Crustal structure of Ascension Island from wide-angle seismic data: Implications for the formation of near-ridge volcanic islands

Earth and Planetary Science Letters

Volumn 190, Issue 1-2, 2001, Pages 41-56

  Klingelhofer F ^a,f   Minshull, T A ^b   Blackman, D K ^c   Harben, P ^d   Childers, V ^e  

^a IFREMER   (France)

^b NATIONAL OCEANOGRAPHY CENTRE   (United Kingdom)

^c UNIVERSITY OF CALIFORNIA   (United States)

^d LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

^e NAVAL RESEARCH LABORATORY   (United States)

^f UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

Ascension Island; Atlantic Ocean; Crust; Flexure; Refraction methods; Volcanic centers

Indexed keywords

BATHYMETRIC SURVEY; CRUSTAL STRUCTURE; CRUSTAL THICKENING; SEISMIC SURVEY; TECTONIC SETTING; VOLCANIC ISLAND;

ATLANTIC OCEAN;

EID: 0034906689     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-821X(01)00362-4     Document Type: Article

References (55)

1. An analysis of isostasy in the world's oceans 1. The Hawaiian-Emperor seamount chain
2. A multichannel seismic study of lithospheric flexure across the Hawaiian-Emperor seamount chain
3. Elastic thickness of the lithosphere in the Marquesas and Society Islands
4. Lithospheric structure and compensation mechanisms of the Galapagos Archipelago
5. Crustal structure of the Tuamotu Plateau, 15 deg S, and implications for its origin
6. A seismic study of lithospheric flexure in the vicinity of Tenerife, Canary Islands
7. A two-dimensional seismic investigation of crustal structure under the Hawaiian Islands near Oahu and Kauai
8. Seismic imaging of hotspot-related crustal underplating beneath the Marquesas Islands
9. A shallow chemical origin for the Marquesas swell
10. Spatial distribution of hotspot material added into the lithosphere under La Réunion
11. Perturbation to the lithosphere along the hotspot track of La Réunion hotspot, from an offshore-onshore seismic transect
12. The Great Meteor seamount: Seismic structure of a submerged intraplate volcano
13. Jasper seamount structure: Seafloor seismic refraction tomography
14. The Geisha Guyots: Multi-beam bathymetry and morphometric interpretation
15. Temporal and spatial variability of seafloor spreading processes in the Northern South Atlantic
16. Geology of Ascension Island
17. Isotopic composition of lead and strontium in lavas and coarse-grained blocks from Ascension Island, South Atlantic
18. Oxford expedition to Ascension Island
19. Gravity anomalies and flexure of the lithosphere at Ascension Island
20. An analysis of the variation of ocean floor bathymetry and heat flow with age
21. Elastic layer thickening with age of the oceanic lithosphere: A tool for the prediction of the age of volcanoes or oceanic crust
22. Drilling and evaluation of Ascension 1, a geothermal exploration well on Ascension Island, South Atlantic Ocean
23. Hotspot tracks and the early rifting of the Atlantic
24. Ridge-plume interactions or mantle heterogeneity near Ascension Island
25. Pb isotope evidence in the South Atlantic for migrating, ridge-hotspot interactions
26. Fluxes and excess temperatures of mantle plumes inferred from their interaction with mid-ocean ridges
27. Helium isotope geochemistry of some volcanic rocks from Saint Helena
28. Hotspot-migrating ridge interaction in the South Atlantic
29. Tapping magmas from ubiqitous mantle heterogeneities: An alternative to mantle plumes?
30. Accurate modelling of sonobuoy refraction data to determine velocity variation in oceanic crust
31. Seismic travel time inversion for 2-D crustal velocity structure
32. Practical and efficient ray tracing in two-dimensional media for rapid travel time and amplitude forward modelling
33. Oceanic crustal thickness from seismic measurements and rare earth element inversions
34. Density of ocean crust
35. The rapid calculation of potential anomalies
36. Magmatism at rift zones; the generation of volcanic continental margins and flood basalts
37. Crustal and upper mantle seismic structure beneath the rift mountains and across a nontransform offset at the Mid-Atlantic Ride (35°N)
38. Petrological models of magma evolution and deep crustal structure beneath hotspots and flood basalt provinces
39. Geochemical characteristics of volcanic rocks from Ascension Island, South Atlantic Ocean
40. Seismic tomography of Jasper seamount
41. Observations of flexure and rheology of oceanic lithosphere
42. Lithospheric flexure and thermal anomalies
43. Variations in thickness of layer 3 dominate oceanic crustal structure
44. Looking for the 'missing end-member' in South Atlantic ocean mantle around Ascension Island
45. Ridge jumps and propagations in the South Atlantic Ocean
46. The Hawaiian-Emperor volcanic chain
47. Crustal structure, flexure, and subsidence history of the Hawaiian Islands
48. Volcanic and chemical evolution of the Canary Islands
49. Volcanic evolution of the island of Tenerife (Canary Islands) in the light of new K-Ar data
50. Non-hotspot formation of volcanic chains: Control of tectonic and flexural stresses on magma transport
51. A new version of the Generic Mapping Tool (GMT)
52. South Atlantic hot-spotplume systems: 1, Distribution of volcanism in time and space
53. Current plate motions
54. Global seafloor topography from satellite altimetry and ship depth soundings