From the interpreted gamma ray log motifs, it was observed that reservoirs A1 A5, A8, A10 and A12 A14 are tidal channels; A7 and A11 are fluvial channels; A9 and A15 are shoreface sands, while only A6 is of coastal plain deposit.
Paleoflow data from 298 fluvial sandbodies indicates a paleoflow direction toward the SE (Az. 112°).
On the basis of different geomorphic features, the area has been divided into three distinct geomorphic land units and categorized as: (1) denudational, (2) fluvial and (3) coastal landform.
Category 1 areas (highest risk) had > 5 ppm 238U, category 2 had 3 5 ppm 238U, category 3 till on Cambrian sandstone, category 4 fluvial deposits downstream from risk categories 1 3, and category 5 other arable soils (low risk).
The stratigraphic framework of the 450 650 m thick alluvial succession was carried out through description and interpretation using 18 detailed sedimentary logs along a 4.5 km wide exposure, where 314 fluvial channels were analysed.
Significant amounts of reworked marine biomarkers in the lag-deposits of Early Pleniglacial (MIS4) fluvial systems indicate that this period is characterized by extensive reworking of older (MIS5) near-coastal sediments.
This paper presents 24 optically stimulated luminescence ages from a mixture of 11 fluvial and aeolian sedimentological sites on the Ghaggar-Hakra floodplain/interfluve, an area which was apparently densely populated during the Indus urban phase and subsequently.
Normalized to area, this volume yields a basin-wide erosion rate of 0.28 ± 0.11 mm yr− 1, which is similar to previous time-variable estimates of erosion throughout the Olympic Mountains, including those from river sediment yield, cosmogenic 10Be, fluvial terrace incision, and thermochronometry.
We organize this discussion into individual sections that outline how hillslope processes are related to (1) the mechanical strength and bedding orientation of bedrock, (2) the competition between channelized and hillslope processes, (3) hillslope channel coupling relationships, and (4) fluvial erosion rates.
Generally, the sandstone samples are classified as litharenite to sublitharenite according to Folk (1980), with a total average composition of Q78F3R19, and the aeolian sandstones have a more mature composition (Q82F2R16; Fig. 3b) than fluvial sandstones (Q76F3R21; Fig. 3a).
The overall known units comprise a fluvial (B04 -aeolian (B04 -aeolian-fluvial (B07, B10 and B08 -fluvialon and generally represent a progradation-retreat-progradation cycle of the alluvial fan-B08 -fluviald system with aeolian deposits occurring mainly B09ween two main progradation periods (Tang et al. 2017).
