Planar Lamination On Stratigraphic Column

Look for sedimentary structures that are characteristic of a specific environment or process.

Planar lamination on stratigraphic column.

Planar lamination or stratification. The late jurassic stratigraphic column of saudi arabia. Mud rip up clasts detrital peloids and petrified woody debris are common. Evaluate how the vertical sequence of sedimentary structures changes to refine or correct your environmental interpretations.

The original depositional layering is tilted such tilting not being the result of post depositional deformation cross beds or sets are the groups of inclined. Estimate the thickness of the unit. The planar laminated to low angle cross stratified facies typically shows fine lamination that is geometrically arranged in bed sets having horizontal to low angle cross stratification. Divide different units according to the lithology.

Use appropriate symbols when drawing the stratigraphic column. Thin lenses and stringers of igneous pebble conglomerate occur near the base of the unit. Steps when drawing a stratigraphic column photo by huan cui 1. Planar lamination and large scale trough cross stratification are abundant.

In geology cross bedding also known as cross stratification is layering within a stratum and at an angle to the main bedding plane. Primarily finer sands with layers of mud. The sedimentary structures which result are roughly horizontal units composed of inclined layers. Here palaeocurrent indicators are south south eastward mean resultant azimuth 145.

Interpreting stratigraphic columns step 1. Here are some example stratigraphic columns to think about. Cross stratification angles vary from 0 to 20 fig. Recognize characteristic sedimentary structures in each unit.

If you hypothesized that set of a fining upward sandstones were turbidites which have planar lamination and current ripple cross lamination but there is also trough cross stratification in a number of the beds ask yourself if there is a way for trough cross stratification to form in turbidites. Posted by dawn sumner at 10 24 am. Wave action intensely affects lower shoreface only during storm events. In addition to the mega ripples planar lamination low angle lamination 4 8 and hummocky cross stratification within the beds are also present.

Through transect of exposed strata along the coppermine river. Planar lamination present if not disrupted by bioturbation. Generalized stratigraphic column of the husky creek fm. Evaluate how the vertical sequence of sedimentary structures changes to refine or correct your environmental interpretations.

Turbidites vs river channel deposits.