scholarly journals On the thermal and redox history of the Yamato diogenite Y-74013

1986 ◽  
Vol 95 (3) ◽  
pp. 381-395
Author(s):  
Amalbikash Mukherjee ◽  
T. A. Viswanath
Keyword(s):  
History Of ◽  
Redox History

scholarly journals Redox history of the Three Gorges region during the Ediacaran and Early Cambrian as indicated by the Fe isotope

2018 ◽  
Vol 9 (1) ◽  
pp. 155-172 ◽  
Author(s):  
Yusuke Sawaki ◽  
Miyuki Tahata ◽  
Tsuyoshi Komiya ◽  
Takafumi Hirata ◽  
Jian Han ◽  
...  
Keyword(s):  
Early Cambrian ◽  
Three Gorges ◽  
The Three Gorges ◽  
Three Gorges Region ◽  
History Of ◽  
Redox History

Crystallization, melt inclusion, and redox history of a Martian meteorite: Olivine-phyric shergottite Larkman Nunatak 06319

2010 ◽  
Vol 74 (15) ◽  
pp. 4543-4576 ◽  
Author(s):  
A.H. Peslier ◽  
D. Hnatyshin ◽  
C.D.K. Herd ◽  
E.L. Walton ◽  
A.D. Brandon ◽  
...  
Keyword(s):  
Melt Inclusion ◽  
Martian Meteorite ◽  
History Of ◽  
Redox History

ECOLOGY AND EVOLUTION OF MANGANESE MINERALS: IMPLICATIONS FOR THE REDOX HISTORY OF EARTH AND LIFE

2018 ◽  
Author(s):  
Daniel R. Hummer ◽  
◽  
Robert M. Hazen ◽  
Ahmed Eleish ◽  
Chao Liu ◽  
...  
Keyword(s):  
History Of ◽  
Manganese Minerals ◽  
Redox History

scholarly journals Seasonal and Spatial Variation of Mo Isotope Compositions in Headwater Stream of Xijiang River Draining the Carbonate Terrain, Southwest China

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1076 ◽  
Author(s):  
Jie Zeng ◽  
Guilin Han ◽  
Jian-Ming Zhu
Keyword(s):  
Southwest China ◽  
Isotopic Fractionation ◽  
Dilution Effect ◽  
Dry Season ◽  
Wet Season ◽  
Xijiang River ◽  
Seasonal And Spatial Variations ◽  
History Of ◽  
River Reach ◽  
Redox History

The dissolved molybdenum (Mo) contents and Mo isotope in water samples from the upper Xijiang River (XJR), draining the carbonate terrain, southwest China, are reported to investigate the seasonal and spatial variations, sources, ion budget, and isotopic fractionation of dissolved Mo. The results show that the Mo concentrations (5.3–18.9 nmol/L) exhibit an extensive variation along the mainstream without significant spatial pattern, but the Mo concentrations are slightly higher in the dry season than in the wet season caused by the dilution effect. There is a slight spatial tendency for δ98/95Mo to become higher along the mainstream (0.51–1.78%), while the seasonal variations in δ98/95Mo values of NPR (Nanpanjiang River) reach and BPR (Beipanjiang River) reach can be identified higher in the dry season but lower in the wet season. Based on the hydro-geochemical analysis, the sources of dissolved Mo are identified as the carbonates and sulfide/sulfate minerals weathering with a seasonal contribution. Moreover, our results suggest there is no significant Mo isotopic fractionation during weathering and riverine transportation. The calculation of Mo budget demonstrates that the dissolved δ98/95Mo of river draining the carbonate terrain is underestimated, which could significantly influence the redox history of oceans by Mo isotope model.

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