Schlumberger

Depositional environments


CodeNameParent CodeDescription
AEOL_FLUVAeolian Fluvial EnvironmentAEOLAn environment of deposition from rivers or relatively large streams in the Aeolian environment
AEOL_LAKEAeolian Lake/Lacustrine EnvironmentAEOLInland water body in the Aeolian environment
AEOL_WADI_SBKHAeolian Wadi/Sabkha EnvironmentAEOLSalt-flat in the Aeolian environment
AEOLAeolian/Eolian EnvironmentSILC_CLSTEnvironment characterized by eroding, transporting, and depositing wind activity.
ALUV_FANAlluvial Fan EnvironmentALUV_SEDMA sloping, fan-shaped body of coarse material deposited by a stream at the place where it emerges from an upland into a broad valley or a plain.
ALUV_FLPLAlluvial Flood Plain/Basins EnvironmentALUV_SEDMA strip of relatively flat land bordering an alluvial stream, underlain by overbank deposits.
ALUV_SEDMAlluvial Sediments EnvironmentCONTAn environment of deposition from a river or stream.
ALUV_SWMPAlluvial Swamp EnvironmentALUV_SEDMArea around alluvial stream of water-saturated ground supporting trees, shrubs and grasses.
TRANS_INSL_AMLG_CHNLAmalgamated Channels EnvironmentTRANS_DEEP_NOFAN_INSLHigh density stacking of channels in the deep water intraslope basin environment.
TRANS_INSL_AMLG_SHEETAmalgamated Sheets EnvironmentTRANS_DEEP_NOFAN_INSLHigh density stacking of sheet deposits in the deep water intraslope basin environment.
ANST_ABND_CHNLAnastomosed Abandoned Channel EnvironmentANSTAn anastomosed channel which is no longer active, but may be filled with deposits.
ANST_CHNLAnastomosed Channel EnvironmentANSTAn anastomosed river channel.
ANST_CRVS_CHNLAnastomosed Crevasse Channel EnvironmentANSTSmall channel cutting across the levee of an anastomosed channel.
ANST_CRVS_SPLAYAnastomosed Crevasse Splay EnvironmentANSTAn environment of deposition by outwash from a break through the levee of the outer bend of an anastomosed channel.
ANSTAnastomosed EnvironmentALUV_SEDMMulti-channel rivers that have relatively low gradients, deep and narrow channels, and stable banks
ANST_LEVEEAnastomosed Levee EnvironmentANSTA raised embankment deposited along the shore of an anastomosed channel.
CARB_BACK_REEFBack Reef EnvironmentCARB_REEFLagoon side back of the carbonate reef core.
TRANS_BARR_BACK_SHOREBarrier Island Backshore EnvironmentTRANS_BARRThe seaward portion of a barrier coast that lies above the high tide level and in front of the barrier crest.
TRANS_BARR_BEACHBarrier Island Beach EnvironmentTRANS_BARRThe seaward portion of a barrier coast that lies between low and high tide levels, characterized by temporary accumulations of sand.
TRANS_BARR_EBB_DELTABarrier Island Ebb Tidal Delta EnvironmentTRANS_BARRSmall delta forming on the seaward side of a barrier island, deposited in the falling water portion of the tidal cycle
TRANS_BARR_FLOOD_DELTABarrier Island Flood Tidal Delta EnvironmentTRANS_BARRSmall delta forming on the landward side of a barrier island, deposited in the rising water portion of the tidal cycle
TRANS_BARR_LAGNBarrier Island Lagoon EnvironmentTRANS_BARRA shallow body of salt or brackish water, partly or completely separated from a sea or lake by a barrier island.
TRANS_BARR_MARSHBarrier Island Marsh/Swamp EnvironmentTRANS_BARRPeriodically wet or continually flooded flats in the barrier coast zone with the surface very shallowly submerged; covered dominantly with sedges, cattails, rushes, or other hydrophytic plants.
TRANS_BARR_MUD_FLATBarrier Island Mud Flat EnvironmentTRANS_BARRRelatively level area of fine grained material in a barrier coast, alternately covered and uncovered by the tide or covered by shallow water, and barren of vegetation.
TRANS_BARR_TIDAL_CHNLBarrier Island Tidal Channel EnvironmentTRANS_BARRTransverse channel across a barrier island, which permits water to sweep in and out of the lagoon.
TRANS_BARR_WASH_FANBarrier Island Washover Fan EnvironmentTRANS_BARRA fan-like deposit of sand washed over a barrier island during a storm.
