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Line 67: − − ''Literature on distributary-mouth-bar environments.''<ref name=Johnston_1922>Johnston, W. A., 1922, The character of the stratification of the sediments in the recent delta of the Fraser River delta, British Columbia, Canada: Jour. Geology, v. 30, p. 115-129.</ref> <ref name=Arnborg_1948>Arnborg, L. E., 1948, The delta of the Angerman River: Geog. Ann., Stockholm, v. 30, p. 673-690.</ref> <ref name=Fisketal_1954>Fisk, H. N., et al, 1954, Sedimentary framework of the modern Mississippi delta: Jour. Sed. Petrology, v. 24, p. 76-99.</ref> <ref name=Fisk_1955>Fisk, H. N., 1955, Sand facies of Recent Mississippi delta deposits: 4th World Petroleum Cong. Proc., Rome, sec. 1, p. 377-398.</ref> <ref name=Fisk_1961>Fisk, H. N., 1961, Bar-finger sands of the Mississippi delta: in J. A. Peterson and J. C. Osmond, eds., Geometry of sandstone bodies: AAPG Spec. Pub., p. 29-52.</ref> <ref name=Fiskandmcfarlan_1955>Fisk, H. N., and E. McFarlan, Jr., 1955, Late Quaternary deltaic deposits of the Mississippi River--local sedimentation and basin tectonics: in A. Poldervaart, ed., Crust of the earth, a symposium: Geol. Soc. America Spec. Paper 62, p. 279-302.</ref> <ref name=Kruit_1955>Kruit, C., 1955, Sediments of the Rhone delta, 1, Grain size and microfauna: Kon. Nederlands Geol. Mijnb. Gen. Verhand., v. 15, p. 397-499.</ref> <ref name=Scruton_1960 /> <ref name=Scruton_1955>Scruton, P. C., 1955, Sediments of the eastern Mississippi Delta: in Finding ancient shorelines: SEPM Spec. Pub. 3, p. 21-51.</ref> <ref name=Scruton_1956>Scruton, P. C., 1956, Oceanography of Mississippi Delta sedimentary environments: AAPG Bull., v. 40, p. 2864-2952.</ref> <ref name=Shepard_1956>Shepard, F. P., 1956, [http://archives.datapages.com/data/bulletns/1953-56/data/pg/0040/0011/2500/2537.htm Marginal sediments of the Mississippi delta]: AAPG Bulletin, v. 40, p. 2537-2623.</ref> <ref name=Shepardetal_1960>Shepard, F. P., F. B. Phleger, and T. H. van Andel, eds., 1960, [http://archives.datapages.com/data/alt-browse/aapg-special-volumes/sp21.htm Recent sediments, northwest Gulf of Mexico]: AAPG Special Publication 21, 394 p.</ref> <ref name=Allen_1965c>Allen, J. R. L., 1965, [http://archives.datapages.com/data/bulletns/1965-67/data/pg/0049/0005/0500/0547.htm Late Quaternary Niger delta and adjacent areas]: AAPG Bulletin, v. 49, p. 547-600.</ref> <ref name=Allen_1970>Allen, J. R. L., 1970, Sediments of the modern Niger Delta: in J. P. Morgan, ed., Deltaic sedimentation: modern and ancient: SEPM Spec. Pub. 15, p. 138-151.</ref> <ref name=Kolbandvanlopik_1966>Kolb, C. R., and J. R. Van Lopik, 1966, Depositional environments of the Mississippi River deltaic plain, southeastern Louisiana, ''in'' M. L. Shirley and J. A. Ragsdale, eds., Deltas: Houston Geol. Soc., p. 17-62.</ref> <ref name=Mikhailov_1966>Mikhailov, V. N., 1966, Hydrology and formation of river mouth bars: in Scientific problems of the humid tropic zone deltas and their implications: UNESCO, Proc. Dacca Symp., p. 59-64.</ref> <ref name=Shirley_1966>Shirley, M. L., ed., 1966, Deltas: Houston Geol. Soc., 251 p.</ref> <ref name=Fisherandmcgowen_1967>Fisher, W. L., and J. H. McGowen, 1967, Depositional systems in the Wilcox Group of Texas and their relationship to oil and gas: Gulf Coast Assoc. Geol. Soc. Trans., v. 17, p. 105-125.</ref> <ref name=Oomkens_1967>Oomkens, E., 1967, Depositional sequences and sand distribution in a deltaic complex: a sedimentological investigation of the post-glacial Rhone delta complex: Geologie en Mijnbouw, v. 46, no. 7, p. 265-278.</ref> <ref name=Oomkens_1974>Oomkens, E., 1974, Lithofacies relations in the Late Quaternary Niger delta complex: Sedimentology, v. 21, p. 195-221.