Pub Date : 2022-10-13DOI: 10.19111/bulletinofmre.1188761
Ebru Albayrak
Located between Africa, Asia and Europe, Anatolia is a crossroads for the migration of many mammals such as elephantids. For this reason, important fossils belonging to different species of elephantids were found from various localities. In this study, mammoth molars found in Samsun-Ladik were examined. As a result of the examination, M. meridionalis and M. trogontherii were identified for the first time from this region. Although the number of fossils examined is very small, the results obtained are very important as Mammuthus was identified for the first time from Samsun. When considered together with the Mammuthus species identified from Anatolia so far, the results obtained from Samsun will provide information about the distribution of the Mammuthus genus in Anatolia and the changes it has undergone.
{"title":"First Mammuthus findings from Samsun district (Türkiye)","authors":"Ebru Albayrak","doi":"10.19111/bulletinofmre.1188761","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1188761","url":null,"abstract":"Located between Africa, Asia and Europe, Anatolia is a crossroads for the migration of many mammals such as elephantids. For this reason, important fossils belonging to different species of \u0000 elephantids were found from various localities. In this study, mammoth molars found in Samsun-Ladik were examined. As a result of the examination, M. meridionalis and M. trogontherii were identified for the first time from this region. Although the number of fossils examined is very small, the results obtained are very important as Mammuthus was identified for the first time from Samsun. When considered together with the Mammuthus species identified from Anatolia so far, the results obtained from Samsun will provide information about the distribution of the Mammuthus genus in Anatolia and the changes it has undergone.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46029619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-11DOI: 10.19111/bulletinofmre.1187308
A. C. Şengör
This paper is a somewhat enlarged version of my farewell lecture delivered on 23rd March 2022 at the Faculty of Mines of the Istanbul Technical University (ITU). It reviews some of the important developments in geology during the 40 years I was a faculty member at the ITU and the contribution of the ITU geologists to some of these developments. As stipulated in the syllabus, the first hour-and-a half of this lesson we devoted to a discussion of normal faults. As this is my last lesson as a faculty member at the ITU because of the compulsory retirement imposed by law on every professor at age 67 in Türkiye, I gladly respond to a general request that I review in the remaining hour-and-a-half the development of geology in the world during the 40 years I spent at the ITU and ITU's contribution to some of these developments.
{"title":"Farewell lecture by Professor A. M. Celâl Şengör the developments in geology during the last 40 years I spent at the ITU and ITU's contribution","authors":"A. C. Şengör","doi":"10.19111/bulletinofmre.1187308","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1187308","url":null,"abstract":"This paper is a somewhat enlarged version of my farewell lecture delivered on 23rd March 2022 at the Faculty of Mines of the Istanbul Technical University (ITU). It reviews some of the important developments in geology during the 40 years I was a faculty member at the ITU and the contribution of the ITU geologists to some of these developments. As stipulated in the syllabus, the first hour-and-a half of this lesson we devoted to a discussion of normal faults. As this is my last lesson as a faculty member at the ITU because of the compulsory retirement imposed by law on every professor at age 67 in Türkiye, I gladly respond to a general request that I review in the remaining hour-and-a-half the development of geology in the world during the 40 years I spent at the ITU and ITU's contribution to some of these developments.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43307191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-10-10DOI: 10.19111/bulletinofmre.1186708
A. Gürbüz, A. Shala, S. Mustafa, Aytekin Erten
Kosovo is located in a key position in the central-west part of the Balkans providing an opportunity to understand the far-field effects of distributed intracontinental deformation caused by the Aegean extension in the south and Adriatic compression in the west. It is also situated along the NE-SW trending Shkodër-Pejë transverse zone, where the Dinarides and Albanides-Hellenides orogenic belts are juxtaposed. While the instrumental seismicity of the country indicates the activity of this fault zone and many others, the active faults in the country were not discussed in detail in the current literature. In this study, we analysed both the geomorphic and structural features of major mountain front faults in western Kosovo (i.e., Pejë, Istog, Krojmië and Prizen faults) to reveal the relative assessment of their activities and kinematic characters. Geomorphic and morphometric analyses of all the studied four different mountain fronts indicated high activity and tectonic uplift rates of over 0.5 mm/a. On the other hand, according to the collected kinematic data from the observed fault planes, all the studied faults are of normal character representing a dominance of NW-SE-directed extension in western Kosovo, which is most probably caused by the rollback of subducting slab in the Hellenic trench.
