Bulletin Volume 23 – 1974

Content of Volume 23/1-2

CHRISTENSEN, WALTER KEGEL:
Morphometric analysis of Actinocamax plenus from England
s. 1

BERGSTRÖM, S. M. and NILSSON, R.:
Age and correlation of theMiddle Ordovician bentonites on Bornholm
s. 27

REX, D. C. and GLEDHILL, A.:
Reconnaissance geochronology of the infractrustal rocks of Flyverfjord, Scoresby Sund, East Greenland

s. 49

MAALØE, S.:
Origin of the low pressure – higji temperature character of predominant tholeiitic compositions

s. 55

SiMONARSON, L. A.:
Recent Cyrtodaria and its fossil occurrence in Greenland

s. 65

SPIRO, B. F.:
Ultrastructure of Acropora
s. 76

POULSEN, V.:
Olenellacean trilobites from eastern North Greenland

s. 79

JØRGENSEN, N. O.:
A new ostracode species from Maastrichtian white chalk of Denmark

s. 102

CHRISTENSEN, L and ULLEBERG, K.:
Sediments and forammifers of the Middle Oligocène Viborg Formation, Denmark

s.109

THOMSEN, E.:
Maastrichtian and Danian fades pattern on the Ringkøbing-Fyn High, Denmark
s. 118

KALSBEEK, F.:
U, Th and K contents and metamorphism of Archaean rocks from South-West Greenland

s. 124

ENGELL, J. and PEDERSEN, S.:
Rubidium-strontium whole rock isochron age determination from the Bangs Havn intrusion. South Greenland

s. 130

WAGNER, P, and KOCH, B. E.:
Fossil roots of Sequoia type from two localities of the Miocene delta deposits of the Søby area, Denmark

s. 134

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Content of Volume 23/3-4

ZECK, H P. and MALLING, S.:
The Gillberga Synform (Precambrian basement, SW Wärmland, Sweden); literature synopsis and preliminary notes on its re-interpretation
s. 159

NOE-NYGAARD, A. and PEDERSEN, A. K.:
Progressive chemical variation in a tholeiitic lava sequence at Kap Stosch, northern East Greenland
s. 175

SHARMA, P. V.:
A note on seismic velocities of rock formations on Bornholm
s. 191

FRIIS, H, and JOHANNESEN, F. B.:
Late Tertiary weathering of fluvial deposits at Låsby, Denmark
s. 197

SYKES, R.M.:
Sedimentological studies in southern Jameson Land, East Greenland. I. Fluviatile sequences in the Kap Stewart Formation (Rhaetic-Hettangian)
s. 203

SYKES, R. M.:
Sedimentological studies in southern Jameson Land, East Greenland. IL Offshore-estuarine regressive sequences in the NeUl Klinter Formation (Pliensbachian-Toarcian)
s. 213

JURGENSEN, T. and MIKKELSEN, N.:
Coccoliths from volcanic sediments (Danian) in Nûgssuaq, West Greenland
s. 225

PEEL, J. S.:
Systematics, ontogeny and functional morphology of Silurian trilobed bellerophontacean gastropods
s. 231

FRIIS, E . M. :
Taxonomy of the Tertiary fossil fruit Carpolithes oestrupii from the Pleistocene of Denmar k
s. 265

ULLEBERG, K.:
Foraminifera and stratigraphy of the Viborg Formation in Sofienlund, Denmark
s. 269

JØRGENSEN, N. O.:
Carbonate-silica cementation of Pleistocene fluvioglacial gravels from Denmark
s. 293

MØHL, U.:
Subfossil finds of walrus from Denmark , s. 303

BROMLEY, R. G. and FREY, R. W.:
Redescription of the trace fossil Gyrolithes and taxonomic evaluation of Thalassinoides, Ophiomorpha and Spongeliomorpha
s. 311

RADWANSKI, A.:
Palaeoecological observations on Miocene communities of Poland
s. 336

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