Evolution of the central West Greenland margin and the Nuussuaq Basin

Localised basin uplift along a stable continental margin proposed from thermochronological data

Scott Jess (Corresponding Author), Randell Stephenson, Roderick Brown

Research output: Contribution to journalArticle

4 Citations (Scopus)
5 Downloads (Pure)

Abstract

The Late Cenozoic is typically considered a time of widespread episodic tectonic uplift along the West Greenland continental margin (36 Ma – 2 Ma), similar to other margins across the North Atlantic, such as Norway, East Greenland and the UK. The present study re‐examines and re‐models onshore thermochronological data from central West Greenland and the Cretaceous Nuussuaq Basin, utilising a Bayesian modelling approach and new concepts related to radiation damage within apatite. These new thermal histories indicate slow protracted cooling has occurred across the southern extent of the margin during the Mesozoic and Cenozoic, whereas those from within the Nuussuaq Basin display reheating through the Late Cretaceous/Palaeogene and cooling to present. Results suggest no significant Late Cenozoic uplift has occurred along the southern margin, while cooling in the Nuussuaq Basin is consistent with events outlined in the basin's stratigraphy and imply uplift during volcanism and an isostatic response to the unroofing of the lithosphere has elevated the modern topography. These results imply significant tectonism in the region ceased by ~45 Ma, yet have wider implications regarding how low temperature thermochronology data are treated and our understanding of the post rift evolution of passive margins.
Original languageEnglish
Pages (from-to)1230-1246
Number of pages17
JournalBasin Research
Volume30
Issue number6
Early online date24 May 2018
DOIs
Publication statusPublished - Dec 2018

Fingerprint

continental margin
uplift
cooling
basin
Cretaceous
radiation damage
thermochronology
unroofing
passive margin
Paleogene
apatite
volcanism
lithosphere
stratigraphy
topography
tectonics
history
modeling

Keywords

  • modelling
  • passive margins
  • stratigraphy
  • tectonics and sedimentation
  • thermochronology

Cite this

Evolution of the central West Greenland margin and the Nuussuaq Basin : Localised basin uplift along a stable continental margin proposed from thermochronological data . / Jess, Scott (Corresponding Author); Stephenson, Randell; Brown, Roderick .

In: Basin Research, Vol. 30, No. 6, 12.2018, p. 1230-1246.

Research output: Contribution to journalArticle

@article{61a6fbf7ec324feaa064ebc5c915db51,
title = "Evolution of the central West Greenland margin and the Nuussuaq Basin: Localised basin uplift along a stable continental margin proposed from thermochronological data",
abstract = "The Late Cenozoic is typically considered a time of widespread episodic tectonic uplift along the West Greenland continental margin (36 Ma – 2 Ma), similar to other margins across the North Atlantic, such as Norway, East Greenland and the UK. The present study re‐examines and re‐models onshore thermochronological data from central West Greenland and the Cretaceous Nuussuaq Basin, utilising a Bayesian modelling approach and new concepts related to radiation damage within apatite. These new thermal histories indicate slow protracted cooling has occurred across the southern extent of the margin during the Mesozoic and Cenozoic, whereas those from within the Nuussuaq Basin display reheating through the Late Cretaceous/Palaeogene and cooling to present. Results suggest no significant Late Cenozoic uplift has occurred along the southern margin, while cooling in the Nuussuaq Basin is consistent with events outlined in the basin's stratigraphy and imply uplift during volcanism and an isostatic response to the unroofing of the lithosphere has elevated the modern topography. These results imply significant tectonism in the region ceased by ~45 Ma, yet have wider implications regarding how low temperature thermochronology data are treated and our understanding of the post rift evolution of passive margins.",
keywords = "modelling, passive margins, stratigraphy, tectonics and sedimentation, thermochronology",
author = "Scott Jess and Randell Stephenson and Roderick Brown",
note = "ACKNOWLEDGEMENTS Tim Redfield and a second anonymous reviewer are thanked for their constructive comments. The work con-tained in this publication contains work conducted during a PhD study undertaken as part of the Natural Environment Research Council (NERC) Centre for Doctoral Training(CDT) in Oil & Gas [grant number NEM00578X/1] and is sponsored by the University of Aberdeen.",
year = "2018",
month = "12",
doi = "10.1111/bre.12301",
language = "English",
volume = "30",
pages = "1230--1246",
journal = "Basin Research",
issn = "0950-091X",
publisher = "Wiley-Blackwell",
number = "6",

}

TY - JOUR

T1 - Evolution of the central West Greenland margin and the Nuussuaq Basin

T2 - Localised basin uplift along a stable continental margin proposed from thermochronological data

AU - Jess, Scott

AU - Stephenson, Randell

AU - Brown, Roderick

N1 - ACKNOWLEDGEMENTS Tim Redfield and a second anonymous reviewer are thanked for their constructive comments. The work con-tained in this publication contains work conducted during a PhD study undertaken as part of the Natural Environment Research Council (NERC) Centre for Doctoral Training(CDT) in Oil & Gas [grant number NEM00578X/1] and is sponsored by the University of Aberdeen.

PY - 2018/12

Y1 - 2018/12

N2 - The Late Cenozoic is typically considered a time of widespread episodic tectonic uplift along the West Greenland continental margin (36 Ma – 2 Ma), similar to other margins across the North Atlantic, such as Norway, East Greenland and the UK. The present study re‐examines and re‐models onshore thermochronological data from central West Greenland and the Cretaceous Nuussuaq Basin, utilising a Bayesian modelling approach and new concepts related to radiation damage within apatite. These new thermal histories indicate slow protracted cooling has occurred across the southern extent of the margin during the Mesozoic and Cenozoic, whereas those from within the Nuussuaq Basin display reheating through the Late Cretaceous/Palaeogene and cooling to present. Results suggest no significant Late Cenozoic uplift has occurred along the southern margin, while cooling in the Nuussuaq Basin is consistent with events outlined in the basin's stratigraphy and imply uplift during volcanism and an isostatic response to the unroofing of the lithosphere has elevated the modern topography. These results imply significant tectonism in the region ceased by ~45 Ma, yet have wider implications regarding how low temperature thermochronology data are treated and our understanding of the post rift evolution of passive margins.

AB - The Late Cenozoic is typically considered a time of widespread episodic tectonic uplift along the West Greenland continental margin (36 Ma – 2 Ma), similar to other margins across the North Atlantic, such as Norway, East Greenland and the UK. The present study re‐examines and re‐models onshore thermochronological data from central West Greenland and the Cretaceous Nuussuaq Basin, utilising a Bayesian modelling approach and new concepts related to radiation damage within apatite. These new thermal histories indicate slow protracted cooling has occurred across the southern extent of the margin during the Mesozoic and Cenozoic, whereas those from within the Nuussuaq Basin display reheating through the Late Cretaceous/Palaeogene and cooling to present. Results suggest no significant Late Cenozoic uplift has occurred along the southern margin, while cooling in the Nuussuaq Basin is consistent with events outlined in the basin's stratigraphy and imply uplift during volcanism and an isostatic response to the unroofing of the lithosphere has elevated the modern topography. These results imply significant tectonism in the region ceased by ~45 Ma, yet have wider implications regarding how low temperature thermochronology data are treated and our understanding of the post rift evolution of passive margins.

KW - modelling

KW - passive margins

KW - stratigraphy

KW - tectonics and sedimentation

KW - thermochronology

U2 - 10.1111/bre.12301

DO - 10.1111/bre.12301

M3 - Article

VL - 30

SP - 1230

EP - 1246

JO - Basin Research

JF - Basin Research

SN - 0950-091X

IS - 6

ER -