Determination of the Lithosphere-Asthenosphere Boundary using program LABWA2015

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Leszek Czechowski


Lithosphere-Asthenosphere Boundary (LAB) is a lower boundary of the lithospheric plate, so, it is an important tectonic boundary. We present the package of numerical program LABWA2015 developed for simple calculations of position of LAB. It assumes isostatic state and uses gravity as well as topographic data. However, program provides better results if additional geophysical data are used, e.g. seismic data about position of Moho. If position of LAB is determined by other methods, the package can be used for determining density or thermal properties of lithosphere and asthenosphere. Contrary to earlier methods, LABWA2015 uses the full equation of thermal conduction. Problem of the lack of isostasy in some regions is also discussed.



Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics


lithosphere, isostasy, asthenosphere, determination of LAB, geoid anomaly, mantle convection and isostasy


Published: 2018-05-10 07:21


CC BY Attribution 4.0 International

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