Glauconite grains in continental shelf sediments around the Korean Peninsula and their depositional implications SCOPUS

DC Field Value Language
dc.contributor.author Lim, D.I. -
dc.contributor.author Park, Y.A. -
dc.contributor.author Choi, J.Y. -
dc.contributor.author Cho, J.W. -
dc.contributor.author Khim, B.K. -
dc.date.accessioned 2020-04-21T08:40:41Z -
dc.date.available 2020-04-21T08:40:41Z -
dc.date.created 2020-01-28 -
dc.date.issued 2000 -
dc.identifier.issn 0276-0460 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/6089 -
dc.description.abstract Glauconite grains are an important component of the surficial sediments on the Korean continental shelf. Relatively high glauconite contents (> 20%) occur near Huksan Island in the Yellow Sea and on the outer shelf of the southern East Sea where they are associated with relict, sandy sediments. By contrast, glauconite grains are rare (< 1%) in clay-dominated sediments. The grains can be classified into four major categories: (1) very abundant, green to dark green, spheroidal and lobate grains displaying bulbous and honeycomb exteriors with well-developed surface cracks; (2) dark green, discoidal grains with poorly defined cracks; (3) scarce, moderately dark green, accordion-shaped grains characterized by series of closely spaced, parallel surface ridges; (4) scarce, green to dark green, foraminifer-shaped grains. Microprobe analyses as well as optical microscopy and SEM observations show that most grains are composed of mineral mixtures (e.g., quartz, mica, feldspar) rather than a single mineral species. The mineralogy, morphology, and textural properties suggest that the grains may have formed mainly by replacement of fecal pellets, and the alteration of mica and clays which have filled foraminifera tests. The high potassium contents, rosette-shaped clay structures, and bulbous shapes reflect an &apos;evolved&apos; (mature) stage of glauconitization. Glauconite grains in Korean shelf sediments are presumably relict, and have been produced by the reworking of older glauconitic sediments during the Holocene sea-level transgression. -
dc.description.uri 3 -
dc.language English -
dc.publisher Springer Verlag -
dc.subject continental shelf -
dc.subject glauconite -
dc.subject marine sediment -
dc.subject sedimentation -
dc.subject Sea of Japan -
dc.subject Yellow Sea -
dc.title Glauconite grains in continental shelf sediments around the Korean Peninsula and their depositional implications -
dc.type Article -
dc.citation.endPage 86 -
dc.citation.startPage 80 -
dc.citation.title Geo-Marine Letters -
dc.citation.volume 20 -
dc.citation.number 2 -
dc.contributor.alternativeName 김부근 -
dc.identifier.bibliographicCitation Geo-Marine Letters, v.20, no.2, pp.80 - 86 -
dc.identifier.doi 10.1007/s003670000045 -
dc.identifier.scopusid 2-s2.0-0033786848 -
dc.type.docType Article -
dc.description.journalClass 3 -
dc.subject.keywordPlus continental shelf -
dc.subject.keywordPlus glauconite -
dc.subject.keywordPlus marine sediment -
dc.subject.keywordPlus sedimentation -
dc.subject.keywordPlus Sea of Japan -
dc.subject.keywordPlus Yellow Sea -
dc.description.journalRegisteredClass scopus -
Appears in Collections:
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse