Sentence examples for abrupt contact from inspiring English sources

The abrupt contact between night and day, so to speak, is mediated by a viselike shape of green and yellow that clutches the edge of the orange field.

Their bottom and top often are in abrupt contact with mudstones.

The previous depositional model for the loamy mantle relied on loessfall followed by pedoturbation, but does not explain (1) the variation in sand contents across the Flats, or (2) the abrupt contact below the loamy mantle.

Around 400 cal BP, the mud was eroded by the overlying channel sand and gravel at AP1 and was covered by fine-grained natural levee deposits at AP2 with an abrupt contact.

Their bottom often has abrupt contact with mudstones F Grey sandstones with deformation structures, such as glide planes, steep fabric and slump folds G Black mudstone or silty mudstone that is mainly characterized by steeply dipping mud layers (steep fabric) and sandstone injection.

Abrupt contacts with mudstones are present at both the bottom and top surface of sandstones.

The bottom and top of the sandstone are typically abrupt contacts with mudstones.

Normal grading can also be observed, and the bottom of the sandstone has abrupt contacts with mudstone (Fig. 6).

The bottoms and tops are typically abrupt contacts with mudstones, which also display deformation structures (Fig. 7).

Evidence for paleosols include horizons of calcite and barite nodules, rhizoconcretions, drab-haloed root traces, mottling, relict bedding, gradational contacts between soil horizons C, B and A, and abrupt contacts between soil horizon A and overlying sediment (criteria of [64]).

b Sandstone with irregular abrupt top contact surface, well Jh4, 1370.89 1371.23 m.