Abstract
We present sedimentological and structural data and conceptual models for the evolution of two types of diapiric mud moundss offshore Costa Rica. Dozens of exposed mud mounds are found in the smooth domain of the margin with Mound Culebra being the most prominent example. Mound Culebra is a fault controlled feature with steep flanks (∼10–20°) and a lack of recent mud flows. The extruded material consists of overcompacted silty clay with signs of intense brittle deformation, brecciation, hydrofracturing and secondary perforation by closely spaced conduits. The southern rough domain is characterized by numerous local tectonic regimes linked to seamount subduction and the collision of the Cocos ridge all associated with diverse forms of venting. Diapirism seems to play only a minor role and Mound 11 and 12 are examples of fault controlled, low relief mud volcanoes with shallow-dipping flanks. Mud flow sequences, vent debris and the presence of gas hydrates in the shallow subsurface favor an episodic, gas driven eruption behavior.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Azizi, F., 1999. Applied Analyses in Geotechnics, E & FN Spon, London, New York, 1999.
Bohrmann, G., Heeschen, K., Jung, C., Weinrebe, Baranov, W.B., Cailleau, B., Heath, R., Hühnerbach, V., Hort, M., Masson, D., and Trummer, I., 2002. Widespread fluid expulsion along the seafloor of the Costa Rica convergent margin, Terra Nova, 14, 69–79.
Brown, K.M., 1990. The Nature and Hydrogeologic Significance of Mud Diapirs and Diatremes for Accretionary Systems, J. Geophys. Res., 96, 8969–8982.
Cita, M.B., Camerlenghi, A., Erba, E., F.M. McCoy, F.M., Castradory, D., Cazzani, A., Guasti, G., Gianbastiani, M., Lucci, R., Nolli, V., Pezzi, G., Redaelli, M., Rizzi, E., Torricelli, S. and Violanti, D., 1989. Discovery of mud diapirism on the Mediterranean Ridge. A preliminary report, Boll. Soc. Geol. It., 108, 537–543.
DeMets, C., Gordon, R.G., Argus, D.F., and Stein, S., 1994. Effect of recent revision to the geomagnetic reversal timescale on estimates of current plate motions, Geophys. Res. Lett., 21, 2191–2194.
Grevemeyer, I., Kopf, A. J., Kaul, N., Fekete, N., Villinger, H., Heesemann, M., Gennerich, M. Müller, H.-H., Wallmann, K., and Weinrebe, W., 2004. Fluid flow through active mud dome Mound Culebra offshore Nicoya Peninsula, Costa Rica: evidence from heat flow surveying, Mar Geol., 207, 145–157.
Henry, P., Le Pichon, X., Lallemant, S., Lance, S., Martin, J.B., Foucher, J.P., Fiala-Médioni, A., Rostek, F., Guilhaumou, N., Pranal, V., and Castrec, M., 1996. Fluid flow in and around a mud volcano field seaward of the Barbados accretionary wedge: Results from Manon cruise, J. Geophys. Res., 101, 20,297–20,323.
Mau, S., Sahling, H., Rehder, G., Soeding, E., Masson, D., and Suess, E. Seafloor observations and methane plumes of mud extrusions along the erosive convergent margin of Costa Rica, Mar. Geol., in prep.
Meschede, M., Zweigel, P., Frisch, W., and Völker, D., 1999. Mélange formation by subduction erosion: the case of the Osa mélange in southern Costa Rica, Terra Nova, 11, 141–148.
Murton, B.J. and Biggs, J., 2003. Numerical modelling of mud volcanoes and their flows using constraints from the Gulf of Cadiz, Mar Geol., 195, 223–236.
Pecher, I.A., Kukowski, N., Huebscher, C., Greinert, J., Bialas, J., and GEOPEG Working Group, 2001. The link between bottom-simulating reflections and methane flux into the gas hydrate stability zone — new evidence from Lima Basin, Peru Margin, Earth Planetary Sci. Lett., 185, 343–354.
Reed, D.L., Silver, E.A, Tagudin, J.E., Shipley, T.H., and Vrolijk, P., 1990. Relations between mud volcanoes, thrust deformation, slope sedimentation, and gas hydrate, offshore north Panama, Mar. Petrol. Geol., 7, 44–54.
Shipley, T.H., McIntosh, K.D., Silver, E.A., and Stoffa, R.L., 1992. Three-Dimensional Seismic Imaging of the Costa Rica Accretionary Prism: Structural Diversity in a Small Volume of the Lower Slope, J. Geophys. Res., 97, 4439–4459.
Schmidt, M., Hensen, C., Mörz, T., Müller, C., Grevemeyer, I., Kaul, N., Wallmann, K., Mau, S., and Brückmann, W. Shallow surface methane hydrate accumulation related to mud volcanism at „Mound 11“ (Costa Rica forearc), Earth Planetary Sci. Lett., submitted.
Soeding, E., Wallmann, K., Suess, E., and Flueh, E., 2003. RV METEOR, Cruise Report M54/2+3. Fluids and Subduction, Costa Rica 2002, in GEOMAR Rep., 111, GEOMAR, Kiel.
Vannucchi, P., Ranero, C.R., Galeotti, S., Straub, S.M., Scholl, D.W., and McDougall-Ried, K., 2003. Fast rates of subduction erosion along the Costa Rica Pacific margin: Implications for non-steady rates of crustal recycling at subduction zones, J. Geophys. Res., 108, n. B11, 2511.
Von Huene, R., Ranero, C.R., Weinrebe, W., and Hinz, K., 2000. Quaternary convergent margin tectonics of Costa Rica, segmentation of the Cocos Plate, and Central American volcanism, Tectonics, 19, 314–334.
Weinrebe, W., and Flueh, E., 2002. FS/RV SONNE, Cruise Report SO163. Subduction 1, Costa Rica 2002, in GEOMAR Rep., 106, GEOMAR, Kiel.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2005 Springer
About this paper
Cite this paper
Moerz, T. et al. (2005). Styles and Productivity of Mud Diapirism along the Middle American Margin. In: Martinelli, G., Panahi, B. (eds) Mud Volcanoes, Geodynamics and Seismicity. NATO Science Series, vol 51. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3204-8_5
Download citation
DOI: https://doi.org/10.1007/1-4020-3204-8_5
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-3202-8
Online ISBN: 978-1-4020-3204-2
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)