Sentence examples for base of sediments from inspiring English sources

U3b (between SP 2900 and 3300) is immediately underlain by U3a, which exhibits progradational characteristics (onlap at the top and downlap at the base) of sediments (Fig. 4).

Regional environments in the different stages of the Holocene beginning from the Preboreal, are considered using pollen data while local landscapes (including relief, soil, vegetation and water regime) are reconstructed on the base of sediments, fossil soils and macrofossils, as preserved in a series of burial pits of different age.

Combined with forces such as freezing and thawing, this dust ratchets pebbles and cobbles upward from beneath ground to cover a growing base of sediment.

In Talcher coalfield, base of Gondwana sediments is marked by a pile of glacial and preglacial deposits.

A core to the base of organic sediments is 14 m long and has a basal date of 1340 B.P.

As a preliminary validation of the proposed velocity model for long-period ground-motion simulations, we simulated velocity waveforms assuming a plane SH wave incidence at the base of the sediments.

Gravity modeling indicates a thin basement with a thickness of 1 3 km and a density of 2.8*103 kg/m3 between the base of the sediments and the top of the mantle, which indicates exhumed and serpentinized mantle.

This is not evident in the seismograms for the mainshock because the direct arrivals had very large amplitudes at periods slightly larger than the site resonance period of approximately 4 s (see the next section) as a result of the strong pulse-like input ground motions with periods of 6 7 s at the base of the sediments (e.g., Galetzka et al. 2015; Takai et al. 2016).

The Koppies lie at the base of lithified sediments in the form of conglomerate, quartzite, shale, and siltstone.

The gullied and channelled surface of the fan implies erosion at the base of dense, sediment-laden, turbidity currents related to the delivery of meltwater and sediment from an ice sheet grounded at the shelf edge.

The base of the sediment column is marked as the blue dashed line, which has an apparent dip to the west.