Deltaic Deposit - an overview | ScienceDirect Topics
网页Deltaic deposits refer to sedimentary deposits formed by the accumulation of sediment in a delta, which is a landform created by the deposition of sediment where a river flows into an ocean, lake, or another body of water.
Depositional styles of deltaic systems from the inner shelf to shelf ...
网页2021年9月1日 · The deltaic depositional model of different systems tracts proposed herein provides an improved understanding of delta types, their depositional processes and controlling factors with sea level changes, and also provides an analogy for the study of deltaic systems and reservoir distribution in continental margin basins.
Deltaic Environments - SEG Wiki
网页Deltas are depositional environments where a fluvial system’s mouth contacts an open or slow moving body of water, which typically is an ocean or sea. Deltas tend to form fan or triangular shaped deposits of sediment. [1] A delta’s morphology or shape is determined by sediment deposition and transport, as well as by several sources such as ...
Deltaic Deposits and Reservoirs - ScienceDirect
网页2013年1月1日 · Deltas are among the most important of sedimentary deposits; they may hold vast quantities of oil and gas, they provide waterways and wetlands for agriculture and many of nature’s creatures, and they act as filters, repositories, and reactors for sediments, organic matter, nutrients, and pollutants ( Giosan and Bhattacharya, 2005 ).
Building resilience in Asian mega-deltas - Nature
网页2024年6月4日 · Climate change and human activities are increasing the exposure of deltaic communities to natural hazards. This Review discusses lessons that the Asian mega-deltas can share to develop long-term...
Delta | River System, Sediment Deposition & Land Formation
网页2024年9月4日 · delta, low-lying plain that is composed of stream-borne sediments deposited by a river at its mouth. A brief treatment of deltas follows. For full treatment, see river: Deltas. One of the first texts to describe deltas was History, written during the 5th century bce by Greek historian Herodotus.
Sustained increase in suspended sediments near global river …
网页2024年4月18日 · River sediments play a critical role in sustaining deltaic wetlands. Therefore, concerns are raised about wetlands’ fate due to the decline of river sediment supply to many deltas.
Deltaic Ecology - SpringerLink
网页2021年1月1日 · Deltas are depositional areas where rivers meet the sea, often forming extensive, coastal, alluvial fans. Although there is much variability, deltas tend to develop where high-energy rivers deposit their sediment loads into shallow, low-energy marine systems or, more generally, where river energies exceed marine energies.
Deltaic Depositional System - SpringerLink
网页2018年4月4日 · A delta is usually a deltaic depositional system with a protruding geometric shape in which the fixed water supply system (which finally forms a main river) supplies deposits to the coastal line (seacoast or lakeshore) and merges into water deposits in the local area.
Deltaic evolution - SpringerLink
网页Deltas are the product of rapid deposition of stream-borne sediments into relatively still-standing bodies of water. Their presence represents the continuing ability of a river to supply and deposit sand, silt and other detrital materials …