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Gravity and magnetic constraints on the crustal structure and evolution of the Horeki seamount in the Izu-Ogasawara (Bonin) arc

Earth, Planets and Space volume 61, pages 333–343 (2009)Cite this article

Abstract

Data on the crustal structure, bulk composition, and eruption ages of an arc seamount were obtained in an investigation aimed at studying the spatial and temporal variations in the magma composition of an intra-oceanic arc. We conducted gravity and magnetic surveys of the Horeki seamount and evaluated the density and magnetization structure using inversion and forward modeling. The seamount is located on the back-arc side of the Izu-Ogasawara arc. This seamount has an elliptical shape, a flat summit, and satellite ridges and cones on its northern and southern flanks. The flanks are consistent with a higher density anomaly, with an estimated mean density corresponding to dense basaltic rocks. A low-density anomaly is distributed in the seamount top, indicating that the top likely consists of porous basalts or differentiated rocks. The prominent circular low Bouguer gravity anomaly, which appeared in the northern part of the flat-topped summit, indicates that a light-density material fills the summit. The main body of seamount is normally magnetized. Combined with the age of the rocks, the volcanism constructing the main body may be most robust in the Gauss chron. The deeper part of seamount may consist of intrusive rocks, with induced magnetization over remanence. The eastern part of the northern ridges is reversely magnetized, while the western part is normally magnetized. These features and the ages of the sampled rocks suggest that these ridges were constructed in the Matuyama and Brunhes chrons, respectively. The southern part of the seamount flanks shows weak normal magnetization, probably caused by the small cones with different polarities of remanent magnetization.

References

  • Bhattacharyya, B. K., Magnetic anomalies due to prism-shaped bodies with arbitrary polarization, Geophysics, 29, 517–531, 1964.

    Article  Google Scholar 

  • Blakely, R. J., Potential Theory in Gravity & Magnetic Applications, 441 pp., Cambridge University Press, New York, 1996.

    Google Scholar 

  • Cande, S. C. and D. V. Kent, Revised calibration of the geomagnetic polarity time scale for the Late Cretaceous and Cenozoic, J. Geophys. Res., 100, 6093–6095, 1995.

    Article  Google Scholar 

  • Fujiwara, T., Gravity anomaly of the Izu-Bonin Island Arc, Eos Trans. AGU, 85(28), West. Pac. Geophys. Meet. Suppl., Abstract V33C-01, 2004.

  • Fujiwara, T., Y. Kido, Y. Tamura, and O. Ishizuka, Gravity and magnetic constraints on the crustal structure and evolution of the Horeki seamount in the Izu-Bonin arc, JAMSTEC Rep. Res. Dev., 4, 55–65, 2006.

    Google Scholar 

  • International Association of Geodesy (IAG), Geodetic Reference System 1967, Bureau Central de A. I. G. Spec. Pub. 3, 1967.

    Google Scholar 

  • International Association of Geomagnetism and Aeronomy (IAGA), Division V,Working Group 8, The 9th generation International Geomagnetic Reference Field, Earth Planets Space, 55, i–ii, 2003.

    Article  Google Scholar 

  • Ishizuka, O., K. Uto, M. Yuasa, and A. G. Hochstaedter, Volcanism in the earliest stage of back-arc rifting in the Izu-Bonin arc revealed by laser-heating 40Ar/39Ar dating, J. Volcanol. Geotherm. Res., 120, 71–85, 2002.

    Article  Google Scholar 

  • Ishizuka, O., R. N. Taylor, J. A. Milton, and R. W. Nesbitt, Fluid-mantle interaction in an intra-oceanic arc: constraints from high-precision Pb isotopes, Earth Planet. Sci. Lett., 211, 221–236, 2003a.

    Article  Google Scholar 

  • Ishizuka, O., K. Uto, and M. Yuasa, Volcanic history of the back-arc region of the Izu-Bonin (Ogasawara) Arc, in Intra-Oceanic Subduction Systems: Tectonic and Magmatic Processes, edited by R. D. Larter and P. H. Leat, Geol. Soc. Spec. Publ., 219, 187–205, 2003b.

    Google Scholar 

  • Ishizuka, O., R. N. Taylor, J. A. Milton, R. W. Nesbitt, M. Yuasa, and I. Sakamoto, Variation in the source mantle of the northern Izu arc with time and space—Constraints from high-precision Pb isotopes—, J. Volcanol. Geotherm. Res., 156, 266–290, 2006.

