The Great Grenvillian Sedimentation Episode

Record of Supercontinent Rodinia's assembly

Robert Rainbird, Peter Cawood, George E Gehrels

Research output: Chapter in Book/Report/Conference proceedingChapter

58 Citations (Scopus)

Abstract

One of Earth's greatest mountain-building episodes, the Grenvillian orogeny, occurred with the assembly of the supercontinent Rodinia at the end of the Mesoproterozoic era, about 1.2-1.0 billion years ago. Weathering and erosion of the Grenvillian mountain chain, the roots of which can be traced today for nearly 12,000 km, produced huge volumes of sedimentary detritus that were dispersed by an enormous system of braided rivers. Erosion, denudation, and sediment throughput were enhanced by a lack of vegetation and vigorous continental weathering under a climate that favored strong chemical alteration. The enormity of the erosional episode and broad extent of river system that drained the Grenvillian Mountains was first recognized with the advent of detrital zircon geochronology as a tool of provenance analysis. Initially, zircon grains of Grenvillian age were recovered from early Neoproterozoic sedimentary basins located in northwestern Canada, more than 3000km away from the nearest probable sources in the Grenville Province of eastern Laurentia. Paleocurrents derived from cross-bedding in thick fluvial deposits preserved in these basins showed regionally consistent west-northwesterly transport, lending support to the paleogeographic model. Correlative strata, located thousands of kilometers to the south, in the Canadian and US Cordillera, exhibit similar detrital zircon age distributions providing further support for the large-scale river system. These data also indicate that the fluvial system was laterally extensive and likely originated from multiple sources along the great length of the Grenvillian mountain front. Deposits representing the proximal parts of the system have now been recognized in the subsurface of the central US, where they comprise several stratigraphic sequences that can be tied to the various stages of tectonic evolution of the Grenvillian orogeny. The sequences correlate well with outcrop exposures preserved in the Midcontinent Rift system and Great Lakes region to the north. Among these are syn-collisional rift deposits and post-collisional foreland basin deposits displaying features such as axial flow patterns that indicate deposition by trunk rivers flowing parallel to the mountain front. Similar stratigraphic successions are preserved around the North Atlantic in Scotland, Shetland, East Greenland, Svalbard, and Norway. Detrital zircon grains from these successions are dominated by late Paleoproterozoic and late Mesoproterozoic ages inferred to have been derived from source terranes of the Grenville Province in eastern Laurentia. Detrital zircon geochronology indicates that Grenville-age detritus was reworked into numerous Phanerozoic successions around the globe. Some of this detritus was derived directly from uplift and erosion of Grenville Province rocks or recycling of detritus from Grenvillian foreland basin deposits during Appalachian-Hercynian orogenesis and assembly of the Pangea supercontinent. Late Mesoproterozoic detritus has been continually recycled into younger stratigraphic successions and remains a significant component of modern river sediments.

Original languageEnglish (US)
Title of host publicationTectonics of Sedimentary Basins: Recent Advances
PublisherJohn Wiley and Sons
Pages583-601
Number of pages19
ISBN (Print)9781405194655
DOIs
StatePublished - Jan 30 2012

Fingerprint

Grenvillian orogeny
Rodinia
supercontinent
sedimentation
detritus
zircon
mountain
Laurentia
foreland basin
erosion
geochronology
fluvial deposit
river system
weathering
cross-bedding
chemical alteration
paleocurrent
braided river
Pangaea
denudation

Keywords

  • Detrital zircon geochronology
  • Fluvial
  • Neoproterozoic
  • Paleogeography
  • Rodinia

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Rainbird, R., Cawood, P., & Gehrels, G. E. (2012). The Great Grenvillian Sedimentation Episode: Record of Supercontinent Rodinia's assembly. In Tectonics of Sedimentary Basins: Recent Advances (pp. 583-601). John Wiley and Sons. https://doi.org/10.1002/9781444347166.ch29

The Great Grenvillian Sedimentation Episode : Record of Supercontinent Rodinia's assembly. / Rainbird, Robert; Cawood, Peter; Gehrels, George E.

Tectonics of Sedimentary Basins: Recent Advances. John Wiley and Sons, 2012. p. 583-601.