TRANS_BARRBarrier Island/Strand Plain EnvironmentTRANS_RIVER_DELTARidge of sand paralleling the shoreline and extending above sea level only slightly.
CARB_REEF_CREST_BARRBarrier Reef EnvironmentCARB_REEF_CRESTA reef that lies some distance from a continental coast or volcanic island, shielding a lagoon of open water from a few hundred feet to several miles wide lies between the reef and the mainland.
MARN_BASIN_CNTRBasin Center EnvironmentMARNThe deep center region of a marine basin.
MARN_BASIN_MRGNBasin Margin EnvironmentMARNThe marginal region of a marine basin.
TRANS_DEEP_NOFAN_BASINBasin Plain EnvironmentTRANS_DEEP_NOFANA deep marine basin far separated from coastal or submarine fan processes.
TRANS_BAY_HEAD_DELTABay Head Delta EnvironmentTRANS_ESTUA delta formed where a river enters an estuarine bay.
TRANS_BAY_LAGNBay/Bay Lagoon EnvironmentTRANS_ESTUA shallow body of salt or brackish water in an estuary, partly or completely separated from the sea by barrier islands.
TRANS_BEACH_BACK_SHOREBeach Backshore EnvironmentTRANS_BARR_BEACHThe portion of a beach that lies between the mean high-tide level and the zone of sand dunes or undisturbed vegetation.
TRANS_BEACH_BERMBeach Berm/Coastal Dune EnvironmentTRANS_BARR_BEACHA low, impermanent, nearly horizontal or landward-sloping shelf, ledge, or narrow terrace on the backshore of a barrier beach, deposited by storm waves.
TRANS_BEACH_FORE_SHOREBeach Foreshore EnvironmentTRANS_BARR_BEACHThe portion of a beach between the mean high and low tide levels.
TRANS_BRAID_DELTABraid Delta EnvironmentTRANSA delta with multiple channels that interweave as a result of repeated bifurcation and convergence of flow around inter-channel bars.
BRAID_GRVLBraided Gravelly EnvironmentBRAID_STRMA braided stream characterized by excessive deposition of gravel.
BRAID_SANDBraided Sandy EnvironmentBRAID_STRMA braided stream characterized by excessive deposition of sand.
BRAID_STRMBraided Streams EnvironmentALUV_SEDMA stream characterized by excessive deposition of sand and/or gravel bars so that water flows in many branching and reuniting channels.
CARBCarbonate EnvironmentENVIEnvironment characterized by deposition of carbonates sediments either biologically or chemically.
CARB_SLOPECarbonate Slope EnvironmentCARBSloped outer portion of a carbonate platform or shelf that descends into deep water.
CARB_TIDAL_FLATCarbonate Tidal Flat EnvironmentCARBA broad, flat region of muddy carbonate sedimentation, covered and uncovered in each tidal cycle.
TRANS_CHEN_PLAINChenier Plain EnvironmentTRANS_RIVER_DELTAA mud-rich strand plain, occupied by cheniers and intervening mud-flats with marsh and swamp vegetation.
BRAID_CHUT_BARChute Bar EnvironmentBRAID_SANDA bar deposited in chute-like shape in a sandy braided stream.
TRANS_BARR_COAST_DUNECoastal Dune/Berm EnvironmentTRANS_BARRA small terrace in the backshore area of the barrier coast with its terrace facing seaward.
TRANS_COAST_PLAINCoastal Plain EnvironmentTRANSA low, broad plain that has as its lower margin an oceanic shore and its strata horizontal or gently dipping toward the sea, and generally represents an area of recently prograded continental sediment.
TRANS_DEEP_FAN_CHNLDeep Fan Channel EnvironmentTRANS_DEEP_FANChannel in the deep water fan environment.
TRANS_DEEP_FAN_DEBRDeep Fan Debris Flow EnvironmentTRANS_DEEP_FANA sediment gravity flow in which fine sediment and fluids support large particles in a deep water fan.
TRANS_DEEP_FAN_LEVEEDeep Fan Levee EnvironmentTRANS_DEEP_FANA long, broad low ridge or embankment of sediments beside and parallel to a fan channel in a deep water fan.
TRANS_DEEP_FAN_LOBEDeep Fan Lobe EnvironmentTRANS_DEEP_FANA contiguous deposit in a deep water fan within a localized area, bounded by converging stratigraphic surfaces at the distal extremity of the fan.
