Literal:
* The chasm in the earth was so deep, it seemed to swallow the sunlight.
* The climbers carefully navigated the narrow chasm separating the two peaks.
Figurative:
* There was a chasm of misunderstanding between the two friends after their argument.
* The political candidates stood on opposite sides of a chasm of opinion on the issue.
* The company's new product bridged the chasm between the two competing technologies.
Formal:
* The research paper explored the chasm between theory and practice.
* The historian examined the chasm in the historical record, leaving many unanswered questions.
The best way to use "chasm" depends on the specific situation and the intended meaning.