辽东半岛滨海黄土研究之回顾与展望  

Study on the seashore loess in liaodong peninsula:review and outlook

作　　者：杨蝉玉[1,2] 张威[1] 

机构地区：[1]辽宁师范大学城市与环境学院,辽宁大连116029 [2]忻州师范学院地理系,山西忻州034000

出　　处：《国土与自然资源研究》2017年第6期43-48,共6页Territory & Natural Resources Study

摘　　要：辽东半岛和庙岛群岛滨海黄土属于我国北方黄土分布的最东界,对于我国第四纪环境变迁研究具有重要的科学意义。辽东半岛滨海黄土的主要研究成果:黄土地层与黄土高原黄土相比缺失午城黄土;粒度众数粒组为粉砂(4-8φ)和细砂(2-4φ);化学常量元素以Si O_2和Al_2O_3为主,处于中等风化阶段;磁化率值周家沟黄土剖面为17.02-91.47/10^(-8)m^3kg^(-1),变化幅度较大;该区离石黄土堆积时期气候相对凉湿,而马兰黄土堆积时期气候干冷。近期需要关注的课题:综合应用环境代用指标进行古环境恢复的研究;对其物质来源及其贡献率进行详细分析;全面分析本区域第四纪沉积物等。The seashore loess in Liaodong Peninsula and Miaodao islands belongs to the eastern boundary of the loess distribution in north China, so it is great of scientific significance to study the quaternary environmental changes. The main research results of the seashore loess in Liaodong Peninsula： there is no Wucheng loess compared with loess plateau; the average content of 4-8Ф and 2-4Ф is 76.29%, as the dominant group; Granularity of modal particle group for silt （4 to 8 phi） and fine （2-4 phi）; the chemical major element is SiO2 and A1203; susceptibility of Zhoujiagou loess is 17.02-91.47/10^-8m3kg^-1, with large variation range; the climate is cool and wet when Lishi loess formation.Some topics need to focus on recently： comprehensive application of environment indexes to research on recovering palaeoenvironment using to analyze the provenance and their contribution; to analyze quaternary sediments in Liaodong Peninsula comprehensively.

关 键 词：黄土 环境代用指标 展望 辽东半岛 

分 类 号：X144[环境科学与工程—环境科学]