PREVIOUS AND ONGOING STUDIES ON THE GEOLOGY AND ACTIVE FAULTS OF THE

IZMIR REGION

By MTA

Ömer Emre

General Directorate of Mineral Research and Exploration

(MTA)

MTA DATA BASE

A-Collected data in the last 10 years

Geological maps

*Digitized basic geological maps in scale of 1:25 000; 1:100 000; except for L18 sheet (available in Geological Data Base)

* Quaternary geological and geomorphological maps of the Gediz delta and Gediz graben (Hakyemez et al, 1993,1999; unpublished original maps in 1:25 000 scale)

* Land-use capability of the İzmir metropolitan area

(MTA report / unpublished)

Geohazard studies

* Digitized landslide inventory maps in scale of 1:25 000 ;1:500 000 (in press/1 500 000 Scale)

* Active fault map of the İzmir region in radius of 50 km and fault characterization (MTA report)

* Investigation of source fault of the 2005 Seferihisar earthquakes (MTA report)

ONGOING AND NEAR FUTURE PROJECTS

*Revision of Active Fault Map of Turkey, SW Anatolia (2007)

*Cave/karst paleoseismology along the Manisa fault (2006-2007)

*Investigation of submarine active faults in the İzmir and Sığacık bays/High Resolution Seismic Profilling ((2007-2008)

*Geological mapping in scale of 1:25 000 of L18 İzmir Sheet (2007-2008)

Status of the geological mapping in the İzmir region

Digitized Geological map of İzmir region (Geological Data Base)

Geological map of Karaburun peninsula (Çakmakoğlu ve Bilgin 2005)

Original Scale/1:25 000-Geological Data Base

Map of the Holocene sedimentary fill in the Gediz graben and İzmir bay (Hakyemez et al.1999)

Distribution pattern of the Holocene facies of the Gediz delta (Hakyemez et al., 1993)

Original maps are in scale of 1:25 000

Quaternary geology and geomorphological mapping

Landslide inventory map of Turkey (ongoing project in Geology Dept. of MTA)

Landslide mapping

Basic maps:1:25 000Duman et al 2004

ONGOING AND NEAR FUTURE PROJECTS

*Revision of Active Fault Map of Turkey, SW Anatolia (2007)

*Cave/karst paleoseismology along the Manisa fault (2006-2007)

*Investigation of submarine active faults in the İzmir and Sığacık bays/High Resolution Seismic Profilling ((2007-2008)

*Geological mapping in scale of 1:25 000 of L18 İzmir Sheet (2007-2008)

Geological mapping of L18 sheet (2007-2008)

Investigation of offshore active faults in İzmir and Siğacık bays (2007-2008

SUMMARY OF ACTIVE FAULT INVESTIGATIONS

Revised Active Fault Map of NW Anatolia

Neotectonic provinces of West Anatolia

Active fault map of İzmir region (Emre et al., 2005)

Holoce. Quater. Historical1 İzmir fault Yes N 35 E-W 16882 Tuzla fault Yes RLS 50 N30E NA 3 Seferihisar fault Yes RLS 30 N20E NA 4 Gülbahçe fault Yes RLS 70 N-S NA 5 Gediz detachment Yes N 30 N70E NA 6 Kemalpaşa fault Yes N 24 N75E NA 7 Manisa fault Yes N 40 N65W NA 8 Dağkizilca fault Yes RLS 27 N70E NA 9 Güzelhisar fault Yes RLS 25 N70W NA 10 Menemen fault zone Yes RLS 17 N45W NA 11 Gümüldür fault Yes N 15 N55W NA 12 Bornova fault Yes RLS 19 N75W NA 13 Yenifoça fayı SS 20 NS

VLineament

V 050W 1

V 2 1928/M:6.5V 1

50N 155N 2--3 1994/M:5.2

V 3 2005/M:5.818 1

V 3 1992/M:6.0V 1 2003/M:5.6

SeismicityEnstrumenthal

60N 2 1977/M:5.5

Total lenght Gen. Trend FP dip/direction Number of segmentFault Name

ActivityFault Type

Emre et al 2005