Between a hotspot and a cold spot: Isotopic variation in the Southeast Indian ridge asthenosphere, 86°E-118°E

Journal of Petrology

Volumn 43, Issue 7, 2002, Pages 1155-1176

  Mahoney, J J ^a   Graham, D W ^b   Christie, D M ^b   Johnson, K T M ^c   Hall, L S ^a   Vonderhaar, D L ^a  

^a UNIVERSITY OF HAWAII   (United States)

^b OREGON STATE UNIVERSITY   (United States)

^c BISHOP MUSEUM   (United States)

Author keywords

Indian Ocean hotspots; Isotopes and trace elements; Mantle geochemistry; Southeast Indian Ridge

Indexed keywords

ASTHENOSPHERE; FLOOD BASALT; HOT SPOT; ISOTOPIC COMPOSITION; LARGE IGNEOUS PROVINCE;

INDIAN OCEAN;

EID: 0036078918     PISSN: 00223530     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (95)

1. Radiogenic ingrowth in systems with multiple reservoirs: Applications to the differentiation of the mantle crust system
2. The statistics and distribution of helium in the mantle
3. Chemical and isotopic variations along the superfast spreading East Pacific Rise from 6°S to 30°S
4. Geochemistry of Heard Island (southern Indian Ocean): Characterization of an enriched mantle component and implications for enrichment of the sub-Indian ocean mantle
5. Rb-Sr mantle isochrons from oceanic regions
6. Sr, Nd and Pb isotopic variation along the Pacific-Antarctic risecrest, 53-57°S: Implications for the composition and dynamics of the south Pacific upper mantle
7. Petrology and Sr, Nd and Pb isotope geochemistry of MORB glasses from the 11°45'N to 15°00'N segment of the East Pacific Rise
8. Chaotic topography, mantle flow and mantle migration in the Australian-Antarctic Discordance
9. Lead isotope relations in oceanic ridge basalts from the Juan de Fuca-Gorda Ridge area, N.E. Pacific Ocean
10. The Southeast Indian Ridge between 88°E and 118°E: Gravity anomalies and crustal accretion at intermediate spreading rates
11. Coexistence of Indian and Pacific oceanic upper mantle reservoirs beneath the central New Hebrides island arc
12. Basalt basement from the Kerguelen Plateau and the trail of a Dupal plume
13. The global tectonic pattern
14. A Nd isotopic study of the Kerguelen Islands: Inferences on enriched oceanic mantle sources
15. Kerguelen: Continental fragment or oceanic island? Petrology and isotopic geochemistry evidence
16. The geochemical structure of the south-east Indian ridge
17. The age and distribution of mantle heterogeneity along the Mid-Atlantic ridge (31-41°N)
18. The life cycle of Indian Ocean hotspots
19. Petrogenesis of the Bunbury Basalt, Western Australia: Interaction between the Kerguelen plume and Gondwana lithosphere?
20. Involvement of continental crust in the formation of the Cretaceous Kerguelen Plateau: New perspectives from ODP Leg 120 sites
21. East Pacific Rise MORB through the Pb isotope looking glass
22. Petrology and geochemistry of Kerguelen basalts (South Indian Ocean): Evolution of the mantle sources from ridge to an intraplate position
23. 1994 compilation of working values and sample description for 383 geostandards
24. He, Pb, Sr and Nd isotope constraints on magma genesis and mantle heterogeneity beneath young Pacific seamounts
25. Helium isotope geochemistry of the Australian-Antarctic discordance
26. Helium isotope geochemistry of mid-ocean ridge basalts from the South Atlantic
27. Hotspot-ridge interaction along the Southeast Indian Ridge near Amsterdam and St. Paul islands: Helium isotope evidence
28. Upper mantle dynamics revealed through spatial analysis of helium isotope variations along the southeast Indian Ridge
29. Large-scale regional units in the depleted upper mantle revealed by an isotope study of the south-west Indian ridge
30. Pb-Sr-Nd isotopic data of Indian Ocean Ridges: New evidence of large-scale mapping of mantle heterogeneities
31. Lead and helium isotope evidence from oceanic basalts for a common deep source of mantle plumes
32. Ultra-depleted hafnium isotopes from Australian-Antarctic discordance MORB
33. A large-scale isotope anomally in the Southern Hemisphere mantle
34. Rare earth abundances and Rb-Sr systematics of basalts, gabbro, anorthosite and minor granitic rocks from the Indian Ocean ridge system, western Indian ocean
35. Effect of shallow-level contamination on the helium isotope systematics of ocean-island lavas
36. Indian continental crust recovered from Elan Bank, Kerguelen Plateau ODP Leg 183, Site 1137
37. The O, Sr, Nd, and Pb isotope geochemistry of MORB
38. Boomerang Seamount: The active expression of the Amsterdam St. Paul hotspot, southeast Indian Ridge
39. Global correlations of ocean ridge basalt chemistry with axial depth and crustal thickness
40. Isotope evidence of a mantle convection boundary at the Australian Antarctic Discordance
41. Subduction zones, magmatism, and the breakup of Pangea
42. Geochemistry, mineralogy and petrogenesis of lavas erupted along the Southwest Indian Ridge between the Bouvet triple junction and 11°E
