The phrase "a deepening effect" is correct and usable in written English.
It can be used to describe an increasing intensity or significance of an effect or situation over time.
Example: "The new policy has a deepening effect on employee morale, leading to greater job satisfaction."
Alternatives: "an intensifying impact" or "a growing influence."
MR. MASUR cited, too, the deepening effect personal difficulties may have had on Ms. Mutter's musical interpretations.
These findings are all sleep deepening effects of a steady noise.
This suggests the local deepening effects of trees occur in flat-bedded as well as steeply dipping lithologies.
However, with rapid population growth, reduced arable land by subsistence farmers and migration to marginal lands, the deepening effects of climate change and continued marginalization of Horn of African economies in the global economy, there is increased pressure on the Horn's relatively scarce resources.
Atwood knows how to show us ourselves, but the mirror she holds up to life does more than reflect — it's like one of those mirrors made with mercury that gives us both a deepening and a distorting effect, allowing both the depths of human nature and its potential mutations.
The advent of Mrs. Thatcher's government brought further significant changes, which led in effect to a deepening and further embedding of Rothschild principles.
While Trump has promised a more effective campaign against the Islamic State than his predecessor, it's not yet clear what new steps he might take without creating dangerous side effects, such as a deepening a rift with NATO ally Turkey or incurring greater U.S. or civilian casualties.
Time and time again export-led growth has this effect – an increase in inequalities and a deepening of poverty for those at the bottom of the chain.
Common side effects include unwanted hair growth and a deepening of the voice.
One of the main problems now is a deepening crisis of confidence that is compounding the ill effects from the housing downturn.
