Tectonic of the offshore Manzanillo and Tecpan basins, Mexican Pacific, from heat flow, bathymetric and seismic data
Main Article Content
Abstract
Separation of the Jalisco Block has been proposed to be the main results of oblique differential subduction of the Rivera and Cocos plates beneath North America and of the interaction between the four plates. Vector analysis of the subduction process of the Rivera and Cocos plates relative to North America results in a N11°E trending strike-slip fault boundary between the oceanic plates (at 4.2 cm/yr). most of the onshore structures are in the range of N30°-40°E and N60°-70°E, as in the Tecpan area (between Zihuatanejo and Acapulco). These results agree with the interoperation of detailed marine geophysical data collected by the R/V "Akademik Nikolai Strakhov" during February-March 1989 off Manzanillo and Tecpan. The data include seismic reflection profiles, swath bathymetric data, and 122 new direct heat flow data. Also 39 indirect heat flow values were estimated based on location of gas-hydratelayers in the Manzanillo continental slope from seismic records. In the Manzanillo Basin seismic profiling and swath bathymetric data indicate a recent uplift associated with strike-slip faulting. Heat flow ranges between 20-35 mW/m2. (average of 28±6 mW/m2) in the western Manzanillo Basin and 51±7 mW/m2 in the eastern basin. Both areas are bound by strike-slip faulting with a vertical component. The low heat flow is attributed to a portion of the coastal batholith that may have moved seaward along left-lateral faults in the Jalisco Block. The average heat flow value in the eastern portion is typical of the continental slope of the Middle American Trench; as measure off Tecpan, Guerrero, at an average of 55±8 mW/m2. High heat flow (>100 mW/m2) was found on the oceanic slope of the Middle American Trench. It is attributed to the younger age of the oceanic crust and/or to surface hydrothermal and local magmatic sources in the area of the El Gordo Graben.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
References
ALLAN, J. F., 1986. Geology of the northern Colima and Zacoalco grabens, southwest Mexico: Late Cenozoic rifting in the Mexican Volcanic Belt. Geol. Soc. of Am. Bull., 97, 473-485. DOI: https://doi.org/10.1130/0016-7606(1986)97<473:GOTNCA>2.0.CO;2
ATWATER, T., 1989. Plate tectonic history of the northeast Pacific and western North America, In: The Eastern Pacific Ocean and Hawaii. Edited by E. L. Winterer, D. M. Hussong and R. W. Decker. Geol. Soc. Am., The Geology of North America, V. N, 21-72. DOI: https://doi.org/10.1130/DNAG-GNA-N.21
ATWATER, T. and J. SEVERINGHAUS, 1989. Tectonic maps of the northeast Pacific, In: The Eastern Pacific Ocean and Hawaii. Edited by E. L. Winterer, D. M. Hussong and R. W. Decker. Geol. Soc. Am., The Geology of North America, 15-20. DOI: https://doi.org/10.1130/DNAG-GNA-N.15
BELLON, H., R. C. MAURY and J. F. STEPHAN, 1982. Dioritic basement, site 493: Petrology, geochemistry and geodynamics. Initial Rep. Deep Sea Drill. Proj., Leg 66, 723-730. DOI: https://doi.org/10.2973/dsdp.proc.66.135.1982
BOURGOIS, J., V. RENARD, J. AUBOUIN, W. BANDY, E. BARRIER, T. CALMUS, J. C. CARFANTAN, J. GUERRERO, J. MAMMERICKX, B. MERCIER de LEPINAY, F. MICHAUD and M., SOSSON, 1988. Fragmentation en cours du bord Ouest du continent Nord-Américain: Les frontières sousmarines du Bloc Jalisco (Mexique). C. R. Acad. Sci. Paris, t. 307, Serie 11, 1121-1130.
CARMICHAEL, I. S. E., 1993. Volcanism and tectonics of the Jalisco Block, Western Mexico. Geos, Unión Geofísica Mexicana, Boletín Informativo,13, 5, 24-25.
