Data for: Wall fracturing versus mechanical instability as competing intrusion mechanisms of dikes: Insights from laboratory experiments

Igneous dike intrusion is a primary crust-forming process. Understanding
its governing mechanism is very crucial for studies related to the
lithosphere. We performed liquid injection experiments in the laboratory
with two new crust analog model materials, i) ultrasound transmission gel
(USTG) and gel wax. To conduct a properly scaled model experiment, we test
their rheology using an Anton Paar M302e rheometer. The measured
rheological data were presented in this present data repository. We
identified three mechanisms from our laboratory studies: a) fracturing, b)
interfacial instability, and c) hybrid, i.e., a combination of both. These
three mechanisms give rise to distinct 3D geometries. To quantitatively
analyze their geometric shapes, we performed fractal, aspect ratio, and
skewness-kurtosis analysis. The procedure and the data collected during
the analysis were also presented in the current data repository.