REVIEW AND NEW DATA ON UPLIFT RATES AT THE W TERMINATION OF THE CORINTH RIFT AND THE NE RION GRABEN AREA (ACHAIA, NW PELOPONNESOS)


Δημοσιευμένα: Ιουν 8, 2007
Λέξεις-κλειδιά:
Μορφοτεκτονική διαφορική ανύψωση ακτών ρυθμοί παραμόρφωσης ενεργά κανονικά ρήγματα Κορινθιακός Κόλπος
N. Palyvos
D. Sorel
F. Lemeille
M. Mancini
D. Pantosti
R. Julia
M. Triantaphyllou
P. M. De Martini
Περίληψη

Στην εργασία αυτή γίνεται επισκόπηση υπαρχόντων και παρουσίαση νέων γεωχρονολογικών δεδομένων για τις ανυψωμένες μέσο-άνω πλειστοκαινικές θαλάσσιες αποθέσεις στο δυτικό άκρο του Κορινθιακού κόλπου και την περιοχή Ρίου-Ψαθοπύργου. Γεωμορφολογικές και γεωλογικές παρατήσεις καθορίζουν το γενικό μορφοτεκτονικό πλαίσιο, το οποίο υποδηλώνει διαφορική ανύψωση με συγκεκριμένα γενικά χαρακτηριστικά. Οι ρυθμοί ανύψωσης που προκύπτουν από προϋπάρχοντα γεωχρονολογικά δεδομένα από διάφορες θέσεις (κυμαινόμενοι από 0.4 έως 6 mm/yr), συζητώνται στα πλαίσια του ευρύτερου μορφοτεκτονικού σκηνικού, μαζί με εκείνους από τα νέα δεδομένα. Με βάση χρονολογήσεις θαλάσσιων αποθέσεων νεότερων του ισοτοπικού σταδίου 11, οι μέσοι ρυθμοί ανύψωσης κατά τα τελευταία 300-200 ka είναι μεγαλύτεροι των 1.8 mm/yr στις ταχύτερα ανυψούμενες περιοχές (π.χ. Προφήτης Ηλίας, Άνω Καστρίτσι). Για να προσδιορισθεί το πόσο ακριβώς μεγαλύτεροι είναι ή για την επιβεβαίωση πολύ υψηλών ρυθμών ανύψωσης (> 4 mm/yr) που απαντούν στη βιβλιογραφία, απαιτούνται περισσότερα δεδομένα από τα υπάρχοντα.

Λεπτομέρειες άρθρου
  • Ενότητα
  • Tectonic- Dynamic- Applied Geology
Λήψεις
Τα δεδομένα λήψης δεν είναι ακόμη διαθέσιμα.
Αναφορές
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