Miyashiro {GCDkit} | R Documentation |
Assigns data for SiO2 vs. FeOt/MgO diagram
into Figaro template (list 'sheet
') and appropriate values into
'x.data
' and 'y.data
'
Miyashiro()
Diagram in SiO2 vs. FeOt/MgO space, proposed by Miyashiro (1974), defines the following fields:
Tholeiite Series
Calc-alkaline Series
As the boundary was defined by Akiho Miyashiro as straight line passing through two specific points, no limits of diagram validity for ultrabasic and high-silica rocks were given. Thus, the boundary implemented in GCDkit script spreads from FeOt/MgO=0 to SiO2=100 %.
sheet |
list with Figaro Style Sheet data |
x.data |
SiO2 weight percent |
y.data |
FeOt/MgO weight percent |
Vojtěch Erban, erban@sopky.cz
& Vojtěch Janoušek, vojtech.janousek@geology.cz
Miyashiro A (1974) Volcanic rock series in island arcs and active continental margins. Am J Sci 274, 321-355. doi: 10.2475/ajs.274.4.321
data(blatna) accessVar("blatna") # Plot the diagram plotDiagram("Miyashiro", FALSE) #To Classify data stored in WR classify("Miyashiro")