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EVENTS IN THE CONODONT HISTORY DURING THE SILURIAN IN ESTONIA 爱沙尼亚志留纪牙形石历史上的事件
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.1993.2.03
P. Männik, V. Viira
{"title":"EVENTS IN THE CONODONT HISTORY DURING THE SILURIAN IN ESTONIA","authors":"P. Männik, V. Viira","doi":"10.3176/geol.1993.2.03","DOIUrl":"https://doi.org/10.3176/geol.1993.2.03","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"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":"127795031","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}
引用次数: 2
THE LLANDOVERY-WENLOCK BOUNDARY IN THE RUSSIAN ARCTIC 俄罗斯北极的陆海-温洛克边界
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.2000.2.03
P. Männik, A. Antoshkina, Tatyana M. Beznosova
{"title":"THE LLANDOVERY-WENLOCK BOUNDARY IN THE RUSSIAN ARCTIC","authors":"P. Männik, A. Antoshkina, Tatyana M. Beznosova","doi":"10.3176/geol.2000.2.03","DOIUrl":"https://doi.org/10.3176/geol.2000.2.03","url":null,"abstract":". The position of the Llandevery—Wenlock boundary in the Timan—northern Ural region and Severnaya Zemlya has been under discussion for a long time. Datings based on different groups of fauna seem to be inconsistent; conodonts indicate that in both regions this boundary lies considerably higher in the sequence than considered until now. The conodont datings agree well with correlations based on sea level fluctuations.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"2 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":"129057419","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}
引用次数: 5
Effect of the GRACE satellite mission on gravity field studies in Fennoscandia and the Baltic Sea region GRACE卫星任务对Fennoscandia和波罗的海地区重力场研究的影响
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.2004.2.01
A. Ellmann
{"title":"Effect of the GRACE satellite mission on gravity field studies in Fennoscandia and the Baltic Sea region","authors":"A. Ellmann","doi":"10.3176/geol.2004.2.01","DOIUrl":"https://doi.org/10.3176/geol.2004.2.01","url":null,"abstract":"It is customary to utilize the Earth's artificial satellites for detecting long-wavelength components of the Earth's gravity field. The tracking data of the GRACE twin-satellites are the basis of t ...","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"136 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":"133532164","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}
引用次数: 4
NEW DATA ON CONODONTS, BRACHIOPODS, AND OSTRACODES FROM THE STRATOTYPES OF THE ILMEN AND BUREGI BEDS (FRASNIAN, MAIN DEVONIAN FIELD) 伊尔曼和布里吉地层层型中牙形虫、腕足类和介形虫的新资料(frasen，主泥盆系)
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.1997.4.02
I. Evdokimova, E. Sokiran, Andrey V. Zhuravlev
{"title":"NEW DATA ON CONODONTS, BRACHIOPODS, AND OSTRACODES FROM THE STRATOTYPES OF THE ILMEN AND BUREGI BEDS (FRASNIAN, MAIN DEVONIAN FIELD)","authors":"I. Evdokimova, E. Sokiran, Andrey V. Zhuravlev","doi":"10.3176/geol.1997.4.02","DOIUrl":"https://doi.org/10.3176/geol.1997.4.02","url":null,"abstract":". The authors restudied biostratigraphically the stratotypes of the Ilmen Beds and Buregi Beds distinguished by R. Hecker in the Frasnian of the central part of the Main Devonian Field (Lake Ilmen region, Russian Platform). Abundant brachiopod, ostracode, and conodont associations were obtained and one new ostracode species Milanovskya bicristata was described. Both the Ilmen (mainly terrigenous) and Buregi (carbonate) beds correspond to relatively shallow-water facies. Conodont associations permit us to correlate these beds with the Middle-Upper asymmetricus Zone and to recognize two local zones (the Polygnathus pollocki Zone and the P. efimovae Zone). Ostracode, brachiopod, and conodont faunas observed in the Ilmen and Buregi beds resemble the Semilukian ones of the Central Devonian Field. Facial, taphonomical, and some palaeoecological observations allow for the reconstruction of the palaeolandscape succession which was caused by regional sea-level changes.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"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":"130734982","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}
引用次数: 8
Holocene buried organic sediments in Estonia 爱沙尼亚全新世埋藏有机沉积物
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.2006.4.03
L. Saarse, J. Vassiljev, A. Miidel, E. Niinemets
{"title":"Holocene buried organic sediments in Estonia","authors":"L. Saarse, J. Vassiljev, A. Miidel, E. Niinemets","doi":"10.3176/geol.2006.4.03","DOIUrl":"https://doi.org/10.3176/geol.2006.4.03","url":null,"abstract":"An overview of 85 sites of Holocene buried organic sediments in Estonia is presented. This number includes 45 sites of pre-Ancylus and Ancylus age, which were buried during the Ancylus transgression, 31 sites of pre-Litorina and Litorina age, buried under Litorina transgression sediments, and 9 sites formed after post-Litorina time and mostly covered by aeolian sand. According to radiocarbon dates, the Ancylus Lake transgression started about 9500 yr BP (10 800 cal BP), and culminated several hundred years later. Around 9000 yr BP (10 100 cal BP) a rather rapid regression followed. Its magnitude reached up to 30 m in the areas of rapid uplift. Pollen spectra of these beds are characterized by a high frequency of Pinus pollen, which seems to be typical of the coastal waterbodies of this age and confuses determination of their Preboreal age. 14 C dates of Litorina buried beds differ considerably. We have evidence that the Litorina transgression started about 7500-7000 yr BP (8300-7800 cal BP) and culminated at different times in different regions. Pollen spectra of Litorina buried organic strata vary considerably between sites; however, their Atlantic age is easily discernible. The simulated isobases of the Ancylus Lake and Litorina Sea shorelines and organic beds showed discrepancy in the surroundings of Parnu and Narva bays.