    Article  Google Scholar 

  • Ishizuka, O., R. N. Taylor, J. A. Milton, R. W. Nesbitt, M. Yuasa, and I. Sakamoto, Processes controlling along-arc isotopic variation of the southern Izu-Bonin arc, Geochem. Geophys. Geosyst., Q06008, 10.1029/2006GC001475, 2007.

    Google Scholar 

  • Kaiho, Y., N. Takahashi, T. Sato, G. Fujie, S. Kodaira, and Y. Kaneda, Wide-angle seismic profiling of oceanic island arc in the southern Izu- Ogasawara arc—KY0502 cruise—, JAMSTEC Rep. Res. Dev., 3, 43–52, 2006.

    Google Scholar 

  • Kido, Y., Geophysical features of the north Izu-Ogasawara region, Chikyu Monthly, 52, 104–112, 2005 (in Japanese).

    Google Scholar 

  • Kodaira, S., T. Sato, N. Takahashi, A. Ito, Y. Tamura, Y. Tatsumi, and Y. Kaneda, Seismological evidence for variable growth of crust along the Izu intraoceanic arc, J. Geophys. Res., 112, doi: 10.1029/2006JB004593, 2007a.

  • Kodaira, S., T. Sato, N. Takahashi, S. Miura, Y. Tamura, Y. Tatsumi, and Y. Kaneda, New seismological constraints on growth of continental crust in the Izu-Bonin intra-oceanic arc, Geology, 35, 1031–1034, 2007b.

    Article  Google Scholar 

  • Koyama, M., S. M. Cisowski, and P. Pezard, Fujioka, K. et al., Proc. ODP, Sci. Results, 126, College Station, TX (Ocean Drilling Program), 353–370, 1

    Google Scholar 

  • Kuo, B. Y. and D. W. Forsyth, Gravity anomalies of the ridge-transform system in the South Atlantic between 31° and 34.5°S: Upwelling centers and variations in crustal thickness, Mar. Geophys. Res., 10, 205–232, 1988.

    Article  Google Scholar 

  • Lin, J., G. M. Purdy, H. Schouten, J.-C. Sempéré, and C. Zervas, Evidence from gravity data for focused magmatic accretion along the Mid- Atlantic Ridge, Nature, 344, 627–632, 1

    Article  Google Scholar 

  • Ludwig, W. J., J. E. Nafe, and C. L. Drake, Seismic refraction, in The Sea, 4, edited by A. E. Maxwell, 53–84, Wiley-Interscience, New York

    Google Scholar 

  • Miura, S., T. Sato, T. No, N. Takahashi, S. Kodaira, and Y. Kaneda, Wideangle seismic experiment crossing the Sofu-gan tectonic line in the Izu- Ogasawara arc—KY0502 cruise—, JAMSTEC Rep. Res. Dev., 3, 19–29, 2006.

    Google Scholar 

  • Murakami, F. and T. Ishihara, Submarine caldera discovered in the northern Izu-Bonin arc, Chikyu Monthly, 7, 638–646, 1985 (in Japanese).

    Google Scholar 

  • Nishizawa, A., K. Kaneda, A. Nakanishi, N. Takahashi, and S. Kodaira, Crustal structure of the ocean-island arc transition at the mid Izu- Ogasawara (Bonin) arc margin, Earth Planets Space, 58, e33–e36, 2006.

    Article  Google Scholar 

  • Park, J.-O., T. Tsuru, Y. Kido, M. K. Thu, S. Kodaira, and Y. Kaneda, Multichannel seismic reflection image across the Izu-Bonin island arc system—preliminary results—, Fall meeting, Seismo. Soc. Japan, P071, 222, 2002.

    Google Scholar 

  • Press, W. H., S. A. Teukolsky, W. T. Vetterling, and B. P. Flannery, Numerical Recipes: The Art of Scientific Computing, Cambridge University Press, New York, 963 pp., 1992.

    Google Scholar 

  • Prince, R. A. and D. W. Forsyth, Horizontal extent of anomalously thin crust near the Vema Fracture Zone from the three-dimensional analysis of gravity anomalies, J. Geophys. Res., 93, 8,051–8,063, 1988.

    Article  Google Scholar 

  • Sandwell, D. T. and W. H. F. Smith, Marine gravity anomaly from Geosat and ERS 1 satellite altimetry, J. Geophys. Res., 102, 10,039–10,054, 1997.