{"title":"Active tectonics of western Kosova: Insights from geomorphic 1 and structural analyses","authors":"A. Gürbüz, A. Shala, S. Mustafa, Aytekin Erten","doi":"10.19111/bulletinofmre.1186708","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1186708","url":null,"abstract":"Kosovo is located in a key position in the central-west part of the Balkans providing an opportunity to understand the far-field effects of distributed intracontinental deformation caused by the Aegean extension in the south and Adriatic compression in the west. It is also situated along the NE-SW trending Shkodër-Pejë transverse zone, where the Dinarides and Albanides-Hellenides orogenic belts are juxtaposed. While the instrumental seismicity of the country indicates the activity of this fault zone and many others, the active faults in the country were not discussed in detail in the current literature. In this study, we analysed both the geomorphic and structural features of major mountain front faults in western Kosovo (i.e., Pejë, Istog, Krojmië and Prizen faults) to reveal the relative assessment of their activities and kinematic characters. Geomorphic and morphometric analyses of all the studied four different mountain fronts indicated high activity and tectonic uplift rates of over 0.5 mm/a. On the other hand, according to the collected kinematic data from the observed fault planes, all the studied faults are of normal character representing a dominance of NW-SE-directed extension in western Kosovo, which is most probably caused by the rollback of subducting slab in the Hellenic trench.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41832205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-27DOI: 10.19111/bulletinofmre.1180869
Hamza Birinci, Kürşat Ergün, Aslı Zeynep Yavuzoğlu, Korhan Köse, Güniz Büşra Yalçin, Mustafa Berkay Doğan, Fatma Betül Karci, Murat Evren, Ayşe Güngör, B. S. Aydemir
Noises in marine seismic data are one of the biggest obstacles in seismic imaging. The most significant step in seismic data processing is the removal of seismic noise, which can be classified as instrument and background noise. Noise attenuation usually results in improved seismic interpretation by increasing the signal-to-noise ratio. In this study, we will focus on attenuating these seismic noises with several data processing techniques. A number of denoising examples describing swell, strumming/tugging, cavitation, which are background type noises, and streamer-mounted device noise (Nautilus), which is an instrument type noise, were illustrated by analysing a marine 3D seismic dataset which recorded by Oruc Reis Research Vessel in Black Sea project of MTA (Mineral Research and Exploration). This study was achieved by implementing f-x prediction filter (SPARC, DENOISE3D) and f-k filter (DWATT) in t-x domain, radon filter (RADATT) in Tau-P domain by the use of Geovation 2.0 software.
{"title":"Noise attenuation of a 3D marine seismic reflection dataset – A case study in the Southwest Black Sea region","authors":"Hamza Birinci, Kürşat Ergün, Aslı Zeynep Yavuzoğlu, Korhan Köse, Güniz Büşra Yalçin, Mustafa Berkay Doğan, Fatma Betül Karci, Murat Evren, Ayşe Güngör, B. S. Aydemir","doi":"10.19111/bulletinofmre.1180869","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1180869","url":null,"abstract":"Noises in marine seismic data are one of the biggest obstacles in seismic imaging. The most significant step in seismic data processing is the removal of seismic noise, which can be classified as instrument and background noise. Noise attenuation usually results in improved seismic interpretation by increasing the signal-to-noise ratio. In this study, we will focus on attenuating these seismic noises with several data processing techniques. A number of denoising examples describing swell, strumming/tugging, cavitation, which are background type noises, and streamer-mounted device noise (Nautilus), which is an instrument type noise, were illustrated by analysing a marine 3D seismic dataset which recorded by Oruc Reis Research Vessel in Black Sea project of MTA (Mineral Research and Exploration). This study was achieved by implementing f-x prediction filter (SPARC, DENOISE3D) and f-k filter (DWATT) in t-x domain, radon filter (RADATT) in Tau-P domain by the use of Geovation 2.0 software.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48865941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-26DOI: 10.19111/bulletinofmre.1180222
Haydar Güneş, Hüseyin Eren Obuz, H. Akçay, Çiğdem Kara, Ayşe Erdem
In this study, the production technology of rare-earth oxides from Eskişehir-Beylikova complex ore that contains barite, fluorite, rare-earth elements, and thorium were investigated. In this study, processes that can be used in production of thorium-free mixed rare earth oxides were tested. Roasting, leaching, solvent extraction and precipitation methods were used in this study, respectively. Roasting temperature and roasting duration were determined as 600 °C and 1 hour, respectively. The optimum leaching parameters were determined as 5 M HCl, 1 hour leaching duration, 1/3 solid/liquid ratio and 35 °C leaching temperature. In the obtained leach liquor, Adogen was 464 used for removal of iron and D2EHPA was used for the removal of thorium. As a result of solvent extraction stuies, the solution containing rare earth elements was precipitated under optimum conditions. After precipitation, the product contains 99.65% rare earth oxides.
