Relative contents of heavy minerals in 0.100-0.010 mm grain size fraction from bottom sediments of the southwest Barents Sea

Structure and composition of sub-surface bottom sediments from the southwest Barents Sea have been under study. The study has revealed heterogeneity of sediment structure resulted from temporal irregularity and variability of sedimentation processes. The study of the heavy minerals from 0.1-0.01 mm...

Full description

Bibliographic Details
Main Authors: Lavrushin, YuI, Spiridonov, M A, Sakharov, B A, Golubev, Yu K, Tkachenko, V A, Rybalko, A E
Format: Dataset
Language:English
Published: PANGAEA 1984
Subjects:
Actinolite
Aegirine
Aegirine-augite
Amphibole group minerals
Apatite
Archive of Ocean Data
ARCOD
Augite
Biotite
Carbonates
Chlorite
Counting 10-100 µm fraction
DEPTH
sediment/rock
Disthene
Epidote
Event label
Ferrohornblende
Garnet
GC
Glaucophane
Gravity corer
Heavy minerals
Hematite
Fe2O3
Hornblende
brown
green
Ilmenite
Latitude of event
Leucoxene
Limonite
Longitude of event
LSSGTR-322
LSSGTR-323
LSSGTR-324
LSSGTR-325
LSSGTR-327
LSSGTR-328
LSSGTR-329
LSSGTR-331
Magnetite
Muscovite
Nonidentified
altered
heavy
Ore
Pyrite
FeS2
Barents Sea
Kola Peninsula
kola peninsula
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.778313
https://doi.org/10.1594/PANGAEA.778313
Description
Summary:Structure and composition of sub-surface bottom sediments from the southwest Barents Sea have been under study. The study has revealed heterogeneity of sediment structure resulted from temporal irregularity and variability of sedimentation processes. The study of the heavy minerals from 0.1-0.01 mm grain size fraction has shown prevalence of green hornblende, epidote, garnet, and ilmenite in all types of sediments; these minerals are the basis of terrigenous-mineralogical province. At the same time in different areas local terrigenous-mineralogical associations have been identified. Clay mineral composition of in the sediments was quite uniform: biotite, chlorite, hydromica, smectite. Despite this, a number of features indicating initial stages of clay mineral transformation has been identified. Differences in material composition and structure of the studied sediments are associated with rapid change in paleogeographic situation on the land - ice cover melting on the Kola Peninsula and subsequent Holocene climatic situation.

Similar Items