Tidally Laminated Sediments

Accepted 25 may 2007.

Tidally laminated sediments.

Crockett1 received 24 august 2006. Preston martin 1 miguel a. Subglacial deformation of pre existing sediments may also produce laminated deposits in the form of glacitectonite and deformation till. Two major types of sequences can by destinguished.

In general the glen eyrie tidalite is similar to other carboniferous tidalites because the laminated sequence directly overlies a coal is well laminated directly above the coal and becomes more bioturbated and possesses more fine scale erosional features beginning several meters above the coal. In geology lamination is a small scale sequence of fine layers laminae. 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. Tk s rs sediments from the kap stewart formation in scoresby land are described and interpreted as tidally in d j fluenced detaic deposits.

Revised 3 march 2007. However structures from several millimetres to many centimetres. At d2 non cohesive sediment and b4 d1 cohesive sediment the critical shear stresses for seabed erosion or resuspension were estimated to be 0 11 and 0 07 0 09 n m 2 respectively. Sediment delivery from the fly river tidally dominated delta to the nearshore marine environment and the impact of el nin o andrea s.

Gon i 2 and john s. Published 31 january 2008. The bay is represented in the model by 50 segments composed of two layers. A horizontally laminated black mudstone followed by flaser or lenticularly bedded sandy mudstone and erosively overlain by cross bedded channel sandstone.

One representing the channel 5 meter depth and the other the shallows 0.