Isotopic composition of helium in eclogite from the Dabie Mountains, central China and its geological significance

1998 ◽  
Vol 43 (16) ◽  
pp. 1362-1366 ◽  
Author(s):  
Jianguo Du ◽  
Jianzhen Zhang ◽  
Mingliang Sun ◽  
Youlian Zhang
1998 ◽  
Vol 43 (3) ◽  
pp. 253-256 ◽  
Author(s):  
Chunjing Wei ◽  
Zhengang Shan ◽  
Lifei Zhang ◽  
Shiguang Wang ◽  
Zongguang Chang

Author(s):  
Kunhua Yang ◽  
Guilin Han ◽  
Chao Song ◽  
Peng Zhang

In order to understand the water cycle and assess the water quality for irrigation purposes in the Upper Pi River Basin (UPRB), which is the northern slope of the Dabie Mountains, 68 surface water and groundwater samples were collected and analyzed for H-O isotopes and hydrochemistry during the high-flow season in 2017 and 2018. The results show that ranges of hydrogen and oxygen isotopic composition (δ2H: −68.8‰ to −40.8‰, δ18O: −10.05‰ to −5.05‰) are controlled by the medium latitude and high altitude of the UPRB. Among different types of water, the δ2H and δ18O values can be ordered as follows: reservoir water < spring water ≈ river water < pond water. The water of the upstream medium and small reservoir is enriched with lighter isotopes that is likely related to more exchange with rainwater and less residence time; however, large reservoirs are similar to the upstream river and spring in terms of the H-O isotopic composition. Hydro-chemical facies are dominated by the Ca-HCO3 type in the UPRB, which reflects fresh recharged water from rainfall, and few samples are of the Ca-Cl type that is caused by intensive evaporation. The water quality for irrigation purposes was also evaluated. According to the Wilcox diagram, United States Salinity Laboratory (USSL) diagram, magnesium hazard, and Kelly’s ratio, all water samples have been considered suitable for irrigation water.


2003 ◽  
Vol 200 (3-4) ◽  
pp. 255-265 ◽  
Author(s):  
Qiuli Li ◽  
Shuguang Li ◽  
Yong-Fei Zheng ◽  
Huimin Li ◽  
Hans Joachim Massonne ◽  
...  

Lithos ◽  
2007 ◽  
Vol 96 (1-2) ◽  
pp. 151-169 ◽  
Author(s):  
Fang Huang ◽  
Shuguang Li ◽  
Feng Dong ◽  
Qiuli Li ◽  
Fukun Chen ◽  
...  

1998 ◽  
Vol 43 (S1) ◽  
pp. 75-75
Author(s):  
S. Li ◽  
Y. Nie ◽  
D. Liu ◽  
S. R. Hart ◽  
Z. Zhang ◽  
...  

2015 ◽  
Vol 49 (4) ◽  
pp. 321-342 ◽  
Author(s):  
Yunhui Zhang ◽  
Shouting Zhang ◽  
Mo Xu ◽  
Xingkui Jiang ◽  
Junjun Li ◽  
...  

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