Chemical composition of glauconite and montmorillonite group minerals from sediments and rocks of the Norwegian Sea

• Main Authors: Grechishkin, V S, Zangalis, K P, Murin, I V, Emelyanov, Emelyan M, Sivkov, Vadim P, Kharin, Gennady S
• Format: Dataset
• Language: English
• Published: PANGAEA 1979
• Subjects: 38-336; 38-338; AK10-759-15; Akademik Kurchatov; AKU10; Aluminium oxide; Archive of Ocean Data; ARCOD; Calcium oxide; Deep Sea Drilling Project; DEPTH; sediment/rock; Dredge; DRG; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Iron oxide; Fe2O3; FeO; Latitude of event; Leg38; Longitude of event; Magnesium oxide; North Atlantic/Norwegian Sea; North Atlantic/Norwegian Sea/PLATEAU; Norwegian Sea; Potassium oxide; Sample type; Silicon dioxide; Sodium oxide; Titanium dioxide; Water in rock; Wet chemistry; Doublets; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.754921; https://doi.org/10.1594/PANGAEA.754921

Two quadrupole splitting doublets with delta E_q = 0.74 and 1.62 mm/s were found in the montmorillonite spectra. The more intense doublet corresponds to iron in a somewhat distorted tetrahedral coordination, while the less intense corresponds to quadri-coordinated iron. The EPR spectrum also exhibits two lines with a q-factor of 3 and 4.3, which corresponds to transformed minerals.