Earth’s crust: identified a piece beneath Australia

Finally, we will be able to know what lies beneath the Earth’s surface. Scientists don’t have to drill or even use superfine lasers on the minerals embedded in the beach sand. This is the technique of a new study. It strives for a part from Earth’s crust dating from 4 billion years ago, is the size of Ireland. It stayed below theAustralia western influence on the geological development of the region over the past millions of years.

When we compare our results with existing data, it appears that many regions of the world have experienced similar times for early cortex formation and preservation. This points to a significant change in Earth’s evolution some 4 billion years ago, when the meteorite bombardment disappeared, the crust stabilized and life on Earth began to regulate.

Maximilian Droelner, PhD student in geology and lead author of Curtin University in Australia

The scholars used an ablation laser laser induction coupled plasma mass spectrometry. This is to date the grains and compare them with others to discover their origin. So the team got the data on crystals of the subsoil of this particular Australian region. The grains’ original erosion point was discovered, the forces used to create them, and the modeling of geology over time.

The edge of the ancient crust appears to mark an important crustal boundary that determines where economically important minerals can be found. The identification of ancient crustal remnants is important for the future of optimal exploration of sustainable resources.

Milo Parham, geological survey supervisor at Curtin University

However, it is difficult to predict crustal displacements and the vortices of the underlying warm mantle, as well as to map them retrospectively. The results of the research could help scientists study the features of other planets and their possible extraterrestrial life.