Table 1.

Comparison of some marine moraines studied on an allostratigraphic basis. Moraine classification into water-depth categories (discussed in the text) pertains to the basin-floor site bathymetry prior to the moraine emplacement. The categories of ice-contact zone (erosional, accretional, compound or aggradational) are as discussed in the text

Basin water depthMoraine allostratigraphyMoraine ice-proximal sideMoraine crestIce-distal sideLocality and reference
Stacking succession of allostratigraphic units (and data basis)Relics of older moraineBasin water depth behind the moraine ice-proximal sideMax. thickness of subglacially affected deposits and character of ice-contact zoneDip of glacier advance surfaceEvidence of ice-margin oscillations (O) or re-advance (R)Water depth at seafloor sillMoraine thicknessUpper fan-foreset deposits rich in diamicton or seismic signature suggestive of diamicton facies
Shallow water: 0–175 mA–A–A–A–A–A (outcrops)170 m≤1 m depositionalSubhorizontalc. 70 mc. 70 mIn units A (30–35 m)Skardmunken moraine, Norway (Lønne 1993; allostratigraphy added)
A–B–C–C–D/E (outcrops)+c. 175 mNon-exposedNon-exposed100–150? mc. 175 mNon-exposedKregnes moraine, Norway (Nemec et al. 1999)
A–A–B–C–D–E (outcrops & GPR sections)+c. 200 mc. 5 m compound10–15°O60 mc. 60 mPoorly exposedMona moraine, Norway (Lønne et al. 2001)
C–A–D/E (outcrops)Seafloor high1 m depositionalNon-exposedincreasing to 18 m5 mNon-exposedBolterdalen moraine, Svalbard (Lønne 2005; allostratigraphy added)
Intermediate: 175–350 mA–B–D–Ad–D–E Ad=deformed unit A (outcrops)c. 200 mc. 5 m erosional10–15°R290 mc. 100 mIn unit A (30–40 m) and unit Ad (10 m)Egge-Lyngås moraine, Norway (Lønne 1997)
A–A–B–D/E (outcrops)c. 300 mc. 7 m aggradational10–15°200 mc. 110 mIn unit A (c. 30 m) and unit B (25 m)Storsand moraine, Norway (Lønne & Nemec 2011)
Deep water: 350 to >1000 mA–A–A–A–B (seismic sections)DTADTA compoundDTAOc. 400 m??Evidence of discordant lenticular bodiesMoraine 7, Lake Melville, Canada (Lønne & Syvitski 1997)
A–A–B–A (seismic sections)DTADTA compoundDTAOc. 500 mc. 70 mMoraine 5, Lake Melville, Canada (Lønne & Syvitski 1997)
A–A–A–B (seismic sections)+DTADTA compoundDTARc. 600 mc. 70 mEvidence of discordant lenticular bodiesMoraine 3/4, Lake Melville, Canada (Lønne & Syvitski 1997)
  • Abbreviations: GPR, ground-penetrating radar survey; DTA, difficult to estimate (seismic section).