II. ApPLICATION OF GIS SPA TIAL ANALYSIS IN
GEOSCIENCES
A. 3D Vector Cut Analysis
Spatial analysis, spatial edit and spatial query are
important flags that can judge quality of basin modelling
software. And the establishment of basin 3D tectonicstratigraphic
framework and 3D vector cut is the key to
basin modelling software. Advantage of vector cut is that
the generated vector profile keeps original geometric
topological relationship. Vector cut is more efficient than
raster cut and vector cut technique is a kind of difficult and
crucial technique of space analysis. Efficient vector cut can
not only support petroleum pool-forming dynamics
simulation by making use of the simulation result of basin
3D tectonic-stratigraphic framework but also be a powerful
tool while analyzing passage system and reservoir of
petroleum system (Tian et aI., 2000).