现代渭河西安段沉积体沉积相与岩相特征

郭岭; 贾超超; 朱毓; 任文波; 段锦川

doi:10.14027/j.cnki.cjxb.2015.03.012

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现代渭河西安段沉积体沉积相与岩相特征

郭岭, 贾超超, 朱毓, 任文波, 段锦川

文章导航 > 沉积学报 > 2015 > 33(3): 543-550

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

引用本文:

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

GUO Ling, JIA ChaoChao, ZHU Yu, REN WenBo, DUAN JinChuan. Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an[J]. Acta Sedimentologica Sinica, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

Citation:

GUO Ling, JIA ChaoChao, ZHU Yu, REN WenBo, DUAN JinChuan. Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an[J]. Acta Sedimentologica Sinica, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

引用本文:

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

Citation:

现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

1.
西北大学大陆动力学国家重点实验室西安 710069;
2.
西北大学地质学系西安 710069

基金项目: 国家自然科学基金(批准号:41302076)、西北大学大陆动力学国家重点实验室科技部专项经费(编号:BJ14266)、陕西省自然科学基金(编号:2014JQ5191)联合资助

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中图分类号: TE122.2

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文章访问数: 694
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Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

1.
State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069;
2.
Department of Geology, Northwest University, Xi'an 710069

摘要

摘要: 以渭河西安段草滩沉积体为例, 通过剖面和探槽的详细研究, 结合野外密集采样及样品的分析结果, 对现代渭河草滩沉积体的粒度特征、沉积相、岩相、地层层序及沉积模式进行了综合研究。结果表明, 现代渭河草滩河流沉积体主要由砂质、泥质和少量砾质沉积物组成, 是一个由三期沉积旋回组成的曲流河沉积体。在现代渭河草滩沉积体内部, 共识别出6种岩相, 即平行层理含细砾粗砂岩相、槽状交错层理中细砂岩相、平行层理中细砂岩相、块状层理含砾中砂岩相、交错层理含砾中砂岩和块状层理泥岩相;3种沉积微相, 即河床滞留沉积、边滩和泛滥平原, 这些沉积微相构成了草滩沉积体内部垂向上三套不同的沉积层序:下部为含砾粗砂和中砂组成的河床亚相层序, 砂质沉积厚度较大;中部为一个完整的曲流河沉积层序, 由滞留沉积、边滩和泛滥平原沉积构成;上部则主要为边滩和泛滥平原沉积层序。粒度分析结果表明河床滞留沉积物中的砂体粒径多分布在0.2~1.2 mm, 边滩沉积物中砂体粒径多分布在0.1~1.0 mm, 两者均是良好的砂矿体, 是建筑用砂的良好来源。
- 现代沉积 /
- 渭河 /
- 岩相 /
- 沉积相 /
- 粒度特征 /
- 砂矿体
Abstract: Taking modern deposit of Weihe River at Caotan, Xi'an, as an example, particle size, sedimentary facies, sedimentary sequences and depositional model were studied based on outcrops and trench observation, and test results of selected samples. The results indicate that modern Weihe River in Xi'an is a meandering river which composed by three sedimentary cycle, and sediments in the river include sandy and argillaceous sediments, and only a little of gravely sediments. There are 6 kinds of lithofacies identified in Caotan deposit of modern Weihe River, and they are coarse sandstone with some fine gravel (parallel bedding) lithofacies, medium to fine (trough cross bedding) sandstone lithofacies, medium to fine sandstone (parallel bedding) lithofacies, medium sandstone (massive bedding) lithofacies, medium sandstone with some gravel(cross bedding) lithofacies and mudstone (massive bedding) lithofacies. Three kinds of sedimentary microfacies developed well, including channel lag deposit, point bar and flood-plain microfacies, and three sedimentary sequences were composed by these sedimentary microfacies. Lower sedimentary sequence with large thickness of sandstone was composed mainly by coarse and medium sandstone. Middle sedimentary sequence is a whole meandering river sedimentary body, and is composed by channel lag deposit, point bar and flood-plain deposit. Upper sedimentary sequence is dominantly composed by point bar and flood-plain deposit. Grain size analysis show that diameter of particles in channel lag deposit is 0.2~1.2 mm, and 0.1~1.0 mm in point bar, and they are favorable sand orebody which used for building sand.
- modern deposit /
- Weihe River /
- lithofacies /
- facies /
- characterisitc of grain size /
- sand orebody

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[1]	彭思钟, 刘德勋, 张磊夫, 邱振, 王以城, 封从军, 孙萌思. 鄂尔多斯盆地东缘大宁—吉县地区山西组页岩岩相与沉积相特征 . 沉积学报, 2022, 40(1): 47-59. doi: 10.14027/j.issn.1000-0550.2021.058
[2]	李阳, 金振奎, 朱小二, 史书婷, 袁坤, 黎瑞, 王金艺. 潮控河口湾岩相类型及沉积模式 . 沉积学报, 2020, 38(4): 826-837. doi: 10.14027/j.issn.1000-0550.2019.068
[3]	吴超, 郑祥民, 王辉, 周立旻, 钱鹏. 长江三角洲第一硬质黏土层粒度多元统计分析及沉积环境判别 . 沉积学报, 2019, 37(1): 115-123. doi: 10.14027/j.issn.1000-0550.2018.100
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[6]	商晓飞, 郭颖, 侯加根, 段太忠, 赵磊. 湖泊滨岸砂坝内部结构特征剖析及其地质意义——以峡山湖现代砂坝沉积为例 . 沉积学报, 2018, 36(5): 877-889. doi: 10.14027/j.issn.1000-0550.2018.067
[7]	张昌民, 朱锐, 刘江艳, 杜家元, 李少华, 李小平. 珠江磨刀门河口交杯四沙现代沉积特征及其形成机理 . 沉积学报, 2016, 34(4): 662-669. doi: 10.14027/j.cnki.cjxb.2016.04.006
[8]	. 汕头近岸海域表层沉积物粒度特征及其输运趋势 . 沉积学报, 2014, 32(2): 314-324.
[9]	王永波. 青藏高原北部可可西里地区近4000年来尘暴事件初探——来自库赛湖沉积物粒度的证据 . 沉积学报, 2009, 27(4): 691-696.
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现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

