Аннотация
Magnetotelluric and seismic methods provide complementary information
about the resistivity and velocity structure of the subsurface on
similar scales and resolutions. No global relation, however, exists
between these parameters and correlations are often valid for only
a limited target area. Independently derived inverse models from
these methods can be combined, using a classification approach, to
map geologic structure. The method employed is based solely on the
statistical correlation of physical properties in a joint parameter
space and is independent of theoretical or empirical relations linking
electrical and seismic parameters. Regions of high correlation (classes)
between resistivity and velocity can in turn be mapped back and reexamined
in depth section. The spatial distribution of these classes, and
the boundaries between them, provide structural information not always
evident in the individual models. This method is applied to a 10
km long profile crossing the Dead Sea Transform in Jordan. Several
prominent classes are identified with specific lithologies in accordance
with local geology. An abrupt change in lithology across the fault,
together with vertical uplift of the basement suggest the fault is
sub-vertical within the upper crust.
Пользователи данного ресурса
Пожалуйста,
войдите в систему, чтобы принять участие в дискуссии (добавить собственные рецензию, или комментарий)