weakly or no correlation with P/Ti and Ba/Al, respectively, suggesting that although the paleoproductivity was moderate to high during deposition of the Hongshuizhuang Formation, its organic-rich sediments were predominantly controlled by redox conditions and had no direct relationship with paleoproductivity.

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Section: The Relationship Between the Burial Organic Carbon And Sulfumentioning

confidence: 99%

“…burial organic carbon. Thus it can be seen that TOC in the marine sediments is not only controlled by paleoproductivity, but also by decomposition velocity, preservation and terrigenous detrital matter influx [3][4][5]. So the dicussion of the relationship between burial organic carbon and paleoproductivity will be helpful to evaluate the paleoproductivity.…”

mentioning

confidence: 99%

Correlation of burial organic carbon and paleoproductivity in the Mesoproterozoic Hongshuizhuang Formation, northern North China

et al. 2012

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“…12). Sim i lar re sults were re ported, inter alia, for the De vo nian-Mis sis sip pian black shales (Rimmer, 2004;Rimmer et al, 2004), Mid dle Ju ras sic mudstones (Szczepanik et al, 2007;Zatoñ et al, 2009), and Up per Famennian of the Holy Cross Moun tains (Racka et al, 2010), since the V/(V + Ni) ra tios pre dicted lower ox y gen con di tions than ei ther Ni/ Co or V/Cr.…”

Section: Trace Element Indicesmentioning

confidence: 94%

Geochemical and faunal proxies in the Westphalian A (Langsettian) marine horizon of the Lublin Coal Basin

Krzeszowska

2017

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Krzeszowska, E., 2017. Geo chem i cal and fau nal prox ies in the Westphalian A (Langsettian) ma rine ho ri zon of the Lublin Coal Ba sin. Geo log i cal Quar terly, 61 (4): 751-764, doi: 10.7306/gq.1374The up per most Westphalian ma rine ho ri zon (Dunbarella ho ri zon) is es pe cially im por tant for cor re la tion of Car bon if er ous depos its in the Lublin Coal Ba sin and in other bas ins of the North west Eu ro pean Car bon if er ous Ba sin. The Dunbarella ho ri zon is char ac ter ized by cy clic sed i men ta tion and con se quent fau nal spec trum vari abil ity, typ i cal for Westphalian ma rine ho ri zons of north west ern Eu rope. Palaeontological study of the Dunbarella ho ri zon showed the pres ence of macrofauna rep re sent ing dif fer ent palaeoenvironments, from ma rine to brack ish (non-ma rine) and fresh wa ter con di tions. The ver ti cal sea level fluc tua tions and changes in sea wa ter sa lin ity re sult ing in palaeontological re cord changes do not link with geo chem i cal prox ies. TOC, re dox-sen si tive trace el e ment con cen tra tions, and V/Cr, Ni/Co and V/(V + Ni) ra tios gen er ally sug gest that the Dunbarella ho ri zon sed i ments were de pos ited un der pre dom i nantly oxic con di tions (with lo cal ex cep tions dur ing the ini tial phase of the Dunbarella ingression; Kopina 1 bore hole).

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“…B1 and B2 signals are indicated. , Obermajer et al 1997, Taylor et al 1998, Rimmer et al 2004. A high proportion of mature bituminite and very fine framboidal pyrite replacing organic particles in the basal claystones indicate prevailing reducing conditions which produce sulphidic minerals rather than siderite, which is precipitated only rarely, probably during more oxic events.…”

Section: Palaeoenvironment and Hydrology Of The Mec Lakementioning

confidence: 98%

Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)

Lojka¹,

Sýkorová²,

Laurin³

et al. 2010

Bull. Geosci.

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A large freshwater lake formed (lake area > 5000 km 2 ) during the Stephanian B (~304 My) period of the Late Pennsylvanian in the central-east equatorial Pangaea and covered a substantial part of the continental Late Palaeozoic basins in the central Bohemian Massif (the Czech Republic). Lacustrine mudstones of the Mšec Member were acquired from two shallow boreholes 80 km apart and were analysed for lamination structure and periodicity, mineral composition and dispersed organic matter, in order to obtain more detailed information on the palaeoenvironmental change with a near annual resolution. Two hydrological states of the lake were identified, including high lake-level periods with dysoxic conditions on the lake floor, under a permanently thermally stratified hypolimnion favouring organic matter production and storage during periods of condensed sedimentation producing an irregular lamination pattern. A series of continuous regular couplet lamination reflect conditions of partially, possibly seasonally stratified hypolimnion with advanced lake-water mixing and organic matter oxidation. The couplet lamination results from an alternation of organic-clay laminae, consisting of variable proportions of autochthonous algal and microbial organic remnants, with detrital silt laminae accompanied by authigenic siderite and humified or burnt terrestrial plant debris. Similarly as in some modern tropical lakes, such regular high-frequency variations in sediment supply suggest seasonal changes in rainfall to be responsible for couplet formation. Couplet thickness distribution shows statistically significant periodicities, resembling multiannual to multidecadal scales observed in recent sediment archives, and so indirectly supports seasonality in precipitation in Pangaean low-latitudes, at least during part of the Stephanian B.• Key words: lamination, cyclicity, freshwater lake, dispersed organic matter, siderite, palaeoclimate.

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Multiple controls on the preservation of organic matter in Devonian–Mississippian marine black shales: geochemical and petrographic evidence

Cited by 316 publications

References 89 publications

Correlation of burial organic carbon and paleoproductivity in the Mesoproterozoic Hongshuizhuang Formation, northern North China

Correlation of burial organic carbon and paleoproductivity in the Mesoproterozoic Hongshuizhuang Formation, northern North China

Geochemical and faunal proxies in the Westphalian A (Langsettian) marine horizon of the Lublin Coal Basin

Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins)

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