Genetic types and REE composition of polymetallic nodules from the eastern part of the Clarion-Clipperton Fractures zone, NE Pacific

被引：0

作者：

Hikov, Atanas ^{[1
]}

Stefanova, Elitsa ^{[1
]}

Stoyanova, Valcana ^{[2
]}

Milakovska, Zlatka ^{[1
]}

Abramowski, Tomasz ^{[2
]}

Chavdarova, Silvia ^{[1
]}

Stavrev, Milen ^{[1
]}

Peytcheva, Irena ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Geol, Sofia, Bulgaria

[2] Interoceanmet Joint Org, Szczecin, Poland

来源：

16TH SGA BIENNIAL MEETING, 2022, VOL 1 | 2022年

关键词：

GEOCHEMISTRY; RESOURCE; ELEMENT; OCEAN;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The geochemical characteristics of the polymetallic nodules from the Interoceanmetal exploration area in the eastern part of the Clarion-Clipperton Fractures Zone (CCZ), NE Pacific are studied. The nodules are enriched in Mn and reveal an Mn/Fe ratio of 2.74-6.06, which classify them mostly as mixed hydrogenetic-diagenetic type. They are also enriched in Ni, Cu, Co, Zn, Mo, W, Li, Tl and REE. The PAAS-normalized in situ REE patterns based on in-situ LA-ICP-MS data exhibit MREE and HREE enrichment and a variable Ce anomaly (Ce/Ce*=0.13-1.73) that argues for a changing oxic/suboxic environment during the nodule growth. The studied nodules are a possible source of critical elements for strategic value-added industries.

引用

页码：129 / 132

页数：4

共 18 条

[1] Discriminating between different genetic types of marine ferro-manganese crusts and nodules based on rare earth elements and yttrium [J].