Multi-carbonate component reconstruction of mid-carboniferous (Chesterian) seawater δ13C

Batt, Liselle S.; Montañez, Isabel P.; Isaacson, Peter E.; Pope, Michael C.; Butts, Susan H.; Abplanalp, Jason

doi:10.1016/j.palaeo.2007.02.049

Cited by 40 publications

(44 citation statements)

References 44 publications

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“…The degree of fluid-rock interaction (isotopic depletion) does not correlate with depositional (Dunham) texture or facies ( Figure 5), as reported elsewhere (e.g., Batt et al, 2008). This suggests that petrophysical properties (which likely controlled the degree of fluid-rock interaction) were not governed by smallscale rock fabric (matrix flow).…”

Section: Shape Of the Capitan J Curvesupporting

confidence: 60%

“…In many highresolution chemostratigraphic studies, muddy matrix and/or bulk carbonate are inferred to be rock buffered for δ 13 C during diagenesis and to archive a robust record of secular seawater change (e.g., Saltzman, 2003, 2005, Payne et al, 2004Halverson et al, 2005;Maloof et al, 2005;Katz et al, 2007;Batt et al, 2008). This inference is commonly based on the preservation of correlated large-magnitude isotope excursions, by the absence of isotopic depletion approaching exposure horizons and by petrographic or geochemical screening of samples (e.g., Metzger and Fike, 2013) However, each of these conditions is met in this study, where isotopic values are heavily diagenetically overprinted.…”

Section: Discussionmentioning

confidence: 99%

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Meteoric diagenesis and fluid-rock interaction in the Middle Permian Capitan backreef: Yates Formation, Slaughter Canyon, New Mexico

Bishop¹,

Osleger²,

Montañez³

et al. 2014

Bulletin

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This study examines the geochemical record of diagenesis in the Middle Permian Yates shelf, exposed in Slaughter Canyon, New Mexico. This diagenetic history significantly modified lithologies, depositional fabrics, and pore systems. Early diagenesis was dominated during sea level highstands by marine cementation and reflux dolomitization, and during sea level lowstands by meteoric cementation and stabilization-the focus of this study. This early diagenesis variably overprinted primary marine isotopic signatures, potentially leading to erroneous chemostratigraphic correlations or paleoclimate reconstructions.Four correlative sections through one m-scale cycle were analyzed for their δ 13 C and δ 18 O values. They show significant (2-4‰) δ 13 C and δ 18 O variability in coeval, texturally wellpreserved calcites. The δ 13 C and δ 18 O values of marine cements, brachiopods, bulk carbonate, micritic matrix, and the first generation of meteoric spar (from high to low values) delineate an "inverted J curve," indicating the variable alteration of components by diagenetic fluids. Numerical models indicate that the observed stable isotope trend is most consistent with diagenetic alteration in a partially closed system by meteoric fluids mixed with a progressively diminishing contribution of recycled marine waters.In the Yates shelf, marine cements provide a more robust primary isotopic record than micritic matrix; however, neither preserves primary seawater isotopic values. Furthermore, common criteria used to diagenetically screen samples proved inadequate (e.g.

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Section: Shape Of the Capitan J Curvesupporting

confidence: 60%

Section: Discussionmentioning

confidence: 99%

Meteoric diagenesis and fluid-rock interaction in the Middle Permian Capitan backreef: Yates Formation, Slaughter Canyon, New Mexico

Bishop¹,

Osleger²,

Montañez³

et al. 2014

Bulletin

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“…6D to F). Comparison with published compilations of isotopic data from well-preserved marine carbonates suggests that d 13 C values through this part of the succession closely reflect primary compositions and so are considered reliable palaeoenvironmental indicators (Given & Lohmann, 1985;Veizer et al, 1999;Korte et al, 2005;Batt et al, 2007;Grossman et al, 2008).…”

Section: Diagenetic Considerationsmentioning

confidence: 82%

Imprint of the Late Palaeozoic Ice Age on stratigraphic and carbon isotopic patterns in marine carbonates of the Orogrande Basin, New Mexico, USA