COURTNEY, R. C. and R. S. WHITE, 1986. Anomalous heat flow and geoid across the Cape Verde Rise: Evidence for dynamic support from a thermal plume in the mantle. Geophys. J. R. Astron. Soc., 87, 815-867. DOI: https://doi.org/10.1111/j.1365-246X.1986.tb01973.x
DELGADO-ARGOTE, L. A.,1986. Geology and economic study of ultramafic complexes of the coast of Guerrero, Mexico. M. S. Thesis, University of Arizona, 137 pp, 1986.
DELGADO-ARGOTE, L. A. y E. CARBALUDO-SANCHEZ, 1990. Análisis tectónico del sistema transpresivo neogénico entre Macuspana, Tabasco y Puerto Angel, Oaxaca. UNAM, Inst. Geología, Revista, 9, 21-32.
DELGADO-ARGOTE, L. A., M. LOPEZ-MARTINEZ, D. YORK, and C. M. HALL, 1992. Geologic framework and geochronology of ultramafic complexes of southern Mexico, the States of Mexico, Oaxaca and Guerrero. Can. Jour. Earth Sci. 29, 1590-1604. DOI: https://doi.org/10.1139/e92-125
DeMETS, C. and S. STEIN, 1990. Present-day kinematics of the Rivera Plate and implications for tectonics in southwestern Mexico. J. Geophys. Res., 95, 21, 931-21, 948. DOI: https://doi.org/10.1029/JB095iB13p21931
DETRICK, R. S., R. P. Von HERZEN, B. PARSON, D. SANDWELL and M. DOUGHERTY, 1986. Heat flow observations on the Bermuda Rise and thermal models of midplate swells. J. Geophys. Res., 91, 3701-3723. DOI: https://doi.org/10.1029/JB091iB03p03701
DRUMMOND, K. J., 1981. Plate tectonic map of the circum-Pacific region: Northeast quadrant. Am. Assoc. Pet. Geol., Tulsa Oklahoma.
EISSLER, H. K. and K. C. McNALLY, 1984. Seismicity and tectonics of the Rivera plate and implications for the 1932 Jalisco, Mexico, earthquake. J. Geophys. Res., 89, 4520-4530. DOI: https://doi.org/10.1029/JB089iB06p04520
FERRARI, L., G. PASQUARE, S. VENEGAS, D. CASTILLO and F. ROMERO, 1993. Evolución tectónica de la frontera norte del Bloque de Jalisco e implicaciones para su desplazamiento actual. Geos, Unión Geofísica Mexicana, Boletín Informativo, 13, 5 , 25-26.
GASTIL, G., D. KRUMMENACHER and W. A. JENSKY II, 1979. Reconnaissance geology of west-central Nayarit, Mexico. Geol. Soc. Am., Map and Chart series MC-24, scale 1:200 000. DOI: https://doi.org/10.1130/0016-7606(1979)90<15:RGOWNM>2.0.CO;2
HUTCHISON, I., 1985. The effects of sedimentation and compaction on oceanic heat flow. Geophys. J. R . Astron. Soc., 82, 439-459. DOI: https://doi.org/10.1111/j.1365-246X.1985.tb05145.x
INEGI, (Instituto Nacional de Estadística, Geografía e Informática), Carta Geológica 1: 1 ,000,000, Guadalajara, México, Secretaría de Programación y Presupuesto.
