Journal
GEOSCIENCES JOURNAL
Volume 7, Issue 3, Pages 209-215Publisher
GEOLOGICAL SOCIETY KOREA
DOI: 10.1007/BF02910287
Keywords
framboidal pyrite; dark laminated mud; euxinic; late Quaternary; East Sea
Categories
Ask authors/readers for more resources
The three piston cores, collected from the East Sea, were analyzed to detect changes of sedimentary environment during the late Quaternary. The cores consist mainly of muddy sediments that are interbedded with silty sands, lapilli and ash layers. The so-called dark laminated mud (DLM) layers are found during the last-glacial and interglacial transition. The geochemical results document that the DLM layers are enriched in Fe relative to Mn. Fe is present as a form of framboidal pyrite, which shows a proportion of about 2:1 for S and Fe. Based on the morphology, the pyrites are regarded to have grown in the transitional state between high and low supersaturations of Fe and S. Furthermore, the framboidal size distribution implies that the DLM layers have deposited in euxinic environments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available