ŞAPHANE (ÇORUM) DAMAR TİPİ ALTIN CEVHERLEŞMESİNDE MULTİSPEKTRAL UYDU GÖRÜNTÜLERİ KULLANILARAK HİDROTERMAL ALTERASYON MİNERAL HARİTALAMASI VE ÇİZGİSELLİK ANALİZİ

Oktay Canbaz; Esra Ünal Çakır

doi:10.17780/ksujes.1112817

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ŞAPHANE (ÇORUM) DAMAR TİPİ ALTIN CEVHERLEŞMESİNDE MULTİSPEKTRAL UYDU GÖRÜNTÜLERİ KULLANILARAK HİDROTERMAL ALTERASYON MİNERAL HARİTALAMASI VE ÇİZGİSELLİK ANALİZİ

Öz

Uzaktan algılama teknikleri litolojik özelliklerin ve minerallerin haritalanmasında, yapısal özelliklerin ortaya çıkarılmasında oldukça kullanışlı veriler sunmaktadır. Özellikle metalik madenlerin ilk arama aşamalarından bir tanesi olan hidrotermal alterasyon minerallerinin dağılımlarının daha az maliyetle ve kısa sürede haritalanması oldukça önemli sonuçlar ortaya çıkarmaktadır. Çalışma alanında, Eosen volkanizmasına ait ürünler ile hidrotermal çözelti faaliyetlerinin neden olduğu alterasyonlar yoğun olarak gözlenmektedir. Bu yoğun alterasyonlar, yaklaşık KD-GB doğrultulu altın içeren hidrotermal damarlarla ilişkilendirilmektedirler. Altın potansiyeli yüksek olan bu saha sarp topografya ve ulaşılması güç yüzleklere sahiptir. Bölgede arazi çalışmaları güçlükle gerçekleştirilmekte olup çalışmalar sırasında birçok alan gözden kaçabilmektedir. Bu çalışma, ASTER uydu verisinde bitki örtüsü maskeleme (NDVI), bant oranlama gibi görüntü zenginleştirme teknikleri ile spektral sınıflandırma yöntemi uygulanarak hidrotermal alterasyon minerallerinin haritalanmasına yönelik gerçekleştirilmiştir. Ayrıca, damar tipi cevherleşmelerin tespitine yönelik ise Landsat-8 OLI uydu verisinden elde edilen 15 m çözünürlüğe sahip görüntüde otomatik çizgisellik analizi uygulanmıştır. Elde edilen sonuçlar, 84,8 genel doğruluk ve 0,836 kappa katsayısına sahip olup arazi verileri ile yüksek oranda doğruluk göstermektedir. Çalışmada elde edilen haritaların bölgedeki yeni altın ve/veya diğer değerli metalik cevherleşmeler için kullanışlı ve öncü veriler sunacağı düşünülmektedir.

Anahtar Kelimeler

HYDROTHERMAL ALTERATION MINERAL MAPPING AND LINEAMENT ANALYSIS USING MULTISPECTRAL SATELLITE IMAGES IN VEIN TYPE GOLD MINERALIZATION IN ŞAPHANE (ÇORUM)

Abstract

Remote sensing techniques provide very useful data for mapping lithological features and minerals, and also revealing structural features. In particular, mapping the distributions of hydrothermal alteration minerals, which is one of the first exploration stages of metallic ore deposits, with less cost and in a short time reveals very important results. In the study area, Eocene volcanic rocks and alterations caused by hydrothermal fluids activities are intensely observed. These intense alterations are associated with gold-bearing hydrothermal veins in approximately NE-SW direction. This area, which has a high gold potential, has a steep topography and is difficult to access. Field studies in the region are carried out with difficulty and many areas can be overlooked during the studies. The mapping of distribution of hydrothermal alteration minerals was carried out by applying the spectral classification method with image enhancement techniques such as vegetation masking (NDVI), and band ratio in ASTER data in this study. In addition, automatic lineament analysis was applied to the 15 m resolution image obtained from the Landsat-8 OLI data for the detection of vein-type mineralizations. The results obtained have an overall accuracy of 84.8 and a kappa coefficient of 0.836, showing high accuracy with field data.It is suggested that the maps obtained in the study will provide useful and advanced data for new gold and/or other precious metallic mineralizations in the region.

Keywords

References

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Details

Primary Language

Turkish

Subjects

Geological Sciences and Engineering (Other)

Journal Section

Research Article

Authors

Oktay Canbaz ^*
0000-0002-8161-1326
Türkiye

Esra Ünal Çakır
0000-0002-4196-4303
Türkiye

Publication Date

September 3, 2022

Submission Date

May 5, 2022

Acceptance Date

August 6, 2022

Published in Issue

Year 2022 Volume: 25 Number: 3

DOI

https://doi.org/10.17780/ksujes.1112817

IZ

https://izlik.org/JA42TZ97SR

Cite

RIS / Bibtex

APA

Canbaz, O., & Çakır, E. Ü. (2022). ŞAPHANE (ÇORUM) DAMAR TİPİ ALTIN CEVHERLEŞMESİNDE MULTİSPEKTRAL UYDU GÖRÜNTÜLERİ KULLANILARAK HİDROTERMAL ALTERASYON MİNERAL HARİTALAMASI VE ÇİZGİSELLİK ANALİZİ. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 25(3), 313-328. https://doi.org/10.17780/ksujes.1112817

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