A. Zaenudin, I. Darmawan, A. Farduwin, R. C. Wibowo
Recommended Citation ZAENUDIN, AHMAD; DARMAWAN, I GEDE BOY; FARDUWIN, ALHADA; and WIBOWO, RAHMAT CATUR (2022) "Shear wave velocity estimation based on the particle swarm optimization method of HVSR curve inversion in Bakauheni district, Indonesia," Turkish Journal of Earth Sciences: Vol. 31: No. 5, Article 5. https://doi.org/10.55730/1300-0985.1815 Available at: https://journals.tubitak.gov.tr/earth/vol31/iss5/5
{"title":"Shear wave velocity estimation based on the particle swarm optimization method of HVSR curve inversion in Bakauheni district, Indonesia","authors":"A. Zaenudin, I. Darmawan, A. Farduwin, R. C. Wibowo","doi":"10.55730/1300-0985.1815","DOIUrl":"https://doi.org/10.55730/1300-0985.1815","url":null,"abstract":"Recommended Citation ZAENUDIN, AHMAD; DARMAWAN, I GEDE BOY; FARDUWIN, ALHADA; and WIBOWO, RAHMAT CATUR (2022) \"Shear wave velocity estimation based on the particle swarm optimization method of HVSR curve inversion in Bakauheni district, Indonesia,\" Turkish Journal of Earth Sciences: Vol. 31: No. 5, Article 5. https://doi.org/10.55730/1300-0985.1815 Available at: https://journals.tubitak.gov.tr/earth/vol31/iss5/5","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42745245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Recommended Citation KAYA, TUĞÇE NAGİHAN ARSLAN; SARI, EROL; and KURT, MEHMET ALİ (2022) "Sedimentary records of trace elements contamination in sediment core from the Gulf of Gemlik, Marmara Sea, Turkey: history, contamination degree, and sources," Turkish Journal of Earth Sciences: Vol. 31: No. 5, Article 3. https://doi.org/10.55730/1300-0985.1813 Available at: https://journals.tubitak.gov.tr/earth/vol31/iss5/3
KAYA, TUĞÇE NAGİHAN ARSLAN;纱丽,EROL;和KURT, MEHMET ALİ (2022)“土耳其马尔马拉海Gemlik湾沉积物岩心中微量元素污染的沉积记录:历史、污染程度和来源”，《土耳其地球科学杂志》，第31卷，第5期，第3条。https://doi.org/10.55730/1300-0985.1813可在https://journals.tubitak.gov.tr/earth/vol31/iss5/3找到
{"title":"Sedimentary records of trace elements contamination in sediment core from the Gulf of Gemlik, Marmara Sea, Turkey: history, contamination degree, and sources","authors":"Tuğçe Nagihan Arslan Kaya, E. Sarı, M. A. Kurt","doi":"10.55730/1300-0985.1813","DOIUrl":"https://doi.org/10.55730/1300-0985.1813","url":null,"abstract":"Recommended Citation KAYA, TUĞÇE NAGİHAN ARSLAN; SARI, EROL; and KURT, MEHMET ALİ (2022) \"Sedimentary records of trace elements contamination in sediment core from the Gulf of Gemlik, Marmara Sea, Turkey: history, contamination degree, and sources,\" Turkish Journal of Earth Sciences: Vol. 31: No. 5, Article 3. https://doi.org/10.55730/1300-0985.1813 Available at: https://journals.tubitak.gov.tr/earth/vol31/iss5/3","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41608144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A preliminary account on Devonian trilobites from Arabian Plate, SE Turkey","authors":"C. Crônier, I. Hoşgör","doi":"10.55730/1300-0985.1814","DOIUrl":"https://doi.org/10.55730/1300-0985.1814","url":null,"abstract":"","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42292037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hami̇t Haluk Seli̇m, Aykut Güçtekin, Ferhan Şahi̇n, Mustafa Kaya, Beri̇l Kaya, Elanur Güner, K. Taş, Ahmet Karakaş, Yasemi̇n Kantarçeken
: Şenkaya chrysoprase is a gemstone and can be found near the Turnalı village located in the west-northwest of Şenkaya (Erzurum) county in the uplifted Kırdağ of Northeast Anatolia of Turkey. Chrysoprase only found in Şenkaya County and known with the same name commercially in Turkey is a light-dark green and cryptocrystalline structure gemstone encountered in the Örükyayla Mélange. Samples were collected from the field for defining mineralogical-petrographical, XRD, XRF, ICP-MS, optical cathodoluminescence microscopy (OCLM), FTIR-Raman and stable isotopic properties of Şenkaya chrysoprase. According to mineralogical and petrographic examination, Şenkaya chrysoprase has generally heterogeneous color distribution in macroscale and has 5 Mohs mineral hardness. Microquartz filling (10%–15%) was seen in the microexamination with serpentine as main component with partly massive opal type silica. The XRF analyses indicate that many samples had high SiO 2 values wt%). As a result of trace elements, rare earth elements, Au-Pt group analyses using ICP-MS, Ni (167–387 ppm) and Co (12.57–74.78 ppm) values are quite remarkable. In the OCLM studies, few metallic minerals which could produce CL and could spread CL in different colors due to some trace activator elements were observed. Oxygen isotopic (δ 18 O V-SMOW ) values obtained from three chrysoprase samples are 24.8‰, 27.7‰ and 30.63‰, respectively and mean formation temperature is 96–99 o C.
{"title":"Mineralogical, petrological, and geochemical characteristics of Şenkaya Chrysoprase,Turkey","authors":"Hami̇t Haluk Seli̇m, Aykut Güçtekin, Ferhan Şahi̇n, Mustafa Kaya, Beri̇l Kaya, Elanur Güner, K. Taş, Ahmet Karakaş, Yasemi̇n Kantarçeken","doi":"10.55730/1300-0985.1762","DOIUrl":"https://doi.org/10.55730/1300-0985.1762","url":null,"abstract":": Şenkaya chrysoprase is a gemstone and can be found near the Turnalı village located in the west-northwest of Şenkaya (Erzurum) county in the uplifted Kırdağ of Northeast Anatolia of Turkey. Chrysoprase only found in Şenkaya County and known with the same name commercially in Turkey is a light-dark green and cryptocrystalline structure gemstone encountered in the Örükyayla Mélange. Samples were collected from the field for defining mineralogical-petrographical, XRD, XRF, ICP-MS, optical cathodoluminescence microscopy (OCLM), FTIR-Raman and stable isotopic properties of Şenkaya chrysoprase. According to mineralogical and petrographic examination, Şenkaya chrysoprase has generally heterogeneous color distribution in macroscale and has 5 Mohs mineral hardness. Microquartz filling (10%–15%) was seen in the microexamination with serpentine as main component with partly massive opal type silica. The XRF analyses indicate that many samples had high SiO 2 values wt%). As a result of trace elements, rare earth elements, Au-Pt group analyses using ICP-MS, Ni (167–387 ppm) and Co (12.57–74.78 ppm) values are quite remarkable. In the OCLM studies, few metallic minerals which could produce CL and could spread CL in different colors due to some trace activator elements were observed. Oxygen isotopic (δ 18 O V-SMOW ) values obtained from three chrysoprase samples are 24.8‰, 27.7‰ and 30.63‰, respectively and mean formation temperature is 96–99 o C.","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46672280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The study area comprises a part of the Central Anatolian Cenozoic volcanism within the Cappadocia Volcanic Province (CVP). Obsidian, perlite rhyolite flows, and volcanic ashes are observed in the study area and the spherulites within the obsidian are the objects of this study. The spherulites occupied within the obsidian in the form of round nodules 0.5–10 cm in diameter. The confocal Raman spectra of feldspar minerals within the spherulites are characterized by T-O-T and M-O lattice modes in the range of 100–250 cm –1 , O-T-O deformation and T-O-T lattice modes in the range of 250–350 cm –1 , and O-T-O stretch and O-T-O deformation modes in the range of 400–600 cm –1 and cristobalite minerals are remarkable with their weak peaks at the 296.5 cm –1 and 411.1 cm –1 Raman shifts. The geothermometer studies in the plagioclase minerals which are oligoclase and andesine in composition suggest that the spherulites may have 600–650 °C crystallization temperature. The temperature range shows that the spherulites start the first crystallization at the glass transition (Tg) levels and then continue to grow up to below Tg levels and brown rings are associated with Fe-oxidation development at the last stage.
研究区为卡帕多西亚火山省(CVP)中安纳托利亚新生代火山活动的一部分。研究区观测到黑曜岩、珍珠岩流纹岩流、火山灰流，黑曜岩内的球晶为研究对象。球晶以直径0.5 ~ 10 cm的圆形结核的形式分布在黑曜岩内部。球晶内长石矿物的共焦拉曼光谱特征为100 ~ 250 cm -1范围内的T-O-T和M-O晶格模式，250 ~ 350 cm -1范围内的O-T-O变形和T-O-T晶格模式，400 ~ 600 cm -1范围内的O-T-O拉伸和O-T-O变形模式，方石英矿物的拉曼位移弱峰为296.5 cm -1和411.1 cm -1。对斜长石矿物进行的地温计研究表明，其晶化温度可能在600 ~ 650℃之间。斜长石矿物成分为低聚长石和安地石。温度范围表明，球晶在玻璃化转变(Tg)水平开始第一次结晶，然后继续长大到低于Tg水平，棕色环在最后阶段与铁氧化发展有关。
{"title":"Nature and crystallization stages of spherulites within the obsidian: Acıgöl (Cappadocia- Nevşehir, Turkey)","authors":"B. Güllü, Kıymet Deniz","doi":"10.55730/1300-0985.1819","DOIUrl":"https://doi.org/10.55730/1300-0985.1819","url":null,"abstract":": The study area comprises a part of the Central Anatolian Cenozoic volcanism within the Cappadocia Volcanic Province (CVP). Obsidian, perlite rhyolite flows, and volcanic ashes are observed in the study area and the spherulites within the obsidian are the objects of this study. The spherulites occupied within the obsidian in the form of round nodules 0.5–10 cm in diameter. The confocal Raman spectra of feldspar minerals within the spherulites are characterized by T-O-T and M-O lattice modes in the range of 100–250 cm –1 , O-T-O deformation and T-O-T lattice modes in the range of 250–350 cm –1 , and O-T-O stretch and O-T-O deformation modes in the range of 400–600 cm –1 and cristobalite minerals are remarkable with their weak peaks at the 296.5 cm –1 and 411.1 cm –1 Raman shifts. The geothermometer studies in the plagioclase minerals which are oligoclase and andesine in composition suggest that the spherulites may have 600–650 °C crystallization temperature. The temperature range shows that the spherulites start the first crystallization at the glass transition (Tg) levels and then continue to grow up to below Tg levels and brown rings are associated with Fe-oxidation development at the last stage.","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47171449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
: The large-scale production and injection of geothermal fluids induce pressure, volume, and temperature gradient changes in the subsurface, which may result in surface deformation as well. Interferometric synthetic aperture radar (InSAR) is a promising utility for monitoring ground surface deformation and inferring subsurface reservoir operations that are difficult to observe directly. This study provides the first wide-area InSAR-derived long-term ground deformation across major geothermal fields in western Turkey. It aims to identify ground deformation hotspots within the geothermal exploitation sites and analyze their relationship with energy production and pumping. In the present study, the whole 2014–2020 Sentinel 1-A and 1-B SAR archive available over the region along ascending and descending orbits was processed using the persistent scatterer interferometry (PS-InSAR) technique. Compaction and land subsidence hot spots caused by fluid withdrawal are found within the geothermal fields. The results indicate that the observed systematic surface subsidence deformation result from the increase of geothermal production during the observation period in western Turkey. The real-time power data of geothermal plants retrieved from the transparency platform of the Turkish energy exchange are related to surface deformation. We estimated the drainage area of the production wells using subsidence deformation, caused by pore pressure decline in the reservoir. The results provide supporting evidence for the systematic monitoring and identification of deformation patterns in spatial-temporal extend can reveal reservoir dynamics and compartments, which are crucial for reservoir characterization and field development plan.
{"title":"Wide-area ground deformation monitoring in geothermal fields in western Turkey","authors":"Gokhan Aslan, Hakki Aydin, Z. Çakır","doi":"10.55730/1300-0985.1771","DOIUrl":"https://doi.org/10.55730/1300-0985.1771","url":null,"abstract":": The large-scale production and injection of geothermal fluids induce pressure, volume, and temperature gradient changes in the subsurface, which may result in surface deformation as well. Interferometric synthetic aperture radar (InSAR) is a promising utility for monitoring ground surface deformation and inferring subsurface reservoir operations that are difficult to observe directly. This study provides the first wide-area InSAR-derived long-term ground deformation across major geothermal fields in western Turkey. It aims to identify ground deformation hotspots within the geothermal exploitation sites and analyze their relationship with energy production and pumping. In the present study, the whole 2014–2020 Sentinel 1-A and 1-B SAR archive available over the region along ascending and descending orbits was processed using the persistent scatterer interferometry (PS-InSAR) technique. Compaction and land subsidence hot spots caused by fluid withdrawal are found within the geothermal fields. The results indicate that the observed systematic surface subsidence deformation result from the increase of geothermal production during the observation period in western Turkey. The real-time power data of geothermal plants retrieved from the transparency platform of the Turkish energy exchange are related to surface deformation. We estimated the drainage area of the production wells using subsidence deformation, caused by pore pressure decline in the reservoir. The results provide supporting evidence for the systematic monitoring and identification of deformation patterns in spatial-temporal extend can reveal reservoir dynamics and compartments, which are crucial for reservoir characterization and field development plan.","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47337457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Seismic a and b-values and crustal parameters of Samos Island-Aegean Sea, Lesvos Island-Karaburun, Chios Island-Gökova Bay earthquakes","authors":"Oya Ankaya Pamukçu","doi":"10.3906/yer-2107-13","DOIUrl":"https://doi.org/10.3906/yer-2107-13","url":null,"abstract":"","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44342363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impacts of the 2020 Samos earthquake on the modeling of ancient seismic events","authors":"S. Stiros","doi":"10.3906/yer-2107-7","DOIUrl":"https://doi.org/10.3906/yer-2107-7","url":null,"abstract":"","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46370595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Uzelli, E. Bilgiç, B. Öztürk, A. Baba, H. Sözbilir, O. Tatar
{"title":"Effects of seismic activity on groundwater level and geothermal systems in İzmir, Western Anatolia, Turkey: the case study from October 30, 2020 Samos Earthquake","authors":"T. Uzelli, E. Bilgiç, B. Öztürk, A. Baba, H. Sözbilir, O. Tatar","doi":"10.3906/yer-2101-9","DOIUrl":"https://doi.org/10.3906/yer-2101-9","url":null,"abstract":"","PeriodicalId":49411,"journal":{"name":"Turkish Journal of Earth Sciences","volume":"103 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70258715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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