Sedimentaire gesteentes - Siltite

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Siltite

last modified by TerraIndex TerraIndex

on 2021/09/30 15:18

Table of Contents

A compact, weakly metamorphosed rock formed by alteration of siltstone, mudstone, or silty shale.

Characteristics

A compact, weakly metamorphosed rock formed by alteration of siltstone, mudstone, or silty shale. Siltite is more indurated than mudstone or shale and lacks either shale fissility or slate-like cleavage. Siltite differs from argillite in that silt-size grains (0.002 to 0.062 mm) dominate the matrix rather than clay-size particles (<0.002 mm). Siltite differs from siltstone, mudstone, or shale in that it exhibits very low to low grade metamorphic or diagenetic layer silicate and feldspar alteration to sericite, chlorite, and albite.

References

NEN-EN-ISO 14688-1:2019

https://geology.com/rocks/siltstone.shtml

Siltite

Group	Metamorphic sedimentary rock
Texture	Fine grained
Clasts	0.008mm-0.06mm
Hardness	Medium hard
Color	Gray, brown, or reddish brown.
Minerals	A mixture of clay minerals, micas, feldspars, and quartz.
Touch	Smooth to rough
Image	Siltite

Contents

Characteristics

References

Siltite