Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Wolfgang Weitschat"'
Publikováno v:
Annales Societatis Geologorum Poloniae. :151-175
The Bravaisberget Formation of southern Spitsbergen (the youngest formation of the Sassendalen Group; Middle Triassic–Carnian) comprises a succession of organic-rich and sandy phosphogenic deposits that developed in a marginal part of the Svalbard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4ec61bbc5fd0b05bb663aeb4996f351
https://doi.org/10.14241/asgp.2014.005
https://doi.org/10.14241/asgp.2014.005
Publikováno v:
GFF. 132:161-166
The connecting ring in the Recent Nautilus is composed of two layers: a fibrous, organic inner layer, and a porous, spherulitic-prismatic outer layer. The organic layer is an uncalcified continuation from the nacreous layer of the septal neck. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db173e02f43b76c01557f1c7c3232929
https://doi.org/10.1080/11035897.2010.510204
https://doi.org/10.1080/11035897.2010.510204
Publikováno v:
Geological Society of America Bulletin. 120:1305-1325
A bio-magnetostratigraphy for the Lower Triassic is constructed, using the ammonoid biostratigraphy from arctic Boreal successions. Combined thermal and alternating field demagnetisation determines the Triassic magnetic field polarity in 86% of speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5677fa36399ed5b85df19dcb9b4f5f6e
https://doi.org/10.1130/b26103.1
https://doi.org/10.1130/b26103.1
Publikováno v:
Polar Research. 27:360-371
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0f825920309b43fcac827f239cad090
https://doi.org/10.1111/j.1751-8369.2008.00084.x
https://doi.org/10.1111/j.1751-8369.2008.00084.x
Autor:
Atle Mørk, Hans Arne Nakrem, Mark W. Hounslow, Wolfgang Weitschat, Michael J. Orchard, Tyler W. Beatty
Publikováno v:
Polar Research. 27:523-539
Conodont faunas are described from Triassic sections of Svalbard, and their occurrences are locally correlated with established ammonoid zones. With a synthesis of previous conodont-based publications, the current work presents a taxonomically up-to-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29d0f5f66773a55c084e0edc72a3685a
https://doi.org/10.1111/j.1751-8369.2008.00076.x
https://doi.org/10.1111/j.1751-8369.2008.00076.x
Publikováno v:
Journal of the Geological Society. 164:581-597
Palaeomagnetic and biostratigraphic data were obtained for the latest Ladinian and most of the Carnian (Botneheia Formation to basal Kapp Toscana Group), from two sections in central Spitsbergen (Svalbard archipelago). Thermal and alternating field (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7a65b268ef434e6c47a0c8e7a033f9a
https://doi.org/10.1144/0016-76492005-184
https://doi.org/10.1144/0016-76492005-184
Autor:
Dietmar Keyser, Wolfgang Weitschat
Publikováno v:
Hydrobiologia. 538:107-114
Ostracods were found in two pieces of Baltic amber for the first time. The animals belong to the freshwater genus Cyclocypris. Since Baltic amber was formed during Eocene times in southern Scandinavia, the age of the specimens is estimated at 42–54
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51c9b9b01f5bd84d15d7bb38199a765c
https://doi.org/10.1007/s10750-004-5941-5
https://doi.org/10.1007/s10750-004-5941-5
Autor:
Hans Arne Nakrem, Geir Elvebakk, Atle Mørk, Jorunn Os Vigran, Mark W. Hounslow, Arne W. Forsberg, Wolfgang Weitschat
Publikováno v:
Polar Research; Vol 18, No 1 (1999); 51-82
The Vikinghøgda Formation (250 m) is defined with a stratotype in Deltadalen-Vikinghøgda in central Spitsbergen. The Vikinghøgda Formation replaces the Vardebukta and Sticky Keep Formations of Buchan et al. (1965) and the lower part of the Barents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29f7fc9c33243d5ac276f586a84cb6a2
https://doi.org/10.1111/j.1751-8369.1999.tb00277.x
https://doi.org/10.1111/j.1751-8369.1999.tb00277.x
Publikováno v:
Palynology. 22:89-141
Material from shallow cores drilled through the uplifted and truncated deposits near the Svalis Dome in the Barents Sea contains Lower and Middle Triassic palynomorphs and ammonoids. Eight miospore assemblage zones have been established in this paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf6ea9248c71efaa0af3436a0fe4a863
https://doi.org/10.1080/01916122.1998.9989505
https://doi.org/10.1080/01916122.1998.9989505
Publikováno v:
Lethaia. 29:225-235
The Triassic ammonoid Czekanowskites rieberi displays a covariation of morphological charac ters, which is rather common in ammonoids. Its morphological spectrum ranges from laterally compressed, involute, weakly ribbed forms to depressed, semiinvolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef37d9fd9f5b963dbf48f320b1aa954
https://doi.org/10.1111/j.1502-3931.1996.tb01655.x
https://doi.org/10.1111/j.1502-3931.1996.tb01655.x