Stratigraphy of the southern Norfolk Ridge and the Reinga Basin: A record of initiation of Tonga–Kermadec–Northland subduction in the southwest Pacific

Bache, François; Sutherland, Rupert; Stagpoole, Vaughan; Herzer, R. H.; Collot, Julien; Rouillard, Pierrick

doi:10.1016/j.epsl.2011.12.041

Cited by 65 publications

(98 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar surfaces also have been identified in the Reinga Basin (Bache et al, 2012). Our discovery of shallow-water (<400 m) fossils at several sites near these horizons provides the first compelling evidence of substantial vertical motions during the Cenozoic.…”

Section: Paleogeography and Vertical Tectonic Motionssupporting

confidence: 79%

“…Seismic-stratigraphic evidence shows that the New Caledonia Trough either formed or was substantially modified during this event, though Cretaceous sedimentary basins beneath the trough escaped Cenozoic convergent deformation in most places (Collot et al, 2008;Sutherland et al, 2010). Regional deformation and emplacement of allochthons in northern New Zealand occurred later than in New Caledonia or the Norfolk Ridge system, with the onset of tectonic activity during the late Oligocene and early Miocene (~30-20 Ma) (Bache et al, 2012;Herzer, 1995;Herzer et al, 1997;Rait et al, 1991;Stagpoole and Nicol, 2008).…”

Section: Geological Settingmentioning

confidence: 98%

“…The proximal region is deformed and presumably was involved in the initial phase of surface convergence (Sutherland et al, 2017). Knowledge from New Caledonia, IODP Sites U1507 and U1508, and New Zealand produce a proximal boundary-parallel transect that progressively samples initial rates of predicted convergence (Bache et al, 2012).…”

Section: Drilling Strategymentioning

confidence: 99%

“…The location is on the northeast margin of Reinga Basin (Bache et al, 2012), which contains folded Eocene strata that have been dredged but never drilled (Browne et al, 2016). The site was chosen to sample a record of deformation, uplift, subsidence, and early arc volca-nism in a southern region proximal to Tonga-Kermadec subduction initiation .…”

Section: Site U1508 (Reinga Basin)mentioning

confidence: 99%

See 3 more Smart Citations

Untitled

Sutherland¹,

Dickens²,

Blum³

et al. 2018

International Ocean Discovery Program Preliminary Report

View full text Add to dashboard Cite

International Ocean Discovery Program (IODP) Expedition 371 drilled six sites in the Tasman Sea of the southwest Pacific between 27 July and 26 September 2017. The primary goal was to understand Tonga-Kermadec subduction initiation through recovery of Paleogene sediment records. Secondary goals involved understanding regional oceanography and climate since the Paleogene. Six sites were drilled, recovering 2506 m of cored sediment and volcanic rock in 36.4 days of on-site drilling during a total expedition length of 58 days. Wireline logs were collected at two sites. Shipboard observations made using cores and logs represent a substantial gain in fundamental knowledge about northern Zealandia, because only Deep Sea Drilling Project Sites 206, 207, and 208 had penetrated beneath upper Eocene strata within the region.The cored intervals at five sites (U1506-U1510) sampled nannofossil and foraminiferal ooze or chalk that contained volcanic or volcaniclastic intervals with variable clay content. Paleocene and Cretaceous sections range from more clay rich to predominantly claystone. At the final site (U1511), a sequence of abyssal clay and diatomite was recovered with only minor amounts of carbonate. The ages of strata at the base of each site were middle Eocene to Late Cretaceous, and our new results provide the first firm basis for defining formal lithostratigraphic units that can be mapped across a substantial part of northern Zealandia and related to onshore regions of New Caledonia and New Zealand.The material and data recovered during Expedition 371 enable primary scientific goals to be accomplished. All six sites provided new stratigraphic and paleogeographic information that can be put into context through regional seismic-stratigraphic interpretation and hence provide strong constraints on geodynamic models of subduction zone initiation. Our new observations can be directly related to the timing of plate deformation, the magnitude and timing of vertical motions, and the timing and type of volcanism. Secondary paleoclimate objectives were not all completed as planned, but significant new records of southwest Pacific climate were obtained.

show abstract

Section: Paleogeography and Vertical Tectonic Motionssupporting

confidence: 79%

Section: Geological Settingmentioning

confidence: 98%

Section: Drilling Strategymentioning

confidence: 99%

Section: Site U1508 (Reinga Basin)mentioning

confidence: 99%

See 2 more Smart Citations

Untitled

Sutherland¹,

Dickens²,

Blum³

et al. 2018

International Ocean Discovery Program Preliminary Report

View full text Add to dashboard Cite

show abstract

“…remnant volcanic arcs formed by Mesozoic subduction, Cretaceous rifting and Cenozoic subduction (Crawford et al, 2003;Sdrolias et al, 2003;Schellart et al, 2006;Bache et al, 2012). The Tonga fore-arc, therefore, may preserve aspects of this complex evolutionary history.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Cretaceous fore-arc basalts from the Tonga arc: Geochemistry and implications for the tectonic history of the SW Pacific

et al. 2014

View full text Add to dashboard Cite

The Tonga fore arc preserves a complex history of subduction initiation, back-arc basin formation and arc volcanism which has extended from the Cretaceous to the present. In this paper, we discuss the geochemistry of a Cretaceous basalt/dolerite/gabbro suite recovered in two dredges from the Tonga fore-arc at ~19°S. The geochemistry of the Tonga fore-arc suite is unlike that of the uniformly depleted MORB basalts of the subducting Pacific plate and therefore is unlikely to be accreted Pacific Cretaceous crust. The ~102Ma age obtained for one Tongan fore-arc dolerite is contemporaneous with a major phase of Cretaceous subduction-related volcanism, recorded both in detrital zircon age populations and associated volcanics from New Caledonia and New Zealand. We believe the Tonga fore-arc basalts are a remnant of a hypothesized, once extensive Cretaceous back-arc basin, called the East New Caledonia Basin, which we propose existed from ~102 -50 Ma. The allochthonous Poya terrane of New Caledonia is geochemically very similar to the Tonga fore arc basalts and represents a younger (~84 -55 Ma) remnant of the same basin. Subduction-related Cretaceous volcanics from the SW Pacific, representing both arc and back-arc settings, all appear to have similar Zr/Nb values, suggesting a common mantle component in their petrogenesis. The Tonga fore arc basalts are also similar to fore arc basalts recovered from the the Izu-Bonin-Mariana fore arc, but unlike these basalts they are not associated with subduction intiation.

show abstract