Steady and non-steady state magma chambers below the East Pacific Rise

Geophysical Research Letters

Volumn 23, Issue 3, 1996, Pages 221-224

  Batiza, Rodey ^a   Niu, Y ^b   Karsten, J L ^a   Boger, W ^a   Potts, E ^c   Norby, L ^a   Butler, R ^d  

^a UNIVERSITY OF HAWAII   (United States)

^b UNIVERSITY OF QUEENSLAND   (Australia)

^c 931 College Mall   (United States)

^d IRI   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

MAGMA CHAMBER; MAGMA CHAMBERS; MAGMA CHEMISTRY; MID OCEAN RIDGE; MID-OCEAN RIDGES; PETROLOGY; STEADY/NON-STEADY STATE; THERMAL HISTORY;

PACIFIC, EAST PACIFIC RISE;

FLOWLINES;

EAST PACIFIC RISE; MAGMA CHAMBER; NON STEADY-STATE; SAMPLE SETS; STEADY STATE; TEMPERATURE CHANGES; THERMAL HISTORY; TIME-SCALES;

VOLCANIC ROCKS;

EID: 0029730848     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/95GL00016     Document Type: Article

References (24)

1. Aumento, F., The Mid-Atlantic Ridge near 45°N, II. Basalts from the area of Confederation Peak, Can. J. Earth Sci., 5, 1-21, 1968.
2. Barth, G. A., K. A. Kastens, and E. M. Klein, The origin of bathymetric highs at ridge-transform intersections: A multi-disciplinary case study at the Clipperton Fracture Zone, Mar. Geophys. Res., 16, 1-50, 1994.
3. Batiza, R., and Y. Niu, Petrology and magma chamber processes at the East Pacific Rise ∼9°30'N, J. Geophys. Res., 97, 6779-6797, 1992.
4. Bender, J. F., F. N. Hodges, and A. E. Bence, Petrogenesis of basalts from the project FAMOUS area: experimental study from 0 to 15 kbars, Earth Planet. Sci. Lett., 41, 277-302, 1978.
5. Carbotte, S. and K. Macdonald, East Pacific Rise 8°-10°30'N: evolution of ridge segments and discontinuities from SeaMARC II and three-dimensional magnetic studies, J. Geophys. Res., 97, 6959-6982, 1992.
6. Detrick, R. S., P. Buhl, E. Vera, J. Mutter, J. Orcutt, J. Madsen, and T. Brocker, Multichannel seismic imaging of a crustal magma chamber along the East Pacific Rise, Nature, 236, 35-41, 1987.
7. 39Ar incremental heating method, Geophys. Res. Lett., 21, 1927-1930, 1994.
8. Flower, M. F. J., and P. T. Robinson, Evolution of the 'FAMOUS' ocean ridge segment: evidence from submarine and deep sea drilling investigations, in Deep-Drilling Results in the Atlantic Ocean: Ocean Crust, edited by M. Talwani, C. G. Harrison, and D. E. Hayes, American Geophysical Union, pp. 314-330, 1979.
9. Goldstein, S. J., M. R. Perfit, R. Batiza, D. J. Fomari, and M. T. Murrell, Off-axis volcanism at the East Pacific Rise based on U-series dating of basalts, Nature, 367, 157-159, 1994.
10. Goff, J. A., A global and regional stochastic analysis of near-ridge abyssal hill morphology, J. Geophys. Res., 96, 21,713-21,737, 1991.
11. Harding, A. J., G. A. Kent, and J. A. Orcutt, A multi-channel seismic Investigation of upper crustal structure at 9°N on the East Pacific Rise: Implications for crustal accretion, J. Geophys. Res., 98, 13,925-13,944, 1993.
12. Hekinian, R., Chemical and mineralogical differences between abyssal hill basalts and ridge tholeiites in the eastern Pacific Ocean, Mar. Geol., 11, 77-91, 1971.
13. Hekinian, R., G. Thompson, and D. Bideau, Axial and off-axial heterogeneity of basaltic rocks from the East Pacific Rise at 12°35'N-12°51'N and 11°26'N-11°30'N, J. Geophys. Res., 94, 17,437-17,464, 1989.
14. Karsten, J. L., J. R. Delaney, J. M. Rhodes, and R. A. Liias, Spatial and temporal evolution of magmatic systems beneath the Endeavour segment, Juan de Fuca Ridge: Tectonic and petrologic constraints, J. Geophys. Res., 95, 19,235-19,256, 1990.
15. Langmuir, C. H., J. F. Bender, and R. Batiza, Petrological and tectonic segmentation of the East Pacific Rise, 5°30'-14°30'N, Nature, 322, 422-429, 1986.
16. Langmuir, C. H., E. M. Klein, and T. Plank, Petrological systematics of mid-ocean ridge basalts: constraints on melt generation beneath ocean ridges, in Mantle flow and melt generation at Mid-Ocean Ridges, edited by J. Phipps Morgan, D. K. Blackman, and J. M. Sinton, AGU Monograph, 71, 183-280, 1992.
17. Macdonald, K. C., and P. J. Fox, The axial summit graben and cross-sectional shape of the East Pacific Rise as indicators of axial magma chambers and recent volcanic eruptions, Earth Planet. Sci. Lett., 88, 119-131, 1988.
18. Macdonald, K. C., S. P. Miller, B. P. Luyendyk, T. M. Atwater, and L. Shure, Investigation of a Vine-Matthews magnetic lineation with a submersible; The source character of marine magnetic anomalies, J. Geophys. Res., 88, 3403-3418, 1983.
19. Perfit, M. R., D. J. Fomari, M. C. Smith, J. F. Bender, C. H. Langmuir, R. M. Haymon, Small-scale spatial and temporal variations in mid-ocean ridge crest magmatic processes, Geology, 22, 375-379, 1994.
20. Perram, L. J., and K. Macdonald, A one-million year history of the 11°45'N East Pacific Rise discontinuity, J. Geophys. Res., 95, 21,363-21,381, 1990.
21. Reynolds, J. R., C. H. Langmuir, J. F. Bender, K. A. Kastens, and W. B. F. Ryan, Spatial and temporal variability in the geochemistry of basalts from the East Pacific Rise, Nature, 359, 493-499, 1992.
22. Scheirer, D. S. and K. C. Macdonald, Variations in cross-sectional area of the axial ridge along the East Pacific Rise: evidence for the magmatic budget of a fast-spreading center, J. Geophys. Res., 98, 7871-7885, 1993.
23. Sinton, J. M, and R. S. Detrick, Mid-ocean ridge magma chambers, J. Geophys. Res., 97, 197-216, 1992.
24. Thompson, G., W. B. Bryan, and S. E. Humphris, Axial volcanism on the East Pacific Rise, 10°-12°N, in Magmatism in the Ocean Basins, edited by A. D. Saunders and M. J. Norry, Geol. Soc. Spec. Publ. No. 42., 181-200, 1989.