The effect of olivine serpentinization on uniaxial compressive strength and apparent porosity in basalts

Kadir Karaman; Hasan Kolaylı; Yaşar Çakır; Erdoğan Timurkaynak

Makale detayları

The effect of olivine serpentinization on uniaxial compressive strength and apparent porosity in basalts

Yazarlar:

Kadir Karaman | Hasan Kolaylı | Yaşar Çakır | Erdoğan Timurkaynak

Yayıncı:

Gumushane University

Ana Başlıklar:

Kaya Mekaniği ve Tahkimat | Kaya Mekaniği | Mineraloji-Petrografi

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.197-207

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001313132

pISSN:

2146-538X

Anahtar kelimeler:

Özet:

 In this study, a relationship was observed between increasing rate of serpentinization with rocks uniaxial compressive strength UCS and apparent porosity, and the reasons for serpentinization were investigated. The study area, which is stratigraphically at different elevation levels, is divided into three classes A1, M2 and M3 according to the alteration zones. Petrographic thin section studies and Scanning Electron Microscopy SEM analyses were also carried out. According to the thin section analysis, serpentinization of olivine was obtained 8.25 for A1 basalts, while this value was 75.5 for M3. SEM analyses indicated that the samples have some microstructural defects such as micro-cracks especially in M2 and M3 basalts. The correlation degree between serpentinization rate with UCS and n  of basalts varied between 0.96-0.97 both for dry and saturated samples. However, the average values serpentinization rate, UCS, n  of A1, M2 and M3 exhibited the higher correlation coefficients r 1. The proximity of the volcanic cone and the fault line of M3, as well as its higher stratigraphical elevations, were considered to be the important factors causing serpentinization.

 In this study, a relationship was observed between increasing rate of serpentinization with rocks uniaxial compressive strength UCS and apparent porosity, and the reasons for serpentinization were investigated. The study area, which is stratigraphically at different elevation levels, is divided into three classes A1, M2 and M3 according to the alteration zones. Petrographic thin section studies and Scanning Electron Microscopy SEM analyses were also carried out. According to the thin section analysis, serpentinization of olivine was obtained 8.25 for A1 basalts, while this value was 75.5 for M3. SEM analyses indicated that the samples have some microstructural defects such as micro-cracks especially in M2 and M3 basalts. The correlation degree between serpentinization rate with UCS and n  of basalts varied between 0.96-0.97 both for dry and saturated samples. However, the average values serpentinization rate, UCS, n  of A1, M2 and M3 exhibited the higher correlation coefficients r 1. The proximity of the volcanic cone and the fault line of M3, as well as its higher stratigraphical elevations, were considered to be the important factors causing serpentinization.

 In this study, a relationship was observed between increasing rate of serpentinization with rocks uniaxial compressive strength UCS and apparent porosity, and the reasons for serpentinization were investigated. The study area, which is stratigraphically at different elevation levels, is divided into three classes A1, M2 and M3 according to the alteration zones. Petrographic thin section studies and Scanning Electron Microscopy SEM analyses were also carried out. According to the thin section analysis, serpentinization of olivine was obtained 8.25 for A1 basalts, while this value was 75.5 for M3. SEM analyses indicated that the samples have some microstructural defects such as micro-cracks especially in M2 and M3 basalts. The correlation degree between serpentinization rate with UCS and n  of basalts varied between 0.96-0.97 both for dry and saturated samples. However, the average values serpentinization rate, UCS, n  of A1, M2 and M3 exhibited the higher correlation coefficients r 1. The proximity of the volcanic cone and the fault line of M3, as well as its higher stratigraphical elevations, were considered to be the important factors causing serpentinization.

 Bu çalışmada, artan serpantinleşme oranı ile kayanın tek eksenli basınç dayanımı UCS ve görünür gözenekliliği arasında bir ilişki gözlemlenmiş ve serpantinleşmenin sebepleri araştırılmıştır. Stratigrafik olarak farklı kot seviyelerinde bulunan çalışma alanı, alterasyon zonlarına göre üç sınıfa A1, M2 ve M3 ayrılmıştır. Ayrıca, petrografik ince kesit çalışmaları ve Taramalı Elektron Mikroskobu SEM analizleri yapılmıştır. İnce kesit analizine göre olivinin serpantinleşmesi A1 bazaltları için 8.25 iken, bu değer M3 bazaltları için 75.5tir. SEM analizleri, numunelerin özellikle M2 ve M3 bazaltlarında mikro çatlaklar gibi bazı mikro-yapısal kusurlara sahip olduklarını göstermiştir. Serpantinleşme oranı ile UCS ve n  arasındaki korelasyon derecesi hem kuru hem de doygun numuneler için 0.96-0.97 arasında değişmiştir. Ancak A1, M2 ve M3ün ortalama değerleri serpantinleşme oranı, UCS, n  daha yüksek korelasyon katsayıları r 1 sergilemiştir. M3ün volkan konisi ve fay hattına yakınlığı ile stratigrafik olarak daha yüksek kotlardaki konumu serpantinleşmeye neden olan önemli faktörler olarak değerlendirilmiştir.

Makale detayları

The effect of olivine serpentinization on uniaxial compressive strength and apparent porosity in basalts

Yazarlar:

Kadir Karaman | Hasan Kolaylı | Yaşar Çakır | Erdoğan Timurkaynak

Yayıncı:

Gumushane University

Ana Başlıklar:

Kaya Mekaniği ve Tahkimat | Kaya Mekaniği | Mineraloji-Petrografi

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.197-207

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001313132

pISSN:

2146-538X

Apparent porosity

Serpentinization rate

Uniaxial compressive strengthGörünür gözeneklilik

Serpantinleşme oranı

Tek eksenli basınç dayanımı

Sayı

Makale detayları

The effect of olivine serpentinization on uniaxial compressive strength and apparent porosity in basalts

Yazarlar: Kadir Karaman | Hasan Kolaylı | Yaşar Çakır | Erdoğan Timurkaynak

Yayıncı: Gumushane University

Ana Başlıklar: Kaya Mekaniği ve Tahkimat | Kaya Mekaniği | Mineraloji-Petrografi

Dergi: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.197-207

Belge Tipi: Makale

Yayın Tarihi: 3/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001313132

pISSN: 2146-538X

Apparent porosity

Serpentinization rate

Uniaxial compressive strengthGörünür gözeneklilik

Serpantinleşme oranı

Tek eksenli basınç dayanımı

Sayı

Yazarlar:

Kadir Karaman | Hasan Kolaylı | Yaşar Çakır | Erdoğan Timurkaynak

Yayıncı:

Gumushane University

Ana Başlıklar:

Kaya Mekaniği ve Tahkimat | Kaya Mekaniği | Mineraloji-Petrografi

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 1, pp.197-207

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001313132

pISSN:

2146-538X