"deeper strata" is a correct and usable phrase in written English.
You can use it when referring to levels of things that can be divided into "strata" such as geology, sociology, or economy. For example, "The research revealed deeper strata in the geology of the area."
In his 1999 manifesto, "Minnesota Declaration," Mr. Herzog wrote: "There are deeper strata of truth in cinema, and there is such a thing as poetic, ecstatic truth.
The sequence in the fossil record from simple animals and plants in the ancient, deeper strata to the more complex, recent forms found near the surface represented a progressive development, Agassiz agreed, but those different animals and plants did not arise because of interactions between populations and external environmental changes, as Darwin argued.
In addition, the depth of the borehole is 150 m; there is no information of the deeper strata.
The overpressure caused by hydrocarbon generation can fracture deeper strata and result in regional fractured network for hydrocarbon migration.
The gas content and gas/water production data were also plotted, showing that the strata shallower than 700 m is of better gas resources and recovery rate than the deeper strata.
Far from being limited to remove extraneous salt deposits from the surface of the sample, DMC washing was found to completely remove one and to affect the composition of deeper strata in the other.
There is a deeper stratum".
These exquisitely evoked scenes are just as formative as the awful secrets at the novel's deepest strata.
Leonardo recognised that imagination begins in deep strata of the mind; he got ideas by seeing faces and landscapes in the cracks and stains of walls, just like the ancients who gave the constellations names as if the sky were full of pictures.
In deep strata, porosity does not necessarily change as depth increases.
There are a variety of hydrocarbon reservoirs in the deep strata of sedimentary basins.