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"44 6 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":"130740069","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}
引用次数: 20
Intraspecific variation in Wenlock tabulate corals from Saaremaa (Estonia) and its taxonomic implications 爱沙尼亚萨雷马Wenlock表状珊瑚种内变异及其分类学意义
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.2006.1.02
M. Mõtus
{"title":"Intraspecific variation in Wenlock tabulate corals from Saaremaa (Estonia) and its taxonomic implications","authors":"M. Mõtus","doi":"10.3176/geol.2006.1.02","DOIUrl":"https://doi.org/10.3176/geol.2006.1.02","url":null,"abstract":"Different aspects of intraspecific variation in Wenlock tabulate corals are discussed. Intracorallum and intraspecific variation is demonstrated in specimens within the collection from one locality. The diagnostic characters of Halysites senior Klaamann and Catenipora oriens Klaamann and those of Paleofavosites secundus (Klaamann) and Favosites jaaniensis Sokolov overlap and therefore these species are regarded as synonyms. Propora raricellata Sokolov is a possible synonym of P. tubulata (Lonsdale), because the character differentiating these species is variable.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"39 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":"131930837","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}
引用次数: 5
FELDSPARS IN THE TERRIGENOUS SEDIMENTARY ROCKS OF ESTONIA ACCORDING TO X-RAY STRUCTURAL ANALYSIS 根据x射线结构分析爱沙尼亚陆源沉积岩中的长石
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.1994.1.04
T. Kallaste, E. Pirrus
{"title":"FELDSPARS IN THE TERRIGENOUS SEDIMENTARY ROCKS OF ESTONIA ACCORDING TO X-RAY STRUCTURAL ANALYSIS","authors":"T. Kallaste, E. Pirrus","doi":"10.3176/geol.1994.1.04","DOIUrl":"https://doi.org/10.3176/geol.1994.1.04","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":"134562103","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}
引用次数: 1
A NEW SPECIES MEGALOMOIDEA WALLISERI (BIVALVIA) FROM THE SILURIAN OF ESTONIA 文章标题爱沙尼亚志留纪双壳科大壳科walliseri一新种
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.1993.3.04
M. Isakar, I. Sinicyna
{"title":"A NEW SPECIES MEGALOMOIDEA WALLISERI (BIVALVIA) FROM THE SILURIAN OF ESTONIA","authors":"M. Isakar, I. Sinicyna","doi":"10.3176/geol.1993.3.04","DOIUrl":"https://doi.org/10.3176/geol.1993.3.04","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"24 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133043326","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}
引用次数: 1
Glauconitic rocks in the Baltic area: estimation of specific surface 波罗的海地区海绿石岩:比表面积的估计
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.2003.2.01
I. Fabricius, U. Korsbech, V. Rastenienė, A. Shogenova, S. Šliaupa
{"title":"Glauconitic rocks in the Baltic area: estimation of specific surface","authors":"I. Fabricius, U. Korsbech, V. Rastenienė, A. Shogenova, S. Šliaupa","doi":"10.3176/geol.2003.2.01","DOIUrl":"https://doi.org/10.3176/geol.2003.2.01","url":null,"abstract":"","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"1 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":"133817714","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}
引用次数: 1
A NEW VERSION OF THE HOLOCENE STRATIGRAPHY IN ESTONIA 爱沙尼亚全新世地层学的新版本
Proceedings of the Estonian Academy of Sciences. Geology Pub Date : 1900-01-01 DOI: 10.3176/geol.1995.4.01
IN Estonia, A. Raukas, L. Saarse, S. Veski
{"title":"A NEW VERSION OF THE HOLOCENE STRATIGRAPHY IN ESTONIA","authors":"IN Estonia, A. Raukas, L. Saarse, S. Veski","doi":"10.3176/geol.1995.4.01","DOIUrl":"https://doi.org/10.3176/geol.1995.4.01","url":null,"abstract":". A new modified Holocene stratigraphical chart for the continental and marine deposits is presented. The chronozone boundaries are correlated with those of the Nordic countries and instead of pollen zones pollen assemblage zones are proposed. As the latter are time-transgressive, they are not strictly bound up with the chronozones. For the marine deposits it is suggested to use local units until the acceptance of the generally approved standard subdivision.","PeriodicalId":237994,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Geology","volume":"24 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":"133966326","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}
引用次数: 12
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