Joint orientations in Central Mexico
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Abstract
Joint orientations were measured in Central Mexico, in a region reaching from the Paso de Cortes to Acapulco. It was found that the preferred joint orientations were very consistent: if the joints are interpreted as shearing planes, they would correspond to a maximum compression direction oriented horizontally with an azimuth of N 34° E. This conesponds exactly to the relative motion direction of the Cocos Plate against Middle America.
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References
DEAN, B. W., C. L. DRAKE, 1978. Focal mechanism solutions and tectonics of the Middle America Arc. J. Geol. 86 : 111-128. DOI: https://doi.org/10.1086/649659
KOHLBECK, F., A. E. SCHEIDEGGER, 1977. On the theory of joint orientation measurements. Rock Mech. 9 : 9-25. DOI: https://doi.org/10.1007/BF01238567
MOLNAR, P., L. R. SYKES, 1969. Tectonics of the Caribbean and Middle America regions. Bull. Geol. Amer. 80 : 1639-1684. DOI: https://doi.org/10.1130/0016-7606(1969)80[1639:TOTCAM]2.0.CO;2