TRANS_DEEP_FAN_OVBADeep Fan Overbank EnvironmentTRANS_DEEP_FANA level, low-lying area adjacent to streams that is periodically flooded by stream water in the deep fan environment.
TRANS_DEEP_FAN_TRANSDeep Fan Transition EnvironmentTRANS_DEEP_FANPortion of the deep fan environment at the outermost limit of influence of continental conditions.
DEEP_LAKEDeep Lake EnvironmentLAKEA lake having subenvironments segregated by depth.
TRANS_DEEP_WATERDeep Water EnvironmentTRANSAn offshore environment where water depths exceed approximately 600 feet [200 m], the approximate water depth at the edge of the continental shelf
TRANS_DELTA_FRONTDelta Front EnvironmentTRANS_RIVER_DELTAThe seaward portion of a river delta, sloping downward into the basin at an angle steeper the delta plain.
TRANS_TIDAL_MARSHDelta Marsh/Swamp EnvironmentTRANS_RIVER_TIDALa Periodically wet or continually flooded area around a tidal stream, of saturated to shallowly submerged ground supporting trees, shrubs and grasses.
TRANS_MOUTH_BARDelta Mouth Bar EnvironmentTRANS_RIVER_DELTASand bars deposited at the mouth of a distributary channel in the river delta environment.
TRANS_DELTA_PLAINDelta Plain EnvironmentTRANS_RIVER_DELTAThe level or nearly level portion of a river delta; a flood plain characterized by repeated channel bifurcation and divergence, multiple distributary channels, and interdistributary flood basins.
TRANS_SPLAYDelta Splay EnvironmentTRANS_RIVER_DELTAA flat area of deposition of outwash material from breaks in the channel levees in a river delta.
TRANS_RIVER_DELTADeltaic/River Delta EnvironmentTRANSAn environment of deposition at the mouth of a river, where flow velocity decreases as it enters a body of standing water.
TRANS_DEEP_DSTL_LEVEEDistal Fan Levee EnvironmentTRANS_DEEP_FAN_LEVEEA long, broad low ridge or embankment of sediments beside and parallel to a fan channel in the distal portion of a deep water fan.
TRANS_DEEP_DSTL_FANDistal/Lower Fan EnvironmentTRANS_DEEP_FANThe portion of a deep water fan formed farthest from the source area.
TRANS_DIST_CHNLDistributary Channel EnvironmentTRANS_RIVER_DELTAA river branch that flows away from a main channel and does not rejoin it in the river delta environment.
DUNE_BRCHDune Barchan EnvironmentDUNEA crescent-shaped sand dune with horns pointing downwind.
DUNE_DOMEDune Dome EnvironmentDUNEMound of sand that is circular or elliptical in shape, with no slip-faces; may be formed by the modification of stationary barchans.
DUNEDune EnvironmentAEOLA heap of sand or other loose sediment accumulated by wind.
DUNE_LINR_SEIFDune Linear/Seif EnvironmentDUNE_LONGA large, sharp-crested, longitudinal dune or chain of sand dunes. If unmodified, the crest, in profile, commonly consists of a succession of curved slip faces produced by strong, but infrequent cross winds.
DUNE_LONGDune Longitudinal EnvironmentDUNEA long dune parallel to the direction of the prevailing wind.
DUNE_PARBLDune Parabolic EnvironmentDUNEA sand dune with a long, scoop-shaped form, convex in the downwind direction so that its horns point upwind, whose ground plan, when perfectly developed, approximates the form of a parabola.
DUNE_SHEETDune Sheet EnvironmentDUNEA large, irregularly shaped, commonly thin, surficial mantle of eolian sand, lacking the discernible slip faces that are common on dunes.
DUNE_STARDune Star EnvironmentDUNELarge pyramidal or star-shaped dune with three or more sinuous radiating ridges from a central peak of sand. This dune has 3 or more slip faces. Produced by variable winds. This dune does not migrate along the ground, but does grow vertically.
DUNE_STRKDune Streak EnvironmentDUNEA dune of fine mineral dust.
DUNE_TRNVDune Transverse EnvironmentDUNEA very asymmetric sand dune elongated perpendicular to the prevailing wind direction, having a gentle windward slope and a steep leeward slope standing at or near the angle of repose of sand; it generally forms in areas of sparse vegetation.
ENVIEnvironment The sum of all the effects of external conditions (physical, chemical and biological) on sedimentary deposits.
TRANS_FLUV_CHNLEstuarine Fluvial Channel EnvironmentTRANS_ESTUA major passageway or conduit for the flow of water through the uppermost landward portion of the estuary environment.
TRANS_FLUV_OVBKEstuarine Fluvial Overbank/Fluvial Floodplain EnvironmentTRANS_ESTUA level, low-lying land area adjacent to an estuary, that is periodically flooded.
TRANS_FLUV_POINT_BAREstuarine Fluvial Point Bar EnvironmentTRANS_ESTUA sand bar deposited by lateral accretion on the inner shore of a meander loop in the uppermost landward portion of the estuary environment.
TRANS_FLUV_SPLAYEstuarine Fluvial Splay EnvironmentTRANS_ESTUAn outwash of material from crevasse channels on the outer bend of a fluvial channel in the uppermost landward portion of the estuary environment.
TRANS_ESTU_POINT_BAREstuarine Point Bar EnvironmentTRANS_ESTUA sand bar deposited by lateral accretion on the inner shore of a meander loop of an estuary, showing indications of tidal fluctuation.
TRANS_ESTU_TIDAL_BAREstuarine Tidal Bar EnvironmentTRANS_ESTUA longitudinal sand bar in the funnel portion of an estuary, influenced by tidal fluctuation.
TRANS_ESTU_TIDAL_INLETEstuarine Tidal Inlet EnvironmentTRANS_ESTUA transverse channel across a barrier island or jetty at the mouth of an estuary, which permits water to sweep in and out.
TRANS_ESTUEstuary/Estuarine EnvironmentTRANS_RIVER_DELTAThe mouth of a flooded river valley, usually depositing fine-grained sediments in the brackish water .
TRANS_DEEP_FANFan EnvironmentTRANS_DEEP_WATERA deep-water, cone- or fan-shaped body of clastic sediment located seaward of large river deltas or submarine canyons.
TRANS_FAN_DELTAFan-Delta EnvironmentTRANSA body of alluvium, nearly flat and fan-shaped, deposited at or near the mouth of a mountain canyon where it enters a body of relatively quiet water.
CARB_FORE_REEFFore Reef EnvironmentCARB_REEFOcean side front of the carbonate reef core.
CARB_REEF_CREST_FRNGFringing Reef EnvironmentCARB_REEF_CRESTA reef that is closely attached to the shore. There is no lagoon or open water between the reef and the land upon which it is attached.
GLCLGlacial EnvironmentSILC_CLSTEnvironment in area affected by a glacier.
TRANS_INCS_VALYIncised Valley EnvironmentTRANSA valley developed by rejuvenated erosion downward into the substrate, beginning at the coastline and progressing upstream.
TRANS_INTER_DIST_BAYInterdistributary Bay EnvironmentTRANS_RIVER_DELTAOpen areas of shallow water within an active delta between interdistributary channels.
INTER_DUNE_DEPRInterdune Depression EnvironmentINTER_DUNERelatively sunken part of the interdune.
INTER_DUNEInterdune EnvironmentAEOLThe relatively flat surface, whether sand-free or sand-covered, between dunes.
TRANS_INSL_LEVEEIntraslope Levee EnvironmentTRANS_DEEP_NOFAN_INSLAn embankment of sediments deposited along the shore of a channel in the deep water intraslope basin environment.
TRANS_INSL_OVBKIntraslope Overbank EnvironmentTRANS_DEEP_NOFAN_INSLA level area of fine-grained deposition adjacent to intraslope channels formed by flow escaping from channel levees.
TRANS_DEEP_NOFAN_INSLIntraslope/Ponded Basin EnvironmentTRANS_DEEP_NOFANAn environment of deposition within an intraslope depression in deep water not associated with a submarine fan.
LAKE_DELTALake Delta EnvironmentLAKEA prograding body of sediment formed at the mouth of a stream coming into a lake.
LAKE_MUD_FLATLake Mudflat EnvironmentLAKEA flat area of mud deposition at the shore of a lake.
LAKE_PLAYALake Playa EnvironmentLAKEA level or nearly level area that occupies the lowest part of a completely closed lake basin and that is covered with water at irregular intervals of distance and time, forming a temporary lake.
LAKE_SHRELake Shoreline EnvironmentLAKEThe environment at the junction of land with a lake.
LAKELake/Lacustrine EnvironmentCONTLake environment.
BRAID_LONG_BARLongitudinal Bar EnvironmentBRAID_SANDA sand bar deposited in longitudinal orientation in a sandy braided stream.
