Lanthanide tetrad effect observed in leucogranites from China

Akimasa Masuda; Tasuku Akagi

doi:10.2343/geochemj.23.245

Lanthanide tetrad effect observed in leucogranites from China

Akimasa Masuda, Tasuku Akagi

Research output: Contribution to journal › Article › peer-review

97 Citations (Scopus)

Abstract

Some leucogranites from China have been found to display the tetrad effect (Masuda et. al., 1987). Abundances of all rare earth elements (REE) in leucogranites from Hunan Province, China, were studied for the first time by inductively coupled plasma mass spectrometry (ICP-MS) in order to investigate the shape of the tetrad effect. The chondrite normalized REE pattern consisting of all members except Eu revealed a clear M-type tetrad effect, according to the classification by Masuda et. al. (1987). Eu shows a strong negative anomaly. These features may reflect a long history of contact with water. Mathematical analyses of the REE patterns suggest also an octad effect behind the patterns and symmetry between the first (La-Ce-Pr-Nd) and fourth tetrads (Er-Tm-Yb-Lu).

Original language	English
Pages (from-to)	245-253
Number of pages	9
Journal	GEOCHEMICAL JOURNAL
Volume	23
Issue number	5
DOIs	https://doi.org/10.2343/geochemj.23.245
Publication status	Published - 1989
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
Geochemistry and Petrology

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abstract = "Some leucogranites from China have been found to display the tetrad effect (Masuda et. al., 1987). Abundances of all rare earth elements (REE) in leucogranites from Hunan Province, China, were studied for the first time by inductively coupled plasma mass spectrometry (ICP-MS) in order to investigate the shape of the tetrad effect. The chondrite normalized REE pattern consisting of all members except Eu revealed a clear M-type tetrad effect, according to the classification by Masuda et. al. (1987). Eu shows a strong negative anomaly. These features may reflect a long history of contact with water. Mathematical analyses of the REE patterns suggest also an octad effect behind the patterns and symmetry between the first (La-Ce-Pr-Nd) and fourth tetrads (Er-Tm-Yb-Lu).",

author = "Akimasa Masuda and Tasuku Akagi",

year = "1989",

doi = "10.2343/geochemj.23.245",

language = "English",

volume = "23",

pages = "245--253",

journal = "Geochemical Journal",

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T1 - Lanthanide tetrad effect observed in leucogranites from China

AU - Masuda, Akimasa

AU - Akagi, Tasuku

PY - 1989

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N2 - Some leucogranites from China have been found to display the tetrad effect (Masuda et. al., 1987). Abundances of all rare earth elements (REE) in leucogranites from Hunan Province, China, were studied for the first time by inductively coupled plasma mass spectrometry (ICP-MS) in order to investigate the shape of the tetrad effect. The chondrite normalized REE pattern consisting of all members except Eu revealed a clear M-type tetrad effect, according to the classification by Masuda et. al. (1987). Eu shows a strong negative anomaly. These features may reflect a long history of contact with water. Mathematical analyses of the REE patterns suggest also an octad effect behind the patterns and symmetry between the first (La-Ce-Pr-Nd) and fourth tetrads (Er-Tm-Yb-Lu).

AB - Some leucogranites from China have been found to display the tetrad effect (Masuda et. al., 1987). Abundances of all rare earth elements (REE) in leucogranites from Hunan Province, China, were studied for the first time by inductively coupled plasma mass spectrometry (ICP-MS) in order to investigate the shape of the tetrad effect. The chondrite normalized REE pattern consisting of all members except Eu revealed a clear M-type tetrad effect, according to the classification by Masuda et. al. (1987). Eu shows a strong negative anomaly. These features may reflect a long history of contact with water. Mathematical analyses of the REE patterns suggest also an octad effect behind the patterns and symmetry between the first (La-Ce-Pr-Nd) and fourth tetrads (Er-Tm-Yb-Lu).

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Lanthanide tetrad effect observed in leucogranites from China

Abstract

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