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The geochemical characteristics of rare earth elements rich deep sea deposit of Core GC11 in central Indian Ocean Basin
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Xiaoyu Zhang1, 2, Mu Huang3, 4, Xuefa Shi3, 4, Dasong Huang1
Haiyang Xuebao | 2019, 41(12) : 51 - 61
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Haiyang Xuebao | 2019, 41(12): 51-61
• Marine Geology •
The geochemical characteristics of rare earth elements rich deep sea deposit of Core GC11 in central Indian Ocean Basin
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Xiaoyu Zhang1, 2, Mu Huang3, 4, Xuefa Shi3, 4, Dasong Huang1
Affiliations
  • 1 School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
  • 2 Ocean College, Zhejiang University, Zhoushan 316021, China
  • 3 Key Laboratory of Marine Sedimentary and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
  • 4 Laboratory for Marine Geology and Environment, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
Published: 2019-12-25 doi: 10.3969/j.issn.0253-4193.2019.12.005
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Measurement of major elements, trace elements and rare earth elements (REY) for sediment Core GC11 collected in the central Indian Ocean Basin were performed. Based on the analysis of interelemental correlation, REY enrichment and post-Archean Australian Shale (PAAS) normalization style, the factors impacting the REY enrichment are discussed. The study suggests that: the total amount of REY varies from 400.64×10−6 to 742.74×10−6, with an average of 658.41×10−6, which is slightly lower than that of Core GC02, however, is equivalent to that of the zeolite-bearing rich deep-sea deposit in the Core DSDP213 . The sediment exhibits distinct negative abnormal δCe and lower (La/Yb)N为0.42, with obvious positive correlation between REY and P2O5. The average value of CaO/P2O5 ratio is 2.3, demonstrating that the bio-apatite may be the main host mineral of REY. Although there is positive correlation between REY and Fe and Mn, hydroxyl hydrate of Fe and Mn have low impact to the enrichment of REY for the distinct negative abnormal δCe. The mixture with the terregeneous materials maybe the main cause inducing the differences of REY enrichment degree, δCe and PAAS normalization style.

REY rich deep sea deposit  /  REY geochemical characteristics  /  material sources  /  central India Ocean Basin  /  Core GC11
Xiaoyu Zhang, Mu Huang, Xuefa Shi, Dasong Huang. The geochemical characteristics of rare earth elements rich deep sea deposit of Core GC11 in central Indian Ocean Basin[J]. Haiyang Xuebao, 2019 , 41 (12) : 51 -61 . DOI: 10.3969/j.issn.0253-4193.2019.12.005
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doi: 10.3969/j.issn.0253-4193.2019.12.005
  • Receive Date：2018-10-29
  • Online Date：2026-04-03
  • Published：2019-12-25
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History
  • Received：2018-10-29
  • Revised：2019-05-06
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Affiliations
    1 School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
    2 Ocean College, Zhejiang University, Zhoushan 316021, China
    3 Key Laboratory of Marine Sedimentary and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
    4 Laboratory for Marine Geology and Environment, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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