    Article  Google Scholar 

  • Shipboard Scientific Party, Site 1256, In Wilson, D. S., Teagle, D. A. H., Acton, G. D., et al., Proc. ODP, Init. Repts., 206: College Station, TX (Ocean Drilling Program), 1–396, 10.2973/odp.proc.ir.206.103.2003, 2003.

  • Shukuno, H., Y. Tamura, K. Tani, Q. Chang, T. Suzuki, and R. S. Fiske, Origin of silicic magmas and the compositional gap at Sumisu submarine caldera, Izu-Bonin arc, Japan, J. Volcanol. Geotherm. Res., 156, 187–216, 2006.

    Article  Google Scholar 

  • Takahashi, N., S. Kodaira, T. Sato, A. Ito, T. No, and Y. Kaneda, Wideangle seismic profiling of arc-arc collision zone in the northern Izu- Ogasawara arc—KY0408 cruise—, JAMSTEC Rep. Res. Dev., 1, 23–36, 2005.

    Google Scholar 

  • Tamura, Y., K. Tani, O. Ishizuka, Q. Chang, H. Shukuno, and R. S. Fiske, Are arc basalts dry, wet, or both? Evidence from the Sumisu caldera volcano, Izu-Bonin arc, Japan, J. Petrol., 46, 1769–1803, 2005.

    Article  Google Scholar 

  • Tamura, Y., O. Ishizuka, H. Shukuno, H. Kawabata, K. Tani, T. Fujiwara, Y. Kido, and R. S. Fiske, Horeki backarc volcano of the Izu-Bonin arc, Japan Geoscience Union Meeting, J161-035, 2006.

    Google Scholar 

  • Tamura, Y., K. Tani, Q. Chang, H. Shukuno, H. Kawabata, O. Ishizuka, and R. S. Fiske, Wet and dry basalt magma evolution at Torishima volcano, Izu-Bonin arc, Japan: the possible role of phengite in the downgoing slab, J. Petrol., 48, 1999–2031, 2007.

    Article  Google Scholar 

  • Tani, K., R. S. Fiske, Y. Tamura, Y. Kido, J. Naka, H. Shukuno, and R. Takeuchi, Sumisu volcano, Izu-Bonin arc, Japan: site of a silicic calderaforming eruption from a small open-ocean island, Bull. Volcanol., 70, 547–562, 2008.

    Article  Google Scholar 

  • Tatsumi, Y., The subduction factory: how it operates in the evolving Earth, GSA Today, 15, 4–10, 2005.

    Article  Google Scholar 

  • Tsuru, T., J.-O. Park, T. No, K. Takizawa, and Y. Kaneda, Cruise report of 2004 seismic reflection surveys in Izu-Ogasawara Arc, JAMSTEC Rep. Res. Dev., 2, 1–12, 2005.

    Google Scholar 

  • Ueda, Y., Magnetic and gravity field analyses of Izu-Ogasawara (Bonin) Arc and their tectonic implications, J. Geomag. Geoelectr., 48, 421–445, 1996.

    Article  Google Scholar 

  • Ueda, Y., Magnetizations of the seamounts in the Izu-Ogasawara arc with special reference to the origin of their normal polarity biases, Earth Planets Space, 59, 897–909, 2007.

    Article  Google Scholar 

  • Wessel, P. and W. H. F. Smith, New version of Generic Mapping Tools released, EOS Trans. AGU, 76, 329, 1995.

    Article  Google Scholar 

  • Yamazaki, T. and M. Yuasa, Possible Miocene rifting of the Izu-Ogasawara (Bonin) arc deduced from magnetic anomalies, Island Arc, 7, 374–382, 1998.

    Article  Google Scholar 

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Authors and Affiliations

  1. Institute for Research on Earth Evolution (IFREE), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, 237-0061, Japan

    Toshiya Fujiwara & Yoshihiko Tamura

  2. Center for Deep Earth Exploration (CDEX), JAMSTEC, Yokohama, 236-0001, Japan

    Yukari Kido

  3. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan

    Osamu Ishizuka

Authors
  1. Toshiya Fujiwara
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  2. Yukari Kido
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  3. Yoshihiko Tamura
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  4. Osamu Ishizuka
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Correspondence to Toshiya Fujiwara.

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Fujiwara, T., Kido, Y., Tamura, Y. et al. Gravity and magnetic constraints on the crustal structure and evolution of the Horeki seamount in the Izu-Ogasawara (Bonin) arc. Earth Planet Sp 61, 333–343 (2009). https://doi.org/10.1186/BF03352915

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