Carboniferous isotope stratigraphies of North America: Implications for Carboniferous paleoceanography and Mississippian glaciation

Horng-Sheng Mii, Ethan L. Grossman, Thomas E. Yancey

Research output: Contribution to journalArticle

207 Citations (Scopus)

Abstract

We present detailed isotope stratigraphies for Carboniferous time based on brachiopod shell calcite from the midcontinent region of North America. Evidence for shell calcite preservation includes (1) preservation of shell microstructure, (2) lack of cathodolumi-nescence, (3) low Si, Al, Fe, and Mn contents, (4) Na, Sr, and S contents comparable to those of modern brachiopod shells, and (5) δ13C and δ18O values higher than those of associated cements and matrix. The Carboniferous δ13C record for North America is characterized by three isotopic stages. The earliest stage, C1, follows a 2.00/00 increase in Kinderhookian time (early Tournaisian), from 1.50/00 to 3.50/00, and includes a brief and perhaps local late Kinderhookian excursion to 5.40/00. The δ13C values remain stable at 3.50/00 to 40/00 during stage C1, then decrease about 10/00 near the Meramecian-Chesterian boundary (Visean) to 20/00-30/00 (stage C2). Stage C2 ends with a 10/00-20/00 increase (C2-C3 transition) between middle Chesterian and early Morrowan time (Serpukhovian-Bashkirian). Stage C3 values remain mostly between 30/00 and 4.50/00 upsection to Virgilian strata (Gzhelian). Increases in δ13C probably reflect global increases in sedimentary organic carbon burial and suggest that pCO2 declines in the earliest and middle Carboniferous strata. The middle Carboniferous δ13C shift of B. Popp, T. Anderson, and P. Sandberg, an ∼30/00 increase in European sections, occurs in North America (C2-C3 transition) but is limited to ∼1.50/00. This 1.50/00 increase was probably caused by increased organic carbon burial, whereas the additional ∼1.50/00 shift in European sections likely reflects changes in ocean circulation patterns associated with the closing of the Equatorial seaway. Based on the timing of the δ13C divergence between North America and Europe, the isolation of the Paleotethys began in late Chesterian time (Serpukhovian). The δ18O record can also be separated into the three stages. There is a 30/00 increase during Kinderhookian-Osagean time (Tournaisian), corresponding to the Devonian to Carboniferous transition to stage C1, a 30/00 decrease during Meramecian - early Chesterian time (Visean; C1-C2 transition), then a 20/00 increase in late Chesterian - early Morrowan time (Serpukhovian-Bashkirian; C2-C3 transition). The δ18O values then fluctuate between -10/00 and -30/00 (C3 stage) upsection to the Virgilian strata (Gzhelian). If global, the 20/00 to 30/00 δ18O shifts are compelling evidence for cooling and glaciation in Early Mississippian time, warming and deglaciation in Late Mississippian time, and a return to cool, glacial conditions in earliest Pennsylvanian time. The general correlation between δ13C and δ18O shifts suggests that cooling is associated with drawdown of atmospheric CO2.

Original languageEnglish
Pages (from-to)960-973
Number of pages14
JournalBulletin of the Geological Society of America
Volume111
Issue number7
DOIs
Publication statusPublished - 1999 Jul 1

Fingerprint

paleoceanography
glaciation
isotope
Serpukhovian
shell
Bashkirian
Tournaisian
Visean
brachiopod
calcite
organic carbon
North America
cooling
Pennsylvanian
deglaciation
drawdown
microstructure
cement
warming
divergence

ASJC Scopus subject areas

  • Geology

Cite this

Carboniferous isotope stratigraphies of North America : Implications for Carboniferous paleoceanography and Mississippian glaciation. / Mii, Horng-Sheng; Grossman, Ethan L.; Yancey, Thomas E.

In: Bulletin of the Geological Society of America, Vol. 111, No. 7, 01.07.1999, p. 960-973.