KARIG, D. E., R. K. CARDWELL, G. F. MOORE and D. G. MOORE, 1978. Late Cenozoic subduction and continental margin truncation along the northern Middle America Trench. Geol. Soc. Am. Bull., 89, 265-276. DOI: https://doi.org/10.1130/0016-7606(1978)89<265:LCSACM>2.0.CO;2
KHUTORSKOY, M. D., R. FERNANDEZ, V. I. KONONOV, B. G. POLYAK, V. G. MATVEEV and A. A. ROT, 1990. Heat flow through the sea bottom around the Yucatán peninsula. J. Geophys. Res., 95, 1223-1237. DOI: https://doi.org/10.1029/JB095iB02p01223
KLITGORD, K. D. and J. MAMMERICKX, 1982. North East Pacific Rise: Magnetic anomaly and bathymetric framework. J. Geophys. Res., 87, 6725-6750. DOI: https://doi.org/10.1029/JB087iB08p06725
LUHR, J. F., S. A. NELSON, J. F. ALLAN and I. S. E. CARMICHAEL, 1985. Active rifting in southwestern Mexico: Manifestations of an incipient eastward spreading-ridge jump. Geology, 13, 54-57. DOI: https://doi.org/10.1130/0091-7613(1985)13<54:ARISMM>2.0.CO;2
LUNDBERG, N. and J. C. MOORE, 1986. Macroscopic structural features in Deep Sea Drilling Project cores from forearc regions, In: Structural Fabrics in Deep Sea Drilling Project cores from forearcs, edited by J. C. Moore. Geol. Soc. Am., Memoir 166, p. 13-44. DOI: https://doi.org/10.1130/MEM166-p13
MOLNAR, P., 1973. Fault plane solutions of earthquakes an direction of motion in the Gulf of California and on the Rivera fracture zone. Geol. Soc. Am. Bull., 84, 1651-1658. DOI: https://doi.org/10.1130/0016-7606(1973)84<1651:FPSOEA>2.0.CO;2
MOORE, J. C. and N. LUNDBERG, 1986. Tectonic overview of Deep Sea Drilling Project transects of foreacs, In: Structural Fabrics in Deep Sea Drilling Project cores from forearcs, edited by J. C. Moore. Geol. Soc. Am., Memoir 166, p. 1-12. DOI: https://doi.org/10.1130/MEM166-p1
MORAN-ZENTENO, D. J., J. URRUTIA-FUCUGAUCHI and H. KÖHLER, 1990. Nuevos fechamientos de Rb-Sr en rocas cristalinas del Complejo Xolapa en el Estado de Guerrero. X Convención Geológica Nacional. Soc. Geol. Mex., Resúmenes, pp. 92-93.
NESS, G. E., O. SANCHEZ, R. W. COUCH and G. CALDERON, 1981. Tectonic interpretation of a recent geophysical survey of the southern Gulf and mouth of the Gulf of California, EOS. AGU fall meeting (abstract).
NIETO, J., L. DELGADO ARGOTE and P. E. DAMON, 1985. Geochronologic, petrologic and structural data related to large morphologic features between the Sierra Madre Occidental and the Mexican Volcanic Belt. Geofísica Internacional, 24, 623-663. DOI: https://doi.org/10.22201/igeof.00167169p.1985.24.4.2181
NIETO, J., J. URRUTIA-FUCUGAUCHI, E. CABRAL-CANO and A. GUZMAN, 1989. Evidence of a listric component in the Ameca River fault, implications of motion on the Jalisco block, Mexico. Geol. Soc. Am., Abst. with Programs, v. 21, A92.
NIXON, G. T., 1982. The relationship between Quaternary volcanism in central Mexico and the seismicity and structure of subducted ocean lithosphere. Geol. Soc. Am. Bull., 93, 514-523. DOI: https://doi.org/10.1130/0016-7606(1982)93<514:TRBQVI>2.0.CO;2
PANTOJA-ALOR, J., 1983. Geocronometría del magmatismo Cretácico-Terciario de la Sierra Madre del Sur, Bol. Soc. Geol. Mex.,XLIV-I, 1-20. DOI: https://doi.org/10.18268/BSGM1983v44n1a1
PANTOJA-ALOR, J. and S. ESTRADA-BARRAZA, 1986. Estratigrafía de los alrededores de la mina de fierro de El Encino, Jalisco. Bol. Soc. Geol. Mex., XLVII-I, 1-16. DOI: https://doi.org/10.18268/BSGM1986v47n1a1
POLYAK, B. G., V. I. KONONOV, E. M. PRASOLOV, I. V. SHARKOV, R. M. PROL-LEDESMA, A. GONZALEZ, A. RAZO and R. MOLINA-BERBELLER, 1985. First estimations of terrestrial heat flow in the TMVB and adjacent areas based on isotopic composition of natural helium. Geofísica Internacional, 24, 465-476. DOI: https://doi.org/10.22201/igeof.00167169p.1985.24.4.2177
POLYAK, B. G., I. N. TOLSTIKHIN and V. P. YAKUTSENI, 1979. The isotopic composition of helium and terrestial heat flow: geochemical and geophysical aspects of tectogenesis, (in Russian). Geotectonics, 13, 339-351.
