{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1069"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1069","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΕΙΣΜΙΚΗ ΤΟΜΟΓΡΑΦΙΑ \"ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΖΩΝΩΝ ΤΑΧΥΤΗΤΑΣ ΣΤΟΝ ΕΥΡΥΤΕΡΟ ΕΛΛΗΝΙΚΟ ΧΩΡΟ\"","abstract":"3-DIMENSIONAL VELOCITY STRUCTURE BENEATH GREECE AND SURRONDING REGIONS IS DETERMINED USING THE METHOD PROPOSED BY AKI AND LEE. THE DATA USED ARE ARRIVAL TIMESOF P-WAVES FROM 166 EARTHQUAKES WHICH OCCURRED SINCE 1972 TO 1986 AND RECORDEDAT 62 STATIONS IN THE AREA INCLUDED BETWEEN 33.0 N - 43.0 N AND 18.0 E - 30.6 E. THE EARTH'S CRUST AND UPPER MANTLE BENEATH THE INVESTIGATED REGION IS DIVIDED INTO 10X10 RECTANGULAR BLOCKS OF 1 SIZE. FOUR LAYERS OF 40KM THICKNESS WERE USED. BY INVERSION OF THE DATA, THREE MAIN VELOCITY ZONES WERE DETERMINED. I) A HIGH VELOCITY ZONE AT THE MARGIN OF EUROPEAN PLATE. II) A HIGH VELOCITY ZONE WHICH COINCIDE WITH THE AFRICAN ILAH AND III) A LOW VELOCITY ZONE AT AEGEAN SEA, WHERE LARGE SCALE EXTENSION AND VOLCANIC ACTIVITY ARE PREDOMINANT.","abstract_html":"3-DIMENSIONAL VELOCITY STRUCTURE BENEATH GREECE AND SURRONDING REGIONS IS DETERMINED USING THE METHOD PROPOSED BY AKI AND LEE. THE DATA USED ARE ARRIVAL TIMESOF P-WAVES FROM 166 EARTHQUAKES WHICH OCCURRED SINCE 1972 TO 1986 AND RECORDEDAT 62 STATIONS IN THE AREA INCLUDED BETWEEN 33.0 N - 43.0 N AND 18.0 E - 30.6 E. THE EARTH'S CRUST AND UPPER MANTLE BENEATH THE INVESTIGATED REGION IS DIVIDED INTO 10X10 RECTANGULAR BLOCKS OF 1 SIZE. FOUR LAYERS OF 40KM THICKNESS WERE USED. BY INVERSION OF THE DATA, THREE MAIN VELOCITY ZONES WERE DETERMINED. I) A HIGH VELOCITY ZONE AT THE MARGIN OF EUROPEAN PLATE. II) A HIGH VELOCITY ZONE WHICH COINCIDE WITH THE AFRICAN ILAH AND III) A LOW VELOCITY ZONE AT AEGEAN SEA, WHERE LARGE SCALE EXTENSION AND VOLCANIC ACTIVITY ARE PREDOMINANT.","abstract_has_math":false,"creators":["Δρακάτος, Γεώργιος","Drakatos, George"],"institution":"Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1989,"date_issued":"1989","date_published":"1989","updated_at":"2026-07-24T02:24:43Z","subjects":["3-D