Long-lived transcontinental sediment transport pathways of East Gondwana

Sara Morón, Peter A. Cawood, Peter W. Haines, Stephen J. Gallagher, Sabin Zahirovic, Christopher J. Lewis, Louis Moresi

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Few modern sediment dispersal pathways predate the breakup of Pangea. This suggests that river lifespan can be controlled by continental assembly and dispersal cycles, with the longest-lived river systems present during supercontinent regimes. Based on the strikingly similar age spectra and Hf isotopic array extracted from Paleozoic to early Mesozoic sedimentary sequences from the Paleo-Tethyan margin basins, we argue that a long-lived supercontinental- scale system, with headwaters originating in Antarctica, flowed northward to finally debouch on the margin with the Paleo-Tethys Ocean. Channel-belt thickness scaling relationships, which provide an estimate of drainage area, support the notion that this was a supercontinental-scale system. Sediments were eroded from Proterozoic orogenic belts and flanked resistant kernels of Archean cratons. Remnants of this system, which can still be traced today as topographic lows, controlled post-breakup drainage patterns in Gondwanan fragments in Western Australia. We conclude that supercontinental regimes allow sediment dispersal systems to be long-lived, as they provide both an abundant sediment supply, due to erosion of large-scale, collision-related internal mountain systems, and a stable, large-scale configuration that lasts until breakup.

Original languageEnglish
Pages (from-to)513-516
Number of pages4
JournalGeology
Volume47
Issue number6
DOIs
Publication statusPublished - 1 Jun 2019

Keywords

  • Craton
  • Detrital zircon
  • Zircon

Cite this

Morón, S., Cawood, P. A., Haines, P. W., Gallagher, S. J., Zahirovic, S., Lewis, C. J., & Moresi, L. (2019). Long-lived transcontinental sediment transport pathways of East Gondwana. Geology, 47(6), 513-516. https://doi.org/10.1130/G45915.1
Morón, Sara ; Cawood, Peter A. ; Haines, Peter W. ; Gallagher, Stephen J. ; Zahirovic, Sabin ; Lewis, Christopher J. ; Moresi, Louis. / Long-lived transcontinental sediment transport pathways of East Gondwana. In: Geology. 2019 ; Vol. 47, No. 6. pp. 513-516.
@article{50bfd3eefa884ebf8db44a4d5050fc38,
title = "Long-lived transcontinental sediment transport pathways of East Gondwana",
abstract = "Few modern sediment dispersal pathways predate the breakup of Pangea. This suggests that river lifespan can be controlled by continental assembly and dispersal cycles, with the longest-lived river systems present during supercontinent regimes. Based on the strikingly similar age spectra and Hf isotopic array extracted from Paleozoic to early Mesozoic sedimentary sequences from the Paleo-Tethyan margin basins, we argue that a long-lived supercontinental- scale system, with headwaters originating in Antarctica, flowed northward to finally debouch on the margin with the Paleo-Tethys Ocean. Channel-belt thickness scaling relationships, which provide an estimate of drainage area, support the notion that this was a supercontinental-scale system. Sediments were eroded from Proterozoic orogenic belts and flanked resistant kernels of Archean cratons. Remnants of this system, which can still be traced today as topographic lows, controlled post-breakup drainage patterns in Gondwanan fragments in Western Australia. We conclude that supercontinental regimes allow sediment dispersal systems to be long-lived, as they provide both an abundant sediment supply, due to erosion of large-scale, collision-related internal mountain systems, and a stable, large-scale configuration that lasts until breakup.",
keywords = "Craton, Detrital zircon, Zircon",
author = "Sara Mor{\'o}n and Cawood, {Peter A.} and Haines, {Peter W.} and Gallagher, {Stephen J.} and Sabin Zahirovic and Lewis, {Christopher J.} and Louis Moresi",
year = "2019",
month = "6",
day = "1",
doi = "10.1130/G45915.1",
language = "English",
volume = "47",
pages = "513--516",
journal = "Geology",
issn = "0091-7613",
publisher = "Geological Society of America",
number = "6",

