Heat flow over Reunion hot spot track: Additional evidence for thermal rejuvenation of oceanic lithosphere

Bonneville, Alain; Herzen, R. P. Von; Lucazeau, Francis

doi:10.1029/97jb00952

Cited by 35 publications

(28 citation statements)

References 45 publications

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“…Heat flow values over the flexural moat would be the lowest on account of the large amount of volcaniclastic sediment infill, with higher values near the volcanic edifice and beyond the flexural arch. These observations are in good agreement with the data from the Hawaiian surveys and from a similar survey conducted at the Réunion hot spot (Bonneville et al, 1997). McNutt (2002) supported this interpretation of the heat flow data by noting that the W pattern of the heat flow over the Hawaiian swell at Maro Reef is actually produced by a W pattern in the large measured variations in thermal conductivity of surface sediments (Figure 16).…”

Section: Heat Flowsupporting

confidence: 83%

Crust and Lithospheric Structure - Hot Spots and Hot-Spot Swells

McNutt

Caress

2007

Treatise on Geophysics

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Section: Heat Flowsupporting

confidence: 83%

Crust and Lithospheric Structure - Hot Spots and Hot-Spot Swells

McNutt

Caress

2007

Treatise on Geophysics

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“…54 km towards Kauai, located about 500 km away from Big Island. Bonneville et al (1995Bonneville et al ( , 1997 performed heat flow measurements along two seismic profiles across the Mascarene Ridge (Fig. 2a).…”

Section: Estimates Of Lithospheric Thickness Beneath La Réunion Maurmentioning

confidence: 99%

“…Red diamonds near La Réunion show the location of OBS used during these two studies. The black stars indicate locations of heat flow measurements realized across the Mascarene Ridge from two profiles (Bonneville et al 1995(Bonneville et al , 1997. (b) Location map of events (in red) producing radial RFs with a signal to noise ratio ≥2 at RER station (black star).…”

Section: Lithospheric Structure Beneath La Réunion Hotspot Track 109mentioning

confidence: 99%

Crustal and uppermost mantle structure variation beneath La Réunion hotspot track

Fontaine¹,

Barruol²,

Tkalčić

et al. 2015

Geophys. J. Int.

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“…As we will see later, this mechanism could contribute to the dynamic support of La Réunion, where virtually no lithospheric flexure exists. Note that Bonneville et al (1997), Michon et al (2007) also suggested a dynamic support by the mantle plume beneath La Réunion.…”

Section: Bathymetry Anomalymentioning

confidence: 94%

Geodynamic Setting of La Réunion

Lénat

2015

Active Volcanoes of the Southwest Indian Ocean

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The island of La Réunion is located in the complex oceanic environment of the Marscarene Basin. The latter was created by oceanic expansion between the late Cretaceous and the Paleocene. The expansion of the Basin stopped at magnetic chron 27 when the spreading jumped north, between the Seychelles and India, to become the Central Indian Ridge. Dating and geodynamic reconstructions support a hot spot origin for La Réunion volcanism. La Réunion lies in the middle of an approximately 350 km-wide zone bounded by transform faults (Mauritius and Mahanoro-Wilshaw Fracture Zones) and a trough identified as the extinct spreading center (chron 27). This compartment exhibits a substantial depth anomaly (several hundreds of meters), possibly related to the interaction with the hot spot plume. Gravity and seismic data show the virtual absence of flexure beneath and around La Réunion. Near La Réunion the organization of the oceanic crust magnetic anomalies is very different from the classic parallel striped oceanic organization. It has been suggested that this pattern might be interpreted in terms of a paleo-triple junction of oceanic rifts. Many seamounts protrude from the sediments in the La Réunion segment, some associated with the transform faults, others associated with a series of parallel ridges and a few isolated others. All these constructions postdate the oceanic crust, but most of them appear to be much older than La Réunion, with the possible exception of some small seamounts close to La Réunion or on its submarine flanks. Regional Tectonic SettingThe Indian Ocean started to open up around 175 Ma (Schettino and Scotese 2005). The early stages of Gondwanan break-up separated Africa from a block composed

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Heat flow over Reunion hot spot track: Additional evidence for thermal rejuvenation of oceanic lithosphere

Cited by 35 publications

References 45 publications

Crust and Lithospheric Structure - Hot Spots and Hot-Spot Swells

Crust and Lithospheric Structure - Hot Spots and Hot-Spot Swells

Crustal and uppermost mantle structure variation beneath La Réunion hotspot track

Geodynamic Setting of La Réunion

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