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Auzende, J.M.; Beuque, Sabrina Van de; Dickens, Gerald R.; François, Caroline; Lavoy, Yves; Voutay, Olivier; Exon, N. F.

doi:10.1023/a:1004848715044

Cited by 25 publications

(5 citation statements)

References 22 publications

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“…Five high-resolution profiles, simultaneously recorded on a 3.5 km long 360-channel seismic streamer and on 12 ocean bottom seismometers (OBSs), provided the detailed velocity structure of the substratum, in a narrow zone of 30 Â 40 km 2 . Nouzé et al [2005Nouzé et al [ , also submitted manuscript, 2008 identified two distinct reflectors (RN and RP on Figure 7), both located at the base of a seismically transparent, upper sedimentary sequence: the first one (identified as RN) is located between 3 and 3.5 s twt below sea level and related to a seismic phase inversion, whereas the second one (identified as RP) is a bottom simulating reflector, as documented by previous authors [Exon et al, 1998;Auzende et al, 2000a;Exon et al, 2004;Pecher, 2004]. The presence of a seismically transparent layer overlying reflector RN and the phase inversion suggests that RN likely corresponds to the regional Eocene Oligocene unconformity.…”

Section: Link From Lhr Down Into the Fairway Basinsupporting

confidence: 60%

“…[14] 2. High-resolution seismic lines from the Fairway Basin were collected during the ZoNeCo-11 cruise [Lafoy et al, 2004] (September 2004 to characterize the reflectors that were once interpreted as gas hydrate-related bottom simulating reflectors (BSR) [Exon et al, 1998;Auzende et al, 2000a;Pecher, 2004]. These lines are used to connect the Fairway Basin and regional seismic transects across the New Caledonia Basin.…”

Section: Seismic Data Descriptionmentioning

confidence: 99%

“…[25] Following RN along profile z11-04 ( Figure 12) northward, we identify the position of RN in the northern New Caledonian Basin, and match it to the tilted reflector observed on profile z11-01A ( Figure 13). Previous authors [Willcox et al, 1980;Exon et al, 1998;Lafoy et al, 1998;Van de Beuque, 1999;Auzende et al, 2000a;Vially et al, 2003;Lafoy et al, 2005b] interpreted the New Caledonia Basin as Cretaceous-Paleocene and placed the Eocene Oligocene unconformity U1 around 4 -5 s twt below sea level (bsl) in the New Caledonia Basin and around 4 s twt (bsl) in the Fairway Basin. U1's position is here confirmed Figure 6.…”

Section: Link From Lhr Down Into the Fairway Basinmentioning

confidence: 99%

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Tectonic history of northern New Caledonia Basin from deep offshore seismic reflection: Relation to late Eocene obduction in New Caledonia, southwest Pacific

et al. 2008

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International audienceNew, high-quality multichannel seismic reflection data from the western New Caledonia offshore domain allow for the first time the direct, continuous connection of seismic reflectors between the Deep Sea Drilling Project 208 drill hole on the Lord Howe Rise and the New Caledonia Basin. A novel seismic interpretation is hence proposed for the northern New Caledonia Basin stratigraphy, which places the Eocene/Oligocene unconformity deeper than previously thought and revisits the actual thickness of the pre-Oligocene sequences. A causal link is proposed between the obduction of the South Loyalty Basin over New Caledonia (NC) and the tectonic history of the northern New Caledonia Basin. Here it is suggested that as the South Loyalty Basin was being obducted during early Oligocene times, the NC Basin subsided under the effect of the overloading and underthrusted to accommodate the compressional deformation, which resulted in (1) the uplift of the northern Fairway Ridge and (2) the sinking of the western flank of New Caledonia. This event also had repercussions farther west with the incipient subsidence of the Lord Howe Rise

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Section: Link From Lhr Down Into the Fairway Basinsupporting

confidence: 60%

Section: Seismic Data Descriptionmentioning

confidence: 99%

Section: Link From Lhr Down Into the Fairway Basinmentioning

confidence: 99%

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Tectonic history of northern New Caledonia Basin from deep offshore seismic reflection: Relation to late Eocene obduction in New Caledonia, southwest Pacific

et al. 2008

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“…Recent wide-angle refraction seismic studies revealed a 15 kmthick continental crust beneath the basin (Klingelhoefer et al 2007). More than 100 diapirs have been mapped within the sedimentary column and a bottom simulating reflector (BSR) has been identified across an area of 70,000 km² (Auzende et al 2000a;Auzende et al 2000b;Auzende et al 2000c). This BSR was initially interpreted as being the world's largest gas hydrate field, but subsequent reinterpretation from high-resolution refraction seimsic data and heat flow measurements suggested that the reflector was related to an opal-A to opal-CT diagenetic front (Nouzé et al 2009).…”

