Shell's (Bernard's) Alluvial Point Bar Model: Sedimentary Features Diagnostic of Alluvial Point Bar Sands

H. A. Bernard and C. F. Major

Search and Discovery Article #60003 (1999)

H EPR MEMORANDUM REPORT 23, HOUSTON, TEXAS, OCTOBER 1956

 

Exportation of this document is subject to license under the Export Control Act of 1949. 

SHELL DEVELOPMENT COMPANY EXPLORATION AND PRODUCTION RESEARCH DIVISION

Introduction

Alluvial Plain Environments

Meander Belt Environments
Point Bar Environment
Natural Levees
Abandoned Channels, Cutoff Meanders, and Channel Plugs

Point Bar Depositional Areas Related to Sedimentary Structures

Area of Poorly Bedded and Poorly Sorted Graveliferous Sands
Area of Giant-Ripple Bedded Sands
Area of Horizontally Bedded Deposits
Area of Small-Ripple Bedded Fine Sands

Miscellaneous Sedimentary Features of Point Bar Deposits

Contorted Bedding
Slumping
Initial Dips
Silt and Clay Drapes
Mud Balls
Borings
Other Miscellaneous Features

Organic Remains of Point Bar Deposits
References
Figures 1-66

FIGURES and TABLE

Table 1
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