Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Kalle Suuroja"'
Publikováno v:
Bulletin of the Geological Society of Finland, Vol 85, Iss 1, Pp 83-101 (2013)
Kärdla and Neugrund are two Early Palaeozoic offshore impact structures located some 50 km apart along the Estonian coast of the Baltic Sea. They share many similarities but differing features are also found. The Kärdla impact structure is located
Autor:
M. Konsa, A. Kärki, Kalle Kirsimäe, A. Kleesment, Väino Puura, Christian Koeberl, Sten Suuroja, J. Kivisilla, Juho Kirs, Kalle Suuroja, Heinz Huber, Ulla Preeden
Publikováno v:
Meteoritics & Planetary Science. 39:425-451
The Kardla crater is a 4 km-wide impact structure of Late Ordovician age located on Hiiumaa Island, Estonia. The 455 Ma-old buried crater was formed in shallow seawater in Precambrian crystalline target rocks that were covered with sedimentary rocks.
Autor:
Kalle Kirsimäe, A. Kärki, Väino Puura, Sten Suuroja, Kalle Suuroja, Juho Kirs, Maile Polikarpus
Publikováno v:
Meteoritics & Planetary Science. 37:449-457
The well-preserved Krdla impact crater, on Hiiumaa Island, Estonia, is a 4-km diameter structure formed in a shallow Ordovician sea about 455 Ma ago into a target composed of thin (~150 m) unconsolidated sedimentary layer above a crystalline basement
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 49:1145-1155
Kardla impact crater, 4 km in diameter, was formed in the early Caradoc (Late Ordovician) in the Baltoscandian shelf sea, a sediment-starved temperate-water carbonate basin. The Upper Ordovician post-impact sediments that cover the Kardla crater are
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 49:1121-1144
The Kardla marine impact structure (Estonia, 58°58′N, 22°46′E) was formed at 455 Ma (Upper Ordovician), in a shallow epicontinental sea some tens of kilometres from the land and erosion area. The iron-rich projectile about 200 m in diameter app
Autor:
Kalle Suuroja, Väino Puura
Publikováno v:
Tectonophysics. 216:143-156
The buried and well preserved Kardla crater in Estonia (Southern Fennoscandia) (58°59Ń, 22°40E), with a diameter of approximately 4 km, was discovered in 1967. The subsurface structure of the crater has been studied by gravity anomaly measurements
Autor:
Sten Suuroja, Kalle Suuroja
Publikováno v:
Impact Studies ISBN: 3540257357
The Kardla impact occurred at ca. 455 Ma (Upper-Ordovician, Caradoc) in a shallow (ca. 100 m) epicontinental sea not far (ca. 100 km) from the erosion area on the Baltic Shield (Grahn et al. 1996). The explosion of the meteorite ca. 200 m in diameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bf499165f69393f1fe907bd44ab1e02
https://doi.org/10.1007/3-540-25736-5_14
https://doi.org/10.1007/3-540-25736-5_14
Autor:
Väino Puura, Sten Suuroja, Kalle Kirsimäe, Kalle Suuroja, A. Kleesment, A. Kärki, Jüri Plado, M. Konsa, Juho Kirs, M. Niin
Publikováno v:
Impacts and the Early Earth ISBN: 3540670920
The 4-km-wide and 0.5-km-deep Kardla Crater, presently buried under a thin sequence of Upper Ordovician limestone, was formed in a complex target: the crystalline basement was covered by about 170 m of poorly consolidated Lower to Middle Ordovician a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10b77c9ad34e83479933ecf58eeaa1f4
https://doi.org/10.1007/bfb0027770
https://doi.org/10.1007/bfb0027770
Autor:
Kalle Suuroja, Sten Suuroja
Publikováno v:
Impacts and the Early Earth ISBN: 3540670920
The Neugrund Bank is situated on the southern side of the entrance of the Gulf of Finland (59°20′N; 23°31′E) between Osmussaar and Krass islands. It is a shoal of a very peculiar multi-ring shape. In the coastal and offshore area of North-Weste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60cd4d0c8708df70d92d1349e12ea7bb
https://doi.org/10.1007/bfb0027769
https://doi.org/10.1007/bfb0027769
Autor:
Sten Suuroja, Kalle Suuroja
Publikováno v:
Cratering in Marine Environments and on Ice ISBN: 9783642073762
The Early Cambrian (approximately 535 Ma) Neugrund marine impact structure is located on the southern side of the entrance to the Gulf of Finland, immediately eastward of Osmussaar Island, Estonia. The origin of the structure was noted already in 199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f407f85d808e7dc00b87a8aa111e91c0
https://doi.org/10.1007/978-3-662-06423-8_5
https://doi.org/10.1007/978-3-662-06423-8_5