What's the adjective for marlites? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs marl and marline which may be used as adjectives within certain contexts.
“The UE consists of greenish marlaceous clays with silicon sandstone inter-layers, foraminifers, shales of ostracordes.”
“The Upper Eocene consists of greenish marlaceous clays with silicon sandstone inter-layers, foraminifers, shales of ostracordes and the teeth of fish.”
“It is lithologically represented by brownish-gray clays with jarosite tarnish and inter-layers of gray, fine-grained sandstones, and by marlaceous and sideritic concretions.”