|
|
GEOCHEMISTRY OF JIAJIAPUZI BANDED IRON FORMATION IN BENXI CITY, LIAONING PROVINCE |
HAN Ren-ping1, KOU Lin-lin1, WANG Xiao-zheng2 |
1. Shenyang Center of China Geological Survey, Shenyang 110034, China; 2. Core Samples and Data Center of Land Resources, CGS, Sanhe 065201, Hebei Province, China |
|
|
Abstract The ore-forming material source and genesis of Jiajiapuzi banded iron formation(BIF) in Benxi City are studied by the geochemical analysis of combining major and rare earth elements (REE). The results show that the main chemical compositions of Jiajiapuzi BIF are TFe2O3 and SiO2, with low content of Al2O3 and TiO2, which is basically the same characteristics as the BIFs in Anshan-Benxi area, Wutai Mountain in Shanxi Province and Qian'an area in eastern Hebei Province, indicating that the BIF is a kind of chemical sedimentary rock with a little clastic material. The REEs are characterized by weak deficiency of LREEs, enrichment of HREEs and obvious positive Eu anomaly, reflecting the REEs in BIF are from a mixture of volcanic hydrothermal fluid and seawater. The Jiajiapuzi BIF genetically belongs to Algoma-type.
|
Received: 18 May 2018
|
|
|
|
|
[1] |
周世泰. 鞍山-本溪地区条带状铁矿地质[M]. 北京:地质出版社, 1994:1-278. Zhou S T. Geology of banded iron formation from Anshan-Benxi area[M]. Beijing:Geological Publishing House, 1994:1-278. (in Chinese)
|
[2] |
李士江, 全贵喜. 鞍山-本溪地区含铁变质地层的划分与对比[J]. 地质找矿论丛, 2010, 25(2):107-111. Li S J, Quan G X. Stratigraphic division and correlation of iron ore-bearing metamorphic rocks in Anshan-Benxi area[J]. Contributions to Geology and Mineral Resources Research, 2010, 25(2):107-111.
|
[3] |
张东阳, 苏慧敏, 秦松, 等. 河南窑场铁矿床地球化学特征及其地质意义[J]. 矿床地质, 2009, 28(3):321-335. Zhang D Y, Su H M, Qin S, et al. Geochemistry of Yaochang iron deposit in Henan Province and its geological implications[J]. Mineral Deposits, 2009, 28(3):321-335.
|
[4] |
李志红, 朱祥坤, 唐索寒. 鞍山-本溪地区条带状铁建造的铁同位素与稀土元素特征及其对成矿物质来源的指示[J]. 岩石矿物学杂志, 2008, 27(4):285-290. Li Z H, Zhu X K, Tang S H. Characters of Fe isotopes and rare earth elements of banded iron formations from Anshan-Benxi area:Implications for Fe source[J]. Acta Petrologica et Mineralogica, 2008, 27(4):285-290.
|
[5] |
张朋. 辽宁本溪大台沟铁矿地球化学特征及其地质意义[J]. 地质与资源, 2016, 25(1):56-59. Zhang P. Geochemical characteristics and geological signification of the Dataigou iron deposit in Benxi, Liaoning Province[J]. Geology and Resources, 2016, 25(1):56-59.
|
[6] |
Huston D L, Logan G A. Barite, BIFs and bugs:Evidence for the evolution of the earth's early hydrosphere[J]. Earth and Planetary Science Letters, 2004, 220(1/2):41-55.
|
[7] |
Spier C A, de Oliveira S M B, Sial A N, et al. Geochemistry and genesis of the banded iron formations of the Cauê Formation, Quadrilátero Ferrífero, Minas Gerais, Brazil[J]. Precambrian Research, 2007, 152(3/4):170-206.
|
[8] |
McLennan S M. Rare earth elements in sedimentary rocks:Influence of provenance and sedimentary processes[M]//Lipin B, McKay G A. Geochemistry and Mineralogy of Rare Earth Elements. Washington:The Mineralogical Society of America, 1989:169-200.
|
[9] |
Carlos A S, Sonia M B, Alcides N S, et al. Geochemistry and genesis of the banded iron formations of the Caue Formation, Quadrilatero Ferrifero, Minas Gerais, Brazil[J]. Precambrian Research, 2007, 152:170-206.
|
[10] |
李志红, 朱祥坤, 唐索寒, 等. 冀东、五台和吕梁地区条带状铁矿的稀土元素特征及其地质意义[J]. 现代地质,2010,24(5):840-846. Li Z H, Zhu X K, Tang S H, et al. Characteristics of rare earth elements and geological significations of BIFs from Jidong, Wutai and Lüliang area[J]. Geoscience, 2010, 24(5):840-846.
|
[11] |
沈其韩, 宋会侠, 杨崇辉, 等. 山西五台山和冀东迁安地区条带状铁矿的岩石化学特征及其地质意义[J]. 岩石矿物学杂志, 2011, 30(2):161-171. Shen Q H, Song H X, Yang C H, et al. Petrochemical characteristics and geological significations of banded iron formations in the Wutai mountain of Shanxi and Qian'an of eastern Hebei[J]. Acta Petrologica et Mineralogica, 2011, 30(2):161-171.
|
[12] |
崔培龙. 鞍山-本溪地区铁建造型铁矿成矿构造环境与成矿、找矿模式研究[D]. 长春:吉林大学, 2014. Cui P L. Metallogenic tectonic setting, metallogenic and prospecting models for Precambrian iron-formation in the Anshan-Benxi area[M]. Changchun:Jilin University, 2014.
|
[13] |
Danielson A, Möller P, Dulski P. The europium anomalies in banded iron formations and the thermal history of the oceanic crust[J]. Chemical Geology, 1992, 97(1/2):89-100.
|
[14] |
Dymek R F, Klein C. Chemistry, petrology and origin of banded iron-formation lithologies from the 3800 Ma Isua supracrustal belt, West Greenland[J]. Precambrian Research, 1988, 39(4):247-302.
|
|
|
|