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Three-dimensional modeling of clinoforms in shallow-marine reservoirs (view source)
Revision as of 13:02, 21 October 2015
, 13:02, 21 October 2015→Plan-View Clinoform Geometry
To specify highly lobate plan-view clinoform geometry, characteristic of a fluvial-dominated delta ([[:File:BLTN13190fig3.jpg|Figure 3C]]), the user specifies a larger value for the clinoform in the depositional dip direction, BLTN13190eq47, than for the clinoform in the strike direction, BLTN13190eq48. For a highly elongate or near-linear plan-view clinoform geometry, characteristic of a wave-dominated shoreline ([[:File:BLTN13190fig3.jpg|Figure 3A, B]]), the user specifies a much larger value for the clinoform in the depositional strike direction, BLTN13190eq49, than for the clinoform in the dip direction, BLTN13190eq50. Data describing clinoform extent in depositional dip and strike directions can be extracted from published data on the dimensions of ancient shorelines or by analysis of their modern counterparts (e.g., tables 1, 2 in Howell et al., 2008a).
To specify highly lobate plan-view clinoform geometry, characteristic of a fluvial-dominated delta ([[:File:BLTN13190fig3.jpg|Figure 3C]]), the user specifies a larger value for the clinoform in the depositional dip direction, BLTN13190eq47, than for the clinoform in the strike direction, BLTN13190eq48. For a highly elongate or near-linear plan-view clinoform geometry, characteristic of a wave-dominated shoreline ([[:File:BLTN13190fig3.jpg|Figure 3A, B]]), the user specifies a much larger value for the clinoform in the depositional strike direction, BLTN13190eq49, than for the clinoform in the dip direction, BLTN13190eq50. Data describing clinoform extent in depositional dip and strike directions can be extracted from published data on the dimensions of ancient shorelines or by analysis of their modern counterparts (e.g., tables 1, 2 in Howell et al., 2008a).
{| class=wikitable
|+ Table 2. Clinoform Modeling Parameters Used in the Clinoform-Bearing Model of the Ferron Sandstone Member Reservoir Analog
|-
! Parameter || Description || Min–Max Values || Units
|-
| tD || Length of top ellipse in depositional dip direction || 6100 || m
|-
| tS || Length of top ellipse in depositional strike direction || 4050 || m
|-
| L || Clinoform length || 60-495 || m
|-
| bD || Length of base ellipse in depositional dip direction (= tD + L) || 6160-6595 || m
|-
| bS || Length of base ellipse in depositional strike direction (= tS + L) || 4110-4545 || m
|-
| P || Shape function exponent || 2 || None
|-
| pO || Axis of progradation relative to bounding surfaces || 32% || None
|-
| θ || Clinoform progradation angle relative to north || 274 || °
|-
| S || Clinoform spacing || 25 || m
|}
===Cross-Sectional Clinoform Geometry===
===Cross-Sectional Clinoform Geometry===