Sentence examples for upper fluvial from inspiring English sources

An upper fluvial derived zone was characterized by exchangeable Ca as the dominant cation (decreasing concentration with depth) and pyrite was absent.

Dates determined with three absolute dating methods (14C, luminescence and 230Th/U) supported the findings of the paleobotanical investigations of the Weichselian Upper Fluvial Sequence of the Scheibe opencast mine in the Niederlausitz (Lower Lusatia, eastern Germany).

The plots of coals on a model suggested by Smyth (1979) (Fig. 16), where lacustrine system and lower delta plain is represented by durite + inertite, and vitrite + clarite represents upper deltaic fluvial and lagoonal environments.

As the river development can be reconstructed in detail, the preserved sediments are considered to document all Upper Pliocene/Lower Pleistocene fluvial accumulation and erosion phases in the area under discussion.

Most sampled tephra deposits (from the greenish-gray, lacustrine lower member) proved too fine-grained or lithologically heterogeneous for 40Ar/39Ar analysis, but crystals from a pumice-rich unit (the 'Hollywood Tuff;' at the base of the reddish-brown, fluvial upper member), analyzed in three batches, yielded a middle Pleistocene 40Ar/39Ar age of 0.633 ± 0.039 Ma.

Reservoirs with medium to low porosity and medium to low permeability come from the middle-upper portions of fluvial channels in braided river delta plains of the Xishanyao Formation or from the upper part of sub-water fluvial channels in the Badaowan Formation and the Sangonghe Formation or mouth bars in braided river delta fronts of the Sangonghe Formation.

fluvial or upper deltaic plain (FDP) and fluvio-tidal or lower deltaic plain (FTDP) (Fig. 3).

Table 1 Geomorphic units of the study area Major geomorphic units Geomorphic features Fluvial or upper deltaic plain Natural levee Backswamps Meandering scrolls Ox-bow lake Channel bar River flood plain Other wetland Fluvio-tidal or lower deltaic plain Mangrove swamp Tidal flood plain.

Chronostratigraphic evidence attests to a fluvial-dominated upper estuarine environment between ~ 7500 cal.

They occur as poorly organized dunes resting on the upper part of a major fluvial sequence.

Paleo-environments range among continental fluvial, beach-foreshore, upper shoreface, lower shoreface and wave-dominated delta front.