Looking - deeply - into the Earth's crust in Europe

Article Abstract:

Germany's Tiefbohrprogramm de Bundesrepublok Deutschland hole is the second deepest hole ever drilled into hard basement rock. It is 2.5 kilometers from its 10-kilometer goal. Unexpected findings have convinced many researchers that the additional $20 million needed to complete the project is justified.

Author: Kerr, Richard A.
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1993
Research, Physical geography

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Watching the Earth move

Article Abstract:

Synthetic aperture radar (SAR) interferometry is a new technique developed to observe movement in the Earth's crust from a satellite. SAR interferometry aboard the European Space Agency's ERS-1 satellite has demonstrated the ability to map small deformations that occur between earthquakes.

Author: Kerr, Richard A.
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
Innovations, Equipment and supplies, Synthetic aperture radar, Interferometry, Earth movements, Earth movements (Geology)

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Urals yield secret of a lasting bond

Article Abstract:

UREIS '95, an international study of the rock underneath the Ural Mountains, found that the thick crustal plate has remained in place, unlike other collisional mountain ranges. Artificial seismic waves showed that the plate has kept Europe and Asia together for 250 million years.

Author: Kerr, Richard A.
Publisher: American Association for the Advancement of Science
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
Natural history, Ural Mountains region, Seismic reflection method, Seismic reflection surveying

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Subjects list: Earth, Crust (Geology), Usage
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