Research output: Contribution to journalArticle

@article{1f6d1ebec93c4ffcb4884f25e1bd36cd,
title = "Carboniferous isotope stratigraphies of North America: Implications for Carboniferous paleoceanography and Mississippian glaciation",
abstract = "We present detailed isotope stratigraphies for Carboniferous time based on brachiopod shell calcite from the midcontinent region of North America. Evidence for shell calcite preservation includes (1) preservation of shell microstructure, (2) lack of cathodolumi-nescence, (3) low Si, Al, Fe, and Mn contents, (4) Na, Sr, and S contents comparable to those of modern brachiopod shells, and (5) δ13C and δ18O values higher than those of associated cements and matrix. The Carboniferous δ13C record for North America is characterized by three isotopic stages. The earliest stage, C1, follows a 2.00/00 increase in Kinderhookian time (early Tournaisian), from 1.50/00 to 3.50/00, and includes a brief and perhaps local late Kinderhookian excursion to 5.40/00. The δ13C values remain stable at 3.50/00 to 40/00 during stage C1, then decrease about 10/00 near the Meramecian-Chesterian boundary (Visean) to 20/00-30/00 (stage C2). Stage C2 ends with a 10/00-20/00 increase (C2-C3 transition) between middle Chesterian and early Morrowan time (Serpukhovian-Bashkirian). Stage C3 values remain mostly between 30/00 and 4.50/00 upsection to Virgilian strata (Gzhelian). Increases in δ13C probably reflect global increases in sedimentary organic carbon burial and suggest that pCO2 declines in the earliest and middle Carboniferous strata. The middle Carboniferous δ13C shift of B. Popp, T. Anderson, and P. Sandberg, an ∼30/00 increase in European sections, occurs in North America (C2-C3 transition) but is limited to ∼1.50/00. This 1.50/00 increase was probably caused by increased organic carbon burial, whereas the additional ∼1.50/00 shift in European sections likely reflects changes in ocean circulation patterns associated with the closing of the Equatorial seaway. Based on the timing of the δ13C divergence between North America and Europe, the isolation of the Paleotethys began in late Chesterian time (Serpukhovian). The δ18O record can also be separated into the three stages. There is a 30/00 increase during Kinderhookian-Osagean time (Tournaisian), corresponding to the Devonian to Carboniferous transition to stage C1, a 30/00 decrease during Meramecian - early Chesterian time (Visean; C1-C2 transition), then a 20/00 increase in late Chesterian - early Morrowan time (Serpukhovian-Bashkirian; C2-C3 transition). The δ18O values then fluctuate between -10/00 and -30/00 (C3 stage) upsection to the Virgilian strata (Gzhelian). If global, the 20/00 to 30/00 δ18O shifts are compelling evidence for cooling and glaciation in Early Mississippian time, warming and deglaciation in Late Mississippian time, and a return to cool, glacial conditions in earliest Pennsylvanian time. The general correlation between δ13C and δ18O shifts suggests that cooling is associated with drawdown of atmospheric CO2.",
author = "Horng-Sheng Mii and Grossman, {Ethan L.} and Yancey, {Thomas E.}",
year = "1999",
month = "7",
day = "1",
doi = "10.1130/0016-7606(1999)111<0960:CISONA>2.3.CO;2",
language = "English",
volume = "111",
pages = "960--973",
journal = "Geological Society of America Bulletin",
issn = "0016-7606",
publisher = "Geological Society of America",
number = "7",

}

TY - JOUR

T1 - Carboniferous isotope stratigraphies of North America

T2 - Implications for Carboniferous paleoceanography and Mississippian glaciation

AU - Mii, Horng-Sheng

AU - Grossman, Ethan L.

AU - Yancey, Thomas E.

PY - 1999/7/1

Y1 - 1999/7/1

N2 - We present detailed isotope stratigraphies for Carboniferous time based on brachiopod shell calcite from the midcontinent region of North America. Evidence for shell calcite preservation includes (1) preservation of shell microstructure, (2) lack of cathodolumi-nescence, (3) low Si, Al, Fe, and Mn contents, (4) Na, Sr, and S contents comparable to those of modern brachiopod shells, and (5) δ13C and δ18O values higher than those of associated cements and matrix. The Carboniferous δ13C record for North America is characterized by three isotopic stages. The earliest stage, C1, follows a 2.00/00 increase in Kinderhookian time (early Tournaisian), from 1.50/00 to 3.50/00, and includes a brief and perhaps local late Kinderhookian excursion to 5.40/00. The δ13C values remain stable at 3.50/00 to 40/00 during stage C1, then decrease about 10/00 near the Meramecian-Chesterian boundary (Visean) to 20/00-30/00 (stage C2). Stage C2 ends with a 10/00-20/00 increase (C2-C3 transition) between middle Chesterian and early Morrowan time (Serpukhovian-Bashkirian). Stage C3 values remain mostly between 30/00 and 4.50/00 upsection to Virgilian strata (Gzhelian). Increases in δ13C probably reflect global increases in sedimentary organic carbon burial and suggest that pCO2 declines in the earliest and middle Carboniferous strata. The middle Carboniferous δ13C shift of B. Popp, T. Anderson, and P. Sandberg, an ∼30/00 increase in European sections, occurs in North America (C2-C3 transition) but is limited to ∼1.50/00. This 1.50/00 increase was probably caused by increased organic carbon burial, whereas the additional ∼1.50/00 shift in European sections likely reflects changes in ocean circulation patterns associated with the closing of the Equatorial seaway. Based on the timing of the δ13C divergence between North America and Europe, the isolation of the Paleotethys began in late Chesterian time (Serpukhovian). The δ18O record can also be separated into the three stages. There is a 30/00 increase during Kinderhookian-Osagean time (Tournaisian), corresponding to the Devonian to Carboniferous transition to stage C1, a 30/00 decrease during Meramecian - early Chesterian time (Visean; C1-C2 transition), then a 20/00 increase in late Chesterian - early Morrowan time (Serpukhovian-Bashkirian; C2-C3 transition). The δ18O values then fluctuate between -10/00 and -30/00 (C3 stage) upsection to the Virgilian strata (Gzhelian). If global, the 20/00 to 30/00 δ18O shifts are compelling evidence for cooling and glaciation in Early Mississippian time, warming and deglaciation in Late Mississippian time, and a return to cool, glacial conditions in earliest Pennsylvanian time. The general correlation between δ13C and δ18O shifts suggests that cooling is associated with drawdown of atmospheric CO2.