{"title":"Production of rare-earth oxides from Eskişehir-Beylikova complex ores","authors":"Haydar Güneş, Hüseyin Eren Obuz, H. Akçay, Çiğdem Kara, Ayşe Erdem","doi":"10.19111/bulletinofmre.1180222","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1180222","url":null,"abstract":"In this study, the production technology of rare-earth oxides from Eskişehir-Beylikova complex ore that contains barite, fluorite, rare-earth elements, and thorium were investigated. In this study, processes that can be used in production of thorium-free mixed rare earth oxides were tested. Roasting, leaching, solvent extraction and precipitation methods were used in this study, respectively. Roasting temperature and roasting duration were determined as 600 °C and 1 hour, respectively. The optimum leaching parameters were determined as 5 M HCl, 1 hour leaching duration, 1/3 solid/liquid ratio and 35 °C leaching temperature. In the obtained leach liquor, Adogen was 464 used for removal of iron and D2EHPA was used for the removal of thorium. As a result of solvent extraction stuies, the solution containing rare earth elements was precipitated under optimum conditions. After precipitation, the product contains 99.65% rare earth oxides.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68447239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-03DOI: 10.19111/bulletinofmre.1154017
Mutlu Zeybek, M. Gül, F. Kačaroğlu, E. Karacan, A. Özbek
Caves evolution is controlled by lithological properties, discontinuities, water, climate, and physico-mechanical properties of soluble rocks, vegetation and human impact. This study investigates the cave formation in Upper Miocene-Pliocene clastic rock in Menteşe town of Muğla. The lithology, physico-mechanical properties and hydrogeologic factors of host rocks and morphology of the caves in Asar Hill and Damlam stream valley were examined. The caves are 1.47-9.71 m long, 2.24-19.36 m wide and 1.38-27 m high. Four joint sets and bedding planes affect the clastics in the Asar Hill area. Mudstones (low plasticity clay, sandy clay) are in soft-very soft rock, while conglomerate is in moderate-hard rock class. The mudstone removal has started the formation of the caves. The vegetation roots act as groundwater circulation paths in the Damlam stream area. Water has eroded mudstone and muddy matrix of conglomerate following cracks and led to the formation of the caves. Water infiltration may have led to stalactite, flowstone and travertine formation in Damlam stream caves. Possible cave collapse could threaten life and property in the Asar Hill area, and may cause the destruction of internal structures of the caves in the Damlam stream. Thus, precautionary measures such as continuous monitoring and protection must be taken in both cave areas.
{"title":"Caves in clastic rocks (Muğla, SW Türkiye)","authors":"Mutlu Zeybek, M. Gül, F. Kačaroğlu, E. Karacan, A. Özbek","doi":"10.19111/bulletinofmre.1154017","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1154017","url":null,"abstract":"Caves evolution is controlled by lithological properties, discontinuities, water, climate, and physico-mechanical properties of soluble rocks, vegetation and human impact. This study investigates the cave formation in Upper Miocene-Pliocene clastic rock in Menteşe town of Muğla. The lithology, physico-mechanical properties and hydrogeologic factors of host rocks and morphology of the caves in Asar Hill and Damlam stream valley were examined. The caves are 1.47-9.71 m long, 2.24-19.36 m wide and 1.38-27 m high. Four joint sets and bedding planes affect the clastics in the Asar Hill area. Mudstones (low plasticity clay, sandy clay) are in soft-very soft rock, while conglomerate is in moderate-hard rock class. The mudstone removal has started the formation of the caves. The vegetation roots act as groundwater circulation paths in the Damlam stream area. Water has eroded mudstone and muddy matrix of conglomerate following cracks and led to the formation of the caves. Water infiltration may have led to stalactite, flowstone and travertine formation in Damlam stream caves. Possible cave collapse could threaten life and property in the Asar Hill area, and may cause the destruction of internal structures of the caves in the Damlam stream. Thus, precautionary measures such as continuous monitoring and protection must be taken in both cave areas.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47538997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-21DOI: 10.19111/bulletinofmre.1146674
Y. Yılmaz
The Denizli region is located to the east of the Buldan horst. Although they follow the same trends as the Büyük Menderes and Gediz grabens, the Denizli region has undergone semi-independent evolution during the Quaternary. The essential morphotectonic elements of the area are the Denizli basin and the surrounding Babadağ and the Güzelpınar horsts. The Babadağ horst is the most distinct morphotectonic element of the region. It is bounded in the North by the Denizli fault, a listric normal fault, possibly a major detachment fault. The Laodicea and Güzelpınar horsts located within the downthrown block of the fault may be regarded as antithetic structures.
