The phrase "a sharp base" is correct and usable in written English.
It can be used in contexts where you are describing a base that has a clear, distinct, or pointed quality, possibly in a musical, mathematical, or physical sense.
Example: "The composition features a sharp base that adds depth and intensity to the overall sound."
Alternatives: "a clear foundation" or "a distinct base."
Across 12 major league seasons, he has amassed 1,710 hits and developed a reputation for being an expert defensive outfielder, a sharp base runner and a great teammate.
The two recovered cores are characterized by alternating bioturbated hemipelagites (diatomaceous mud) and massive event deposits with a sharp base and upward fining grading structure.
The organic-rich darker layers generally display a sharp base, whereas the upward transition from dark to light layers is gradational and commonly strongly bioturbated (Tada et al. 2015b).
He's a relentless, fundamentally sharp base end who has learned how to turn the corner at the pro level.
Microcycles (0.1 0.8 m thick) usually have a sharp erosional base covered by reworked sponges, shells and intraclasts, interpreted as storm events.
Similarly to the findings of the review by Goto et al. (2012), the deposits in all of the study areas have a sharp erosional base, but other sedimentary characteristics vary between the sites.
The sharp base of Layer 1 is clearly visible with a diffuse boundary to the overlying yellow-brown Layer 2. The light-grey silt loam of Layer 3 is only visible in some of the exposure.
Note the sharp base and transitional top that has been reworked by bioturbation.
In the third, Lawrie hit a sharp ball to first base that popped out of Nick Swisher's glove.
This would let the algorithm to predict a sharp turn based on previous information.
Other soft-sediment deformation features and graded layers with sharp bases occur at Site U1466 at a depth of 731.4 mbsf (Fig. 6b).