Research output: Chapter in Book/Report/Conference proceedingChapter

Rainbird, R, Cawood, P & Gehrels, GE 2012, The Great Grenvillian Sedimentation Episode: Record of Supercontinent Rodinia's assembly. in Tectonics of Sedimentary Basins: Recent Advances. John Wiley and Sons, pp. 583-601. https://doi.org/10.1002/9781444347166.ch29
Rainbird R, Cawood P, Gehrels GE. The Great Grenvillian Sedimentation Episode: Record of Supercontinent Rodinia's assembly. In Tectonics of Sedimentary Basins: Recent Advances. John Wiley and Sons. 2012. p. 583-601 https://doi.org/10.1002/9781444347166.ch29
Rainbird, Robert ; Cawood, Peter ; Gehrels, George E. / The Great Grenvillian Sedimentation Episode : Record of Supercontinent Rodinia's assembly. Tectonics of Sedimentary Basins: Recent Advances. John Wiley and Sons, 2012. pp. 583-601
@inbook{ebc056cc673447f4a27c602c8b03a0db,
title = "The Great Grenvillian Sedimentation Episode: Record of Supercontinent Rodinia's assembly",
abstract = "One of Earth's greatest mountain-building episodes, the Grenvillian orogeny, occurred with the assembly of the supercontinent Rodinia at the end of the Mesoproterozoic era, about 1.2-1.0 billion years ago. Weathering and erosion of the Grenvillian mountain chain, the roots of which can be traced today for nearly 12,000 km, produced huge volumes of sedimentary detritus that were dispersed by an enormous system of braided rivers. Erosion, denudation, and sediment throughput were enhanced by a lack of vegetation and vigorous continental weathering under a climate that favored strong chemical alteration. The enormity of the erosional episode and broad extent of river system that drained the Grenvillian Mountains was first recognized with the advent of detrital zircon geochronology as a tool of provenance analysis. Initially, zircon grains of Grenvillian age were recovered from early Neoproterozoic sedimentary basins located in northwestern Canada, more than 3000km away from the nearest probable sources in the Grenville Province of eastern Laurentia. Paleocurrents derived from cross-bedding in thick fluvial deposits preserved in these basins showed regionally consistent west-northwesterly transport, lending support to the paleogeographic model. Correlative strata, located thousands of kilometers to the south, in the Canadian and US Cordillera, exhibit similar detrital zircon age distributions providing further support for the large-scale river system. These data also indicate that the fluvial system was laterally extensive and likely originated from multiple sources along the great length of the Grenvillian mountain front. Deposits representing the proximal parts of the system have now been recognized in the subsurface of the central US, where they comprise several stratigraphic sequences that can be tied to the various stages of tectonic evolution of the Grenvillian orogeny. The sequences correlate well with outcrop exposures preserved in the Midcontinent Rift system and Great Lakes region to the north. Among these are syn-collisional rift deposits and post-collisional foreland basin deposits displaying features such as axial flow patterns that indicate deposition by trunk rivers flowing parallel to the mountain front. Similar stratigraphic successions are preserved around the North Atlantic in Scotland, Shetland, East Greenland, Svalbard, and Norway. Detrital zircon grains from these successions are dominated by late Paleoproterozoic and late Mesoproterozoic ages inferred to have been derived from source terranes of the Grenville Province in eastern Laurentia. Detrital zircon geochronology indicates that Grenville-age detritus was reworked into numerous Phanerozoic successions around the globe. Some of this detritus was derived directly from uplift and erosion of Grenville Province rocks or recycling of detritus from Grenvillian foreland basin deposits during Appalachian-Hercynian orogenesis and assembly of the Pangea supercontinent. Late Mesoproterozoic detritus has been continually recycled into younger stratigraphic successions and remains a significant component of modern river sediments.",
keywords = "Detrital zircon geochronology, Fluvial, Neoproterozoic, Paleogeography, Rodinia",
author = "Robert Rainbird and Peter Cawood and Gehrels, {George E}",
year = "2012",
month = "1",
day = "30",
doi = "10.1002/9781444347166.ch29",
language = "English (US)",
isbn = "9781405194655",
pages = "583--601",
booktitle = "Tectonics of Sedimentary Basins: Recent Advances",
publisher = "John Wiley and Sons",