PROL-LEDESMA, R. M., V. M. SUGROBOV, E. L. FLORES, G. JUAREZ, Ya. B. SMIRNOV, A. P. GORSHKOV, V. G. BONDARENKOV, V. A. RASHIDOV, L. N. NEDOPEKIN and V. A. GAVRILOV, 1989. Heat flow along the Middle American Trench. Mar. Geophys. Res., 11, 69-76. DOI: https://doi.org/10.1007/BF00286248
ROSS, D. A., 1971. Sediments of the northern Middle American Trench. Geol. Soc. Am. Bull., 82, 303-322. DOI: https://doi.org/10.1130/0016-7606(1971)82[303:SOTNMA]2.0.CO;2
SERPA, L., S. SMITH, C. KATZ, Ch. SKIDMORE, R. SLOAN and T. PAVLIS, 1992. A geophysical investigation of the Southern Jalisco Block in the State of Colima, Mexico. Geofísica Internacional, 3I, 4, 475-492. DOI: https://doi.org/10.22201/igeof.00167169p.1992.31.4.1369
SLOAN, R. F., 1989. A geologic and tectonic study of the Southern Colima Graben, Colima, Mexico. M.S. Thesis, University of New Orleans.
SMITH, S. A., 1990. A geologic reconnaissance study of a Middle Cretaceous marine volcanic arc: the strati-graphic evolution and subsequent strike-slip fragmentation of the Colima Basin. M. S. Thesis, University of New Orleans.
SMITH, D. L., C. E. NUCKLES, R. L. JONES, and G. A. COOK, 1979. Distribution of heat flow and radioactive heat generation in Northern Mexico. J. Geophys. Res., 84, 2371-2379. DOI: https://doi.org/10.1029/JB084iB05p02371
SUGROBOV, V. M., Ya. B. SMIRNOV, A. P., R. M. PROL-LEDESMA, V. G. BONDARENKOV, V. A. RASHIDOV, L. N. NEDOPEKIN and V. A. GAVRILOV, 1989. New heat flow data in the area of the Middle-Pacific trench, (in Russian). Doklady Akad. Nauk. USSR, 305, 179-183.
VACQUIER, V., J. G. SCLATER and C. E. CORRY, 1967. Studies of the thermal state of the Earth, 21-st paper, Heat flow, Eastern Pacific: Tokyo. Bull. Earth. Res. Inst., 45, 375-393.
VON HERZEN, R. P. and R. N. ANDERSON, 1972. Implication of heat flow and bottom water temperature in the eastern equatorial Pacific. Geophys. J. R. Astron. Soc., 26, 427-458. DOI: https://doi.org/10.1111/j.1365-246X.1972.tb05762.x
YAMANO, M., S. UYEDA, Y. AOKI and T. H. SHIPLEY, 1982. Estimates of heat flow derived from gas hydrates. Geology, 10, 339-343. DOI: https://doi.org/10.1130/0091-7613(1982)10<339:EOHFDF>2.0.CO;2
YAMANO, M. and S. UYEDA, 1988. In: The ocean basins and margins, edited by A. E. M. Nairn, F. G. Stehli and S. Uyeda, Plenum Press N. Y., 523-557.
ZIAGOS, J. P., D. D. BLACKWELL and F. MOOSER, 1985. Heat flow in southern Mexico and the thermal effects of subduction. J. Geophys. Res., 90, 5410-5420. DOI: https://doi.org/10.1029/JB090iB07p05410