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why the GBG - Coggle Diagram
why the GBG
what the question you are trying to answer?
limit of previous studies
FEW studies are leveraged by 2D well-exposed transect from Interior to the basin
which evidence (petro? geochem?) are still reliable are less constrained
**therefore, distinguishing overlapping of two generic models and describing major features from multiple perspectives (field relation, thickness, cross-cutting, geochemical, petrographic features are important) and relavent conclusion drew from the analysis is necessary for further first-order prediction on similar situation
what evidence might be obscured?
what evidence might be still available? to distinguish models
reflux - strata bound quite different from
conceptual model
2D transect or even 3D outcrop are preferred
because of its privilege relating to draw field relation
and cross cutting
reservoir application: what facies are likely to be preserved pores?
not just multiple stages of dolomitization under the same generic model can happen, but different generic models can overlap
dolomitization associated with different generic models could complex the stories and make the prediction more difficult
so contentious
generic models of dolomitization resulting massive dolomite is critical at understanding and predicting the characteristics of dolomite (locations, textures, cross-cutting relationship, thickness variations etc) and from a first order
to form massive dolomite, 3 fundamental conditions
need to be satisfied
microbial related dolomite
diffusion of Mg ions rather than convection
real dolomite or just high-Mg calcite???
isoclated platforms in the Nanpanjiang basin and Yangtze platform - multiple 2D transect exposing the entire stratigraphic architecture from the interior to the basin in multiple locations
briefly introduce the basic temporal and spatial features of the Lower Triassic dolomite (stratigraphic achitecture of the dolomite: thickness, occurred stratigraphic interval, present in the Yangtze platform and isolated platforms in the Nanpanjiang basin
Guanling, Daye, Yelang Fm.
Basin-wide trend of dolomitization
why the GBG is great to answer the question