The phrase "a deep crack" is correct and usable in written English.
It can be used to describe a significant fissure or gap in a surface, such as in a wall, road, or geological formation.
Example: "The earthquake left a deep crack in the pavement, making it dangerous for drivers."
Alternatives: "a large fissure" or "a significant split".
He was swept into a crevasse, a deep crack in a glacier.
L 'AQUILA Italy — A deep crack runs through the wall of the Tiberti family's restored 19th-century farmhouse.
A deep crack in the coast, wide enough for two swimmers abreast, allows the pool to fill at higher tides for high jumps and sea lounging.
A pressure transducer to gauge water buildup, partly paid for by the city, was installed in a deep crack on the edge of the basin, with a satellite link sending back real-time data about the glacier's hidden waterworks.
While Hill jogged around the bases, the small afternoon crowd roaring, the batboy, John Viola, retrieved Hill's bat and noticed a deep crack in the handle, just above the place where Hill places his hands.
Ahern is a veteran of dangerous art: he – and visitors to the gallery – have survived the vertiginous Carsten Höller slides, and Doris Salcedo's Shibboleth, a deep crack running the length of the Turbine Hall.
It was found that the lamellar microstructure develops a deeper crack than the duplex microstructure that is related to significant crack bifurcation taking place near the surface region in the lamellar but not duplex microstructure.
They reveal the typical architecture of a laminar gypsum crust, with an outer opaque layer, a subsurface gypsum crystallization layer and a deeper cracked zone passing irregularly into the sound stone.
Three aluminum plates, one with a linear deep crack, another with a piecewise linear shallower crack and the third with a curved crack, were used to illustrate the accuracy and efficiency of both the proposed device and procedure for effective NDE.
"The snow has washed away to the point where people can punch through and potentially step in between two big straw bales, and that becomes a pretty deep crack," said Caley Denton, vice president for ticketing and consumer marketing for the Vancouver Organizing Committee, known as Vanoc.
Stretching for more than 2,500km (1,500 miles), the Mariana Trench is a very narrow, very deep crack in the ocean floor.
