A. Jõeleht, K. Kirsimäe, I. Kukkonen, V. Rastenienė, A. Shogenova, S. Šliaupa, A. Zabele
{"title":"Thermal conductivity of Cambrian siliciclastic rocks from the Baltic basin","authors":"A. Jõeleht, K. Kirsimäe, I. Kukkonen, V. Rastenienė, A. Shogenova, S. Šliaupa, A. Zabele","doi":"10.3176/geol.2002.1.01","DOIUrl":"https://doi.org/10.3176/geol.2002.1.01","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"8 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116967912","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}
A review of the achievements made during the last decade in the study of the energy accumulation and transformation processes in quartz and alkali feldspars, used as natural palaeo- dosimeters, is given. It is shown how the obtained results have contributed to the application of optical dating through the use of alkali feldspars, finding more effective spectral regions of stimulation, and choice of optimal powers and duration of the stimulating impulses. The strong and weak points of the measuring procedures used in optical dating are analysed and the corresponding new high- sensitivity apparatus is introduced. It appears that, in the case of a reasonable choice of the parameters of stimulating impulses, the presently used multiple-aliquots method is in every way competitive with the new methods.
{"title":"ADVANCES IN THE LUMINESCENCE DATING: THE OPTICALLY STIMULATED LUMINESCENCE BASED PROCEDURES AND THEIR PHYSICAL BACKGROUND","authors":"G. Hütt, I. Jaek","doi":"10.3176/geol.2001.4.02","DOIUrl":"https://doi.org/10.3176/geol.2001.4.02","url":null,"abstract":"A review of the achievements made during the last decade in the study of the energy accumulation and transformation processes in quartz and alkali feldspars, used as natural palaeo- dosimeters, is given. It is shown how the obtained results have contributed to the application of optical dating through the use of alkali feldspars, finding more effective spectral regions of stimulation, and choice of optimal powers and duration of the stimulating impulses. The strong and weak points of the measuring procedures used in optical dating are analysed and the corresponding new high- sensitivity apparatus is introduced. It appears that, in the case of a reasonable choice of the parameters of stimulating impulses, the presently used multiple-aliquots method is in every way competitive with the new methods.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123528142","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}
{"title":"QUATERNARY DEPOSITS IN THE BALTIC SEA WEST OF ESTONIA - PRELIMINARY RESULTS OF A SEISMIC REFLECTION SURVEY","authors":"R. Noormets","doi":"10.3176/geol.1994.1.02","DOIUrl":"https://doi.org/10.3176/geol.1994.1.02","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121920852","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}
H. Heinsalu, K. Jegonjan, T. Kurvits, K. Mens, I. Puura, V. Viira
{"title":"CAMBRIAN–ORDOVICIAN BOUNDARY BEDS IN THE PAKRI CAPE SECTION, NW ESTONIA","authors":"H. Heinsalu, K. Jegonjan, T. Kurvits, K. Mens, I. Puura, V. Viira","doi":"10.3176/geol.1996.1.02","DOIUrl":"https://doi.org/10.3176/geol.1996.1.02","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536107","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}
. Sediments with the squamations of Phlebolepis elegans Pander at Himmiste-Kuigu were formed in a lagoon of the Palaeobaltic Sea, situated in the tropical realm during Himmiste time of the Paadla Age, Ludlow, late Silurian. From the micro-and macrolithological features of the rocks, and the distribution of facies during Himmiste time it is concluded that the thelodonts died in a shallow depression on the bottom of the lagoon behind the reef belt towards the land; the depression acted as a trap during low tide. Unfavourable conditions, primarily the lack of oxygen in warm and shallow water, caused the perishing of the Phlebolepis shoal. Very low wave activity prevented post-mortem disintegration of the squamation and rapid conservation in mud saved the exoskeletons from scattering.
