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Mascarene plateau

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Journal Article
Journal: GSA Bulletin
Published: 01 October 1967
GSA Bulletin (1967) 78 (10): 1247-1266.
...R. L FISHER; G. L JOHNSON; B. C HEEZEN Abstract The submarine Mascarene Plateau, lying east and northeast of Madagascar in the west central Indian Ocean, extends as a faulted composite arc for 2300 km, from the Precambrian granitic “micro-continent” of Seychelles Bank southward through the coral...
Series: GCSSEPM
Published: 01 December 2005
DOI: 10.5724/gcs.05.25.0373
EISBN: 978-0-9836096-5-0
...-bathymetry is dominated by the triple-junction Indian Ocean spreading center, the mantle plume extrusions forming the Laccadives-Maldives-Chagos and Mascarene Plateau-Mauritius-Reunion chains of volcanic archipelagos and islands, and the mantle plume extrusion of the Ninety-East Ridge. Initial breakup...
Journal Article
Journal: GSA Bulletin
Published: 01 August 1969
GSA Bulletin (1969) 80 (8): 1419-1442.
... and it is concluded that each island had developed independently, and that no correlation of age with respect to distance from the Mid-Indian Ocean Ridge is observed. The volcanism that has built Mauritius and Réunion may be a continuation of the development of the Mascarene Plateau with migration of the activity...
Journal Article
Published: 25 May 2001
Canadian Journal of Earth Sciences (2001) 38 (5): 813-824.
... derivation, ΔNb is calculated to search for a deep-mantle signature (ΔNb > 0). The signature of the Réunion hot spot, from ∼65–0 Ma, is seen in the Deccan Traps, India, lavas from the Mascarene Plateau, and Réunion Island. The signature of the Kerguélen plume is detected in rocks from Kerguélen Island...
FIGURES | View All (5)
Journal Article
Published: 01 January 2007
Bulletin of the Seismological Society of America (2007) 97 (1A): S208-S222.
..., and C. The white rectangle indicates the Mascarene Islands region. Note the effect of oceanic features (ridges, plateaus) in lowering the tsunami impact. Figure 11. Snapshots of the tsunami wave field (model A) showing several reflections on coastlines or shallow oceanic features (ridge...
FIGURES | View All (12)
Journal Article
Published: 01 August 2006
The Canadian Mineralogist (2006) 44 (4): 905-927.
... igneous ages and 40 Ar/ 39 Ar amphibole cooling ages of 418–410 Ma in the Kingston arc. Near-plateau 40 Ar/ 39 Ar muscovite ages from two samples in the Pocologan Metamorphic Suite are much younger (~345–342 Ma) and are interpreted to represent the minimum cooling age following major mylonitization during...
FIGURES | View All (8)
... created the world’s highest, youngest, and most tectonically active mountain belt on Earth—the Himalayan Mountains–Tibetan Plateau. As India converged with Asia, the Nanga Parbat syntaxis (NPS) and Namcha Barwa syntaxis (NBS) functioned like two prongs of a rigid, V-shaped indentor that produced...
FIGURES | View All (5)
Journal Article
Published: 01 July 2009
Bulletin de la Société Géologique de France (2009) 180 (4): 369-381.
... and Madagascar across the Mascarene plateau and the Lacca-dive-Chagos aseismic ridges [ Sahni, 1984 ; Sahni et al ., 1987 ]. However, it has been shown that the Lacca-dive-Chagos ridge and the Mascarene plateau were formed as a trail of hotspot volcanism post-dating the rifting event along the Carlsberg ridge...
FIGURES
Image
Zr/Y vs. Nb/Y variation in rocks derived from the Réunion hot spot. Paralle...
Published: 25 May 2001
for details. ( c ) Mascarene Plateau and Réunion Island; 7XX denote ODP sites, Mascarene Plateau; H and L denote high- and low-Nb lavas, respectively. All rocks show ΔNb > 0 (see text). Sources of data are Albarede et al. ( 1997 ), Baxter ( 1990 ), Fisk et al. ( 1988 ), Krishnamurthy and Cox ( 1977
Journal Article
Journal: Geology
Published: 01 March 2001
Geology (2001) 29 (3): 203-206.
