Tab. 1: Semi-quantitative estimations of mineral composition

Paleontological and petrological studies of clay beds in the Basilika Formation (Tertiary age) are the subject of this paper. The petrology of the beds indicates that their main constituents were derived from volcanic activity and represent bentonites. Differing composition of the beds may suggest s...

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Bibliographic Details
Main Authors: Dypvik, Henning, Nagy, Jenö
Format: Dataset
Language:English
Published: PANGAEA 1978
Subjects:
Basilika
Chlorite
relative abundance
Event label
Feldspar (3.22 Å)
Firkanten
Grain size
maximum
Illite/Smectite ratio
PROFILE
Profile sampling
Quartz (4.26 Å)
Sample code/label
Svalbard
X-ray diffraction (XRD)
Polarforschung
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.743231
https://doi.org/10.1594/PANGAEA.743231
Description
Summary:Paleontological and petrological studies of clay beds in the Basilika Formation (Tertiary age) are the subject of this paper. The petrology of the beds indicates that their main constituents were derived from volcanic activity and represent bentonites. Differing composition of the beds may suggest several spatially separated eruptions. The volcanic source area probably lay towards the north of the present Tertiary outcrops of Svalbard. Two foraminiferal assemblages are found in the bentonites: the lower is dominated by arenaceous forms while the upper consists of calcareous species.

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