山东黄土年代学研究进展:问题与方向

发布时间：2019-07-04 12:05

【摘要】：山东黄土是沿海地区轨道尺度气候变化和海平面变化的重要记录,冰期大量接收从出露的渤海沉积物风蚀而来的粉尘而与黄土高原等地的内陆黄土在物源上有很大不同,因此具有重要的研究价值。但与黄土高原黄土相比,山东黄土得到的关注较少,研究程度较低。年代学是开展风成沉积古气候重建的基础,由于受研究方法的制约,山东黄土的年代学研究仍然有很多问题亟待解决。重点总结山东黄土在年代学研究方面的进展,通过分析现有年代的可靠性,提出山东黄土年代学研究存在的问题;认为年代学研究应当成为现阶段山东黄土的研究重点,可通过光释光测年(或者结合~(26)Al/~(10)Be埋藏测年)来建立可靠的年代学框架,为气候变化和地貌演化研究奠定基础;同时围绕年代学研究的核心,提出了山东黄土目前值得关注的几个重要的研究方向。
文内图片：ＹＳ数据引自文献［４３］，剖面ＸＪＹ数据引自文献［４４］图２山东各地（山前—海岛）黄土剖面地层及年代Ｆｉｇ．２ＬｏｅｓｓｓｔｒａｔｉｇｒａｐｈｙａｎｄｃｈｒｏｎｏｌｏｇｙｉｎＳｈａｎｄｏｎ?

图片说明：ＹＳ数据引自文献［４３］，，剖面ＸＪＹ数据引自文献［４４］图２山东各地（山前—海岛）黄土剖面地层及年代Ｆｉｇ．２ＬｏｅｓｓｓｔｒａｔｉｇｒａｐｈｙａｎｄｃｈｒｏｎｏｌｏｇｙｉｎＳｈａｎｄｏｎ?
[Abstract]:Shandong loess is an important record of orbital scale climate change and sea level change in coastal areas. During the ice period, a large number of dust from the exposed Bohai sediment wind erosion is very different from the inland loess in the Loess Plateau and other places, so it has important research value. However, compared with loess on the Loess Plateau, Shandong loess has received less attention and less research degree. Chronology is the basis for the reconstruction of aeolian sedimentary paleoclimate. Due to the restriction of research methods, there are still many problems to be solved in the chronological study of loess in Shandong Province. This paper mainly summarizes the progress of chronological research of Shandong loess, puts forward the existing problems of Shandong loess chronological research by analyzing the reliability of the existing age, and holds that chronological research should become the research focus of Shandong loess at the present stage, and a reliable chronological framework can be established by photoluminescence dating (or combined with ~ (26) Al/~ (10) Be buried dating), which lays a foundation for the study of climate change and geomorphological evolution. At the same time, around the core of chronological research, several important research directions worthy of attention in Shandong loess are put forward.
【作者单位】：临沂大学资源环境学院;山东师范大学地理与环境学院;
【基金】：山东省自然科学基金项目(ZR2015JL015、ZR2015DL008) 国家自然科学基金项目(41462006、41672167、41472159)资助
【分类号】：P597.3

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