Willem Kruger

4 Questions 8 Answers 0 Followers

Questions related from Willem Kruger

Negative U and Th anomaly in olivine clinopyroxenites?

Hi, I'm having some trouble deciphering the origin of well developed negative U and Th anomalies in cumulate ultramafic rocks. All my textbooks seem to make no mention of such anomalies. I have...

12 October 2016 4,492 7 View

Does anyone know what kind of symplectite this is?

In some thin sections I'm working on I've noticed a type of intergrowth in clinopyroxene. The symplectite is usually partially or completely enveloped in another grain of clinopyroxene. In the...

01 February 2016 8,467 5 View

How do I identify planar deformation features in olivine?

Hi, Can anyone assist me in identifying the following texture in olivine? The rock comes from a confirmed meteorite impact site and I suspect it might be planar deformation features. However I...

04 December 2015 7,707 4 View

What is the effect of solid solution in minerals on their partition coefficients?

If I understand correctly, partition coefficients (concentration in solid / concentration in melt) are usually determined according to the weight percentage of the material involved. However, the...

11 May 2015 815 4 View