Trace element geochemistry of the Lower Cambrian black rock series from northwestern Hunan, South China *

2004 ◽  
Vol 14 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Jiayong Pan ◽  
Dongsheng Ma ◽  
Shuanglin Cao
Keyword(s):  
Trace Element ◽  
South China ◽  
Lower Cambrian ◽  
Trace Element Geochemistry ◽  
Rock Series ◽  
Element Geochemistry ◽  
Black Rock Series

Major and trace element geochemistry of the Neoproterozoic syn-glacial Fulu iron formation, South China

2016 ◽  
Vol 154 (6) ◽  
pp. 1371-1380 ◽  
Author(s):  
LIANJUN FENG ◽  
JING HUANG ◽  
DINGBIAO LU ◽  
QIRUI ZHANG
Keyword(s):  
High Temperature ◽  
Trace Element ◽  
South China ◽  
Major Element ◽  
Deep Ocean ◽  
Iron Formation ◽  
Trace Element Geochemistry ◽  
Element Geochemistry ◽  
Surface Ocean ◽  
Binary Mixing

AbstractThe Fulu iron formation (IF) is an iron-rich unit in the Neoproterozoic glacial successions, South China. The major element data suggest that the iron sources of the Fulu IF are derived from binary mixing from hydrothermal and detrital loads. The Fulu IF is characterized by slightly positive Eu anomalies similar to other Neoproterozoic IFs, indicating that a high-temperature hydrothermal input may contribute little to Neoproterozoic IFs. A shift from non-existent to slightly negative Ce anomalies of the Fulu IF indicates that the IF precipitated across an iron chemocline separating a weakly oxic surface ocean from an oxygen-depleted deep ocean.

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