Petrophysical characteristics of Sarıçiçek and Sarıhan plutons: Investigation of the relationship between magnetic susceptibility and radiogenic heat production with in-situ geophysical measurements

Suna Altundaş; Hakan Çınar

Makale detayları

Petrophysical characteristics of Sarıçiçek and Sarıhan plutons: Investigation of the relationship between magnetic susceptibility and radiogenic heat production with in-situ geophysical measurements

Yazarlar:

Suna Altundaş | Hakan Çınar

Yayıncı:

Gumushane University

Ana Başlıklar:

Jeotermik ve Radyometri | Manyetizma ve Paleomagnetizm

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 2, pp.654-672

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318459

pISSN:

2146-538X

Anahtar kelimeler:

Özet:

 In-situ radioactivity and magnetic susceptibility measurements were made at 532 points on the Eocene Sarıçiçek Gümüşhane and Sarıhan Bayburt plutons. Samples were taken from plutons and its surrounding rocks and their densities were determined. In this study, both the contributions of granitic rocks to heat production and whether there is a relationship between these two petrophysical properties of the rocks radiogenic heat production and magnetic susceptibility were investigated. In addition, crustal classifications of rocks were made in terms of their radiogenic heat values. In the crust classification based on radiogenic heat production value; the average radiogenic heat production value 2.03 µWm3 of the Eocene aged Sarıhan Pluton, consisting of rocks of upper-lower continental crust origin, was obtained to be higher than the value of the Eocene aged Sarıçiçek Pluton 1.9 µWm3, consisting of rocks upper-middle continental crust origin. Average susceptibility values for Pluton, Melange belt, and Hozbirikyayla formations were calculated as 1.0810-3 SI, 0.13210-3 SI, and 0.05910-3 SI, respectively. Average susceptibility were determined as 1.51810-3 SI for Sarıçiçek Pluton and 2.501210-3 SI for Alibaba formation. The highest contribution to radiogenic heat in Sarıçiçek and Sarıhan Pluton came from K and Th. While there is general in good agreement with radiogenic heat and magnetic susceptibility of the Sarıçiçek and Sarıhan Plutons and formations surrounding, incompatibilities have also been observed in some places depending on the mineral and element contents of rocks. Unconformities have been associated with irregular changes in radionuclide amounts and mineral contents due to magmatism and subsequent processes.

 In-situ radioactivity and magnetic susceptibility measurements were made at 532 points on the Eocene Sarıçiçek Gümüşhane and Sarıhan Bayburt plutons. Samples were taken from plutons and its surrounding rocks and their densities were determined. In this study, both the contributions of granitic rocks to heat production and whether there is a relationship between these two petrophysical properties of the rocks radiogenic heat production and magnetic susceptibility were investigated. In addition, crustal classifications of rocks were made in terms of their radiogenic heat values. In the crust classification based on radiogenic heat production value; the average radiogenic heat production value 2.03 µWm3 of the Eocene aged Sarıhan Pluton, consisting of rocks of upper-lower continental crust origin, was obtained to be higher than the value of the Eocene aged Sarıçiçek Pluton 1.9 µWm3, consisting of rocks upper-middle continental crust origin. Average susceptibility values for Pluton, Melange belt, and Hozbirikyayla formations were calculated as 1.0810-3 SI, 0.13210-3 SI, and 0.05910-3 SI, respectively. Average susceptibility were determined as 1.51810-3 SI for Sarıçiçek Pluton and 2.501210-3 SI for Alibaba formation. The highest contribution to radiogenic heat in Sarıçiçek and Sarıhan Pluton came from K and Th. While there is general in good agreement with radiogenic heat and magnetic susceptibility of the Sarıçiçek and Sarıhan Plutons and formations surrounding, incompatibilities have also been observed in some places depending on the mineral and element contents of rocks. Unconformities have been associated with irregular changes in radionuclide amounts and mineral contents due to magmatism and subsequent processes.

