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Mechanisms for the formation of cratonic stratigraphic sequences

Burgess, Peter M. and Gurnis, Michael (1995) Mechanisms for the formation of cratonic stratigraphic sequences. Earth and Planetary Science Letters, 136 (3-4). pp. 647-663. ISSN 0012-821X. http://resolver.caltech.edu/CaltechAUTHORS:20130327-150113239

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Abstract

North American Phanerozoic cratonic strata comprise six transgressive/regressive sequences separated by interregional unconformities. The mechanism of formation of the sequences and their bounding unconformities remain uncertain. Although eustasy probably contributed, it cannot have acted alone in their formation, as testified by syn-depositional faulting and post-depositional tilting of strata. We have developed a three-dimensional stratigraphic model which incorporates vertical motions from dynamic topography, background cratonic subsidence, eustasy, denudation, mixed carbonate and elastic deposition, Airy isostasy in response to loading and unloading, and mechanical compaction. The model has been used to test possible contributions of eustasy, epeirogeny and background subsidence to patterns of cratonic strata. The results demonstrate the potential of dynamic topography to account for observed long-wavelength tilting. They also demonstrate the importance of background subsidence on the craton in providing accommodation space to accumulate and preserve the observed thicknesses of stratigraphic sequences.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0012-821X(95)00204-PDOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/0012821X9500204PPublisherUNSPECIFIED
Additional Information:© 1995 Elsevier Science B.V. Received 26 July 1995; accepted 11 October 1995; Available online 29 April 1999. Thanks to B. Wilkinson and P. Vail for the constructive reviews. We would like to acknowledge D. Kemp, L. Moresi, S. Zhong, D. Anderson, P. Allen, J. Verlander and G. Robertson for helpful discussions. Thanks in particular to N. Hovius for data on North American rivers, and discussion of some intricacies of denudation. This is contribution number 5570 of the Division of Geological and Planetary Sciences of the California Institute of Technology, and was funded by the David and Lucile Packard Foundation and the National Science Foundation under grant number EAR 9496185.
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
David and Lucile Packard FoundationUNSPECIFIED
NSFEAR-9496185
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Caltech Division of Geological and Planetary Sciences 5570
Record Number:CaltechAUTHORS:20130327-150113239
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130327-150113239
Official Citation:Peter M. Burgess, Michael Gurnis, Mechanisms for the formation of cratonic stratigraphic sequences, Earth and Planetary Science Letters, Volume 136, Issues 3–4, December 1995, Pages 647-663, ISSN 0012-821X, 10.1016/0012-821X(95)00204-P.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37657
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Apr 2013 17:56
Last Modified:11 Jun 2015 12:59

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