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Evidence of recent ruptures in the central faults of the Acambay Graben (central Mexico)

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F19%3A00517426" target="_blank" >RIV/67985891:_____/19:00517426 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/abs/pii/S0169555X1830271X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0169555X1830271X?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.geomorph.2018.07.010" target="_blank" >10.1016/j.geomorph.2018.07.010</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Evidence of recent ruptures in the central faults of the Acambay Graben (central Mexico)

  • Original language description

    The Acambay Graben, within the central part of the Trans-Mexican Volcanic Belt, is one of the major sources of continental earthquakes in Mexico. To date, the activity and paleoseismological history of the axial faults of the graben are not well constrained. We provide morphological, structural and sedimentological evidence of the seismogenic nature of two of the axial structures, the Temascalcingo and the Tepuxtepec fault systems. Faults consist of multiple parallel scarps with en echelon and horse-splay patterns. Fault systems extend for 60 km and displace Quaternary to Upper Miocene volcanic edifices and volcano-sedimentary materials. Surface lengths of individual fault traces range between 3 and 25 km, and observed throws reach a minimum of 150-200 m. The long-term and short-term slip rate of the Temascalcingo fault system in the studied section presents similar values, ranging from 0.06 +/- 0.02 (minimum long term) to 0.12 +/- 0.02 mm y(-1) (maximum value of average short-term). Only the long-term slip rate of the Tepuxtepec system could be constrained in 0.01-0.02 mm/y, being a minimum estimate. The Holocene fault rupture history at two sites provided evidence of six ruptures since 12,500-11,195 BCE, among which three ruptures should have occurred between 11,847 +/- 652 BCE and 11,425 +/- 465 BCE Variable single event displacements (SEDs, between 6 and 77) are interpreted as the result of fault interdependences and/or the interaction with the latest volcanic activity. Also, small displacements triggered by activity on other faults probably contributed to slip variability, i.e., faults display primary and secondary behavior.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10505 - Geology

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Geomorphology

  • ISSN

    0169-555X

  • e-ISSN

  • Volume of the periodical

    326

  • Issue of the periodical within the volume

    SI

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    21

  • Pages from-to

    17-37

  • UT code for WoS article

    000457811100003

  • EID of the result in the Scopus database