43. Tectonic history of aseismic ridges in the eastern Indian Ocean
44. Isotopic and geochemical provinces of the western Indian Ocean spreading centers
45. 34Pb mid-ocean ridge basalt: Isotope systematics of the central Southwest Indian Ridge 17° 50°E
46. Isotope and trace element characteristics of a super-fast spreading ridge: East Pacific Rise, 13 23°S
47. Geochemical characteristics of lavas from Broken Ridge, the Naturaliste Plateau and southernmost Kerguelen Plateau: Cretaceous plateau volcanism in the southeast Indian Ocean
48. Tracing the Indian Ocean mantle domain through time: Isotopic results from old west Indian, east Tethyan, and south Pacific seafloor
49. Mantle downwelling beneath the Australian Antarctic Discordance zone: Evidence from geoid height versus topography
50. Geochemistry of the mantle below the Rodriguez triple junction and the south-east Indian ridge
51. Mantle sources and the highly variable role of continental lithosphere in basalt petrogenesis of the Kerguelen Plateau and Broken Ridge LIP: Results from ODP Leg 183
52. 4He ratios in Kerguelen Archipelago basalts: New evidence for an undegassed mantle plume component abstract
53. Trace element evidence from seamounts for recycled oceanic crust in the Eastern Pacific mantle
54. Mantle source heterogeneity and melting processes beneath seafloor spreading centers: The East Pacific Rise, 18° 19°S
55. Helium isotope ratios in Easter Microplate basalts
56. Geochemistry of basalts from the Indian Ocean triple junction: Implications for the generation of Indian Ocean ridge basalts
57. Basement ages from the southern and central Kerguelen Plateau: Initial products of the Kerguelen large igneous province abstract
58. Resolving an isotopic boundary within the Australian Antarctic Discordance
59. Geochemistry and geochronology of ancient southeast Indian and southwest Pacific seafloor
60. Recycled oceanic crust and sediment in Indian Ocean MORB
61. Differential rotation between lithosphere and mantle: A consequence of lateral viscosity variations
62. Hf isotope constraints on mantle evolution
63. Trace element and isotopic characteristics of Kerguelen Heard plateau basalts
64. Chemical and isotopic constraints on the origin of basalts from Ninetyeast Ridge, Indian Ocean: Results from DSDP Legs 22 and 26 and ODP Leg 121
65. Anomalous seafloor spreading of the southeast Indian Ridge near the Amsterdam St. Paul Plateau
66. Upper mantle heterogeneities and dynamics
67. Dispersion of the Jan Mayen and Iceland mantle plumes in the Arctic: A He-Pb-Nd-Sr isotope tracer study of basalts from the Kolbeinsey, Mohns, and Knipovich ridges
68. The Southeast Indian Ridge between 88°E and 118°E: Variations in crustal accretion at constant spreading rate
69. Observations of ridge-hotspot interactions in the southern ocean
70. Imaging mid-ocean ridge transitions with satellite gravity
71. The planet beyond the plume hypothesis
72. Global sea floor topography from satellite altimetry and ship depth soundings
73. Geochemical evidence for plume-mantle interactions beneath Kerguelen and Heard islands, Indian Ocean
74. Contamination of Indian Ocean asthenosphere by the Kerguelen-Heard mantle plume
75. Age constraints on crustal recycling to the mantle beneath the southern Chile Ridge: He-Pb-Sr-Nd isotope systematics
76. Lead isotopic study of young volcanic rocks from mid-ocean ridges, ocean islands, and island arcs
77. 205Pb double spike for high-precision lead isotopic analyses
78. Helium, neon and argon isotope systematics in Kerguelen ultramafic xenoliths: Implications for mantle source signatures
79. Neodymium isotopic evidence for Galapágos hotspot-spreading centre system evolution
80. Chemical systematics of an intermediate spreading ridge: The Pacific-Antarctic Ridge between 56°S and 66°S
81. Role of the Kerguelen plume in generating the eastern Indian Ocean seafloor
82. Dupal anomaly in existence 115 Ma ago: Evidence from isotopic study of the Kerguelen Plateau (South Indian Ocean)
83. Kerguelen Archipelago revisited: Geochemical and isotopic study of the Southeast Province lavas
84. Geochemical characteristics of the youngest volcano (Mount Ross) in the Kerguelen Archipelago: Inferences for magma flux, lithosphere assimilation and composition of the Kerguelen plume
85. Trace of the Kerguelen mantle plume from seamounts between the Kerguelen Archipelago and Heard Island, Indian Ocean
86. Three-dimensional structure of asthenospheric flow beneath the Southeast Indian Ridge
87. 204Pb in MORB and open system evolution of the depleted mantle
88. Petrogenesis of the flood basalts forming the northern Kerguelen Archipelago: Implications for the Kerguelen plume
89. Evidence for a widespread Neo-Tethyan upper mantle with Indian-MORB-type isotopic signatures
90. Isotope and trace element geochemistry of young Pacific seamounts: Implications for the scale of upper mantle heterogeneity