structure","CRUSTAL STRUCTURE","Eastern Mediterranean","INVERSION OF TRAVEL TIMES","Tomography","Ανατολική Μεσόγειος","ΔΟΜΗ ΦΛΟΙΟΥ-ΜΑΝΔΥΑ","ΜΕΘΟΔΟΣ ΑΝΤΙΣΤΡΟΦΗΣ","Τομογραφία","ΤΡΙΣΔΙΑΣΤΑΤΟ ΜΟΝΤΕΛΟ ΤΑΧΥΤΗΤΩΝ","Φυσικές Επιστήμες","Natural Sciences","Γεωεπιστήμες και Επιστήμες Περιβάλλοντος","Earth and Related Environmental Sciences"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1069"],"render_values":[{"text":"10.12681/eadd/1069","href":"https://doi.org/10.12681/eadd/1069","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1069","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Δρακάτος, Γεώργιος","Drakatos, George"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1989"]},{"key":"dc:publisher","label":"Institution","values":["Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)","National and Kapodistrian University of Athens"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["3-D structure","CRUSTAL STRUCTURE","Eastern Mediterranean","INVERSION OF TRAVEL TIMES","Tomography","Ανατολική Μεσόγειος","ΔΟΜΗ ΦΛΟΙΟΥ-ΜΑΝΔΥΑ","ΜΕΘΟΔΟΣ ΑΝΤΙΣΤΡΟΦΗΣ","Τομογραφία","ΤΡΙΣΔΙΑΣΤΑΤΟ ΜΟΝΤΕΛΟ ΤΑΧΥΤΗΤΩΝ","Φυσικές Επιστήμες","Natural Sciences","Γεωεπιστήμες και Επιστήμες Περιβάλλοντος","Earth and Related Environmental Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1069","http://hdl.handle.net/10442/hedi/1069"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["3-DIMENSIONAL VELOCITY STRUCTURE BENEATH GREECE AND SURRONDING REGIONS IS DETERMINED USING THE METHOD PROPOSED BY AKI AND LEE. THE DATA USED ARE ARRIVAL TIMESOF P-WAVES FROM 166 EARTHQUAKES WHICH OCCURRED SINCE 1972 TO 1986 AND RECORDEDAT 62 STATIONS IN THE AREA INCLUDED BETWEEN 33.0 N - 43.0 N AND 18.0 E - 30.6 E. THE EARTH'S CRUST AND UPPER MANTLE BENEATH THE INVESTIGATED REGION IS DIVIDED INTO 10X10 RECTANGULAR BLOCKS OF 1 SIZE. FOUR LAYERS OF 40KM THICKNESS WERE USED. BY INVERSION OF THE DATA, THREE MAIN VELOCITY ZONES WERE DETERMINED. I) A HIGH VELOCITY ZONE AT THE MARGIN OF EUROPEAN PLATE. II) A HIGH VELOCITY ZONE