Definition
A sedimentary rock is a lithified deposit of detrital particles such as clay, silt, sand, or gravel; of (bio-)chemical precipitates (including evaporites) and of organic material.
Detrital (or clastic) sedimentary rocks consist of preexisting solid particles that are eroded somewhere, transported (by gravity alone, wind, water, or ice) and deposited. The main detrital minerals are feldspar, quartz, and clay minerals, all of which are stable at low-temperature aqueous conditions; due to the comparative greater resistance of quartz, however, quartz is more common than feldspar. Many minerals common in the continental crust do not (or only rarely) survive the exogenic processes of weathering, erosion, transport, and diagenesis. Thus, many clastic sedimentary rocks are largely made of only few minerals. Accessory minerals are therefore of great interest because they can deliver specific information on provenance, climate and transport.
In chemical sediments, water-soluble...
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer-Verlag Berlin Heidelberg
About this entry
Cite this entry
Arndt, N. (2015). Sedimentary Rock. In: Gargaud, M., et al. Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44185-5_1416
Download citation
DOI: https://doi.org/10.1007/978-3-662-44185-5_1416
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-44184-8
Online ISBN: 978-3-662-44185-5
eBook Packages: Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics