| Shale Smear Factor Fig1.png|{{figure number|1}}Field example of clay smears separating sandstones from Frechen lignite mines, Germany (Modified from Weber et al.<ref name=Weber />). Note tapering of clay (black) away from the source bed and the compound nature of the clay smear in the fault zone. (No scale on original figure.) | | Shale Smear Factor Fig1.png|{{figure number|1}}Field example of clay smears separating sandstones from Frechen lignite mines, Germany (Modified from Weber et al.<ref name=Weber />). Note tapering of clay (black) away from the source bed and the compound nature of the clay smear in the fault zone. (No scale on original figure.) |
− | Shale-smear-factor-fig2.png|{{Figure number|2}}Figure 2-Smear factor algorithms for estimating likelihood of clay smear on a fault plane. (a) Clay smear potential (CSP) (Bouvier et al., 1989; Fulljames et al., 1996) given by the square of source-bed thickness divided by smear distance; (b) generalized smear factor, given by source-bed thickness divided by smear distance, with variable exponents; (c) shale smear factor (SSF) (Lindsay et al., 1993) given by fault throw divided by source-bed thickness. Methods (a) and (b) model the distance-tapering of shear-type smears, whereas method (c) models the form of abrasion smears. | + | Shale-smear-factor-fig2.png|{{Figure number|2}}Figure 2-Smear factor algorithms for estimating likelihood of clay smear on a fault plane. (a) Clay smear potential (CSP)<ref>Bouvier, J. D., C. H. Kaars-Sijpesteijn, D. F. Kluesner, C. C. Onyejekwe, and R. C. Van der Pal, 1989, [http://archives.datapages.com/data/bulletns/1988-89/data/pg/0073/0011/1350/1397.htm Three-dimensional seismic interpretation and fault sealing investigations, Nun River field, Nigeria]: AAPG Bulletin, v. 73, p. 1397-1414.</ref><ref>Fulljames, J. R., L. J. J. Zijerveld, R. C. M. W. Franssen, G. M. Ingram, and P. D. Richard, 1996, Fault seal processes, in Norwegian Petroleum Society, eds., Hydrocarbon seals-importance for exploration and production (conference abstracts): Oslo, Norwegian Petroleum Society, p. 5. </ref> given by the square of source-bed thickness divided by smear distance; (b) generalized smear factor, given by source-bed thickness divided by smear distance, with variable exponents; (c) shale smear factor (SSF)<ref name=Lindsay /> given by fault throw divided by source-bed thickness. Methods (a) and (b) model the distance-tapering of shear-type smears, whereas method (c) models the form of abrasion smears. |