What is the feature of sedimentary rock?

Question

Sedimentary rocks which have visible grains but dont contain fossils have a feagture which allows geologists to work out whether the rock is the right way up or not. What is this feature?

Answer 1

smooth texture on top? layer of deposits on only one side? I kinda dont get what your asking lol

Answer 2

Most sedimentary rocks are composed of particles which settle through water (or air)

Generally quiet water deposition results in nearly horizontal layers

Layers are called strata (stratum: singular) (like data and datum)

Greater than 1cm thick: beds

Less than 1cm thick: laminae

Differences through time result in visible layering

Answer 3

1- direction of fining - generally speaking if there are repeated sequences of the grains going from coarser to finer

"graded bedding is perhaps the most usefull index of stratigraphic order availible to the structural geologist"  John Roberts, The Macmillan field guide to geological structures"  1989 p28 The the coarser is at the bottom, finer at the top

2 - sedimentary structures such as sole casts

3 -Tangential cross bedding -however angular cross bedding is not usually able to give way up information