Silvia Campagnola

4 Questions 11 Answers 0 Followers

Questions related from Silvia Campagnola

Can anyone help me in calculating the decompression rates from VNDs using Toramaru (1995,2006) equation?

I would like to insert the decompression rates calculated from VNDs and formulations of Toramaru (1995,2006). I have some problems with the resolution of the equation, in particular with the X0...

05 March 2014 9,551 2 View

Can anyone explain me the difference between MER and MDR? And what about formulae?

I would like to know the difference between mass eruption rate and mass discharge rate. I found only the formula of the column height in Wilson 1978 in which appears the MER, can anyone give me...

01 October 2013 9,852 5 View

Can anyone explain to me the black rim around leucites?

Often around leucites, we have found a black ring. Is it possible that it is a fracture or dissolution?

10 April 2013 4,774 3 View

Can I have a foiditic residual glass and a tephri-phonolitic bulk in a closed system?

I have leucites and some pyroxenes immersed in a foiditic residual glass (red in the image). I melted everything in an oven, so in a closed system, and I got a tephri-phonolitic bulk (in blue)....

06 February 2013 5,858 12 View