Assertion: magma | /r/HasProperty | encountered in situ
Facets:
value: during geothermal drilling projects
type: TEMPORAL
value: twice in iceland
type: TEMPORAL
Source sentences:
text: While the study of magma has historically relied on observing magma in the form of lava flows, magma has been encountered in situ three times during geothermal drilling projects—twice in Iceland (see Magma usage for energy production), and once in Hawaii.