Linear ridge groups: Evidence for tensional cracking in the Pacific Plate

Journal of Geophysical Research: Solid Earth

Volumn 104, Issue B12, 1999, Pages 29321-29333

  Lynch, Mary Ann ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BATHYMETRY; CRACKING; KINEMATICS; SEAFLOOR; TECTONICS; TENSION;

CROSSGRAIN RIDGE; PACIFIC OCEAN; PUKA PUKA RIDGE;

EID: 0033544974     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/1999jb900241     Document Type: Article

References (32)

1. Allen, G.G., Volcano ice interactions on Mars, J. Geophys. Res., 84,8048-8059, 1979.
2. Atkinson, B.K. (Ed.). Fracture. Mechanics of Rock, 534 pp., Academic, San Diego, Calif., 1987.
3. Caress, DAY. and D.N. Chayes, Status of hydrosweep data processing and display on the R/Y Maurice Ewing in M D System Manual. Lamont-Doherty Earth Observ., Palisades, N.Y., 1993.
4. Goodwillie, A.M., Short-wavelength gravit}- lincatioiis and unusual flexure results at the Puka Puka volcanic ridge system, Earth Planet. Sci. Lett., 136,297-314, 1995.
5. Gudmundsson, A., Stress estimates from the length/width ratios of fracture. J. Struct. Gcol, 5,G23-62G, 1983.
6. Haxby, W.F., and J.K. Weissel, Evidence for small scale mantle convection from Seasat altimeter data, J. Geophys. Res., 01,3507-3520, 1986.
7. Kleinrock, M.C., and R.N. Hey, Detailed tectonics near the tip of the Galapagos 95.5° W propagator: How the lithosphère tears and a spreading axis develops, J. Geophys. Res., 94,13,801-13,838, 1989.
8. Lawn, B.R., and T.R. Wilshaw, Fracture of Brittle Solids, 204 pp., Cambridge Univ. Press, New York, 1975.
9. Lynch. M.A., The Crossgrain Ridges: Linear ridge groups: Evidence for intraplate tension, unpub. Ph.D thesis, Univ. of Calif., San Diego, 1993.
10. Macdonald, K.C., Mid-ocean ridges: Fine scale tectonic, volcanic and hydrothermal processes within the plate boundary zone. Annu. Rev. Earth Planet. Sci.,10,155-190, 1982.
11. Macdougall, J.D, E.L. Winterer, D. Sandwell, M.A. Lynch, R.A. Duncan, and J.H. Natland, Tholeiitic and alkalic volcanism along extensional ridges on the western flank of thesuperfast East Pacific Rise, Eos Trans. AGI], 75(44), Fall Meet. Suppl., 582, 1994.
12. Normark, YV.R., R.T. Holcomb, R.C. Searle, M.L. Somers, and C.E. Gutmacher, Cruise report: Hawaiian Gloria legs 3 and 4, F3-88-HYV and F4-88-HW, U.S. Geol. Sun. Open File Rep., 89-213,58, 1989.
13. Oison, J.E., and D.D. Pollard, The initiation and growth of en-echelon veins, J. Struct. Geol, 13,595-608, 1991.
14. Opheim, J.A., and A. Gudmundsson, Formation and geometry of fractures, and related volcanism, of the Krafla fissure swarm, northeast Iceland, Geol. Soc. Am. Bull., 101,1608-1622, 1989.
15. Parson, L.M., et al., En echelon axial volcanic ridges at the Reykjanes Ridge: A life cycle of volcanism and tectonics, Earth Planet. Sci. Lett., 117,73-87, 1993.
16. Phipps Morgan, J., and M. Parmentier, Causes and ratelimiting mechanisms of ridge propagation: A fracture mechanics model, .7. Geophys. Res., 90,8603-8612, 1985.
17. Pollard, D.D., and A. Aydin, Propagation and linkage of oceanic ridge segments, J. Geophys. R., 89,10,01710,028, 1984.
18. Pollard, D.D., and A. Aydin, Progress in understanding jointing over the past century, Geol. Soc. Am. Bull., 100,1181-1204, 1988.
19. Pollard, D.D., P. Segall, and P.T. Delaney, Formation and interpretation of dilatant echelon cracks, Geol. Soc. Am. Bull., 93,1291-1303, 1982.
20. Sandwell, D.T., and J.A. Dunbar, Stretching of the central Pacific lithosphère: Super swell, Crossgrain lineations and en-echelon ridges, Eos Trans. AGU, 69(44), Fall Meet. Suppl., 1429, 1988.
21. Sandwell, D.T., E.L. Winterer, J. Mammerickx, R.A. Duncan, M.A. Lynch, D.A. Levitt, and C.L. Johnson, Evidence for diffuse extension of the Pacific plate from Pukapuka ridges and Cross-grain gravity lineations, J. Geophys. Res., 100,15,087-15,099, 1995.
22. Scheirer, D.S., K.C. Macdonald, D.W. Forsyth, and Y. Shen, Abundant seamounts of the Rano Rahi Seamount Field near the southern East Pacific Rise, 15°S to 19°S, Afar. Geophys. Res.,18,13-52, 1996.
23. Searle, R.C., J. Francheteau, and B. Cornaglia, New observations on mid-plate volcanism and the tectonic history of the Pacific plate, Tahiti to Easter microplate, Earth Planet. Sci. Lett., 131,395-421, 1995.
24. Shen, Y., D.W. Forsyth, D.S. Schcirer, and K.C. MacDonald, Two forms of volcanism: Implications for mantle flow and off-axis crustal production on the west flank of the southern East Pacific Rise, J. Geophys. Res., 98,17,875-17,889, 1993.
25. Solomon, R.C., R.M. Richardson, and E.A. Bergman, Tectonic stress, models and magnitudes, J. Geophys. Res., 85,G08C-C092, 1980.
26. Thorarinsson, S., The Lakagigar eruption of 1783, Bull. Volcanal., 33,910-992, 1969.
27. Turcotte, D.L., and E.R. Oxburgh, Mid-plate tectonics, Nature, 224,337-339, 1973.
28. Watts, A.B., J.K. Weissel, R.A. Duncan, and R.L. Larson, Origin of the Louisville Ridge and its relationship to the Eltanin Fracture Zone System, J. Geophys Res., 93,30513077, 1988.
29. Wessel, P., and W.H.F. Smith, Free software helps map and display data, Eos Trans. AGU, 75(41),441, 445-446, 1991.
30. Williams, H., and A.R. McBirney, Volcanology, 397 pp., Freeman, Cooper, San Francisco, Calif., 1979.
31. Winterer, E.L., Bathymetry and regional tectonic setting of the Line Islands chain, Initial Rep. Deep Sea Drill. Proj., 33,731-747, 1976.
32. Winterer, E.L., and D.T. Sandwell, Evidence from en-echelon Cross-grain ridges for tensional cracks in the Pacific plate, Nature, 329,534-535, 1987.