The signatures of the rocks are interpreted as having an intra-plate geochemical signature that may be attributed to arc-rifting.

The geochemistry notes that fractional crystallization process within the magma chamber links the lavas with the tuffs and gives intra-plate as well as subduction geochemical signatures.

This geochemical signature arises from the mixing of near-surface materials such as subducted slabs and continental sediments, in the mantle source.

This, and other observations, have been interpreted as indicating that the distinct geochemical signature of alkali basalts results from inclusion of a component of subducted slab material.

Each of these tectonic settings typically produces volcanic rocks with specific geochemical signatures such as being enriched or depleted in certain elements.

The ancient record on Earth provides an opportunity to see what geochemical signatures are produced by microbial life and how these signatures are preserved over geologic time.

Numerous studies have addressed the geochemical signature of the lavas present on Iceland and in the north Atlantic.

The occurrence of boninitic geochemical signatures offers evidence that plate tectonic processes may be responsible for the creation of the belt.

They then used a scanning electron microscope to find the pendants' unique geochemical signature.

Complicating matters is the fact that all three of the above hypotheses could contribute to the anomalous geochemical signature of this giant crater.