ALAKEÇI-KISACIK (BAYRAMİÇ-BALIKESİR) CEVHERLEŞME BÖLGESİNİN LANDSAT 7 ETM+ KULLANILARAK CROSTA TEKNİĞİ İLE İNCELENMESİ

Yıl 2007, Cilt: 22 Sayı: 3, 29 - 40, 01.09.2007

Doğan Aydal Alaaddin Vural , İpek USLU Taşdelen Emine GÖKÇE Aydal

Öz

Çalışma bölgesi, Landsat 7 ETM verileri kullanılarak çeşitli uzaktan algılama teknikleri ile incelenmiştir. Crosta tekniği, görüntü zenginleştirme tekniklerinin önemlilerinden biridir ve özellikle demirce zengin ve hidrotermal alterasyon zonları gösteren madenlerde, cevherleşme alanlarını belirlemede son yıllarda sıkça kullanılmaktadır. Çalışma alanında, hidrotermal alterasyona uğramış ve demiroksit’ce zenginleşmiş bölgeler (Alakeçi-Kısacık) özellikle seçilmiş ve Crosta tekniği, seçilmiş 6 band ve 4 band kullanılarak ayrı ayrı denetlenmiştir. Çalışma sonunda, elde edilen verileri göz önüne alındığında, klasik metodlar kullanılarak daha önce belirlenmiş cevherleşme bölgelerinin, kullanılan Crosta tekniği ile de başarı ile belirlendiği görülmüştür.

Anahtar Kelimeler

Bigadiç, Crosta, Landsat, Uzaktan Algılama, Coğrafi Bilgi Sistemi

Crosta Technique Applicatıon On Bayramic (Alakeçı-Kısacık) Mineralized Area By Using Landsat 7 Etm+ Data

Öz

The study area investigated by using Landsat ETM data and various image inhancement techniques was applied. Crosta technique is one of the important image inhancement techniques and commonly used in determining hydrothermal areas and as well as ironoxide enriched areas. In this study, especially hydrothermally and ironoxide enriched areas( Alakeçi-Kısacık) were chosen intentionally and Crosta technique was applied and checked by using selected 6 ETM bands and 4 ETM band sets separately. At the end of the study, the determined hydrothermally and ironoxide enriched areas were seen well-adjusted the pre-determined mineralized areas which were found by using all classical geological and geochemical techniques.