1. 西北大学大陆动力学国家重点实验室西安 710069;

2. 西北大学地质学系西安 710069

收稿日期: 2014-05-30
修回日期: 2014-08-26
刊出日期: 2015-06-10

中图分类号: TE122.2

关键词:

现代沉积 /

渭河 /

岩相 /

沉积相 /

粒度特征 /

砂矿体

摘要: 以渭河西安段草滩沉积体为例, 通过剖面和探槽的详细研究, 结合野外密集采样及样品的分析结果, 对现代渭河草滩沉积体的粒度特征、沉积相、岩相、地层层序及沉积模式进行了综合研究。结果表明, 现代渭河草滩河流沉积体主要由砂质、泥质和少量砾质沉积物组成, 是一个由三期沉积旋回组成的曲流河沉积体。在现代渭河草滩沉积体内部, 共识别出6种岩相, 即平行层理含细砾粗砂岩相、槽状交错层理中细砂岩相、平行层理中细砂岩相、块状层理含砾中砂岩相、交错层理含砾中砂岩和块状层理泥岩相;3种沉积微相, 即河床滞留沉积、边滩和泛滥平原, 这些沉积微相构成了草滩沉积体内部垂向上三套不同的沉积层序:下部为含砾粗砂和中砂组成的河床亚相层序, 砂质沉积厚度较大;中部为一个完整的曲流河沉积层序, 由滞留沉积、边滩和泛滥平原沉积构成;上部则主要为边滩和泛滥平原沉积层序。粒度分析结果表明河床滞留沉积物中的砂体粒径多分布在0.2~1.2 mm, 边滩沉积物中砂体粒径多分布在0.1~1.0 mm, 两者均是良好的砂矿体, 是建筑用砂的良好来源。

English Abstract

Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

1. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069;

2. Department of Geology, Northwest University, Xi'an 710069

Received Date: 2014-05-30
Rev Recd Date: 2014-08-26
Publish Date: 2015-06-10

Keywords:

Abstract: Taking modern deposit of Weihe River at Caotan, Xi'an, as an example, particle size, sedimentary facies, sedimentary sequences and depositional model were studied based on outcrops and trench observation, and test results of selected samples. The results indicate that modern Weihe River in Xi'an is a meandering river which composed by three sedimentary cycle, and sediments in the river include sandy and argillaceous sediments, and only a little of gravely sediments. There are 6 kinds of lithofacies identified in Caotan deposit of modern Weihe River, and they are coarse sandstone with some fine gravel (parallel bedding) lithofacies, medium to fine (trough cross bedding) sandstone lithofacies, medium to fine sandstone (parallel bedding) lithofacies, medium sandstone (massive bedding) lithofacies, medium sandstone with some gravel(cross bedding) lithofacies and mudstone (massive bedding) lithofacies. Three kinds of sedimentary microfacies developed well, including channel lag deposit, point bar and flood-plain microfacies, and three sedimentary sequences were composed by these sedimentary microfacies. Lower sedimentary sequence with large thickness of sandstone was composed mainly by coarse and medium sandstone. Middle sedimentary sequence is a whole meandering river sedimentary body, and is composed by channel lag deposit, point bar and flood-plain deposit. Upper sedimentary sequence is dominantly composed by point bar and flood-plain deposit. Grain size analysis show that diameter of particles in channel lag deposit is 0.2~1.2 mm, and 0.1~1.0 mm in point bar, and they are favorable sand orebody which used for building sand.

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

引用本文:

郭岭, 贾超超, 朱毓, 任文波, 段锦川. 现代渭河西安段沉积体沉积相与岩相特征[J]. 沉积学报, 2015, 33(3): 543-550. doi: 10.14027/j.cnki.cjxb.2015.03.012

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现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

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Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

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现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

1. 西北大学大陆动力学国家重点实验室西安 710069;

2. 西北大学地质学系西安 710069

English Abstract

Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

1. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069;

2. Department of Geology, Northwest University, Xi'an 710069

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现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

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Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

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出版历程

目录

现代渭河西安段沉积体沉积相与岩相特征

doi: 10.14027/j.cnki.cjxb.2015.03.012

1. 西北大学大陆动力学国家重点实验室 西安 710069; 2. 西北大学地质学系 西安 710069

English Abstract

Characteristics of Sedimentary Facies and Lithofacies of Modern Weihe River in Xi'an

1. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069; 2. Department of Geology, Northwest University, Xi'an 710069

全文HTML

目录

友情链接

期刊在线

联系我们

1. 西北大学大陆动力学国家重点实验室西安 710069;

2. 西北大学地质学系西安 710069

1. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069;

2. Department of Geology, Northwest University, Xi'an 710069