代尼兹利地区位于约旦高地以东。尽管德尼兹利地区与b yy k Menderes和Gediz地堑遵循相同的趋势，但在第四纪经历了半独立的演化。该地区的基本形态构造要素是Denizli盆地及其周围的babadaku和Güzelpınar地脉。巴巴达霍斯特是该地区最独特的形态构造元素。它在北部被德尼兹利断层所包围，这是一条斜向正断层，可能是一条主要的拆离断层。老底嘉断层和Güzelpınar断层可以看作是对立的构造。
{"title":"Some thoughts on the morphotectonic development of the Denizli region Basic","authors":"Y. Yılmaz","doi":"10.19111/bulletinofmre.1146674","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1146674","url":null,"abstract":"The Denizli region is located to the east of the Buldan horst. Although they follow the same trends as the Büyük Menderes and Gediz grabens, the Denizli region has undergone semi-independent evolution during the Quaternary. The essential morphotectonic elements of the area are the Denizli basin and the surrounding Babadağ and the Güzelpınar horsts. The Babadağ horst is the most distinct morphotectonic element of the region. It is bounded in the North by the Denizli fault, a listric normal fault, possibly a major detachment fault. The Laodicea and Güzelpınar horsts located within the downthrown block of the fault may be regarded as antithetic structures.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45305472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.19111/bulletinofmre.1139294
Bekir Başkurt, Mete Tayhan Serdengeçti, K. Özçelik, H. Baştürkçü
Slag, which is now considered as a secondary source, attracts attention due to the metallic values they contain. Copper slags having economical operating grades in terms of Zn, Cu, Ce, Ni, Co, Mo, and V show complex mineralogy due to its thermal processing history. Various methods for the recovery of copper and other precious metals from this byproduct have been studied, and there are many operating flotation plants in industrial scale. However, in cases where physical or physo-chemical mineral processing methods are not sufficient, hydrometallurgical methods are applied. In this study, flotation was applied to copper slag with 0.9% Cu grade. Copper recovery and concentrate grade were found as around 40 and 22.7% Cu, respectively. Further, metal extractions were examined by conducting direct leaching tests. Gel formation was observed, when H2SO4was used in the leach process, therefore, the leach parameters were investigated using HCl. Cu and Ce extractions of around 70-80% were reached as a result of a test performed for 2 hours with the addition of 25 g/L H2O2 at a rate of 20-25% solids and 300 g/L HCl concentration. When the relationship of dissolved metals with each other wasexamined, dissolution behavior of Cu and Ce was quite similar to Al dissolution (R2=0.9).
{"title":"Recovery Cu ad Ce from copper slag by using flotation and chemical methods","authors":"Bekir Başkurt, Mete Tayhan Serdengeçti, K. Özçelik, H. Baştürkçü","doi":"10.19111/bulletinofmre.1139294","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1139294","url":null,"abstract":"Slag, which is now considered as a secondary source, attracts attention due to the metallic values they contain. Copper slags having economical operating grades in terms of Zn, Cu, Ce, Ni, Co, Mo, and V show complex mineralogy due to its thermal processing history. Various methods for the recovery of copper and other precious metals from this byproduct have been studied, and there are many operating flotation plants in industrial scale. However, in cases where physical or physo-chemical mineral processing methods are not sufficient, hydrometallurgical methods are applied. In this study, flotation was applied to copper slag with 0.9% Cu grade. Copper recovery and concentrate grade were found as around 40 and 22.7% Cu, respectively. Further, metal extractions were examined by conducting direct leaching tests. Gel formation was observed, when H2SO4was used in the leach process, therefore, the leach parameters were investigated using HCl. Cu and Ce extractions of around 70-80% were reached as a result of a test performed for 2 hours with the addition of 25 g/L H2O2 at a rate of 20-25% solids and 300 g/L HCl concentration. When the relationship of dissolved metals with each other wasexamined, dissolution behavior of Cu and Ce was quite similar to Al dissolution (R2=0.9).","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47405919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-01DOI: 10.19111/bulletinofmre.1139009
H. Vural, Şakir Özkurt
Anatolia’s geographical location as a land bridge between Europe, Asia, and Africa, makes it an important passage for mammal migrations, with a rich fossil potential. However, detailed scientific studies on the Neogene paleogeography of Anatolia are scarce. Rodentia is among the major mammal groups generally adapting to different habitat types and rapidly evolving with the changing geography. Investigating this group provides data to increase the accuracy of ecological analyses. We selected Rodentia fossils from the Miocene excavation sites with published papers, and examined specimens of 14 families from 106 localities. Cricetidae, Muridae, Gliridae, and Sciuridae were found to be most dominant rodent families in Anatolia during the Early Miocene, indicating a high humidity, whereas ecological changes towards the end of this epoch led to a complex formation in the biogeography of micromammals. In the Middle Miocene, a 65% decrease in Muridae, the emergence of Eomyidae, and a significant increase in Spalacidae suggest a climate shift, towards tropical or semi-tropical conditions. In the Late Miocene, Muridae regaining its maximum level and becoming the most crowded family may indicate an unexpected rise in humidity, while the stable prevalence of Eomyidae and Castoridae point to the continuity of aquatic environments and humidity.
