Major, trace, rare earth element, and stable isotope analyses of the Triassic carbonates along the northeastern Arabian Plate margin: a key to understanding paleotectonics and paleoenvironment of the Avroman (Biston) limestone formation from Kurdistan region, northeastern Iraq

2021 ◽  
Vol 36 (4) ◽  
Author(s):  
Tola A. Mirza ◽  
Kamal H. Karim ◽  
Sardar M. Ridha ◽  
Chro M. Fatah
Keyword(s):  
Rare Earth ◽  
Stable Isotope ◽  
Rare Earth Element ◽  
Earth Element ◽  
Arabian Plate ◽  
Kurdistan Region ◽  
Stable Isotope Analyses ◽  
Plate Margin ◽  
Isotope Analyses

Stable isotope and Rare Earth Element evidence for recent ironstone pods within the Archean Barberton greenstone belt, South Africa

2006 ◽  
Vol 70 (6) ◽  
pp. 1457-1470 ◽  
Author(s):  
Michael T. Hren ◽  
Donald R. Lowe ◽  
Michael M. Tice ◽  
Gary Byerly ◽  
C. Page Chamberlain
Keyword(s):  
South Africa ◽  
Rare Earth ◽  
Stable Isotope ◽  
Rare Earth Element ◽  
Greenstone Belt ◽  
Earth Element ◽  
Barberton Greenstone Belt

scholarly journals Trace Element and Stable Isotope Geochemistry of Lwamondo and Zebediela Kaolins, Limpopo Province, South Africa: Implication for Paleoenvironmental Reconstruction

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 93
Author(s):  
Avhatakali Raphalalani ◽  
Georges-Ivo Ekosse ◽  
John Odiyo ◽  
Jason Ogola ◽  
Nenita Bukalo
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Stable Isotope ◽  
Trace Element ◽  
Continental Crust ◽  
Rare Earth Element ◽  
Earth Element ◽  
Paleoenvironmental Reconstruction ◽  
Δ18o And Δd ◽  
Ree Patterns

The aim of the present study was the paleoenvironmental reconstruction of the prevailing environment under which the Lwamondo and Zebediela kaolin deposits were formed. Hence, this study reports deuterium and oxygen stable isotope values and trace and rare earth element concentrations for two samples of kaolin. Upper continental crust-normalised trace-element patterns reveal that large ion lithophile elements and high-field-strength elements are generally depleted in Lwamondo and Zebediela kaolins, whereas transition trace elements are generally enriched in these kaolins. Upper continental crust-normalised rare earth element (REE) patterns show that there is a slight enrichment of heavy REEs (HREEs) compared to light REEs (LREEs) in these kaolins. The δ18O and δD stable isotope values for kaolinite from Lwamondo ranged from 17.4‰ to 19.1‰ and from −54‰ to 84‰, respectively, whereas those values for kaolinite from Zebediela varied from 15.6‰ to 17.7‰ and from −61‰ to –68‰ for δ18O and δD, respectively. The REE patterns and the content of other trace elements indicate ongoing kaolinitisation in the Lwamondo and Zebediela kaolins with minimum mineral sorting. The sources of the kaolins varied from basic to acidic and these were derived from an active margin tectonic setting. Lwamondo kaolin was deposited in an oxic environment whereas Zebediela kaolin was deposited under suboxic/anoxic conditions. Based on the δ18O and δD values of the kaolinite, they formed in a supergene environment at temperatures generally below 40 °C.

The Geochemistry of Carbonate-Replacement Pb-Zn-Ag Mineralization in the Lavrion District, Attica, Greece: Fluid Inclusion, Stable Isotope, and Rare Earth Element Studies

2011 ◽  
Vol 106 (4) ◽  
pp. 619-651 ◽  
Author(s):  
T. A. Bonsall ◽  
P. G. Spry ◽  
P. C. Voudouris ◽  
S. Tombros ◽  
K. S. Seymour ◽  
...  
Keyword(s):  
Rare Earth ◽  
Stable Isotope ◽  
Fluid Inclusion ◽  
Rare Earth Element ◽  
Earth Element
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