10.1594/PANGAEA.733319
Murdmaa, Ivar O
Ivar O
Murdmaa
Bazilevskaya, Elena S
Elena S
Bazilevskaya
Gordeev, Viacheslav V
Viacheslav V
Gordeev
Emelyanov, Emelyan M
Emelyan M
Emelyanov
Kazakova, Vera P
Vera P
Kazakova
Kuz'mina, Tatyana G
Tatyana G
Kuz'mina
Mukhina, Valentina V
Valentina V
Mukhina
Rudakova, Alevtina N
Alevtina N
Rudakova
Turanskaya, Natalya V
Natalya V
Turanskaya
Mineral and chemical compositions of sedimentary and volcano-sedimentary rocks drilled in DSDP Legs 43 and 44
PANGAEA
1979
Drilling/drill rig
Leg43
Leg44
Glomar Challenger
Deep Sea Drilling Project (DSDP)
1975-07-05T00:00:00/1975-09-02T00:00:00
en
Supplementary Publication Series of Datasets
7 datasets
application/zip
Creative Commons Attribution 3.0 Unported
Sedimentary cover on the bottom of the Northwest Atlantic Ocean is underlain by Late Jurassic - Cretaceous tholeiite-basalt formation. It consists of come sedimentary formations with different lithologic features and age. Their composition, stratigraphic position and, distribution are described on materials of deep-sea drilling. Mineralogical and geochemical studies of DSDP Leg 43 and Leg 44 holes lead to new ideas about composition and genesis of some sediment types of and their associations. High metal contents in the chalk formation of black clays on the Bermuda Rise probably result from exhalations. Connection of red-colored and speckled deposits with hiatuses in sedimentation is shown. Main stages of geological history of the North American Basin are reflected in accumulation of the followed formations: ancient carbonate formation (Late Jurassic - Early Cretaceous), formation of black clays rich in organic matter (Cretaceous), formation of speckled clays (Late Cretaceous), siliceous-clayey turbidite formation (Eocene), hemipelagic and pelagic clayey formation (Neogene), and terrigenous turbidite formation (Pleistocene).
Supplement to: Murdmaa, Ivar O; Bazilevskaya, Elena S; Gordeev, Viacheslav V; Emelyanov, Emelyan M; Kazakova, Vera P; Kuz'mina, Tatyana G; Mukhina, Valentina V; Rudakova, Alevtina N; Turanskaya, Natalya V (1979): Geological Formations of the Southwest Atlantic Ocean. Bezrukov, P.L. (Ed.), Nauka Publ. (Moscow): in Russian, 207 pp.
-76.1123
-51.6633
28.2268
40.3608
North Atlantic/SEAMOUNT
North Atlantic/RIDGE
North Atlantic/CONT RISE
North Atlantic
North Atlantic/BASIN