{"title":"Paleoecological investigation of the Miocene (23.03-5.33 mya) rodents (Mammalia: Rodentia) in Anatolia","authors":"H. Vural, Şakir Özkurt","doi":"10.19111/bulletinofmre.1139009","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1139009","url":null,"abstract":"Anatolia’s geographical location as a land bridge between Europe, Asia, and Africa, makes it an important passage for mammal migrations, with a rich fossil potential. However, detailed scientific studies on the Neogene paleogeography of Anatolia are scarce. Rodentia is among the major mammal groups generally adapting to different habitat types and rapidly evolving with the changing geography. Investigating this group provides data to increase the accuracy of ecological analyses. We selected Rodentia fossils from the Miocene excavation sites with published papers, and examined specimens of 14 families from 106 localities. Cricetidae, Muridae, Gliridae, and Sciuridae were found to be most dominant rodent families in Anatolia during the Early Miocene, indicating a high humidity, whereas ecological changes towards the end of this epoch led to a complex formation in the biogeography of micromammals. In the Middle Miocene, a 65% decrease in Muridae, the emergence of Eomyidae, and a significant increase in Spalacidae suggest a climate shift, towards tropical or semi-tropical conditions. In the Late Miocene, Muridae regaining its maximum level and becoming the most crowded family may indicate an unexpected rise in humidity, while the stable prevalence of Eomyidae and Castoridae point to the continuity of aquatic environments and humidity.","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47854450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.19111/bulletinofmre.1138208
E. Yalcinkaya, M. Bohnhoff, H. Alp, Stephen Bentz, A. Pınar, F. Alver, Ö. Kılıçarslan, Burçin Didem Tamtaş, Burçak Görgün
The Ganos Fault MONGAN earthquake monitoring network data presents significant opportunities and challenges for earthquake detection, location and magnitude calculations, source mechanism solutions, and discovery of fault zone waves. This study consists mostly of primary data analysis and seismological evaluations. While stations located in a local area allow the discovery of earthquakes at micro earthquake level, they create significant difficulties in determining the source parameters of these earthquakes. Extracting small earthquakes from continuous data shows that special strategies need to be developed. Network data revealed the presence of many earthquakes with magnitude M
{"title":"Evaluation of current earthquake activity on the Ganos Fault: MONGAN network test analysis","authors":"E. Yalcinkaya, M. Bohnhoff, H. Alp, Stephen Bentz, A. Pınar, F. Alver, Ö. Kılıçarslan, Burçin Didem Tamtaş, Burçak Görgün","doi":"10.19111/bulletinofmre.1138208","DOIUrl":"https://doi.org/10.19111/bulletinofmre.1138208","url":null,"abstract":"The Ganos Fault MONGAN earthquake monitoring network data presents significant opportunities and challenges for earthquake detection, location and magnitude calculations, source mechanism solutions, and discovery of fault zone waves. This study consists mostly of primary data analysis and seismological evaluations. While stations located in a local area allow the discovery of earthquakes at micro earthquake level, they create significant difficulties in determining the source parameters of these earthquakes. Extracting small earthquakes from continuous data shows that special strategies need to be developed. Network data revealed the presence of many earthquakes with magnitude M","PeriodicalId":42748,"journal":{"name":"Bulletin of the Mineral Research and Exploration","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41992570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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