MINERALOGY OF COASTAL DEPOSITS OF NORTH-WESTERN SEA OF JAPAN
- 出版年：1991
- 作者：N. G. Razjigaeva；L. A. Ganzey
- 单位1：Pacific Institute of Geography. Far East Branch.The USSR Academy of Sciences,
- 语种：中文
- 作者关键词：Coastal sediments；Sea of Japan；heavy；lightauthigenic and clay；minerals volcanic glass
- 起始页：109
- 总页数：13
- 刊名：海洋地质与第四纪地质
- 是否内版：否
- 刊频：季刊
- 创刊时间：1981
- 主办单位：《海洋地质与第四纪地质》编辑部
- 地址：青岛市18号信箱
- 卷：11
- 期：4
摘要
Distribution of heavy, light and clay minerals in Late Plcistocene-Holocene deposits from different coastal environments (beaches, lagoons, dunes, relict
lakes, ria bays andinlets, open inlets) was analysed. It was established that mineralogical cornposition of coastal deposits was a result of provenance and its bypergenous changes, transformation of material within transit zone, and accu-mulative conditions of inshore zone. Contents of stable minerals increase in
deposits of the inlets confined to mouths of the small streams and in horizons of the sections, formed during regressive phases. Unstable minerals amount is higher in deposits of inlets, confined to mouths of the large river. The clay mineral fraction of shelf sediments consists mostly of illite. Authigenous pyri-
tes dominate in deposits of ria bays, lagoons and relict lakes, formed during transgressive phases. Volcanic glass, found in deposits, is product of Holocene eruptions of Baegdusan (Baitushen) Volcano.
lakes, ria bays andinlets, open inlets) was analysed. It was established that mineralogical cornposition of coastal deposits was a result of provenance and its bypergenous changes, transformation of material within transit zone, and accu-mulative conditions of inshore zone. Contents of stable minerals increase in
deposits of the inlets confined to mouths of the small streams and in horizons of the sections, formed during regressive phases. Unstable minerals amount is higher in deposits of inlets, confined to mouths of the large river. The clay mineral fraction of shelf sediments consists mostly of illite. Authigenous pyri-
tes dominate in deposits of ria bays, lagoons and relict lakes, formed during transgressive phases. Volcanic glass, found in deposits, is product of Holocene eruptions of Baegdusan (Baitushen) Volcano.