THE RELATIONSHIP BETWEEN THE RED SOIL AND LOESS PALEOSOL SEQUENCE IN JINGLE, SHANXI PROVINCE, AND YULIN, SHAANXI PROVINCE
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摘要: 磁性地层学测量与对比研究表明：（１）静乐贺丰地点的静乐红土即为红色土Ａ层，记录了Ｇａｕｕｓ正极性带，年龄为２．５０～３．００Ｍａ，时代为晚上新世。榆林剖面红土记录了Ｇａｕｕｓ正极性带与Ｇｉｌｂｅｒｔ负极性带，年龄为２．５０～５．００Ｍａ，时代为上新世。（２）静乐剖面红色土Ｂ层相当于黄土—古土壤序列ＷＳ—１，ＷＳ—２，ＷＳ—３或Ｓ１５—Ｓ３２地层段，记录了Ｏｌｄｕｖａｉ与Ｒｅｕｎｉｏｎ正极性带，年龄约１．２０～２．３０Ｍａ，时代为早更新世早期。（３）榆林河沿岸红色土Ｃ带，主体为离石黄土，大致为Ｓ１—Ｌ１５地层段，部分地段出露午城黄土。Abstract: Magnetostratigraphic measurements and correlation of layers A, B and C of red soil show: （1） the Jingle red soil at Jingle and Hefeng is just layer A of red soil, in which the Gauss normal polarity zone is recorded, with an age of 2.50～3.00 Ma, corresponding to late Pliocene. Red soil in the Yulin section records the Gauss normal and Gilbert reversal polarity zones, whose age is 2.50～5.00 Ma, corresponding to Pliocene. （2） Layer B of red soil in the Jingle section, which corresponds to layer W S 1 , layer W S 2 , layer W S 3 or layer S 15 S 32 of the loess paleosol sequence, records the Olduvai and Reunion normal polarity subzones, and the age is 1.20～2.30 Ma, corresponding to early Early Pleistocene. （3） Layer C of red soil along the Yulin River bank corresponds mainly to the Lishi loess, about the S 1 S 15 interval, and partially to the Wucheng loess.
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Keywords:
- paleomagnetism /
- layers A /
- B and C of red soil /
- Jingle red soil /
- loess paleosol
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