[2] Her work is broadly centred in the topic of paleoecology and how ancient organisms interacted with their environment and whether they were capable of surviving under extremely hard conditions.

[3] During Campbell's high school years she studied many fields including: English, French, Humanities, Biology, Chemistry and Math.

[5] Shortly after a geology PhD at University of Southern California in the USA titled, 'Dynamic Development Of Jurassic-Pliocene Cold-Seeps, Convergent Margin Of Western North America' Campbell moved to the University of Auckland in New Zealand, eventually rising to full professor.

Becoming the head of the astrobiology research group in earth sciences, she has been able to delve deeper into her investigation through experimentation involving the activities of mineral and geothermal resources through observing gas hydrates and hydrocarbon seeps.

[2] In order to explore this she utilises trace fossils for indicators of ancient shorelines and sea level changes,[5] sedimentology, and paragenesis.