minsorting: Assess settling equivalence of detrital components

In provenance: Statistical Toolbox for Sedimentary Provenance Analysis

Assess settling equivalence of detrital components

Description

Models grain size distribution of minerals and rock fragments of different densities

Usage

minsorting(
  X,
  dens,
  sname = NULL,
  phi = 2,
  sigmaphi = 1,
  medium = "freshwater",
  from = -2.25,
  to = 5.5,
  by = 0.25
)

Arguments

X	an object of class compositional
dens	a vector of mineral and rock densities
sname	sample name if unspecified, the first sample of the dataset will be used
phi	the mean grain size of the sample in Krumbein's phi units
sigmaphi	the standard deviation of the grain size distirbution, in phi units
medium	the transport medium, one of either "air", "freshwater" or "seawater"
from	the minimum grain size to be evaluated, in phi units
to	the maximum grain size to be evaluated, in phi units
by	the grain size interval of the output table, in phi units

Value

an object of class minsorting, i.e. a list with two tables:

mfract: the grain size distribution of each mineral (sum of the columns = 1)

mcomp: the composition of each grain size fraction (sum of the rows = 1)

Author(s)

Alberto Resentini and Pieter Vermeesch

References

Resentini, A, Malusa, M G and Garzanti, E. "MinSORTING: An Excel worksheet for modelling mineral grain-size distribution in sediments, with application to detrital geochronology and provenance studies." Computers & Geosciences 59 (2013): 90-97.

Garzanti, E, Ando, S and Vezzoli, G. "Settling equivalence of detrital minerals and grain-size dependence of sediment composition." Earth and Planetary Science Letters 273.1 (2008): 138-151.

See Also

restore

Examples

data(endmembers,densities)
distribution <- minsorting(endmembers,densities,sname='ophiolite',phi=2,
                           sigmaphi=1,medium="seawater",by=0.05)
plot(distribution,cumulative=FALSE)

provenance documentation built on Aug. 28, 2023, 5:07 p.m.