... and subsequent long-term asymmetries in oceanic crustal accretion based on four recent examples: the Seychelles in the Indian Ocean, Jan Mayen in the Norwegian-Greenland Sea, and the East Tasman Plateau and the Gilbert Seamount Complex in the Tasman Sea. These microcontinents formed by rerifting of a young...
FIGURES
Image
Time-bearing plots based on coherent  processing for the two Diego Garcia h...
Published: 01 January 2007
and possible refraction of lower frequencies by the Chagos Archipelago. The presence of the archipelago also explains the absence of a single, coherent direct signal at H08N. Secondary arrivals with bearings from 240 to 270° are interpreted to be reflections from the Mascarene Plateau. Lobes in the triad
Image
Map of the western Indian Ocean showing the distribution of volcanic rocks ...
in > Elements
Published: 01 December 2005
the 200-300 km wide Chagos-Lacadive Ridge, across the Carlsberg Ridge spreading center, to the Mascarene Plateau and eventually to Réunion Island, the current position of the plume. Between 60 and 40 Ma, the Réunion plume was located under the Carlsberg Ridge. It produced a volcanic ridge on both sides
Image
Map showing inferred location of reflections  for the December tsunami. Lig...
Published: 01 January 2007
. The reflector locations can be inferred by locations of steep bathymetry and the main radiation pattern from the tsunami. Both H08N and COCO observed a reflection from a part of the Mascarene Plateau near the Seychelles. COCO, H01W, and AIS observed reflections from the Maldives (three different islands
Image
Computed maximum water heights after  12 hours of propagation in the Indian...
Published: 01 January 2007
Figure 6. Computed maximum water heights after 12 hours of propagation in the Indian Ocean for models A, B, and C. The white rectangle indicates the Mascarene Islands region. Note the effect of oceanic features (ridges, plateaus) in lowering the tsunami impact.
Image
A Earliest Eocene paleogeographic map showing locations referred to in the ...
Published: 01 January 2013
Carpathians; 26 Polish Middle Carpathians; 27 Untersberg and 28 Anthering, Austria; 29 Staja section, Romanian eastern Carpathians; 30 Contessa Road, Italy; 31 Caravaca, SE Spain; 32 Alamedilla, S Spain; 33 Dababiya Quarry, E Egypt; 34 W Indian Ocean DSDP Site 237, Mascarene Plateau; 35 E Indian Ocean ODP
Series: AAPG Studies in Geology
Published: 01 January 2004
DOI: 10.1306/St49974C3
EISBN: 9781629810508
... hot spot (Morgan, 1972, 1981; Duncan and Hargraves, 1990). The track of the Réunion hot spot includes the massive Deccan Trap basalts in India, the Chagos-Laccadive ridge, and the Mascarene Plateau (Saya de Maya, Nazareth, and Cargados Carajos banks) in the southwestern Indian Ocean (Figure 4...
FIGURES
Image
Snapshots of the tsunami wave field (model A) showing several reflections  ...
Published: 01 January 2007
Figure 11. Snapshots of the tsunami wave field (model A) showing several reflections on coastlines or shallow oceanic features (ridge, plateaus). A reflection on Madagascar (solid red and blue lines) is evidenced from 9 hours of propagation, and propagates back toward the Mascarene Islands
Journal Article
Published: 01 January 2007
Bulletin of the Seismological Society of America (2007) 97 (1A): S232-S248.
... and possible refraction of lower frequencies by the Chagos Archipelago. The presence of the archipelago also explains the absence of a single, coherent direct signal at H08N. Secondary arrivals with bearings from 240 to 270° are interpreted to be reflections from the Mascarene Plateau. Lobes in the triad...
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Journal Article
Journal: Elements
Published: 01 December 2005
Elements (2005) 1 (5): 265-269.
... the 200-300 km wide Chagos-Lacadive Ridge, across the Carlsberg Ridge spreading center, to the Mascarene Plateau and eventually to Réunion Island, the current position of the plume. Between 60 and 40 Ma, the Réunion plume was located under the Carlsberg Ridge. It produced a volcanic ridge on both sides...
FIGURES | View All (6)
Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.195.01.02
EISBN: 9781862394438
.... In a second stage that started in mid-Cretaceous time, the Seychelles and India separated from Madagascar, leading to the opening of the Mas-carene Basin. During Paleocene time, sea-floor spreading progressively stopped in the Mascarene Basin although resuming north of the Seychelles-Mascarene Plateau...
FIGURES | View All (4)