皮沟

UVA组：皮肤略显粗糙，皮沟、皮脊分布尚均匀，无明显角化。

Long wave ultraviolet ray ( UVA ) set : The skin was slightly rough , skin ditch and ridge distributed still even , and had no obvious cornification ;

秋皮沟一带分布一套以中酸性火山碎屑岩为主，夹少量中性熔岩及火山间歇期正常沉积的秋皮沟火山碎屑岩；

The intermediate-acid pyro-clastic rock is dominant with a few of intermediate lava and common sedimentary pyroclastic rocks formed in the volcanic intermittent activities in the Qidaogou area .

UVB组：皮纹粗乱，皮沟加深、加宽，皮脊增宽，分布不均匀，皮肤明显角化。定量分析结果与正常未照射组差异显著。

Medium-frequency wave ultraviolet ray ( UVB ) set : The dermatoglyphics were disorderly , and the skin ditch deepened , widened , and the skin ridge increased the breadth and obvious cornification , and quantitative analysis had obvious difference from that of control group .