}

Morón, S, Cawood, PA, Haines, PW, Gallagher, SJ, Zahirovic, S, Lewis, CJ & Moresi, L 2019, 'Long-lived transcontinental sediment transport pathways of East Gondwana' Geology, vol. 47, no. 6, pp. 513-516. https://doi.org/10.1130/G45915.1

Long-lived transcontinental sediment transport pathways of East Gondwana. / Morón, Sara; Cawood, Peter A.; Haines, Peter W.; Gallagher, Stephen J.; Zahirovic, Sabin; Lewis, Christopher J.; Moresi, Louis.

In: Geology, Vol. 47, No. 6, 01.06.2019, p. 513-516.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Long-lived transcontinental sediment transport pathways of East Gondwana

AU - Morón, Sara

AU - Cawood, Peter A.

AU - Haines, Peter W.

AU - Gallagher, Stephen J.

AU - Zahirovic, Sabin

AU - Lewis, Christopher J.

AU - Moresi, Louis

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Few modern sediment dispersal pathways predate the breakup of Pangea. This suggests that river lifespan can be controlled by continental assembly and dispersal cycles, with the longest-lived river systems present during supercontinent regimes. Based on the strikingly similar age spectra and Hf isotopic array extracted from Paleozoic to early Mesozoic sedimentary sequences from the Paleo-Tethyan margin basins, we argue that a long-lived supercontinental- scale system, with headwaters originating in Antarctica, flowed northward to finally debouch on the margin with the Paleo-Tethys Ocean. Channel-belt thickness scaling relationships, which provide an estimate of drainage area, support the notion that this was a supercontinental-scale system. Sediments were eroded from Proterozoic orogenic belts and flanked resistant kernels of Archean cratons. Remnants of this system, which can still be traced today as topographic lows, controlled post-breakup drainage patterns in Gondwanan fragments in Western Australia. We conclude that supercontinental regimes allow sediment dispersal systems to be long-lived, as they provide both an abundant sediment supply, due to erosion of large-scale, collision-related internal mountain systems, and a stable, large-scale configuration that lasts until breakup.

AB - Few modern sediment dispersal pathways predate the breakup of Pangea. This suggests that river lifespan can be controlled by continental assembly and dispersal cycles, with the longest-lived river systems present during supercontinent regimes. Based on the strikingly similar age spectra and Hf isotopic array extracted from Paleozoic to early Mesozoic sedimentary sequences from the Paleo-Tethyan margin basins, we argue that a long-lived supercontinental- scale system, with headwaters originating in Antarctica, flowed northward to finally debouch on the margin with the Paleo-Tethys Ocean. Channel-belt thickness scaling relationships, which provide an estimate of drainage area, support the notion that this was a supercontinental-scale system. Sediments were eroded from Proterozoic orogenic belts and flanked resistant kernels of Archean cratons. Remnants of this system, which can still be traced today as topographic lows, controlled post-breakup drainage patterns in Gondwanan fragments in Western Australia. We conclude that supercontinental regimes allow sediment dispersal systems to be long-lived, as they provide both an abundant sediment supply, due to erosion of large-scale, collision-related internal mountain systems, and a stable, large-scale configuration that lasts until breakup.

KW - Craton

KW - Detrital zircon

KW - Zircon

UR - http://www.scopus.com/inward/record.url?scp=85066454413&partnerID=8YFLogxK

U2 - 10.1130/G45915.1

DO - 10.1130/G45915.1

M3 - Article

VL - 47

SP - 513

EP - 516

JO - Geology

JF - Geology

SN - 0091-7613

IS - 6

ER -

Morón S, Cawood PA, Haines PW, Gallagher SJ, Zahirovic S, Lewis CJ et al. Long-lived transcontinental sediment transport pathways of East Gondwana. Geology. 2019 Jun 1;47(6):513-516. https://doi.org/10.1130/G45915.1