地球化学组成揭示的杜蒙沙地化学风化和沉积再循环特征及其对风尘物质贡献的指示

袁方, 谢远云, 詹涛, 康春国, 迟云平, 马永法

Source-area Weathering and Recycled Sediment for Dumeng Sandy Land Inferred from Geochemistry Compositions: Implication for Contribution to Aeolian Dust

Fang Yuan, Yuanyun Xie, Tao Zhan, Chunguo Kang, Yunping Chi, Yongfa Ma

表1 杜蒙沙地的Sr-Nd同位素组成

Table 1 Sr and Nd isotopic composition for the Dumeng Sandy Land

样品号	⁸⁷Sr/⁸⁶Sr	¹⁴³Nd/¹⁴⁴Nd	ε_Nd(0)^a
SN1	0.7098	0.5123	-5.8911
SN3	0.7089	0.5124	-3.8429
SN71	0.7095	0.5123	-6.8274
SN5	0.7089	0.5124	-5.3839
SN7	0.7089	0.5123	-5.8521
SN53	0.7080	0.5124	-4.6036
SN54	0.7083	0.5123	-6.4373
SN59	0.7084	0.5123	-6.9445
SN60	0.7090	0.5123	-7.2566
SN8	0.7086	0.5124	-5.1888
SN9	0.7090	0.5124	-4.8962
SN11	0.7081	0.5124	-3.9014
SN12	0.7089	0.5124	-4.7012
SN47	0.7082	0.5123	-5.7155
SN48	0.7090	0.5123	-6.9250
SN49	0.7091	0.5124	-5.4424
SN50	0.7080	0.5123	-6.9250