Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication

Heavy mineral assemblages have been widely used to effectively trace sediment sources. Heavy mineral assemblages are rarely used in research to trace sediment sources in the southern Okinawa Trough compared with geochemical proxies. In this study, the TESCAN Integrated Mineral Analyzer (TIMA) reveal...

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Autores principales:	Bowen Zhu, Zhigang Zeng
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	heavy minerals sediment provenance Okinawa Trough the East China Sea shelf Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/655e45ea50ab40c29f23ecd0df253bfd
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id	oai:doaj.org-article:655e45ea50ab40c29f23ecd0df253bfd
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spelling	oai:doaj.org-article:655e45ea50ab40c29f23ecd0df253bfd2021-11-25T18:26:08ZHeavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication10.3390/min111111912075-163Xhttps://doaj.org/article/655e45ea50ab40c29f23ecd0df253bfd2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1191https://doaj.org/toc/2075-163XHeavy mineral assemblages have been widely used to effectively trace sediment sources. Heavy mineral assemblages are rarely used in research to trace sediment sources in the southern Okinawa Trough compared with geochemical proxies. In this study, the TESCAN Integrated Mineral Analyzer (TIMA) revealed the full-size heavy mineral assemblages in the five layers of the core sediment H4-S2 in the southern Okinawa Trough. During the past 700 years, the heavy mineral assemblages in the sediments of the southern Okinawa Trough were very similar to the East China Sea shelf/Yangtze River, mainly composed of mica and chlorite; dolomite; actinolite; and hematite/magnetite. The grain size distribution of heavy minerals is in the clay–sand range and mainly in silt. Actinolite and hornblende can indicate the supply of sediments from the East China Sea shelf/Yangtze River to the southern Okinawa Trough. Due to their complex sources, pyrite, epidote, and hematite/magnetite are not adequate indicators for distinguishing between the different provenance areas. Because previous studies have used a variety of analytical methods, especially using heavy liquids with different densities, dolomite cannot be used as a marker for sediments on the Yangtze River/East China Sea shelf. Therefore, the East China Sea shelf/Yangtze River is a vital provenance of sediments from the southern Okinawa Trough since the late Holocene period.Bowen ZhuZhigang ZengMDPI AGarticleheavy mineralssediment provenanceOkinawa Troughthe East China Sea shelfMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1191, p 1191 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	heavy minerals sediment provenance Okinawa Trough the East China Sea shelf Mineralogy QE351-399.2
spellingShingle	heavy minerals sediment provenance Okinawa Trough the East China Sea shelf Mineralogy QE351-399.2 Bowen Zhu Zhigang Zeng Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
description	Heavy mineral assemblages have been widely used to effectively trace sediment sources. Heavy mineral assemblages are rarely used in research to trace sediment sources in the southern Okinawa Trough compared with geochemical proxies. In this study, the TESCAN Integrated Mineral Analyzer (TIMA) revealed the full-size heavy mineral assemblages in the five layers of the core sediment H4-S2 in the southern Okinawa Trough. During the past 700 years, the heavy mineral assemblages in the sediments of the southern Okinawa Trough were very similar to the East China Sea shelf/Yangtze River, mainly composed of mica and chlorite; dolomite; actinolite; and hematite/magnetite. The grain size distribution of heavy minerals is in the clay–sand range and mainly in silt. Actinolite and hornblende can indicate the supply of sediments from the East China Sea shelf/Yangtze River to the southern Okinawa Trough. Due to their complex sources, pyrite, epidote, and hematite/magnetite are not adequate indicators for distinguishing between the different provenance areas. Because previous studies have used a variety of analytical methods, especially using heavy liquids with different densities, dolomite cannot be used as a marker for sediments on the Yangtze River/East China Sea shelf. Therefore, the East China Sea shelf/Yangtze River is a vital provenance of sediments from the southern Okinawa Trough since the late Holocene period.
format	article
author	Bowen Zhu Zhigang Zeng
author_facet	Bowen Zhu Zhigang Zeng
author_sort	Bowen Zhu
title	Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
title_short	Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
title_full	Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
title_fullStr	Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
title_full_unstemmed	Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication
title_sort	heavy mineral compositions of sediments in the southern okinawa trough and their provenance-tracing implication
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/655e45ea50ab40c29f23ecd0df253bfd
work_keys_str_mv	AT bowenzhu heavymineralcompositionsofsedimentsinthesouthernokinawatroughandtheirprovenancetracingimplication AT zhigangzeng heavymineralcompositionsofsedimentsinthesouthernokinawatroughandtheirprovenancetracingimplication
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Heavy Mineral Compositions of Sediments in the Southern Okinawa Trough and Their Provenance-Tracing Implication

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