The phrase "a marked deviation from" is correct and usable in written English.
It can be used to indicate a significant difference or departure from a standard, norm, or expectation.
Example: "The results of the experiment showed a marked deviation from the predicted outcomes, prompting further investigation."
Alternatives: "a significant departure from" or "a notable divergence from".
The comparison with theory shows a marked deviation from the existing theory.
In conditions of temperature abuse the system behaved like microperforated packaging, resulting in a marked deviation from the target atmosphere.
At the same time, a marked deviation from the empirical equation (e.g. the Fox equation) was noticed after curing.
The approach to a private company was "a marked deviation from her earlier stand that public sector undertakings can change the industrial map of West Bengal," the newspaper said.
At large depth there is a marked deviation from the exponential behavior, but this is not important in determining the growth law, because the fraction of live cells is very low there, and greater depths also mean spherical shells with smaller volume, which weigh less in the growth law.
The Court of Appeals clearly disagreed with the District Judge's conclusion that consideration of the §3553(a) factors justified a sentence of probation; it believed that the circumstances presented here were insufficient to sustain such a marked deviation from the Guidelines range.
The state emphatic has to be commented on especially: based on our experience with other emotion databases [23], any marked deviation from a neutral speaking style can (but need not) be taken as a possible indication of some (starting) trouble in communication.
On the contrary, there is a marked deviation of these results from those for the conventional Nernst layer model, i.e. this simplified approach is not applicable for quantitative description of the process, even though it provides its correct qualitative picture.
We divided PFOS exposure into tertiles to quantify the difference between the highest and lowest third of the population and to evaluate whether any marked deviations from a linear association was evident.
Altered states of consciousness (ASC) represent a marked deviation in the subjective experience or psychological functioning of a normal individual from her/his usual waking consciousness [1].
The temporary relocation to California's Joshua Tree desert doesn't represent a marked deviation in their style – not even an appearance by stray Red Hot Chili Pepper Josh Klinghoffer manages to ruin things.