</ref> <ref name=Colemanetal_1970>Coleman, J. M., S. M. Gagliano, and W. G. Smith, 1970, Sedimentation in a Malaysian high tide tropical delta: in J. P. Morgan, ed., Deltaic sedimentation: modern and ancient: SEPM Spec. Pub. 15, 312 p.</ref> <ref name=Ferm_1970>Ferm, J. C., 1970, Allegheny deltaic deposits: in J. P. Morgan, ed., Deltaic sedimentation: Modern and ancient: SEPM Spec. Pub. 15, 312 p.</ref> <ref name=Ferm_1977>Ferm, J. C., 1977, Allegheny deltaic deposits: in F. B. van Houten, ed., Ancient continental deposits: Benchmark Papers in Geology: Stroudsburg, Pa., Dowden, Hutchinson and Ross, 384 p.</ref> <ref name=Bagansetal_1975>Bagans, B. P., J. C. Horne, and J. C. Ferm, 1975, Carboniferous and Recent Mississippi lower delta plains: Gulf Coast Assoc. Geol. Soc. Trans., v. 25, p. 183-191.</ref> <ref name=Belt_1975>Belt, E. S., 1975, Scottish carboniferous cyclothem patterns and their paleoenvironmental significance: in M. L. Broussard, ed., Deltas, models for exploration: Houston Geol. Soc., p. 427-449.</ref> <ref name=Maldonado_1975>Maldonado, Andres, 1975, Sedimentation, stratigraphy, and development of the Ebro Delta, Spain: in M. L. Broussard, ed., Deltas, models for exploration, 2nd ed: Houston Geol. Soc., p. 311-338.</ref> <ref name=Coleman_1976>Coleman, J. M., 1976, Deltas: Processes of deposition and models for exploration: Continuing Education Publ. Co., Champaign, IL (now available from Burgess Publishing Co., 7108 Ohms Lane, Minneapolis, MN 55435), 102 p.</ref> <ref name=Horneetal_1978>Horne, J. C., et al, 1978, Depositional models in coal exploration and mine planning in Appalachian region: AAPG Bull., v. 62, no. 12, p. 2379-2411.</ref>
→Distributary-mouth-bar deposits
The lower two diagrams on [[:file:M31F17.jpg|Figure 2]] represent a sand isopach map of a distributary-mouth-bar system in which individual distributary-mouth bars have merged, forming a delta-front sand body type. The distributary pattern is shown as solid dark lines. A boring through the distributary channel itself would show very erratic sand distribution in the distributary channel. Electric-log responses and their variations are shown in the lower right-hand diagram of [[:file:M31F17.jpg|Figure 2]]. Most borings show a coarsening-upward sequence, with the sand body varying in thickness, depending on the location of the core with reference to the distributary channels themselves. In general, the nearer the boring to the axis of the distributary, the sharper the base of the sand body, and gradational contacts become less well defined. Distally (away from the distributary-channel axis), the sequence displays a much greater tendency toward a large transition from distal bar to distributary-mouth bar.
The lower two diagrams on [[:file:M31F17.jpg|Figure 2]] represent a sand isopach map of a distributary-mouth-bar system in which individual distributary-mouth bars have merged, forming a delta-front sand body type. The distributary pattern is shown as solid dark lines. A boring through the distributary channel itself would show very erratic sand distribution in the distributary channel. Electric-log responses and their variations are shown in the lower right-hand diagram of [[:file:M31F17.jpg|Figure 2]]. Most borings show a coarsening-upward sequence, with the sand body varying in thickness, depending on the location of the core with reference to the distributary channels themselves. In general, the nearer the boring to the axis of the distributary, the sharper the base of the sand body, and gradational contacts become less well defined. Distally (away from the distributary-channel axis), the sequence displays a much greater tendency toward a large transition from distal bar to distributary-mouth bar.
==River-mouth tidal-ridge deposits==
==River-mouth tidal-ridge deposits==