Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment

Abstract Autogenic processes are widely found in various sedimentary systems and they play an important role in the depositional evolution and corresponding sedimentary architecture. However, autogenic processes are often affected by changing allogenic factors and are difficult to be identified and...

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Autores principales:	Wen-Jie Feng, Chang-Min Zhang, Tai-Ju Yin, Yan-Shu Yin, Jun-Ling Liu, Rui Zhu, Qing-Hai Xu, Zhe Chen
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	River-dominated delta Autogenic process Depositional process Sedimentary architecture Flume tank experiment Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/a09690d4c86743c0b824cc27d5bc9a5e
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spelling	oai:doaj.org-article:a09690d4c86743c0b824cc27d5bc9a5e2021-12-02T11:04:22ZSedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment10.1007/s12182-019-00389-x1672-51071995-8226https://doaj.org/article/a09690d4c86743c0b824cc27d5bc9a5e2019-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-00389-xhttps://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Autogenic processes are widely found in various sedimentary systems and they play an important role in the depositional evolution and corresponding sedimentary architecture. However, autogenic processes are often affected by changing allogenic factors and are difficult to be identified and analyzed from modern and ancient records. Through the flume tank experiment under constant boundary conditions, the depositional process, evolution principles, and the sedimentary architecture of a river-dominated delta was presented, and a corresponding sedimentary architecture model was constructed. The evolution of river-dominated delta controlled only by autogenic process is obviously periodic, and each autogenic cycle can be divided into an initial progradational stage, a middle retrogratational stage, and a late aggradational–progradational stage. In the initial progradational stage, one feeder channel incised into the delta plain, mouth bar(s) was formed in front of the channel mouth, and small-scale crevasse splays were formed on the delta plain. In the middle retrogradational stage, the feeder channel was blocked by the mouth bar(s) which grew out of water at the end of the initial stage, and a set of large-scale distributary splay complexes were formed on the delta plain. These distributary splay complexes were retrogradationally overlapped due to the continuous migration of the bifurcation point of the feeder channel. In the late aggradational–progradational stage, the feeder channel branched into several radial distributary channels, overlapped distributary channels were formed on the delta plain, and terminal lobe complexes were formed at the end of distributary channels. The three sedimentary layers formed in the three stages constituted an autogenic succession. The experimental delta consisted of six autogenic depositional successions. Dynamic allocation of accommodation space and the following adaptive sediments filling were the two main driving factors of the autogenic evolution of deltas.Wen-Jie FengChang-Min ZhangTai-Ju YinYan-Shu YinJun-Ling LiuRui ZhuQing-Hai XuZhe ChenKeAi Communications Co., Ltd.articleRiver-dominated deltaAutogenic processDepositional processSedimentary architectureFlume tank experimentScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 6, Pp 1237-1254 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	River-dominated delta Autogenic process Depositional process Sedimentary architecture Flume tank experiment Science Q Petrology QE420-499
spellingShingle	River-dominated delta Autogenic process Depositional process Sedimentary architecture Flume tank experiment Science Q Petrology QE420-499 Wen-Jie Feng Chang-Min Zhang Tai-Ju Yin Yan-Shu Yin Jun-Ling Liu Rui Zhu Qing-Hai Xu Zhe Chen Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
description	Abstract Autogenic processes are widely found in various sedimentary systems and they play an important role in the depositional evolution and corresponding sedimentary architecture. However, autogenic processes are often affected by changing allogenic factors and are difficult to be identified and analyzed from modern and ancient records. Through the flume tank experiment under constant boundary conditions, the depositional process, evolution principles, and the sedimentary architecture of a river-dominated delta was presented, and a corresponding sedimentary architecture model was constructed. The evolution of river-dominated delta controlled only by autogenic process is obviously periodic, and each autogenic cycle can be divided into an initial progradational stage, a middle retrogratational stage, and a late aggradational–progradational stage. In the initial progradational stage, one feeder channel incised into the delta plain, mouth bar(s) was formed in front of the channel mouth, and small-scale crevasse splays were formed on the delta plain. In the middle retrogradational stage, the feeder channel was blocked by the mouth bar(s) which grew out of water at the end of the initial stage, and a set of large-scale distributary splay complexes were formed on the delta plain. These distributary splay complexes were retrogradationally overlapped due to the continuous migration of the bifurcation point of the feeder channel. In the late aggradational–progradational stage, the feeder channel branched into several radial distributary channels, overlapped distributary channels were formed on the delta plain, and terminal lobe complexes were formed at the end of distributary channels. The three sedimentary layers formed in the three stages constituted an autogenic succession. The experimental delta consisted of six autogenic depositional successions. Dynamic allocation of accommodation space and the following adaptive sediments filling were the two main driving factors of the autogenic evolution of deltas.
format	article
author	Wen-Jie Feng Chang-Min Zhang Tai-Ju Yin Yan-Shu Yin Jun-Ling Liu Rui Zhu Qing-Hai Xu Zhe Chen
author_facet	Wen-Jie Feng Chang-Min Zhang Tai-Ju Yin Yan-Shu Yin Jun-Ling Liu Rui Zhu Qing-Hai Xu Zhe Chen
author_sort	Wen-Jie Feng
title	Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
title_short	Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
title_full	Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
title_fullStr	Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
title_full_unstemmed	Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
title_sort	sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/a09690d4c86743c0b824cc27d5bc9a5e
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Sedimentary characteristics and internal architecture of a river-dominated delta controlled by autogenic process: implications from a flume tank experiment

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