Anahtar Kelimeler

Bigadiç, Crosta, Landsat, Remote Sensing, Geographic Information System

Kaynakça

• Abrams, M. J., Brown, D., Lepley, L. and Sadowski, R., 1983, Remote sensing for porphyry copper deposits in Southern Arizona. Economic Geology, 78, 591-604.
• ASLANER, M., 1965, Etude geologique et petrographique de la region dʹEdremit-Havran (Turquie). M.T.A. Publ., 119.
• Aydal, D., Arda, E. ve Dumanlılar, Ö., 2006, Applications of Crosta Techniques on alteration products of the granitoidic rocks. Using Landsat ETM+ 7: A case study in eastern Taurite belt, SE Turkey;
• International Journal of Remote Sensing, accepted for publication. Aygen, T., 1956, Balya bölgesi jeolojisinin incelenmesi, MTA Enstitüsü Yayım. 11, 1-95.
• Beccaletto and Jenny, 2004, Geology and Correlation of the Ezine Zone: a Rhodope Fragment in NW Turkey ? Accepted for publication in the Turkish Journal of Earth Sciences.
• Bennet, S. A., Atkinson, W.W. and Kruse, F. A., 1993, Use of Thematic Mapper imagery to identify mineralization in the Santa Teresa district, Sonara, Mexico. International Geology Review, 35, 1009-1029.
• Crosta, A. and Moore, J. McM., 1989, Enhancement of Landsat Thematic Mapper imagery for residual soil mapping in SW Minais Gerais State, Brazil: a prospecting case history in Greenstone belt terrain. In: Proceedings of the 7th ERIM Thematic Conference: Remote sensing for exploration geology, 1173-1187.
• Ercan, T., 1979, Batı Anadolu, Trakya ve Ege adalanndaki Senozoyik volkanizması, Jeoloji Mühendisliği, 10, 117-137.
• Drury, S.A., 2001, Image Interpretation in Geology, Blackwell Science Inc. (USA), Nelson Thornes (UK), 3th edition, 304.
• Gümüş, A., 1964, Important lead-zinc deposits of Turkey: Symposium on Mining Geology and the Base Metals, CENTO, Ankara, 155-168.
• Hunt, G. R., ve Salisbury, J. W., ve Lenhoff, G. J., 1978, Visible and near-infrared spectra of minerals and rocks: III Oxides and hydroxides, Modern Geology 2, 195-205.
• Kaaden, G., 1959, Age relations of magmatic activüy and metamorphic processes in the northwestern part of Anatolia, Turkey, MTA Enstitüsü Bülteni 52, 15-33.
• Kalafatçıoğlu, A., 1963, Geology around Ezine and Bozcaada and the age of the limestones and serpentines, MTA Enstitüsü Bülteni 60, 61-70
• Kaufman, H., 1988, Mineral exploration along the Agaba-Levant structure by use of TM-data concepts, processing and results. International Journal of Remote Sensing 9, 1630-1658.
• Loughlin, W. P., 1991, Principal Component Analysis for alteration mapping. Photogrammetric Engineering and Remote Sensing, 57, 1163-1169.
• Meriç, E., Ersoy, Ş. ve Görmüş, M., 2000. Loftusia (foraminifer) türlerinin Maastrihtiyen (Geç Kretase) Tetis Okyanusu’ndaki paleocoğrafik yayılımı üzerine yeni görüşler, Hacettepe Üniv. Yerbilimleri Dergisi 22, 79-93.
• Okay, A.I. ve Altıner, D., 2004, Uppermost Triassic limestone in the Karakaya Complex – stratigraphic and tectonic significance. Turkish Journal of Earth Sciences 13, 187-199.
• Okay, A.I. ve Göncüoğlu, M.C., 2004, Karakaya Complex: a review of data and concepts. Turkish Journal of Earth Sciences, 13, 77-95.
• Okay, A.l., Siyako, M. ve Bürkan, K.A., 1990, Biga yanmadastnın jeolojisi ve tektonik evrimi. TPAG Bull. 2(1), 83-121.
• Ranjbar, H., Honarmand, M. ve Moezifar, Z., 2002, Application of the Crosta technique for porphyry copper alteration mapping, using ETM+ data, : A case study of Meiduk and SAR Cheshmeh areas, Kerman, Iran, Exploration and Mining Geology 11, 43-48.
• Ranjbar, H., Honarmand, M. ve Moezifar, Z., 2004, Application of the Crosta tecnique for porphyry copper alteration mapping, using TM+ data in the southern part of the Iranian volcanic sedimentary belt, Journal of Asian Earth Sciences, 24, 237-243.
• Rutz-Armenta, J. R. ve Prol-Ledesma, R. M., 1998, Techniques for enhancing the spectral response of hydrothermal alteration minerals in Thematic Mapper images of Central Mexico, International Journal of Remote Sensing 19, 1981-2000.
• Sabins, F. F., 1999, Remote Sensing for Mineral Exploration, Ore Geology Reviews 14, 157-183.
• Siyako, M., Bürkan, K.A. ve Okay, A.1., 1989, Biga ve Gelibolu Yarımadaları’nın Tersiyer Jeolojisi ve hidrokarbon olanakları, Türk. Petr. Jeolog. Dern. Bült. 1/3, 183-200.
• Tangestani, M. H. ve Moore, F., 2000, Iron oxide and hydroxyl enhancement using the Crosta Method: a case study from the Zagros Belt, Fars province, Iran, Communication, JAG 2, 140-146.
• Tangestani, M.H. ve Moore, F., 2001, Comparison of three principal component analysis techniques to porphyry copper alteration mapping. A case study, Meiduk area, Kerman, Iran. Canadian Journal of Remote Sensing 27, 176-182.
• Ustaömer, P.A. ve Kipman, E., 1997, Remnant of a pre-Early Ordovician Cadomian active margin in W Pontides, N Turkey: EUG 9 Meeting, Abstract, France, 382.