isopach การใช้

• Isopach maps detail the variations in thickness of stratigraphic units.
• Isopach maps are utilized in hydrographic survey, stratigraphy, sedimentology, structural geology, petroleum geology and volcanology.
• An "'isopach map "'illustrates thickness variations within a tabular unit, layer or stratum.
• However, the high porosity of the reservoir rock does cause an increase in seismic amplitude which can be used with an isopach map to determine net pay.
• To the north of the Uinta / Cottonwood arch during the Sevier orogeny there was a basement high area gently dipping to the north identified by isopach maps.
• Unfortunately the terms isopach and isochore are widely confused, and many times maps of True Vertical Thickness ( TVT ), which by definition are isochore maps, are incorrectly labeled isopach maps.
• Unfortunately the terms isopach and isochore are widely confused, and many times maps of True Vertical Thickness ( TVT ), which by definition are isochore maps, are incorrectly labeled isopach maps.
• An "'isopach map "'is similar to an "'isochore map "', but these terms actually describe different methods of displaying thickness variations within a layer.
• When the layer shown is inclined, as is usually the case, the thicknesses displayed in an isochore map of the layer will be greater than the thicknesses displayed in an isopach map of the same layer.
• Thus, an isochore and isopach map are the same only when both the top and bottom surfaces of the layer shown are horizontal ( i . e ., the true stratigraphic and true vertical thicknesses are the same ).