if all bed boundaries are taken from mapped surfaces, there are no problems. Because this is almost never the case, problems arise when unmapped bed boundaries, including bed bases, are plotted on fault plane profiles by “isopaching down” from mapped surfaces. Errors arise due to confusion regarding apparent thickness. Errors in bed thickness lead to mistaken identity of what is juxtaposed along the fault as well as mistaken leak points and percent fill. | if all bed boundaries are taken from mapped surfaces, there are no problems. Because this is almost never the case, problems arise when unmapped bed boundaries, including bed bases, are plotted on fault plane profiles by “isopaching down” from mapped surfaces. Errors arise due to confusion regarding apparent thickness. Errors in bed thickness lead to mistaken identity of what is juxtaposed along the fault as well as mistaken leak points and percent fill. |