{"title":"Sedimentation of the Himmiste-Kuigu fish bed (Ludlow of Estonia) and taphonomy of the Phlebolepis elegans Pander (Thelodonti) shoal","authors":"T. Märss, Helle Perens, Tiiu Klaos","doi":"10.3176/geol.2003.4.04","DOIUrl":"https://doi.org/10.3176/geol.2003.4.04","url":null,"abstract":". Sediments with the squamations of Phlebolepis elegans Pander at Himmiste-Kuigu were formed in a lagoon of the Palaeobaltic Sea, situated in the tropical realm during Himmiste time of the Paadla Age, Ludlow, late Silurian. From the micro-and macrolithological features of the rocks, and the distribution of facies during Himmiste time it is concluded that the thelodonts died in a shallow depression on the bottom of the lagoon behind the reef belt towards the land; the depression acted as a trap during low tide. Unfavourable conditions, primarily the lack of oxygen in warm and shallow water, caused the perishing of the Phlebolepis shoal. Very low wave activity prevented post-mortem disintegration of the squamation and rapid conservation in mud saved the exoskeletons from scattering.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128682602","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}
A. Blieck, Anne-Marie Candilier, S. Loboziak, E. Mark-Kurik
{"title":"FACIES DISTRIBUTION OF EARLY CAMBRIAN MOLLUSCS IN ESTONIA","authors":"A. Blieck, Anne-Marie Candilier, S. Loboziak, E. Mark-Kurik","doi":"10.3176/geol.1999.2.02","DOIUrl":"https://doi.org/10.3176/geol.1999.2.02","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129571859","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}
{"title":"Early Cambrian tubular fossils of the genus Onuphionella from Estonia","authors":"K. Mens","doi":"10.3176/geol.2003.2.02","DOIUrl":"https://doi.org/10.3176/geol.2003.2.02","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127445265","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}
{"title":"Harmonic and disharmonic soil-type interference on Late Pleistocene and Holocene sediments in Northeast Germany","authors":"G. Reuter","doi":"10.3176/geol.2005.2.01","DOIUrl":"https://doi.org/10.3176/geol.2005.2.01","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"25 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125676062","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}
{"title":"EARLY DIAGENETIC CHALCOPYRITE OCCURRENCES IN TELYCHIAN MARINE RED BEDS OF WEST ESTONIA AND WEST LATVIA","authors":"T. Kallaste, E. Kiipli, T. Kiipli","doi":"10.3176/geol.2000.4.04","DOIUrl":"https://doi.org/10.3176/geol.2000.4.04","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"45 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132433727","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}
This paper presents the results of geomorphological investigations of bowl-shaped hollows in "Rezerwat Meteoryt Morasko" - Morasko Meteorite Nature Reserve - of Poland and of mineralogical studies of recently found meteorites and micrometeorites. The meteorite shower fell between 5000 and 3500 BP, forming craters in the Morasko area. The age interval for this event was estimated by earlier palynological and 14 C studies. The Morasko meteorite is an iron type octahedrite (IAB group) which shows strong reheating effects. The investigated area is unique, because the material from space and the geomorphological effects of its fall can be identified there.
{"title":"Mineralogy of Morasko meteorite and the structure of the craters","authors":"W. Stankowski, Kevin Klimm, Manfred Schliestedt","doi":"10.3176/geol.2002.4.03","DOIUrl":"https://doi.org/10.3176/geol.2002.4.03","url":null,"abstract":"This paper presents the results of geomorphological investigations of bowl-shaped hollows in \"Rezerwat Meteoryt Morasko\" - Morasko Meteorite Nature Reserve - of Poland and of mineralogical studies of recently found meteorites and micrometeorites. The meteorite shower fell between 5000 and 3500 BP, forming craters in the Morasko area. The age interval for this event was estimated by earlier palynological and 14 C studies. The Morasko meteorite is an iron type octahedrite (IAB group) which shows strong reheating effects. The investigated area is unique, because the material from space and the geomorphological effects of its fall can be identified there.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"42 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132495761","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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