The oceanic crust in 3D: Paleomagnetic reconstruction in the Troodos ophiolite gabbro

Earth and Planetary Science Letters

Volumn 251, Issue 3-4, 2006, Pages 280-292

  Granot, Roi ^a   Abelson, Meir ^b   Ron, Hagai ^a   Agnon, Amotz ^a  

^a HEBREW UNIVERSITY OF JERUSALEM   (Israel)

^b GEOLOGICAL SURVEY OF ISRAEL   (Israel)

Author keywords

gabbro; lower crust; mid ocean ridge; ophiolite; paleomagnetism; Troodos

Indexed keywords

GABBRO; MID-OCEAN RIDGE; OCEANIC CRUST; OPHIOLITE; PALEOMAGNETISM;

BRITTLE FRACTURE; DEFORMATION; GEOMAGNETISM; VOLCANIC ROCKS;

STRUCTURAL GEOLOGY;

BRITTLE DEFORMATION; GABBRO; MID-OCEAN RIDGE; OCEANIC CRUST; OPHIOLITE; PALEOMAGNETISM; TRANSFORM FAULT; UPPER CRUST;

ASIA; CYPRUS; EURASIA; MIDDLE EAST; TROODOS OPHIOLITE;

SOLEA;

EID: 33750508750     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2006.09.019     Document Type: Article

References (46)

