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→Rift geometry and geographic limits
At the southern end of the SVG, the FGS becomes narrower, its top becomes progressively deeper, the major western [[graben]] boundary [[fault]] becomes less distinct south of Block 16/17, and the graben merges with the eastern part of the Witch Ground Graben and the northern part of the Central Graben ([[:file:M115CH02FG01.jpg|Figure 1]]). The southeastern margin of the graben is also difficult to define precisely as the [[Utsira High]] becomes deeper southward and at least thin units of Upper [[Jurassic]] [[strata]] extend across this area ([[:file:M115CH02FG03.jpg|Figure 3]]).
At the southern end of the SVG, the FGS becomes narrower, its top becomes progressively deeper, the major western [[graben]] boundary [[fault]] becomes less distinct south of Block 16/17, and the graben merges with the eastern part of the Witch Ground Graben and the northern part of the Central Graben ([[:file:M115CH02FG01.jpg|Figure 1]]). The southeastern margin of the graben is also difficult to define precisely as the [[Utsira High]] becomes deeper southward and at least thin units of Upper [[Jurassic]] [[strata]] extend across this area ([[:file:M115CH02FG03.jpg|Figure 3]]).
Within the SVG the location of the thickest sequence of Upper [[Jurassic]] [[strata]] generally corresponds with the deepest axis of the [[graben]], defined at base Upper Jurassic level, close to the western margin ([[:file:M115CH02FG03.jpg|Figure 3]], [[:file:M115CH02FG04ljpg|Figure 4]], [[:file:M115CH02FG05.jpg|Figure 5]]). Several sub-basins (Vana, Vilje, and Ve; see www.npd.no) can be identified, partially separated by northwest–southeast orientated intragraben [[fault]]s that probably follow deeper crustal features along the Tornquist structural trend ([[:file:M115CH02FG03.jpg|Figure 3]]).
Within the SVG the location of the thickest sequence of Upper [[Jurassic]] [[strata]] generally corresponds with the deepest axis of the [[graben]], defined at base Upper Jurassic level, close to the western margin ([[:file:M115CH02FG03.jpg|Figure 3]], [[:file:M115CH02FG04.jpg|Figure 4]], [[:file:M115CH02FG05.jpg|Figure 5]]). Several sub-basins (Vana, Vilje, and Ve; see www.npd.no) can be identified, partially separated by northwest–southeast orientated intragraben [[fault]]s that probably follow deeper crustal features along the Tornquist structural trend ([[:file:M115CH02FG03.jpg|Figure 3]]).
==Stratigraphic units and structural elements==
==Stratigraphic units and structural elements==