JOURNAL ARTICLE
黄骅坳陷中生界砂岩地球化学特征及意义
Chen LiShiyue ChenDa LouLixin FuJihua Yan
Year: 2021 Journal: Earth Science-Journal of China University of Geosciences Vol: 46 (8)Pages: 2903-2903
Abstract
摘要: 中生代黄骅坳陷位于华北克拉通汇聚与破坏的中心，为各物源的汇集地，记录了华北中生代盆地的构造及物源演化.对研究区中生界砂岩进行了主、微量元素测试分析，结果显示，样品SiO2、Al2O3、Na2O、K2O和Fe2O3T平均含量分别为66.98%、13.65%、2.74%、3.03%和3.26%，砂岩为岩屑砂岩、长石砂岩和杂砂岩.砂岩CIA和ICV的平均值分别为56.12和0.94，均经历了一定的化学风化及再旋回作用.砂岩的母岩为长英质火成岩和再旋回沉积岩，并混杂少量基性火成岩.由三叠纪到白垩纪，中生界砂岩物源逐渐由华北北缘大陆弧演化为燕山造山带和黄骅坳陷内的岩浆作用及古隆起. 关键词: 风化 / 物源 / 构造背景 / 中生界 / 黄骅坳陷 / 地球化学
Keywords:
Computer science
Metrics
2
Cited By
0.16
FWCI (Field Weighted Citation Impact)
42
Refs
0.58
Citation Normalized Percentile
Is in top 1%
Is in top 10%
Citation History
Topics
Geochemistry and Elemental Analysis
Physical Sciences → Earth and Planetary Sciences → Geochemistry and Petrology
Geological and Geochemical Analysis
Physical Sciences → Earth and Planetary Sciences → Geophysics
Geochemistry and Geologic Mapping
Physical Sciences → Computer Science → Artificial Intelligence
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