Microzonation of the Linares, northeast Mexico area, based on geology and shear-wave velocity measurements

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Authors:Montalvo-Arrieta, J. C.; Quintanilla, Y.; Tamez, A.; Meneses, M.; Ramos, L.; Masuch, D.
Author Affiliations:Primary:
Universidad Autonoma de Nuevo Leon, Facultad de Ciencias de la Tierra, Linares, Mexico
Volume Title:Geofísica Internacional
Source:Geofísica Internacional, 44(4), p.331-340. Publisher: Instituto de Geofísica, UNAM, Mexico, D.F., Mexico. ISSN: 0016-7169
Publication Date:2005
Note:In English with Spanish summary. 19 refs.; illus., incl. 3 tables, sketch maps
Summary:We determined the velocity structure of S-wave (Vs), P-wave (Vp) and the average shear velocity to 30 meters depth (V̈s30) at 30 locations in the Linares. Nuevo Leon area. Vs and Vp measurements were made from seismic refraction profiles. Four different lithologic units were defined in the upper 30 m: silts with 338 m/s and 221 m/s for Vp and Vs respectively, which correspond to the lowest velocities measured in the area; Quaternary deposits with 957 m/s and 559 m/s for Vp and Vs; Tertiary conglomerates with 2471 m/s and 1220 m/s for Vp and Vs; and shales of the Upper Cretaceous Mendez Formation with 3195 m/s and 2149 m/s for Vp and Vs. Sites of class C (V̈s30<760 m/s) are dominant in the area, corresponding to maximum thicknesses of less than 16 m of soft sediments.
Sections:Physical properties of rocks and minerals
Subjects:Arrival time; Body waves; Boreholes; Cenozoic; Clastic rocks; Clastic sediments; Coastal plains; Cretaceous; Elastic waves; Geophysical methods; Geophysical profiles; Geophysical surveys; Mathematical methods; Mendez Formation; Mesozoic; Microzonation; P-waves; Quaternary; Refraction methods; S-waves; Sedimentary rocks; Sediments; Seismic methods; Seismic profiles; Seismic waves; Seismic zoning; Seismicity; Surveys; Tertiary; Upper Cretaceous; Velocity; Mexico; Nuevo Leon Mexico; Linares Mexico
Coordinates:N244500 N252000 W0993000 W1000000
Abstract Numbers:06M/996
Record ID:2006040624
Copyright Information:GeoRef, Copyright 2020 American Geosciences Institute.
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