Section: Offshore Potentialmentioning

confidence: 99%

Chapter 9 Mineral resources and prospectivity of non-ultramafic rocks of New Caledonia

Maurizot

Sevin

Lesimple

et al. 2020

Memoirs

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The mineral resources of the non-ultramafic rocks of New Caledonia and its Exclusive Economic Zone can be classified according to their host rocks. The metallic mineral resources are essentially associated with volcanic and magmatic activity. Non-economic volcanogenic massive sulfide deposits with Cu and Au are located in the Late Carboniferous Koh Ophiolite and in the Late Cretaceous Poya Terrane. Base metals, Au and Ag of the sedimentary–exhalative type are present in the metamorphic Diahot-Panié Metamorphic Complex, associated with syn-rift volcanism. An Au–Sb metallogenic province is associated with the post-obduction Late Oligocene granitoids and co-genetic hydrothermal silica–carbonate (listwanite) zones in the Peridotite Nappe; Au is disseminated in the granites and Sb occurs as lodes in the silica–carbonate. Among the non-metallic mineral resources, barite, gypsum, magnesite, phosphate, clays, dimension stones, limestone for use as cement and as a neutralizer, and aggregates are all present. Gemstones such as jade and chrysoprase are only used locally. Late Cretaceous coal, which was briefly exploited in the past, is now considered to be a source rock for an offshore potential oil and gas system. Petroleum prospectivity is currently focused on the Fairway Basin. Several low-enthalpy thermo-mineral springs with a weak geothermal energy potential are known on Grande Terre.

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“…Owning to the limitation to data, a deep understanding of the distribution, the extensional process, the law of the later reformation, and the prospect of the exploration of the hydrate is still lacking. In recent years, with the development of seismic exploration and ocean drilling, it has shown that it has an important potential for gas hydrate exploration in view of the Upper Cretaceous coal-measure source rocks from drillings (Van de Beuque et al, 2003;Kroeger et al, 2017), especially the findings of BSR (bottom simulating reflection) and diapir and crater in the Fairway (Exon et al, 1998) and Taranaki basins (Auzende et al, 2000;Pierrick et al, 2015;Kroeger et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Distribution, development, transformation characteristics, and hydrate prospect prediction of the rift basins of northwest Zealandia in the Southwest Pacific

Song

Feng²,

Yang³

et al. 2022

Front. Earth Sci.

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As the last area with unknown oil exploration potential, Zealandia has attracted the attention of petroleum scientists. Under the constraint of the known rift distribution, the gravity and magnetic anomaly data are utilized to predict the distribution of rift basins, and the balanced cross-section technique and basin simulation technique are utilized to analyze the development of the rift basins and hydrocarbon generation history of source rocks for the hydrate prospect prediction of the rift basins of northwest Zealandia. The time of rifting in Zealandia varies greatly from place to place, and it has experienced extensive rifts, migrated to the east of the Lord Howe Ridge, migrated to the west of the Lord Howe Ridge, migrated to the west of the Dampier Ridge, and finally migrated to both sides of the Lord Howe Ridge and then experienced multiple stages of compression transformation and deep burial transformation. The Upper Cretaceous coal source rock in the rift Ⅱ stage has entered the wet gas generation stage in the deep part of the rift or deeper rift on the eastern side of the Lord Howe Ridge, and the coal-generated wet gas may migrate along the fault and form a gas hydrate in the shallow seabed stable zone.

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Cited by 25 publications

References 22 publications

Tectonic history of northern New Caledonia Basin from deep offshore seismic reflection: Relation to late Eocene obduction in New Caledonia, southwest Pacific

Tectonic history of northern New Caledonia Basin from deep offshore seismic reflection: Relation to late Eocene obduction in New Caledonia, southwest Pacific

Chapter 9 Mineral resources and prospectivity of non-ultramafic rocks of New Caledonia

Distribution, development, transformation characteristics, and hydrate prospect prediction of the rift basins of northwest Zealandia in the Southwest Pacific

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