 |
| Titel |
Analytical solution for 3D surface uplift above flat-lying magma intrusions: Implications for sill emplacement and geodesy |
| VerfasserIn |
J. Scheibert, O. Galland |
| Konferenz |
EGU General Assembly 2012
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250068067
|
|
|
|
|
|
| Zusammenfassung |
| We will present a new analytical solution for the surface uplift associated with the
emplacement of axisymmetric sills and laccoliths. Our solution is based on the formulation of
a thin bending plate lying on an elastic foundation. In contrast to the classical models of sill
and laccolith emplacement based on a clamped bending plate, our model accounts for 3D
uplift, both upon and outside the intrusion.
We will show that the model’s behaviour is controlled by an elastic length l,
which is a function of the elastic properties of both the bending plate and the elastic
foundation. When a-l>5, with a the radius of the intrusion, the uplift is mostly
restricted upon the intrusion, and the model converges towards that of a clamped
plate for a-l> >5. In contrast, when a-l |
|
|
|
|
|
|