Koch¹,

Frank²

2011

Sedimentology

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The Permian records one of the most extreme climate transitions of the Phanerozoic, yet the climatic and environmental dynamics of this interval and their effects on neritic carbonate systems remain poorly constrained. New stratigraphic and carbon isotope records from uppermost Pennsylvanian to Lower Permian strata of the Orogrande Basin in south‐central New Mexico, USA, provide fresh insights into the response of palaeotropical carbonate systems to the growth and demise of ice sheets on Gondwana. The earliest Permian acme of glaciation is recorded in the Orogrande Basin as a series of subaerial exposure surfaces marked by highly variable δ13C values that tend toward values as low as −6‰. These stratigraphic and isotopic patterns are interpreted to reflect the retreat of the sea from the basin during glacial expansion. Younger (Lower Sakmarian to Kungurian) strata, deposited during the long decline of the Late Paleozoic Ice Age, are characterized overall by higher and more uniform δ13C values (+2 to +5‰) and show no evidence of long‐term subaerial exposure. However, these strata record two short‐lived excursions toward more negative δ13C values. These excursions occur through intervals that record shifts toward shallower and more restricted conditions in the Orogrande Basin. The timing of these shifts corresponds to two periods of glacial expansion across eastern Australia during Late Sakmarian to Early Artinskian and Kungurian time. These relationships suggest that pulses of glacial expansion in eastern Gondwana were of sufficient magnitude to have caused relative sea‐level fall, and possibly environmental change, in the Orogrande Basin. The results from this study suggest that marine chemistry, depositional environments and sea‐level in the Orogrande Basin were profoundly influenced by epochs of Gondwanan glaciation. These inferences help improve the understanding of how palaeotropical carbonate systems responded to the effects of cryospheric changes during the acme and waning stages of the Late Palaeozoic Ice Age.

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“…There is no dis tinct trend or re la tion ship be tween Dun ham's tex ture and de ple tion of iso to pic com po nents. This may sug gest that the trend is gov erned by microscale struc ture such as microporosity that can not be cap tured by Dun ham texture clas si fi ca tion (Batt et al, 2008;Bishop et al, 2014).…”

Section: Geochemical Signatures Of Meteoric Diagenesismentioning

confidence: 99%

Geochemical signatures of pervasive meteoric diagenesis of Early Miocene syn-rift carbonate platform, Red Sea, NW Saudi Arabia

Al‐Ramadan

2016

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Al-Ramadan, K., 2017. Geo chem i cal sig na tures of per va sive me te oric diagenesis of Early Mio cene syn-rift car bon ate platform, Red Sea, NW Saudi Ara bia. Geo log i cal Quar terly, 61 (1): 239-250, doi: 10.7306/gq.1334 Dif fer ent diagenetic en vi ron ments have been rec og nized in the Early Mio cene car bon ate plat form of Musayr For ma tion in the Red Sea rift area. Early ma rine diagenesis in cludes micritisation that oc curs as thin en ve lope around skel e tal and non-skel etal grains in low-en ergy mud dom i nated fa cies and isopachous fi brous cal cite in high-en ergy grain-dom i nated fa cies. Per vasive me te oric wa ter diagenesis re sulted in ce men ta tion of the car bon ates by coarse-crys tal line blocky-drusy cal cite and me nis cus ce ments. De ple tion of ox y gen (avg. -9.08‰), car bon (avg. -1.6‰) iso topes and trace el e ments con cen tra tions (avg. val ues of Fe: 1387 ppm; Mn: 1444 ppm; Sr: 419 ppm; Na: 1194 ppm) in con junc tion with neg a tive cor re la tion be tween Mn 2+ and ox y gen iso tope data sug gest vari able de grees of fluid-rock in ter ac tions and per va sive me te oric diagenesis. The for ma tion of me te oric diagenesis in the Musayr For ma tion can be ex plained by two sub se quent mech a nisms: (1) the presence of me te oric lenses dur ing the time of de po si tion might have been as so ci ated with ac tive fresh wa ter in put from the hinter land (NE) due to fall in the rel a tive sea level; (2) later up lift ep i sode dur ing Plio-Pleis to cene may have also con trib uted to the per va sive me te oric diagenetic al ter ations of the car bon ates of the Musayr For ma tion. The first mech a nism is sup ported by the ce ment stra tig ra phy where the blocky-drusy ce ments post date the me nis cus ce ment. The lat ter mech a nism seems to have more pro nounced ef fect on the al ter ation of Musayr car bon ate se quence by ob serv ing the occurence of late ce ments such as blocky cal cite in most of the sam ples. The im pact of me te oric diagenesis on the stud ied sam ples sug gest that dis solu tion is less se vere than ce men ta tion, hence the vis i ble po ros ity is very low. Un der stand ing the tim ing of me te oric diagenesis pro vides use ful in for ma tion about the res er voir qual ity dis tri bu tion in syn-rift car bon ate se quences.

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Multi-carbonate component reconstruction of mid-carboniferous (Chesterian) seawater δ13C

Cited by 40 publications

References 44 publications

Meteoric diagenesis and fluid-rock interaction in the Middle Permian Capitan backreef: Yates Formation, Slaughter Canyon, New Mexico

Meteoric diagenesis and fluid-rock interaction in the Middle Permian Capitan backreef: Yates Formation, Slaughter Canyon, New Mexico

Imprint of the Late Palaeozoic Ice Age on stratigraphic and carbon isotopic patterns in marine carbonates of the Orogrande Basin, New Mexico, USA

Geochemical signatures of pervasive meteoric diagenesis of Early Miocene syn-rift carbonate platform, Red Sea, NW Saudi Arabia

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