}

TY - CHAP

T1 - The Great Grenvillian Sedimentation Episode

T2 - Record of Supercontinent Rodinia's assembly

AU - Rainbird, Robert

AU - Cawood, Peter

AU - Gehrels, George E

PY - 2012/1/30

Y1 - 2012/1/30

N2 - One of Earth's greatest mountain-building episodes, the Grenvillian orogeny, occurred with the assembly of the supercontinent Rodinia at the end of the Mesoproterozoic era, about 1.2-1.0 billion years ago. Weathering and erosion of the Grenvillian mountain chain, the roots of which can be traced today for nearly 12,000 km, produced huge volumes of sedimentary detritus that were dispersed by an enormous system of braided rivers. Erosion, denudation, and sediment throughput were enhanced by a lack of vegetation and vigorous continental weathering under a climate that favored strong chemical alteration. The enormity of the erosional episode and broad extent of river system that drained the Grenvillian Mountains was first recognized with the advent of detrital zircon geochronology as a tool of provenance analysis. Initially, zircon grains of Grenvillian age were recovered from early Neoproterozoic sedimentary basins located in northwestern Canada, more than 3000km away from the nearest probable sources in the Grenville Province of eastern Laurentia. Paleocurrents derived from cross-bedding in thick fluvial deposits preserved in these basins showed regionally consistent west-northwesterly transport, lending support to the paleogeographic model. Correlative strata, located thousands of kilometers to the south, in the Canadian and US Cordillera, exhibit similar detrital zircon age distributions providing further support for the large-scale river system. These data also indicate that the fluvial system was laterally extensive and likely originated from multiple sources along the great length of the Grenvillian mountain front. Deposits representing the proximal parts of the system have now been recognized in the subsurface of the central US, where they comprise several stratigraphic sequences that can be tied to the various stages of tectonic evolution of the Grenvillian orogeny. The sequences correlate well with outcrop exposures preserved in the Midcontinent Rift system and Great Lakes region to the north. Among these are syn-collisional rift deposits and post-collisional foreland basin deposits displaying features such as axial flow patterns that indicate deposition by trunk rivers flowing parallel to the mountain front. Similar stratigraphic successions are preserved around the North Atlantic in Scotland, Shetland, East Greenland, Svalbard, and Norway. Detrital zircon grains from these successions are dominated by late Paleoproterozoic and late Mesoproterozoic ages inferred to have been derived from source terranes of the Grenville Province in eastern Laurentia. Detrital zircon geochronology indicates that Grenville-age detritus was reworked into numerous Phanerozoic successions around the globe. Some of this detritus was derived directly from uplift and erosion of Grenville Province rocks or recycling of detritus from Grenvillian foreland basin deposits during Appalachian-Hercynian orogenesis and assembly of the Pangea supercontinent. Late Mesoproterozoic detritus has been continually recycled into younger stratigraphic successions and remains a significant component of modern river sediments.

AB - One of Earth's greatest mountain-building episodes, the Grenvillian orogeny, occurred with the assembly of the supercontinent Rodinia at the end of the Mesoproterozoic era, about 1.2-1.0 billion years ago. Weathering and erosion of the Grenvillian mountain chain, the roots of which can be traced today for nearly 12,000 km, produced huge volumes of sedimentary detritus that were dispersed by an enormous system of braided rivers. Erosion, denudation, and sediment throughput were enhanced by a lack of vegetation and vigorous continental weathering under a climate that favored strong chemical alteration. The enormity of the erosional episode and broad extent of river system that drained the Grenvillian Mountains was first recognized with the advent of detrital zircon geochronology as a tool of provenance analysis. Initially, zircon grains of Grenvillian age were recovered from early Neoproterozoic sedimentary basins located in northwestern Canada, more than 3000km away from the nearest probable sources in the Grenville Province of eastern Laurentia. Paleocurrents derived from cross-bedding in thick fluvial deposits preserved in these basins showed regionally consistent west-northwesterly transport, lending support to the paleogeographic model. Correlative strata, located thousands of kilometers to the south, in the Canadian and US Cordillera, exhibit similar detrital zircon age distributions providing further support for the large-scale river system. These data also indicate that the fluvial system was laterally extensive and likely originated from multiple sources along the great length of the Grenvillian mountain front. Deposits representing the proximal parts of the system have now been recognized in the subsurface of the central US, where they comprise several stratigraphic sequences that can be tied to the various stages of tectonic evolution of the Grenvillian orogeny. The sequences correlate well with outcrop exposures preserved in the Midcontinent Rift system and Great Lakes region to the north. Among these are syn-collisional rift deposits and post-collisional foreland basin deposits displaying features such as axial flow patterns that indicate deposition by trunk rivers flowing parallel to the mountain front. Similar stratigraphic successions are preserved around the North Atlantic in Scotland, Shetland, East Greenland, Svalbard, and Norway. Detrital zircon grains from these successions are dominated by late Paleoproterozoic and late Mesoproterozoic ages inferred to have been derived from source terranes of the Grenville Province in eastern Laurentia. Detrital zircon geochronology indicates that Grenville-age detritus was reworked into numerous Phanerozoic successions around the globe. Some of this detritus was derived directly from uplift and erosion of Grenville Province rocks or recycling of detritus from Grenvillian foreland basin deposits during Appalachian-Hercynian orogenesis and assembly of the Pangea supercontinent. Late Mesoproterozoic detritus has been continually recycled into younger stratigraphic successions and remains a significant component of modern river sediments.

KW - Detrital zircon geochronology

KW - Fluvial

KW - Neoproterozoic

KW - Paleogeography

KW - Rodinia

UR - http://www.scopus.com/inward/record.url?scp=84886194887&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84886194887&partnerID=8YFLogxK

U2 - 10.1002/9781444347166.ch29

DO - 10.1002/9781444347166.ch29

M3 - Chapter

SN - 9781405194655

SP - 583

EP - 601

BT - Tectonics of Sedimentary Basins: Recent Advances

PB - John Wiley and Sons

ER -