The phrase "a mere slice of" is correct and usable in written English.
It can be used to describe a small or insignificant portion of something larger, often to emphasize that it is not representative of the whole.
Example: "The report provided a mere slice of the overall data, leaving out crucial information."
Alternatives: "a small portion of" or "a tiny fragment of".
The focus of Greg Barker's film is on diplomacy — a mere slice of the duties undertaken by the outgoing Administration, but more than enough to fill an hour and a half.
While Ecuador's borders contain a mere slice of the Amazon, the rainforest here is diverse, with quiet blackwater lagoons, raging chocolately rivers, dense tree canopies and flooded forests.
Uncovered in the hamlet of Crosby Garrett, near Kirkby Stephen, in May, the helmet - complete with mask - is more than a mere slice of Roman history.
History shows that honoring exemplary art has always been a mere slice of the Oscar pie.
The book includes 17 pieces of journalism a mere slice of the work that Mitford produced over the course of a 40-year career in letters, but a choice one.Jane Smiley contributes a brief but admiring preface to the collection, noting that "Above all things, Mitford liked a worthy opponent, and her weapons of choice were factual accuracy and a tone of amazement".
The focus of Greg Barker's film is on diplomacy a mere slice of the duties undertaken by the outgoing Administration, but more than enough to fill an hour and a half.
Many of the portals tailored to demographic groups are in fact directories, or scan mere slices of the Internet.
I want a thin, elegant slice, a mere sliver of sponge to nibble with a cup of herb tea.
At Gibsons Bar & Steakhouse in Chicago, one of the highest-grossing independent establishments in the country, gimlets are poured as if patrons requested doubles, and full-size fruit pies are cut in a mere four slices.
I felt it needed a canvas more majestic than a mere bowl of yogurt or slice of toast.
A spirited gingery peanut sauce, for instance, gilded the chicken satay, a skewer of whole succulent nuggets (not simply one threaded piece); a refreshing wrap of lettuce captured a savory sauté of duck, mango, buttery pine nuts and a lick of hoisin sauce; and a mere dust of flour crisped slices of squid tossed with salt, pepper and garlic.
