What Is Lamination In Geology

Laminae back to glossary index.

What is lamination in geology.

Other articles where lamina is discussed. California s sierra nevada mountains formed by delamination as seen from the international space station. Lamination definition act or process of laminating. 5 weathering erosion and sedimentary rocks.

This is planar cross lamination. Lamina that occurs in sedimentary rocks laminae are normally smaller and less pronounced than bedding lamination is often regarded as planar structures one centimetre or less in thickness whereas bedding layers are greater than one centimetre. Sinuous and linguoid ripples have lee slope surfaces that are curved generating laminae that dip at an angle to the flow as well as downstream. Laminated definition formed of or set in thin layers or laminae.

These internal structures are arranged within wacke beds in a regular sequence. However structures from several millimetres to many centimetres. Thus lamination consists of thin units in bedded or layered sequence in a natural rock succession whereas stratification consists of bedded layers or strata in a geologic sequence of interleaved. More beds and the term lamina is sometimes applied to a unit less than one centimetre in thickness.

A perfectly straight ripple would generate cross laminae that all dipped in the same direction and lay in the same plane. Get used to using this terminology in your descriptions of strata. Free textbook for college level introductory geology courses. Figure 3 3 is a chart that gives you all the official terminology.

6 metamorphic rocks back to glossary index. An introduction to geology. They appear to result from the action of a single current flow and are related to changes in the hydraulics of the depositing current. Parallel lamination is widespread and convolute bedding is usually present.

Thin less than 1 cm beds of rock. Shale is a fine grained clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments silt sized particles of other minerals especially quartz and calcite. The state of being laminated. 3 2 1 stratification is officially subdivided into bedding and lamination de pending upon the thickness of the strata and bedding and lamination are in turn subdivided according to thickness.

In geology lamination is a small scale sequence of fine layers laminae.