WHICH COINCIDE WITH THE AFRICAN ILAH AND III) A LOW VELOCITY ZONE AT AEGEAN SEA, WHERE LARGE SCALE EXTENSION AND VOLCANIC ACTIVITY ARE PREDOMINANT.","ΜΕ ΤΗ ΜΕΘΟΔΟ ΤΗΣ ΣΕΙΣΜΙΚΗΣ ΤΟΜΟΓΡΑΦΙΑΣ ΕΓΙΝΕ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΖΩΝΩΝ ΤΑΧΥΤΗΤΑΣ ΣΤΟ ΦΛΟΙΟ ΚΑΙ ΤΟΝ ΚΑΤΩΤΕΡΟ ΜΑΝΔΥΑ ΤΟΥ ΕΥΡΥΤΕΡΟΥ ΕΛΛΗΝΙΚΟΥ ΧΩΡΟΥ. ΓΙΑ ΔΕΔΟΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΑΝ ΤΑ ΧΡΟΝΙΚΑ ΥΠΟΛΟΙΠΑ ΤΩΝ ΧΡΟΝΩΝ ΔΙΑΔΡΟΜΗΣ 166 ΣΕΙΣΜΩΝ ΠΟΥ ΕΓΙΝΑΝ ΣΤΗΝ ΠΕΡΙΟΧΗ ΠΟΥ ΠΕΡΙΛΑΜΒΑΝΕΤΑΙ ΜΕΤΑΞΥ 33.0 Β - 43.0 Β ΚΑΙ 18.0 Α-30.6 Α ΚΑΙ ΑΝΕΓΡΑΦΗΣΑΝ ΣΕ 62 ΣΕΙΣΜΟΛΟΓΙΚΟΥΣ ΣΤΑΘΜΟΥΣ. ΤΟ ΕΞΕΤΑΖΟΜΕΝΟ ΤΜΗΜΑ ΤΟΥ ΦΛΟΙΟΥ ΚΑΙ ΤΟΥ ΜΑΝΔΥΑ ΧΩΡΙΣΘΗΚΕ ΣΕ 4 ΣΤΡΩΜΑΤΑ ΠΑΧΟΥΣ 40ΚΜ ΤΟ ΚΑΘΕ ΕΝΑ. ΚΑΘΕ ΣΤΡΩΜΑ ΔΙΑΙΡΕΘΗΚΕ ΣΕ 10Χ10 ΤΕΜΑΧΗ ΔΙΑΣΤΑΣΕΩΝ 1 ΠΕΡΙΠΟΥ ΣΥΜΦΩΝΑ ΜΕ ΤΟ ΜΟΝΤΕΛΟ ΤΩΝ ΑΚΙ AND LEE. ΜΕ ΑΝΤΙΣΤΡΟΦΗ ΤΩΝ ΔΕΔΟΜΕΝΩΝ ΠΡΟΣΔΙΟΡΙΣΤΗΚΑΝ ΤΡΕΙΣ ΜΕΓΑΛΕΣ ΖΩΝΕΣ ΤΑΧΥΤΗΤΑΣ . ΜΙΑ ΖΩΝΗ ΥΨΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΣΤΟ ΠΕΡΙΘΩΡΙΟ ΤΗΣ ΕΥΡΑΣΙΑΤΙΚΗΣ ΠΛΑΚΑΣ, ΜΙΑ ΖΩΝΗ ΧΑΜΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΣΤΗΝ ΠΕΡΙΟΧΗ ΤΟΥ ΑΙΓΑΙΟΥ ΚΑΙ ΜΙΑ ΖΩΝΗ ΥΨΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΠΟΥ ΣΥΜΠΙΠΤΕΙ ΜΕ ΤΗ ΒΥΘΙΖΟΜΕΝΗ ΑΦΡΙΚΑΝΙΚΗ ΠΛΑΚΑ."]},{"key":"dc:title","label":"Title","values":["ΣΕΙΣΜΙΚΗ ΤΟΜΟΓΡΑΦΙΑ \"ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΖΩΝΩΝ ΤΑΧΥΤΗΤΑΣ ΣΤΟΝ ΕΥΡΥΤΕΡΟ ΕΛΛΗΝΙΚΟ ΧΩΡΟ\"","SEISMIC TOMOGRAPHY: DETERMINATION OF HIGH AND LOW VELOCITY ZONES BENEATH GREECEAND SURROUNDING REGIONS"]}]}],"canonical_facts":{"dc:creator":["Δρακάτος, Γεώργιος","Drakatos, George"],"dc:date":["1989"],"dc:description":["3-DIMENSIONAL VELOCITY STRUCTURE BENEATH GREECE AND SURRONDING REGIONS IS DETERMINED USING THE METHOD PROPOSED BY AKI AND LEE. THE DATA USED ARE ARRIVAL TIMESOF P-WAVES FROM 166 EARTHQUAKES WHICH OCCURRED SINCE 1972 TO 1986 AND RECORDEDAT 62 STATIONS IN THE AREA INCLUDED BETWEEN 33.0 N - 43.0 N AND 18.0 E - 30.6 E. THE EARTH'S CRUST AND UPPER MANTLE BENEATH THE INVESTIGATED REGION IS DIVIDED INTO 10X10 RECTANGULAR BLOCKS OF 1 SIZE. FOUR LAYERS OF 40KM THICKNESS WERE USED. BY INVERSION OF THE DATA, THREE MAIN VELOCITY ZONES WERE DETERMINED. I) A HIGH VELOCITY ZONE AT THE MARGIN OF EUROPEAN PLATE. II) A HIGH VELOCITY ZONE WHICH COINCIDE WITH THE AFRICAN ILAH AND III) A LOW VELOCITY ZONE AT AEGEAN SEA, WHERE LARGE SCALE EXTENSION AND VOLCANIC ACTIVITY ARE PREDOMINANT.","ΜΕ ΤΗ ΜΕΘΟΔΟ ΤΗΣ ΣΕΙΣΜΙΚΗΣ ΤΟΜΟΓΡΑΦΙΑΣ ΕΓΙΝΕ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΖΩΝΩΝ ΤΑΧΥΤΗΤΑΣ ΣΤΟ ΦΛΟΙΟ ΚΑΙ ΤΟΝ ΚΑΤΩΤΕΡΟ ΜΑΝΔΥΑ ΤΟΥ ΕΥΡΥΤΕΡΟΥ ΕΛΛΗΝΙΚΟΥ ΧΩΡΟΥ. ΓΙΑ ΔΕΔΟΜΕΝΑ ΧΡΗΣΙΜΟΠΟΙΗΘΗΚΑΝ ΤΑ ΧΡΟΝΙΚΑ ΥΠΟΛΟΙΠΑ ΤΩΝ ΧΡΟΝΩΝ ΔΙΑΔΡΟΜΗΣ 166 ΣΕΙΣΜΩΝ ΠΟΥ ΕΓΙΝΑΝ ΣΤΗΝ ΠΕΡΙΟΧΗ ΠΟΥ ΠΕΡΙΛΑΜΒΑΝΕΤΑΙ ΜΕΤΑΞΥ 33.0 Β - 43.0 Β ΚΑΙ 18.0 Α-30.6 Α ΚΑΙ ΑΝΕΓΡΑΦΗΣΑΝ ΣΕ 62 ΣΕΙΣΜΟΛΟΓΙΚΟΥΣ ΣΤΑΘΜΟΥΣ. ΤΟ ΕΞΕΤΑΖΟΜΕΝΟ ΤΜΗΜΑ ΤΟΥ ΦΛΟΙΟΥ ΚΑΙ ΤΟΥ ΜΑΝΔΥΑ ΧΩΡΙΣΘΗΚΕ ΣΕ 4 ΣΤΡΩΜΑΤΑ ΠΑΧΟΥΣ 40ΚΜ ΤΟ ΚΑΘΕ ΕΝΑ. ΚΑΘΕ ΣΤΡΩΜΑ ΔΙΑΙΡΕΘΗΚΕ ΣΕ 10Χ10 ΤΕΜΑΧΗ ΔΙΑΣΤΑΣΕΩΝ 1 ΠΕΡΙΠΟΥ ΣΥΜΦΩΝΑ ΜΕ ΤΟ ΜΟΝΤΕΛΟ ΤΩΝ ΑΚΙ AND LEE. ΜΕ ΑΝΤΙΣΤΡΟΦΗ ΤΩΝ ΔΕΔΟΜΕΝΩΝ ΠΡΟΣΔΙΟΡΙΣΤΗΚΑΝ ΤΡΕΙΣ ΜΕΓΑΛΕΣ ΖΩΝΕΣ ΤΑΧΥΤΗΤΑΣ . ΜΙΑ ΖΩΝΗ ΥΨΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΣΤΟ ΠΕΡΙΘΩΡΙΟ ΤΗΣ ΕΥΡΑΣΙΑΤΙΚΗΣ ΠΛΑΚΑΣ, ΜΙΑ ΖΩΝΗ ΧΑΜΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΣΤΗΝ ΠΕΡΙΟΧΗ ΤΟΥ ΑΙΓΑΙΟΥ ΚΑΙ ΜΙΑ ΖΩΝΗ ΥΨΗΛΩΝ ΤΑΧΥΤΗΤΩΝ ΠΟΥ ΣΥΜΠΙΠΤΕΙ ΜΕ ΤΗ ΒΥΘΙΖΟΜΕΝΗ ΑΦΡΙΚΑΝΙΚΗ ΠΛΑΚΑ."],"dc:identifier":["10.12681/eadd/1069","http://hdl.handle.net/10442/hedi/1069"],"dc:language":["gre"],"dc:publisher":["Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)","National and Kapodistrian University of Athens"],"dc:subject":["3-D structure","CRUSTAL STRUCTURE","Eastern Mediterranean","INVERSION OF TRAVEL TIMES","Tomography","Ανατολική Μεσόγειος","ΔΟΜΗ ΦΛΟΙΟΥ-ΜΑΝΔΥΑ","ΜΕΘΟΔΟΣ ΑΝΤΙΣΤΡΟΦΗΣ","Τομογραφία","ΤΡΙΣΔΙΑΣΤΑΤΟ ΜΟΝΤΕΛΟ ΤΑΧΥΤΗΤΩΝ","Φυσικές Επιστήμες","Natural Sciences","Γεωεπιστήμες και Επιστήμες Περιβάλλοντος","Earth and Related Environmental Sciences"],"dc:title":["ΣΕΙΣΜΙΚΗ ΤΟΜΟΓΡΑΦΙΑ \"ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΖΩΝΩΝ ΤΑΧΥΤΗΤΑΣ ΣΤΟΝ ΕΥΡΥΤΕΡΟ ΕΛΛΗΝΙΚΟ ΧΩΡΟ\"","SEISMIC TOMOGRAPHY: DETERMINATION OF HIGH AND LOW VELOCITY ZONES BENEATH GREECEAND SURROUNDING REGIONS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:43Z"}