 In-situ radioactivity and magnetic susceptibility measurements were made at 532 points on the Eocene Sarıçiçek Gümüşhane and Sarıhan Bayburt plutons. Samples were taken from plutons and its surrounding rocks and their densities were determined. In this study, both the contributions of granitic rocks to heat production and whether there is a relationship between these two petrophysical properties of the rocks radiogenic heat production and magnetic susceptibility were investigated. In addition, crustal classifications of rocks were made in terms of their radiogenic heat values. In the crust classification based on radiogenic heat production value; the average radiogenic heat production value 2.03 µWm3 of the Eocene aged Sarıhan Pluton, consisting of rocks of upper-lower continental crust origin, was obtained to be higher than the value of the Eocene aged Sarıçiçek Pluton 1.9 µWm3, consisting of rocks upper-middle continental crust origin. Average susceptibility values for Pluton, Melange belt, and Hozbirikyayla formations were calculated as 1.0810-3 SI, 0.13210-3 SI, and 0.05910-3 SI, respectively. Average susceptibility were determined as 1.51810-3 SI for Sarıçiçek Pluton and 2.501210-3 SI for Alibaba formation. The highest contribution to radiogenic heat in Sarıçiçek and Sarıhan Pluton came from K and Th. While there is general in good agreement with radiogenic heat and magnetic susceptibility of the Sarıçiçek and Sarıhan Plutons and formations surrounding, incompatibilities have also been observed in some places depending on the mineral and element contents of rocks. Unconformities have been associated with irregular changes in radionuclide amounts and mineral contents due to magmatism and subsequent processes.

 Granit kökenli farklı litolojik birimler içeren Eosen yaşlı Sarıçiçek Gümüşhane ve Sarıhan Bayburt Plütonları üzerinde 532 noktada yerinde radyoaktivite ve manyetik suseptibilite ölçümleri yapılmıştır. Her iki plüton ve çevresindeki kayaçlardan numuneler alınarak laboratuvar ortamında bu kayaçların yoğunlukları belirlenmiştir. Yapılan çalışmada hem granitik kayaçların ısı üretimine olan katkıları ile ısı değerine bağlı kabuk sınıflaması hem de kayaçların radyojenik ısı üretimi ve manyetik suseptibiliteleri arasında bir ilişkinin olup olmadığı araştırılmıştır. Radyojenik ısı üretim değerine göre yapılan kabuk sınıflamasında; üst-alt kıtasal kabuk kökenli kayaçlardan oluşan Eosen yaşlı Sarıhan Plütonunun ortalama radyojenik ısı değeri 2.03 µWm3, üst-orta kıtasal kabuk kökenli kayaçlardan oluşan Eosen yaşlı Sarıçiçek Plütonunun değerinden 1.9 µWm3 yüksektir. Plüton, Melanj kuşağı ve Hozbirikyayla formasyonları için ortalama suseptibilite değerleri sırasıyla 1.0810-3 SI, 0.13210-3 SI ve 0.05910-3 SI olarak hesaplanmıştır. Ortalama suseptibilite değerleri Sarıçiçek Plütonu için 1.51810-3 SI ve Alibaba formasyonu için 2.501210-3 SI olarak belirlenmiştir. Çalışma alanındaki radyoaktif ölçümlere göre Sarıçiçek Plütonunda radyojenik ısı üretimine en büyük katkı potasyumdan K gelirken, Sarıhan Plütonunda ise en büyük katkıyı toryum Th radyonüklidi sağlamıştır. Sarıçiçek ve Sarıhan Plütonunları ve çevre formasyonların radyojenik ısı üretim değerleri ile manyetik suseptibilite değerleri arasında genel olarak bir uyum söz konusu iken, kayaçların içerdiği mineral ve element içeriklerine bağlı olarak uyumsuzluklar da gözlenmiştir. Uyumsuzluklar, magmatizma ve sonrasındaki süreçlerden dolayı radyonüklid miktarlarında ve mineral içeriklerinde meydana gelen düzensiz değişimlerle ilişkilendirilmiştir.

Makale detayları

Petrophysical characteristics of Sarıçiçek and Sarıhan plutons: Investigation of the relationship between magnetic susceptibility and radiogenic heat production with in-situ geophysical measurements

Yazarlar:

Suna Altundaş | Hakan Çınar

Yayıncı:

Gumushane University

Ana Başlıklar:

Jeotermik ve Radyometri | Manyetizma ve Paleomagnetizm

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 2, pp.654-672

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318459

pISSN:

2146-538X

Pluton

Crustal classification

Magnetic susceptibility

Radiogenic heatPlüton

Kabuksal sınıflama

Manyetik suseptibilite

Radyojenik ısı

Sayı

Makale detayları

Yazarlar: Suna Altundaş | Hakan Çınar

Yayıncı: Gumushane University

Ana Başlıklar: Jeotermik ve Radyometri | Manyetizma ve Paleomagnetizm

Dergi: Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 2, pp.654-672

Belge Tipi: Makale

Yayın Tarihi: 6/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001318459

pISSN: 2146-538X

Sayı

Yazarlar:

Suna Altundaş | Hakan Çınar

Yayıncı:

Gumushane University

Ana Başlıklar:

Jeotermik ve Radyometri | Manyetizma ve Paleomagnetizm

Dergi:

Gümüşhane Üniversitesi Fen Bilimleri Dergisi Vol.14 Issue 2, pp.654-672

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001318459

pISSN:

2146-538X