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We found 1 data for "bedload gravels"

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1.
MEASUREMENTS OF RIVER BED GRAVEL SAMPLES FROM THE SABETO RIVER, FIJI
DESCRIPTION : Bedload gravels were collected from seven stations along the length of the Sabeto River of western Viti Levu, Fiji. The Sabeto River is an active, bedload transporting, gravel-bed system (Gale et al., 2019). Sampling was confined to clasts of the distinctive and isotropic Navilawa Monzonite, an intrusive rock that crops out only along the upper reaches of the river (Rao, 1983; Hathway, 1993). The river has entrenched the Navilawa Monzonite outcrop resulting in the direct supply of monzonite gravels to the fluvial system. Bedload gravels were collected along transects at seven stations (1 to 7) over a distance of 9.7 km. One of the sampling sites was located above the downstream boundary of the monzonite outcrop, the rest below. In addition, samples of fresh Navilawa Monzonite undergoing active physical breakdown were collected from alongside the bedrock channel at Station 0. The shape of these clasts provides us with the opportunity of observing the nature of the precursor particles as they are liberated from the rock and before they experience fluvial modification. The density of the fresh Navilawa Monzonite was estimated. A total of 883 particles, ranging in diameter (b-axis) from 12 to 337 mm, was collected. The long (a), intermediate (b) and short (c) axis of each particle was measured, along with the diameter of the sharpest corner of the maximum projection outline (Di) and the diameter of the maximum inscribed circle (Dk). At six of the stations, the mass of each particle was recorded. The dataset includes calculations of the Modified Wentworth Roundness, Maximum Projection Sphericity and Oblate–Prolate Index of each clast. At six of the stations the volume of each particle was estimated using measurements of particle mass and the density of the fresh Navilawa Monzonite.
CONTRIBUTOR : ZELINA BINTI ZAITON IBRAHIM (11/05/2023 10:28 AM)
FACULTY : FAKULTI PERHUTANAN
PUBLICATION : 0 ; FILE IN : HDFS 
HAS VIEWS : 1893 ; FOLDER IN PROJECT : 1 ; FILE IN PROJECT : 2 ; DOWNLOAD : 0 ;
KEYWORD : [Bedload gravels] , [ Sabeto River] , [ Fluvial system]

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