Continental-scale geographic change across Zealandia during Paleogene subduction initiation-Reference-Cited by-同舟云学术

Continental-scale geographic change across Zealandia during Paleogene subduction initiation

Published:2020-02-06 Issue:5 Volume:48 Page:419-424
ISSN:0091-7613
Container-title:Geology
language:en
Short-container-title:

Author:

Sutherland R.¹,Dickens G.R.²,Blum P.³,Agnini C.⁴,Alegret L.⁵,Asatryan G.⁶,Bhattacharya J.²,Bordenave A.⁷,Chang L.⁸,Collot J.⁷,Cramwinckel M.J.⁹,Dallanave E.¹⁰,Drake M.K.¹¹,Etienne S.J.G.⁷,Giorgioni M.¹²,Gurnis M.¹³,Harper D.T.¹¹,Huang H.-H.M.¹⁴,Keller A.L.¹⁵,Lam A.R.¹⁶,Li H.¹⁷,Matsui H.¹⁸,Morgans H.E.G.¹⁹,Newsam C.²⁰,Park Y.-H.²¹,Pascher K.M.¹⁹,Pekar S.F.²²,Penman D.E.²³,Saito S.²⁴,Stratford W.R.¹⁹,Westerhold T.²⁵,Zhou X.²⁶

Affiliation:

1. SGEES, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand

2. Earth, Environmental and Planetary Sciences, Rice University, Houston, Texas 77005, USA

3. International Ocean Discovery Program, Texas A&M University, College Station, Texas 77845-9547, USA

4. Dipartimento di Geoscienze, Università di Padova, 35131 Padova, Italy

5. Departamento de Ciencias de la Tierra & IUCA, Universidad de Zaragoza, 50009 Zaragoza, Spain

6. Museum für Naturkunde, Leibniz-Institut für Evolutions und Biodiversitätsforschung, 10115 Berlin, Germany

7. Geological Survey of New Caledonia, Noumea BP 465, New Caledonia

8. School of Earth and Space Sciences, Peking University, Beijing, China

9. Department of Earth Sciences, Utrecht University, 3584 CB Utrecht, The Netherlands

10. Faculty of Geosciences, Universität Bremen, 28359 Bremen, Germany

11. Ocean Sciences Department, University of California, Santa Cruz, California 95064, USA

12. Instituto de Geociência, Universidade de Brasília, Brasília, Brazil

13. Seismological Laboratory, California Institute of Technology, Pasadena, California 91125, USA

14. Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo 113-8654, Japan

15. Department of Earth Sciences, University of California, Riverside, California 92521, USA

16. Department of Geosciences, University of Massachusetts, Amherst, Massachusetts 01003-9297, USA

17. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

18. Department of Earth Science, Tohoku University, Sendai 980-8572, Japan

19. GNS Science, P.O. Box 30368, Lower Hutt 5040, New Zealand

20. Department of Earth Sciences, University College London, London WC1E 6BT, UK

21. Department of Oceanography, Pusan National University, Busan 46421, Republic of Korea

22. School of Earth and Environmental Sciences, Queens College (CUNY), Flushing, New York 11451, USA

23. Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06511, USA

24. Research and Development Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, 236-0001, Japan

25. Center for Marine Environmental Sciences (MARUM), University of Bremen, 28359 Bremen, Germany

26. Institute of Marine and Coastal Sciences, Rutgers University, Rutgers, New Jersey 08854, USA

Abstract

Abstract Data from International Ocean Discovery Program (IODP) Expedition 371 reveal vertical movements of 1–3 km in northern Zealandia during early Cenozoic subduction initiation in the western Pacific Ocean. Lord Howe Rise rose from deep (∼1 km) water to sea level and subsided back, with peak uplift at 50 Ma in the north and between 41 and 32 Ma in the south. The New Caledonia Trough subsided 2–3 km between 55 and 45 Ma. We suggest these elevation changes resulted from crust delamination and mantle flow that led to slab formation. We propose a “subduction resurrection” model in which (1) a subduction rupture event activated lithospheric-scale faults across a broad region during less than ∼5 m.y., and (2) tectonic forces evolved over a further 4–8 m.y. as subducted slabs grew in size and drove plate-motion change. Such a subduction rupture event may have involved nucleation and lateral propagation of slip-weakening rupture along an interconnected set of preexisting weaknesses adjacent to density anomalies.

Publisher

Geological Society of America

Subject

Geology

Link

https://pubs.geoscienceworld.org/gsa/geology/article-pdf/48/5/419/4980672/419.pdf

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