TRANS_SHLW_LOWER_SHORELower Shoreface EnvironmentTRANS_SHLW_SHOREThe lower part of the zone of marine coastline between mean low-tide level and normal wave base, offshore from the zone of longshore bars.
MARNMarine Evaporites/Arid Shorelines And Basins EnvironmentENVIEnvironments of deposition from sea water.
MNDR_ABND_CHNLMeandering Abandoned Channel EnvironmentMNDRA meandering channel which is no longer active, but only contains standing water or sediment fill.
MNDR_CHNLMeandering Channel EnvironmentMNDRThe major fluvial channel in a meandering channel environment.
MNDR_CRVS_CHNLMeandering Crevasse Channel EnvironmentMNDRA small channel cutting across the levee of a meandering channel
MNDR_CRVS_SPLAYMeandering Crevasse Splay EnvironmentMNDRAn environment of deposition of outwash material from crevasse channels on the outer bend of a meandering channel
MNDRMeandering EnvironmentALUV_SEDMA fluvial environment in which channels are shaped like a series of somewhat regular, loop-like bends.
MNDR_LEVEEMeandering Levee EnvironmentMNDRAn embankment along the outer shore of a meandering channel loop, formed by overbank flow
MNDR_OXBOW_LAKEMeandering Oxbow LakeMNDRThe abandoned bow-shaped or horseshoe-shaped part of a former meander loop.
MNDR_POINT_BARMeandering Point Bar EnvironmentMNDRA sand bar deposited by lateral accretion on the inner shore of a meandering channel loop
TRANS_SHLW_MIDL_SHOREMiddle Shoreface EnvironmentTRANS_SHLW_SHOREThe middle part of the zone of marine coastline between mean low-tide level and normal wave base, in the zone of longshore bars.
TRANS_DEEP_MIDL_FANMiddle/Mid/Medial Fan EnvironmentTRANS_DEEP_FANMiddle portion of a deep water fan, which is dominated by thick proximal sandstone turbidites separated by thin mudstones.
CARB_MOUNDMound EnvironmentCARBA body of carbonate sediment shaped like a low rounded hill built by colonial organisms.
TRANS_DEEP_NOFANNon-Fan EnvironmentTRANS_DEEP_WATERA deep water environment which is not associated with a submarine fan.
CONTNonmarine/Continental EnvironmentSILC_CLSTBroad geological term which includes all environments occurring on the surface of continents, i.e. non-marine.
TRANS_SHLW_OFF_SHOREOffshore EnvironmentTRANS_SHLW_WATERA shallow water environment situated offshore on the continental shelf.
TRANS_SHLW_TRANS_OFSHOffshore-Transition EnvironmentTRANS_SHLW_WATERThe portion of coastline between normal and storm wave base.
CARB_REEF_CREST_PINAPinnacle Reef EnvironmentCARB_REEF_CRESTA tall, roughly cylindrical mass of carbonate reef.
TRANS_PRO_DELTAProdelta EnvironmentTRANS_RIVER_DELTAAn environment of deposition seaward of the main delta body in the river delta environment.
TRANS_DEEP_PROX_LEVEEProximal Fan Levee EnvironmentTRANS_DEEP_FAN_LEVEEEmbankments of sand adjacent to a submarine channel in the upper, inner portion of a deep water fan.
TRANS_DEEP_PROX_FANProximal/Upper Fan EnvironmentTRANS_DEEP_FANUpper, inner portion of a deep water fan, near the sediment supply, usually depositing coarse, channelized debris flows.
CARB_RAMPRamp EnvironmentCARBAn environment of carbonate deposition sloping gently seaward from the foot of the shore face caused by sediments retreating toward the basin.
TRANS_DEEP_NOFAN_RAMPRamp/Platform EnvironmentTRANS_DEEP_NOFANA siliciclastic depositional environment sloping evenly seaward from the shoreface, not associated with a submarine fan.
CARB_REEF_CRESTReef Crest EnvironmentCARB_REEFThe part of the reef where waves break.
CARB_REEFReef EnvironmentCARBEnvironment in which frame-building organisms producea a raised, subaqueous, shore-parallel ridge on the shallow continental shelf.
CARB_REEF_LAGNReef Lagoon EnvironmentCARB_REEFA shallow sound, channel, pond, or lake separated from the sea by a carbonate reef.
CARB_RIM_SHELFRimmed Shelf EnvironmentCARBA relatively flat, shallowly submerged platform or shelf of carbonate deposits with an abrupt, steep edge.
CARB_SABKASabkha EnvironmentCARBFlat environment of carbonate deposition at or slightly above mean high tide level.