1. Macdonald K.C., and Luyendyk B.P. Investigation of faulting and abyssal hill formation on the flanks of the East Pacific Rise (21-Degrees-N) using Alvin. Mar. Geophys. Res. 7 (1985) 515-535
2. Varga R.J., Karson J.A., and Gee J.S. Paleomagnetic constraints on deformation models for uppermost oceanic crust exposed at the Hess Deep Rift: implications for axial processes at the East Pacific Rise. J. Geophys. Res. 109 (2004) 10.1029/2003JB002486
3. Sonder L.J., and Pockalny R.A. Anomalously rotated abyssal hills along active transforms: distributed deformation of oceanic lithosphere. Geology 27 (1999) 1003-1006
4. Kriner K.A., Pockalny R.A., and Larson R.L. Bathymetric gradients of lineated abyssal hills: inferring seafloor spreading vectors and a new model for hills formed at ultra-fast rates. Earth Planet. Sci. Lett. 242 (2006) 98-110
5. Allerton S., and Tivey M.A. Magnetic polarity structure of the lower oceanic crust. Geophys. Res. Lett. 28 (2001) 423-426
6. P.B. Kelemen, E. Kikawa, D.J. Miller, et al., Shipboard Scientific Party, Leg 209 summary (2004) 1-139.
7. Karson J.A., and Lawrence R.M. Tectonic window into gabbroic rocks of the middle oceanic crust in the MARK area near sites 921-924. Proc. Ocean Drill. Program Sci. Results 153 (1997) 61-76
8. Dick H.J.B., Schouten H., Mayer P.S., Gallo D.G., Bergh H., Tyce R., Patriat P., Johnson K.T.M., Snow J., and Fisher A.T. Tectonic evolution of the Atlantis II fracture zone. Proc. Ocean Drill. Program Sci. Results 118 (1991) 359-398
9. Varga R.J., and Moores E.M. Spreading structure of the Troodos ophiolite, Cyprus. Geology 13 (1985) 846-850
10. Moores E.M., and Vine F.J. Troodos Massif, Cyprus and other ophiolites as oceanic crust - evaluation and implications. Philos. Trans. R. Soc. London Ser. 268A (1971) 443-466
11. Mukasa S.B., and Ludden J.N. Uranium-lead isotopic ages of plagiogranites from the Troodos ophiolite, Cyprus, and Their Tectonic Significance. Geology 15 (1987) 825-828
12. Harland W.B., Armstrong R.L., Cox A.V., Craig L.E., Smith A.G., and Smith D.G. Geological Time Scale (1990), Cambridge University Press, Cambridge
13. Pearce J.A. Basalt geochemistry used to investigate past tectonic environments on Cyprus. Tectonophysics 25 (1975) 41-67
14. Hurst S.D., Moores E.M., and Varga R.J. Structural and geophysical expression of the Solea graben, Troodos ophiolite, Cyprus. Tectonics 13 (1994) 139-156
15. Robertson A., and Xenophontos C. Development of concepts concerning the Troodos ophiolite and adjacent units in Cyprus. In: Prichard H.M., Alabaster T., Harris N.B.W., and Neary C.R. (Eds). Magmatic Processes and Plate Tectonics. Geol. Soc. Spec. Publ. vol. 76 (1993) 85-119
16. Macleod C.J., Robertson A.H.F., Allerton S., Browning P., Gass I.G., Taylor R.N., Vine F.J., and Xenophontos C. Tectonic evolution of the Troodos ophiolite within the Tethyan framework - comment. Tectonics 11 (1992) 910-915
17. Simonian K.O., and Gass I.G. Arakapas fault belt, Cyprus - fossil transform fault. Geol. Soc. Am. Bull. 89 (1978) 1220-1230
18. Macleod C.J., and Murton B.J. On the sense of slip of the Southern Troodos transform-fault zone, Cyprus. Geology 23 (1995) 257-260
19. Morris A., Creer K.M., and Robertson A.H.F. Paleomagnetic evidence for clockwise rotations related to dextral shear along the southern Troodos transform-fault, Cyprus. Earth Planet. Sci. Lett. 99 (1990) 250-262
20. Macleod C.J., Allerton S., Gass I.G., and Xenophontos C. Structure of a fossil ridge-transform intersection in the Troodos ophiolite. Nature 348 (1990) 717-720
21. Allerton S., and Vine F.J. Deformation styles adjacent to transform faults: evidence from the Troodos ophiolite, Cyprus. In: Parson L.M., Murton B.J., and Browning P. (Eds). Ophiolites and their modern oceanic analogues. Geol. Soc. Spec. Publ. vol. 60 (1992) 251-261
22. Bonhommet N., Roperch P., and Calza F. Paleomagnetic arguments for block rotations along the Arakapas Fault (Cyprus). Geology 16 (1988) 422-425
23. Allerton S. Distortions, rotations and crustal thinning at ridge transform intersections. Nature 340 (1989) 626-628
24. Agar S.M., and Klitgord K.D. A mechanism for decoupling within the oceanic lithosphere revealed in the Troodos ophiolite. Nature 374 (1995) 232-238
25. Abelson M., Baer G., and Agnon A. Fossil ridge-transform intersection in the Troodos ophiolite: new perspectives from rock magnetism in the gabbro suite and fracture mechanics analysis. Geochem. Geophys. Geosyst. 3 (2002) 10.1029/2001GC000245
26. Clube T.M.M., and Robertson A.H.F. The paleorotation of the Troodos microplate, Cyprus, in the late Mesozoic-early Cenozoic Plate tectonic framework of the Eastern Mediterranean. Surv. Geophys. 8 (1986) 375-437
27. Hurst S.D., Verosub K.L., and Moores E.M. Paleomagnetic constraints on the formation of the Solea graben, Troodos ophiolite, Cyprus. Tectonophysics 208 (1992) 431-445
28. Varga R.J., Gee J.S., Staudigel H., and Tauxe L. Dike surface lineations as magma flow indicators within the sheeted dike complex of the Troodos ophiolite, Cyprus. J. Geophys. Res. 103 (1998) 5241-5256
29. Clube T.M.M., Creer K.M., and Robertson A.H.F. Paleorotation of the Troodos microplate, Cyprus. Nature 317 (1985) 522-525
30. Abelson M., Baer G., and Agnon A. Evidence from gabbro of the Troodos ophiolite for lateral magma transport along a slow-spreading mid-ocean ridge. Nature 409 (2001) 72-75
31. Yaouancq G., and MacLeod C.J. Petrofabric investigation of gabbros from the Oman Ophiolite: comparison between AMS and rock fabric. Mar. Geophys. Res. 21 (2000) 289-305
32. Rao D.G., and Krishna K.S. Magnetic rock properties of the gabbros from the ODP Drill Hole 1105A of the Atlantis Bank, Southwest Indian Ridge. Proc. Indian Academy Sci. 111 (2002) 467-481
33. Pariso J.E., Kelso P.R., and Richter C. Paleomagnetism and rock magnetic properties of gabbro from Hole 894G, Hess Deep. Proc. Ocean Drill. Program Sci. Results 147 (1996) 373-381
34. Gee J.S., and Meurer W.P. Slow cooling of middle and lower oceanic crust inferred from multicomponent magnetizations of gabbroic rocks from the Mid-Atlantic Ridge south of the Kane fracture zone (MARK) area. J. Geophys. Res. 107 (2002) 10.1029/2000JB000062
35. Malpas J. Crustal accretionary processes in the Troodos ophiolite, Cyprus: evidence from field mapping and deep crustal drilling. In: Malpas J., Moores E.M., Panayiotou A., and Xenophontos C. (Eds). Troodos 1987 on Ophiolites and Oceanic Analogues. Geol. Surv. Dept. (1990), Ministry of Agriculture and Natural Resources of Cyprus, Nicosia 65-74
36. Kirschvink J.L. The least-squares line and plane and the analysis of paleomagnetic data. Geophys. J. Roy. Astr. Soc. 62 (1980) 699-718
37. Fisher R.A. Dispersion on a sphere. Proc. Roy. Soc. Lond. 217 (1953) 295-305
38. Abercrombie R.E., and Ekstrom G. Earthquake slip on oceanic transform faults. Nature 410 (2001) 74-77
39. Watts A.B., and Zhong S. Observations of flexure and the rheology of oceanic lithosphere. Geophys. J. Int. 142 (2000) 855-875
40. Tucholke B.E., and Lin J. A geological model for the structure of ridge segments in slow-spreading ocean crust. J. Geophys. Res. 99 (1994) 11937-11958
41. Solomon S.C., and Toomey D.R. The structure of midocean ridges. Ann. Rev. Earth Planet. Sci. 20 (1992) 329-364
42. Small C. Global systematics of mid-ocean ridge morphology. In: Buck R.W., Delaney P.T., Karson J.A., and Lagabrielle Y. (Eds). Faulting and Magmatism at Mid-Ocean Ridges (1998), American Geophys. Union, Washington DC 1-26
43. Wessel P., and Smith W.H.F. New version of the generic mapping tools released. EOS Trans. AGU 76 (1995) 329
44. Mineral Resources Map of Cyprus, Geol. Surv. Dep., Cyprus, Nicosia, 1982.
45. Macdonald K.C., Fox P.J., Miller S., Carbotte S., Edwards M.H., Eisen M., Fornari D.J., Perram L., Pockalny R., Scheirer D., Tighe S., Weil C., and Wilson D. The East Pacific Rise and its flanks 8-18-degrees N - history of segmentation, propagation and spreading direction based on Seamarc-Ii and sea beam studies. Mar. Geophys. Res. 14 (1992) 299-344
46. Jones C.H. User-driven integrated software lives: "Paleomag" paleomagnetics analysis on the Macintosh. Comp. Geos. 28 (2002) 1145-1151