AB - We present detailed isotope stratigraphies for Carboniferous time based on brachiopod shell calcite from the midcontinent region of North America. Evidence for shell calcite preservation includes (1) preservation of shell microstructure, (2) lack of cathodolumi-nescence, (3) low Si, Al, Fe, and Mn contents, (4) Na, Sr, and S contents comparable to those of modern brachiopod shells, and (5) δ13C and δ18O values higher than those of associated cements and matrix. The Carboniferous δ13C record for North America is characterized by three isotopic stages. The earliest stage, C1, follows a 2.00/00 increase in Kinderhookian time (early Tournaisian), from 1.50/00 to 3.50/00, and includes a brief and perhaps local late Kinderhookian excursion to 5.40/00. The δ13C values remain stable at 3.50/00 to 40/00 during stage C1, then decrease about 10/00 near the Meramecian-Chesterian boundary (Visean) to 20/00-30/00 (stage C2). Stage C2 ends with a 10/00-20/00 increase (C2-C3 transition) between middle Chesterian and early Morrowan time (Serpukhovian-Bashkirian). Stage C3 values remain mostly between 30/00 and 4.50/00 upsection to Virgilian strata (Gzhelian). Increases in δ13C probably reflect global increases in sedimentary organic carbon burial and suggest that pCO2 declines in the earliest and middle Carboniferous strata. The middle Carboniferous δ13C shift of B. Popp, T. Anderson, and P. Sandberg, an ∼30/00 increase in European sections, occurs in North America (C2-C3 transition) but is limited to ∼1.50/00. This 1.50/00 increase was probably caused by increased organic carbon burial, whereas the additional ∼1.50/00 shift in European sections likely reflects changes in ocean circulation patterns associated with the closing of the Equatorial seaway. Based on the timing of the δ13C divergence between North America and Europe, the isolation of the Paleotethys began in late Chesterian time (Serpukhovian). The δ18O record can also be separated into the three stages. There is a 30/00 increase during Kinderhookian-Osagean time (Tournaisian), corresponding to the Devonian to Carboniferous transition to stage C1, a 30/00 decrease during Meramecian - early Chesterian time (Visean; C1-C2 transition), then a 20/00 increase in late Chesterian - early Morrowan time (Serpukhovian-Bashkirian; C2-C3 transition). The δ18O values then fluctuate between -10/00 and -30/00 (C3 stage) upsection to the Virgilian strata (Gzhelian). If global, the 20/00 to 30/00 δ18O shifts are compelling evidence for cooling and glaciation in Early Mississippian time, warming and deglaciation in Late Mississippian time, and a return to cool, glacial conditions in earliest Pennsylvanian time. The general correlation between δ13C and δ18O shifts suggests that cooling is associated with drawdown of atmospheric CO2.

UR - http://www.scopus.com/inward/record.url?scp=0032700349&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032700349&partnerID=8YFLogxK

U2 - 10.1130/0016-7606(1999)111<0960:CISONA>2.3.CO;2

DO - 10.1130/0016-7606(1999)111<0960:CISONA>2.3.CO;2

M3 - Article

AN - SCOPUS:0032700349

VL - 111

SP - 960

EP - 973

JO - Geological Society of America Bulletin

JF - Geological Society of America Bulletin

SN - 0016-7606

IS - 7

ER -