MARN_SABKASabkha EnvironmentMARNA wide area of marine flats bordering a lagoon. Evaporite minerals are formed in such areas.
SHLW_LAKEShallow Lake EnvironmentLAKEA lake which of shallow depth in which subenvironments are segregated laterlly.
TRANS_SHLW_WATERShallow Water EnvironmentTRANSAn environment located in water depths less than approximately 300 feet [100 m].
TRANS_INSL_LAYR_SHEETSheet/Layered Sheets EnvironmentTRANS_DEEP_NOFAN_INSLA large, irregularly shaped, commonly thin, surficial mantle of sand in the deep water intraslope basin environment.
TRANS_SHLW_SHOREShoreface EnvironmentTRANS_SHLW_WATERThe zone of shoreline between mean water level and wave base.
SILC_CLSTSiliciclastic EnvironmentENVISedimentary environment characterized by silicic deposits, generally sand and shale.
TRANS_DEEP_NOFAN_SLOPESlope EnvironmentTRANS_DEEP_NOFANAn environment of deposition on the continental slope far separated from coastal processes.
TRANS_DEEP_NOFAN_SLUMPSlump/Mass Transport Complex EnvironmentTRANS_DEEP_NOFANA deep submarine landslide characterized by the downward slipping of one or more masses of rock or unconsolidated debris along lystric slip surfaces.
TRANS_DEEP_NOFAN_CANYSubmarine Canyon EnvironmentTRANS_DEEP_NOFANAn environment of deposition in a submarine canyon.
TRANS_DEEP_NOFAN_DEBRSubmarine Debris Flow EnvironmentTRANS_DEEP_NOFANA sediment gravity flow in which fine sediment and fluids support large particles in deep water not associated with a submarine fan.
TRANS_DELTA_TIDAL_CHNLTidal Channel EnvironmentTRANS_RIVER_DELTAA channel in a river delta, which permits water flow to sweep in and out of tidal lagoons.
TRANS_RIVER_TIDAL_CHNLTidal Delta Channel EnvironmentTRANS_RIVER_TIDALA channel across a tidal delta, which permits water to sweep in and out of an estuary.
TRANS_RIVER_TIDALTidal Delta EnvironmentTRANS_RIVER_DELTAA delta formed at the mouth of an estuary, dominated by tidal processes.
TRANS_TIDAL_MIXED_FLATTidal Delta Mixed Sand/Mud Flat EnvironmentTRANS_RIVER_TIDALA flat region of muddy and sandy mixed sediment, covered and uncovered in each tidal cycle in the tidal river delta environment.
TRANS_TIDAL_MUD_FLATTidal Delta Mud Flat EnvironmentTRANS_RIVER_TIDALA flat region of muddy sediment, covered and uncovered in each tidal cycle in the tidal river delta environment.
TRANS_TIDAL_SAND_FLATTidal Delta Sand Flat EnvironmentTRANS_RIVER_TIDALA flat region of sandy sediment, covered and uncovered in each tidal cycle in the tidal river delta environment.
TRANS_TIDAL_SAND_RIDGETidal Sand Ridge EnvironmentTRANS_RIVER_TIDALA large-scale, low, subaqueous ridge of sand parallel to tidal flow in the tidal river delta or tidal shelf environment, that stretches over wide areas of the seabed and is formed in conditions of strong tidal currents.
TRANS_DELTA_SAND_RIDGETidal Sand Ridge EnvironmentTRANS_RIVER_DELTAA large-scale, low, subaqueous, ridge of sand, formed parallel to tidal flow on a shallow shelf in the tide-dominated delta environment.
TRANS_TIDAL_SAND_WAVETidal Sandwave EnvironmentTRANS_RIVER_TIDALA large transverse bar in the deeper water region of the tidal river delta environment, caused by storms and tidal currents.
TRANSTransitional Coasts/Paralic EnvironmentENVIEnvironment in areas where the influence of both continental and marine conditions occur.
BRAID_TRNV_BARTransverse Bar EnvironmentBRAID_SANDA sand bar deposited in transverse orientation in a sandy braided stream.
TRANS_SHLW_UPPER_SHOREUpper Shoreface EnvironmentTRANS_SHLW_SHOREThe upper part of the zone of marine coastline between mean low-tide level and normal wave base, shoreward of the zone of longshore bars.
VOLCVolcanic EnvironmentSILC_CLSTSedimentary depositional environment in the proximity of an active volcano.

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