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Questions related from Houxiang Shan
IF we think the granitic or felsic magma in study is evolved from fractionation crystallization process and we wanna model this process. How to select the c0 and cL among your samples? Is it based...
06 September 2016 5,166 10 View
It is generally considered that significant deviations of zircon δ18O values from the mantle value directly or indirectly result from intra-crustal recycling. Intra-crustal recycling is defined as...
14 February 2016 6,976 2 View
As massif type anorthosites are in fact characteristic of Proterozoic time, not Archaean, and the Archaean anorthosites are quite different. So I am not sure whether Archean anorthosites can...
27 January 2016 4,092 5 View
The MgO contents under study range from 8-16%. I guess one is high degree of partial melting of the mantle peridotites, and another is olivine cumulates. Can anyone recommond some related...
24 July 2015 1,855 11 View
1. I once attributed "angular with irregular shape" of zircon to "relatively short-distance transportation and weak rounding". However, now I think the crushing procedure is very likely to produce...
30 May 2015 9,030 10 View
Can we say that for a single sample, metamorphic zircon domains yield lower 176Lu/177Hf ratios but higher εHf (t) values than magmatic domains? Is it suitable for all kinds of rocks? I ask this...
01 May 2015 6,558 8 View
I have known some indicators, like negative Zr anomalies, low Th, Zr and LREE contents, low La/Sm, (Th/Ta)N, Th/La and high Nb/La ratios. But I don’t know whether these are sufficient and robust...
04 February 2015 2,974 8 View
