Re-examining the stress field of the broader southern Aegean subduction area using an updated focal mechanism database


Δημοσιευμένα: Ιαν 24, 2013
Λέξεις-κλειδιά:
Ζώνη κατάδυσης Ν. Αιγαίου Πεδίο τάσεων Μηχανισμοί γένεσης
Ch. Kkallas
C.B. Papazachos
E.M. Scordilis
B.N. Margaris
Περίληψη
Χρησιμοποιήσαμε δεδομένα από το δίκτυο EGELADOS (Οκτώβριος 2005-Απρίλιος 2007) και υπολογίσαμε 88 νέους μηχανισμούς γένεσης στην περιοχή του Ν. Αιγαίου με τη χρήση του αλγορίθμου RAPIDINV algorithm (Cesca et al., 2010). Οι μηχανισμοί αυτοί, σε συνδυασμό με παλαιότερα στοιχεία χρησιμοποιήθηκαν για τον προσδιορισμό του ενεργού πεδίου τάσεων, όπως προτείνεται από την κατανομή των αξόνων P και T. Για τον προσδιορισμό αυτό χρησιμοποιήθηκε η μεθοδολογία των Gephart and Forsyth (1984) και ειδικότερα η μέθοδος αναζήτησης του Gephart (1990a,b), η οποία χρησιμοποιεί τους άξονες P και T των μηχανισμών γένεσης. Για την αντιστροφή, οι αρχικές λύσεις βασίστηκαν στη λύση των μέσων κινηματικών αξόνων P και T των Papazachos and Kiratzi (1992). Η διαδικασία αντιστροφής επιτρέπει τον καθορισμό των "ιδανικών" ρηγμάτων των μηχανισμών γένεσης, με βάση την προσαρμογή των παρατηρημένων και αναμενόμενων από το πεδίο τάσεων διανυσμάτων ολίσθησης τα οποία προκύπτουν με τη βοήθεια της μεθόδου αντιστροφής.
Λεπτομέρειες άρθρου
  • Ενότητα
  • Τεκτονική και Γεωδυναμική
Λήψεις
Τα δεδομένα λήψης δεν είναι ακόμη διαθέσιμα.
Αναφορές
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