Traditional ichnofabric-descriptive (semiquantitative) schemes rely upon subjective estimates of the degree to which original sedimentary fabrics have been disrupted. This paper presents an objective method of quantifying bioturbation in hemipelagic sediments based on a thin-section image-analysis technique. In order to perform these analyses, optical or backscattered electron micrographs are p...

Carbon cycling on the east coast of Australia has the potential to be strongly affected by El Niño-Southern Oscillation (ENSO) intensification and coastal development (industrialization and urbanization). We performed paleoreconstructions of estuarine sediments from a seagrass-dominated estuary on the east coast of Australia (Tuggerah Lake, New South Wales) to test the hypothesis that millennia...

Brain age prediction based on neuroimaging data could help characterize both the typical brain development and neuropsychiatric disorders. Pattern recognition models built upon functional connectivity (FC) measures derived from resting state fMRI (rsfMRI) data have been successfully used to predict the brain age. However, most existing studies focus on coarse-grained FC measures between brain r...

Grain-size analysis is a significant descriptive method to determine and evaluate depositional environments hydrodynamic conditions in addition classifying sedimentary rocks. In this study, grain-size was conducted using dry-sieving procedures on fourteen representative sandstone samples from the Wasia Formation, thick water aquifer hydrocarbon reservoir. Hydrodynamic were determined bivariate ...

Sediment management is a fundamental part of reservoir operation, but it often complicated by metal(loid) enrichment in sediments. Knowledge concerning the sources potential contaminants therefore important significance. To address this issue, concentrations and mobile fractions metal(loid)s were determined sediments respective catchment areas six reservoirs. The results indicate that reservoir...

A new extraction technique now permits ultrafine magnetite crystals to be separated from a variety of deep-sea sediments. Morphologic characterization of these particles with transmission electron microscopy reveals the presence of several distinct crystal types, some of which closely resemble those formed by the magnetotactic bacteria. The apparently biogenic magnetite particles are of single-...