hypabyssally
/ˌhaɪpəˈbɪsəli/
adverb
- In a way that relates to or is characteristic of hypabyssal rock formation.
- The geologist explained how the dike was emplaced hypabyssally.
- The magma cooled hypabyssally, forming a fine-grained rock.
- These minerals crystallized hypabyssally, at a depth between volcanic and plutonic zones.